PLASTIC SMALL OUTLINE

TL431ACD

IC VREF SHUNT ADJ 1% 8SOIC

TL431ACD is a precision programmable shunt regulator with a reference voltage of approx. 2.5V, adjustable output up to 36V, SOIC-8 package, operating temperature 0°C to 70°C, and A-grade accuracy of 1%.Checked against the datasheet

See alternatives Ask AI FAEDatasheet PDF

All alternatives

View full report

8 alternatives on file. Sign in to view them.

Technical parameters

Datasheet-verified parameters

20 items

Parameter	Value and test conditions	Source
Package	SOIC (D) 8 Pins
Operating Free-Air Temperature	0 to 70 °C
Grade	A (1% initial accuracy at 25°C)
RoHS	Yes
Reference Voltage	Min: 2470 mV, Typ: 2495 mV, Max: 2520 mV (V_KA = V_ref, I_KA = 10mA, T_A = 25°C)
Cathode Voltage	Min: V_ref, Max: 36 V (Recommended Operating Conditions)
Continuous Cathode Current Range	Min: 1 mA, Max: 100 mA (Recommended Operating Conditions)
Minimum cathode current for regulation	Min: 0.4 mA, Typ: 0.7 mA (V_KA = V_ref, T_A = 25°C)
Reference Input Current	Min: 2 μA, Typ: 4 μA (I_KA = 10mA, R1 = 10kΩ, R2 = ∞, 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)
Off-state cathode current	Min: 0.1 μA, Typ: 0.5 μA (V_KA = 36V, V_ref = 0, T_A = 25°C)
Absolute Maximum Rating - Cathode Voltage	Max: 37 V
Absolute Maximum Rating - Continuos Cathode Current Range	Min: -100 mA, Max: 150 mA
Absolute Maximum Rating - Operating Junction Temperature Range	Max: 150 °C
Storage Temperature Range	Min: -65 °C, Max: 150 °C
Junction-to-ambient thermal resistance	85 °C/W (Package D)
Junction-to-case (top) thermal resistance	39 °C/W (Package D)
Deviation of reference input voltage over full temperature range	Min: 5 mV, Max: 50 mV (All other devices, V_KA = V_ref, I_KA = 10mA)
Deviation of reference input current over full temperature range	Min: 0.8 μA, Max: 2.5 μA (I_KA = 10mA, R1 = 10kΩ, R2 = ∞)
Ratio of change in reference voltage to the change in cathode voltage	Min: -1.4 mV/V, Max: -2.7 mV/V (I_KA = 10mA, ΔV_KA = 10V - V_ref)

All parameters (21)ExpandCollapse

Power
Current - Cathode	600 µA
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	Tube
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	±1%

Pinout and package

PackageSOIC (D) 8 Pins

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

Documents

DatasheetDatasheet · 2.9 MB · 2026-10-29

Open document center

Datasheet-verified content is extracted by AI from the manufacturer datasheet. Click a page number to view the original.