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TL431CDR

IC VREF SHUNT ADJ 2.2% 8SOIC

TL431CDR is a precision programmable shunt regulator with an output voltage range of 2.5V to 36V, in an SOIC-8 package, operating from 0°C to 70°C, featuring low output impedance and 100mA sink current capability.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

19 items

Parameter	Value and test conditions	Source
Package	SOIC (D) 8-Pin
Operating Temperature	0°C to 70°C
Grade	Standard (Blank)
RoHS	Yes
Reference Voltage	Min: 2440 mV, Typ: 2495 mV, Max: 2550 mV (V_KA = V_ref, I_KA = 10mA, T_A = 25°C)
Adjustable Output Voltage	V_ref to 36V
Cathode Voltage (Recommended)	Min: V_ref, Max: 36 V
Cathode Voltage (Absolute Maximum)	Max: 37 V
Continuous Cathode Current (Recommended)	Min: 1 mA, Max: 100 mA
Continuous Cathode Current (Absolute Maximum)	Min: -100 mA, Max: 150 mA
Reference Input Current	Min: 2 μA, Typ: 4 μA (I_KA = 10mA, R1 = 10kΩ, R2 = ∞, T_A = 25°C)
Minimum Cathode Current for Regulation	Min: 0.4 mA, Typ: 1 mA (V_KA = V_ref, T_A = 25°C)
Off-state Cathode Current	Min: 0.1 μA, Typ: 1 μA (V_KA = 36V, V_ref = 0, T_A = 25°C)
Dynamic Impedance	Typ: 0.2 Ω, Max: 0.5 Ω (V_KA = V_ref, f ≤ 1kHz, I_KA = 1mA to 100mA, T_A = 25°C)
Deviation of reference input voltage over full temperature range	Min: 4 mV, Max: 25 mV (V_KA = V_ref, I_KA = 10mA, All other devices)
Operating Junction Temperature Range (Absolute Maximum)	Max: 150 °C
Storage Temperature Range	Min: -65 °C, Max: 150 °C
Sink-current capability	1mA to 100mA
Initial Accuracy	2% (Standard grade)

All parameters (21)ExpandCollapse

Power
Current - Cathode	1 mA
Current - Output	100 mA
Current - Supply	-
Voltage - Input	-
Voltage - Output (Max)	36 V
Voltage - Output (Min/Fixed)	2.495V
AC and DC characteristics
Noise - 0.1Hz to 10Hz	-
Noise - 10Hz to 10kHz	-
Environment and package
Mounting Type	Surface Mount
Operating Temperature	0°C~70°C(TA)
Package	Tape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Temperature Coefficient	-
Other
Base Product Number	TL431
Mfr	Texas Instruments
Output Type	Adjustable
Product Status	Active
Reference Type	Shunt
Series	-
Tolerance	±2.2%

Pinout and package

PackageSOIC (D) 8-Pin

Pin	Name	Function	Source
1		CATHODE: Shunt Current/Voltage input
2		REF: Threshold relative to common anode
3		ANODE: Common pin, normally connected to ground

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DatasheetDatasheet · 2.9 MB · 2026-10-29

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