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带电流检测功能的汽车双通道低压差线性稳压器

带电流检测功能的汽车双通道低压差线性稳压器

HL8112 is a compact, high efficiency synchronous hysteretic buck converter capable of delivering up to 12A continuous output current and 15A peak output current from a wide input voltage range of 2.85V to 18V. The HL8112 features a highly accurate internal voltage reference. The default reference voltage can be selected via the A0/REF pin, while the output voltage is set by an external resistor divider from VOUT to FB. The VOUT reference voltage is programmable through the I²C interface from 0.5V to 1.108V in 4mV steps, and the device supports Dynamic Voltage Scaling (DVS) by adjusting the reference voltage and slew rate. The soft start time is programmable with an external capacitor on the SS pin. The HL8112 integrates multiple protection features, including output overvoltage protection, overcurrent protection, short circuit protection, and thermal shutdown. Two integrated 8 bit ADCs are provided for monitoring output voltage and output current. The device operates over an ambient temperature range of –40°C to +125°C. The HL8112 is available in a 3mm × 4mm, 14 pin QFN package.

The HL7046 is a highly integrated, single-cell, Li-ion/Li-polymer battery charger with power path management for space-limited portable applications. The HL7046 takes input power from either an AC adapter or a USB port to supply the system load and charge the battery simultaneously. The charger function features pre-charge (PRE.C), fast current (CC), constant voltage (CV) regulation, charge termination, and auto-recharge. The power path management function ensures continuous power to the system by automatically selecting either input or battery, or both. This function features a low dropout regulator from the input to the system. The power path management separates charging current from the system load, which allows for proper charge termination and keeps the battery in full-charge mode. The HL7046 provides a system short-circuit protection (SCP) function by limiting the current from the input to the system and the battery to the system. This feature is especially critical for preventing the Li-ion battery from being damaged due to an excessive high current. An on-chip battery under-voltage lockout (UVLO) cuts off the path between the battery and the system if the battery voltage drops below a programmable battery UVLO threshold. This prevents the Li-ion battery from being over-discharged. An integrated I²C control interface allows the HL7046 to program the charging parameters, such as input current limit, input minimum voltage regulation, charging current, battery regulation, charging current, battery regulation voltage, safety timer, and battery UVLO.

The HL7040C series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at space limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The HL7040C has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer. The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded. The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the HL7040C. The fast charge current value is also programmable via an external resistor. HL7040C is available in a 10-pin DFN package.

The HL7139A is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter and reverse blocking MOSFET (QRB FET) and shows 97.4% efficiency for 4.5V output and 5A charging current with 2x22uF per phase. The switched capacitor converter architecture of this device and the integrated FET are optimized to enable a 50% duty cycle operation under Charge Pump (CP) Mode. The CP mode allows the output voltage VOUT to be around half of the input voltage VIN and the output current to be double of the input current, reducing the losses over the input power cable as well as limiting the temperature rise in the application. The dual-phase architecture reduces the input capacitance requirements as well as reducing the input voltage ripple. Besides CP Mode, the device also has Bypass (BP) Mode. BP Mode allows VIN forwardly passing through internal power FETs to VOUT without any conversion. The HL7139A provides CC regulation and CV regulation through controlling the QRB FET for a safe charging operation. CC regulation is controlled through a close loop of the input current sensing or battery current sensing and CV regulation is controlled through a close loop of the battery voltage sensing. In addition, HL7139A also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating. The HL7139A has all the necessary protections to ensure the safe operation. The device includes OTP (Over-Temperature Protection), VIN UVP/OVP, IIN OCP/UCP, VOUT OVP/UVP, VBAT OVP, IBAT OCP, PMID to VOUT OV/UV, CFLY SCP (Short Circuit Protection), VIN SCP, VOUT SCP and Watchdog Timer. Besides all the protections above, HL7139A also features 12-bit ADC that can offer VIN, IIN, VOUT, VBAT, IBAT, VTS, TDIE information to system for optimizing charging control. HL7139A is available in a 36-Bump WLCSP package with 2.65mm x 2.61mm size.

The HL7138 is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitor converter and reverse blocking MOSFET (QRB FET). The HL7138 has 97.4% efficiency at 4.5V output and 5A current with 2x22uF per phase. The switched capacitor converter architecture and the integrated FETs in device are optimized to enable 50% duty cycle operation under charge pump (CP) mode. The CP mode allows output voltage (VOUT) to be around half of the input voltage (VIN) and output current to double the input current, reducing input power cable loss and limiting temperature rise in application. The dual-phase architecture reduces input capacitance requirements and input voltage ripple. Besides the CP mode, the device also has bypass (BP) mode. The BP mode allows VIN forwardly passing through internal power FETs to VOUT without any conversion. The HL7138 provides CC (Constant Current) and CV (Constant Voltage) regulations through controlling the QRB FET for safe charging operation. The CC regulation is controlled through a closed loop of input current sensing or battery current sensing. The CV regulation is controlled through a closed loop of battery voltage sensing. In addition, the HL7138 also supports thermal regulation loop in case the CV/CC regulation causes overheating device.

The HL7137 is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter, a reverse blocking MOSFET (QRB FET) and shows 97.4% efficiency at 4.4V output and 5A current with flying capacitor, 2x22µF, per phase. The device features an OVP protection with an external FET to reduce the total BOM in applications. The 2:1 CP mode allows the output voltage, VOUT, to be around half of the input voltage, VIN, and the output current to be double of the input current. The device provides CC (Constant Current) and CV (Constant Voltage) regulation through the QRB FET for a safe charging operation in 2:1 CP mode. The CC regulation is controlled through a close loop of the input current sensing and CV regulation is controlled through a close loop of sensing the battery voltage. In addition, the device also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating in 2:1 CP mode. The device has all the necessary protections to ensure the safe operation. The device includes OTP (Over-Temperature Protection), VIN UVP (Under-Voltage Protection), OVP (Over-Voltage Protection), IIN OCP (Over-Current Protection), UCP (Under-Current Protection), VOUT OVP/UVP, VBAT OVP, OCP, PMID to VOUT OV/UV Tracking, CFLY SCP (Short Circuit Protection), VIN SCP, VOUT SCP, QRB RCP (Reverse-Current Protection) and Watchdog Timer. Besides all the protections above, the device also features 12-bit ADC that offers VIN, IIN, VOUT, VBAT , VTS, TDIE information to system for optimizing charging control.

The HL7136 is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter and reverse blocking MOSFET (QRB FET) and shows 97.4% efficiency for 4.5V output and 5A charging current with 2x22uF per phase. The switched capacitor converter architecture of this device and the integrated FET are optimized to enable a 50% duty cycle operation under Charge Pump (CP) Mode. The CP mode allows the output voltage VOUT to be around half of the input voltage VIN and the output current to be double of the input current, reducing the losses over the input power cable as well as limiting the temperature rise in the application. The dual-phase architecture reduces the input capacitance requirements as well as reducing the input voltage ripple. Besides CP Mode, the device also has Bypass (BP) Mode. BP Mode allows VIN forwardly passing through internal power FETs to VOUT without any conversion. The HL7136 provides CC regulation and CV regulation through controlling the QRB FET for a safe charging operation. CC regulation is controlled through a close loop of the input current sensing or battery current sensing and CV regulation is controlled through a close loop of the battery voltage sensing. In addition, HL7136 also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating. The HL7136 has all the necessary protections to ensure the safe operation. The device includes OTP (Over-Temperature Protection), VIN UVP/OVP, IIN OCP/UCP, VOUT OVP/UVP, VBAT OVP, IBAT OCP, PMID to VOUT OV/UV, CFLY SCP (Short Circuit Protection), VIN SCP, VOUT SCP and Watchdog Timer. Besides all the protections above, HL7136 also features 12-bit ADC that can offer VIN, IIN, VOUT, VBAT, IBAT, VTS, TDIE information to system for optimizing charging control. HL7136 is available in a 36-Bump WLCSP package with 2.65mm x 2.61mm size.

The HL7132D is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter, a reverse blocking MOSFET (QRB FET) and shows 97.37% efficiency at 4.5V output and 4A current with flying capacitor,1×22µF, per phase at fSW=1.1MHz. The device features two different switching modes, 2:1 and 1:2 CP mode. The 2:1 CP mode allows the output voltage, VOUT, to be around half of the input voltage, VIN, and the output current to be double of the input current. In 1:2 CP mode, a voltage at VIN will be double of VOUT voltage. The HL7132D provides CC (Constant Current) and CV (Constant Voltage) regulation through controlling the QRB FET for a safe charging operation in 2:1 CP mode. CC regulation is controlled through a close loop of the input current sensing or battery current sensing and CV regulation is controlled through a close loop of the battery voltage sensing. In addition, HL7132D also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating in 2:1 CP mode.

The HL7132 is the low voltage 2:1 fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter, a reverse blocking MOSFET (QRB FET) and shows 97.11% efficiency at 4.5V output and 5A current with flying capacitor,1x22µF, per phase. The switched capacitor converter architecture and the integrated FETs in the device are optimized to enable a 50% duty cycle operation under Charge Pump (CP) Mode. The 2:1 CP mode allows the output voltage, VOUT, to be around half of the input voltage, VIN, and the output current to be double of the input current, reducing the losses over the input power cable as well as limiting the temperature rise in the application. The dual-phase architecture reduces the input capacitance requirements as well as reducing the input voltage ripple. The HL7132 provides CC (Constant Current) and CV (Constant Voltage) regulation through controlling the QRB FET for a safe charging operation. CC regulation is controlled through a close loop of the input current sensing or battery current sensing and CV regulation is controlled through a close loop of the battery voltage sensing. In addition, HL7132 also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating. The HL7132 has all the necessary protections to ensure the safe operation. The device includes OTP (Over-Temperature Protection), VIN UVP (Under-Voltage Protection)/OVP (Over-Voltage Protection), IIN OCP )Over-Current Protection)/UCP (Under-Current Protection), VOUT OVP/UVP, VBAT OVP, IBAT OCP, PMID to VOUT OV/UV, CFLY SCP (Short Circuit Protection), VIN SCP, VOUT SCP, QRB RCP (Reverse-Current Protection) and Watchdog Timer. Besides all the protections above, HL7132 also features 10-bit ADC that can offer VIN, IIN, VOUT, VBAT, IBAT, VTS, TDIE information to system for optimizing charging control.HL7132 is available in a 42-Bump WLCSP package with 2.95mm x 2.6mm size.

The HL7227 is a dual phase, up to 98% efficiency and 10V/6A maximum output power switched capacitor down conversion solution. This architecture and the integrated FETs are optimized to enable a 50% duty cycle under CP Mode, CP_FWD allows output voltage VOUT is around half of input voltage WPC/PMID and input current to be half the current delivered to the output, reducing the losses over the input power cable as well as limiting the temperature rise in the application. CP_REV allows output voltage WPC/PMID is around twice of input voltage VOUT and output current to be half of input current. The dual-phase architecture reduces the input cap requirements as well as reducing the input voltage ripple. Besides CP Mode, HL7227 also has BP Mode. BP_FWD allows WPC/PMID forwardly passing through internal power FETs to VOUT without any conversion. BP_REV allows VOUT reversely passing through internal power FETs to WPC/PMID without any conversion. In between PMID and VOUT, HL7227 allows loading current up to 5A. In between WPC and VOUT, HL7227 allows loading current up to 3.0A. HL7227 also supports BP Mode and CP Mode switch automatically switch in forward direction. The switch mode switch threshold is configurable. HL7227 Integrates all the necessary protections to ensure safe operation, including Input UVLO, WPC/PMID OVP, VOUT OVP, PMID to VOUT OVP/UVP, CFLY SCP, Current Limit, OTP etc. HL7227 supports Master-Slave operation for expanding maximum driving capability from 5A to 12A under CP_FWD. The HL7227 is available in a 2.6mm x 2.8mm 36-bump wafer level CSP package.

HL7010 is a simple fully integrated switch-mode Li-ion battery chargers providing 3.78A max charge current for single cells. The charge will charge the battery without power path management, which will provide low cost and compact charging solutions for smart phones, tablets, power banks and other portable devices. To further reduce the cost and size and increase the charging efficiency, the charger removes the current sense resistor and uses unique sense method to get accuracy charge current control. Internal power switches are optimized to get high efficiency with different input voltage which will reduce the charging time. HL7010 supports a wide range of input sources, including standard USB host port, USB charging port and AC-DC adapter. It supports an input operating voltage from 4.0V to 10V and can power up the system rail without a battery. It can support BC1.2 detection which can get proper input current limit to get full use of the power provided by the input source. HL7010 can manage the complete charging cycle of a Li-ion battery autonomously with the presence of an I2C host. It detects the battery voltage and automatically charges the battery in three phases: pre-charge, constant current, and constant voltage. It automatically terminates charging when the battery is fully charged and re-starts a charging cycle if the battery voltage falls below the recharge threshold. Its I2C interface provides maximum programmability for charging parameters and system-level communication. When the I2C host is not present, a built-in safety timer stops charging after the timer expires to assure safety battery operation. HL7010 supports OTG function which will provide configurable output voltage at VBUS, the max output current can get up to 1.6A. HL7010 integrates comprehensive protections mechanism to ensure safe operation, including input over voltage and under voltage, VBAT over voltage, inductor over current, thermal regulation and thermal shutdown etc. HL7010 is available in a compact 1.6mm x 2.0mm WLCSP-20 package.

HL7095 is a fully integrated switch-mode Li-ion battery chargers with power FETs, power path management, I²C interface, reverse boost function. It can be used with single cell or multiple-cell in parallel Li-ion and Li-polymer batteries in a wide range of wearable devices, smart phones, tablets, power banks and other portable devices. Its switch-mode operation and low-resistance power path maximize charging, discharging and boost efficiency, reduce battery charging time and extend battery life during the discharging phase. This device supports a wide range of input sources, including standard USB host port, USB charging port and AC-DC adapter. It supports an input operating voltage from 4V to 12V and can power up the system rail without a battery. It can automatically adjust to the maximum power output of the input source via the input dynamic power management control (INDPM). HL7095 integrates comprehensive protections mechanism to ensure safe operation of the battery, including battery temperature monitoring via negative temperature coefficient (NTC) thermistor, charging safety timer, over-voltage and under-voltage detection. The device also provides output over-current protection and regulates its on-chip junction temperature (TJ_REG) to be no more than thermal regulation threshold by regulating its charging current. HL7095 is available in a 2.17mm x 2.57mm 30 balls WLCSP package.

The HL8261 is a high-performance USB Type-C connector protection IC that offers over-voltage protection (OVP) and ESD protection for the CC and SBU signals. When the HL8261 detects an over-voltage condition in the USB connector, it will shut down all four conducting paths to protect downstream circuits on the system side from damage. HL8261’s four input pins (IN_CC1/2, IN_SBU1/2) with 24VDC maximum voltage rating which provides robust protection against 20V Short-to-VBUS over-voltage conditions. The SBU and CC switches have low on-capacitance which allows high-speed signals to pass through without loss. The CC switches have low on-resistance that allows up to 1.25A for VCONN power. During dead battery conditions, the internal resistors automatically pull down on CC1/2 such that the up-stream source provides 5V on VBUS. Most systems require ESD protection for external pins. The HL8261 offers IEC61000-4-2 ESD protection for the CC1, CC2, SBU1, and SBU2 pins and eliminates the need to place discrete high voltage TVS diodes on the USB connectors. The HL8261WL01 is packaged in a RoHS and Green compliant 16-bump WLCSP package.

The HL5502 is high voltage protection wireless coil switch to protect system against positive and negative COIL pin voltage faults up to ±40V, and features low switch ON resistance, 90mΩ (typ). The device features two internal MOSFETs connected in series, therefore two power pins, COIL and AC, are completely isolated when it is disabled. HL5502 employs floating gate drive architecture to pass DC or AC up to 1MHz from either of COIL or AC pins. HL5502 is controlled through ENn pin and EN_POL pin. When ENn pin is driven low and EN_POL is tied to GND, the internal power FETs are enabled if either of VIN or VCC is higher than its under-voltage lockout threshold.The HL5502 is available in 16-pin WL-CSP package.

The HL5099 provides a dual channel VBUS power switches and 3.3V LDO for USB PD application. The device includes a bidirectional high voltage switch which supports up to 22V sink and 6V source voltage, VOTG switch supporting up to 13.2V source voltage and a 100mA 3.3V LDO providing power supply to PD controller in dead battery operation. Between VBUS and VCHG, back-to-back high voltage switches (HVSW) is implemented, and its AMR is 28V for both pins. The integrated power switch can be configured as a bi-directional switch with an appropriate I2C control or enable pins. In the SINK mode, allowable current is continuous 7A. In the source mode, switch current flows from VCHG to VBUS and maximum allowable current is 3A. From the VOTG to VBUS (VOTG mode), there is back-to-back power switch which AMR is 16V on VOTG. This switch is to source power from VOTG to VBUS up to 13.2V and 3A continuous current. This power switch has an ideal diode feature and supports fast role swap for USB PD3.0 application. HL5099 has built-in protections, programmable VBUS over voltage protection, reverse current protection, short current protection, programmable overcurrent protection in SOURCE / VOTG modes, Over temperature protection. VBUS discharge circuit is integrated to meet USB PD VBUS discharging requirement. To decrease inrush current during normal startup, turn on slew rate control has been built in for both power switches. It is also possible to set the various parameter and monitor the status of the HL5099 using I2C communication. Source switch selection, OVP threshold and Current Limit Protection level could be set through I2C communication. Various device status could be monitored using I2C including device modes (SINK/SRC/VOTG), protection flag.The HL5099 is available in a 42-pin WLCSP package.

The HL5098 is an over-voltage protecting solution aiming at data channels from the USB port. It contains two switches with high bandwidth suitable for USB 2.0 D+/D- signal transmitting. With the extremely fast over-voltage protection, HL5098 can block dangerous voltage from the USB connector within ~100ns merely. HL5098 is available in a 6-pin DFN package.

The HL5095 is a slew-rate controlled, low Rdson Over voltage protection device. It is used in between a power source and a load to protect and isolate power source against unwanted abnormal voltage and current condition. Especially, in the OTG mode of smartphone, the HL5095 could be placed between OTG boost regulator and USB port. The HL5095 can protect boost regulator in smartphone from the USB fault conditions like overvoltage or overcurrent condition. In order to be used at high voltage application (9V or above), the HL5095A/HL5095KA and HL5095B/HL5095KB apply a high voltage device power FET switch and a maximum input voltage is 13.5V. Its over voltage protection level is set to 14.2V in HL5095A/HL5095KA version, 10.4V in HL5095B/HL5095KB and 5.8V in HL5095C/HL5095KC. To prevent excessive input voltage or battery droop resulting from a large inrush current, the HL5095 also implements several protection functions, such as output over voltage and input under-voltage protection, over-current protection with FLTB flag and over-temperature protection. HL5095 is available in a 9-pin WLCSP package.