TL431IDR2

IC VREF SHUNT ADJ 2.2% 8SOIC

TL431IDR2 is a three-terminal programmable precision reference with 2.5V reference voltage, programmable up to 36V, in SOIC-8 package, operating from -40°C to 85°C, featuring low dynamic impedance and low minimum operating current.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

20 items

Parameter	Value and test conditions	Source
Package	SOIC-8(Pb-Free)
Operating Temperature Range	-40°C to 85°C
Pb-Free	Pb-Free
Reference Input Voltage	Min: 2.475 V, Typ: 2.500 V, Max: 2.525 V (V_KA=V_ref, I_K=1 mA, T_A=25°C)
Reference Input Voltage Deviation Over Temperature Range	Typ: 5.0 mV, Max: 10 mV (V_KA=V_ref, I_K=1 mA)
Reference Input Current	Typ: 81 nA, Max: 190 nA (I_K=1 mA, R1=220 k, R2=∞, T_A=-40°C to +125°C)
Minimum Cathode Current For Regulation	Typ: 40 μA, Max: 60 μA (V_KA=V_ref)
Off-State Cathode Current	Typ: 180 nA, Max: 1000 nA (V_KA=36 V, V_ref=0 V)
Dynamic Impedance	Typ: 0.22 Ω, Max: 0.5 Ω (V_KA=V_ref, ΔI_K=1.0 mA to 100 mA, f ≤ 1.0 kHz)
Recommended Cathode to Anode Voltage	Min: V_ref, Max: 36 V
Recommended Cathode Current	Min: 0.04 mA, Max: 100 mA
Maximum Cathode to Anode Voltage	37 V
Maximum Cathode Current Range, Continuous	-100 to +150 mA
Maximum Reference Input Current Range, Continuous	-5 to +10 mA
Operating Junction Temperature	150 °C
Storage Temperature Range	-65 to +150 °C
Total Power Dissipation	0.52 W @ T_A = 25°C (SOIC-8, Derate above 25°C Ambient Temperature)
ESD Rating (HBM)	>2000 V (Human Body Model per JEDEC JESD22-A114FC)
ESD Rating (CDM)	>1000 V (Charged Device Model per JEDEC JESD22-C101E)
Latch-up Protection	Exceeds ±100 mA per JEDEC standard JESD78

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	-40°C ~ 85°C (TA)
Package	Tape & Reel (TR) Cut Tape (CT)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Temperature Coefficient	50ppm/°C Typical
Other
Base Product Number	TL431
Mfr	onsemi
Output Type	Adjustable
Product Status	Obsolete
Reference Type	Shunt
Series	-
Tolerance	±2.2%

Pinout and package

PackageSOIC-8(Pb-Free)

Pin	Name	Function	Source
1		Reference
2		Cathode
3		Anode

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DatasheetDatasheet · 871.9 KB · 2026-11-10 DatasheetDatasheet · 670.3 KB · 2026-11-09 DatasheetDatasheet · 249.7 KB · 2026-09-21

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