可调节精密并联稳压器IC TL431

	TL431	TL431A	TL431B
VO Adj(Min)(V)	2.495	2.495	2.495
VO Adj(Max)(V)	36	36	36
Initial Accuracy @ 25/deg C(%)	2	1	0.5
Temp Coeff(Typ)(ppm/ degree C)	34	34	34
Min Iz for Regulation(uA)	600	600	600
Iout/Iz(Max)(mA)	100	100	100
Pin/Package	3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 6SC70, 8SO, 8SOIC, 8PDIP, 8TSSOP	3SOT-23, 3SOT-89, 3TO-92, 5SOT-23, 6SC70, 8PDIP, 8SO, 8SOIC, 8TSSOP	3SOT-23, 3SOT-89, 5SOT-23, 8PDIP, 6SC70, 8SO, 8SOIC, 8TSSOP, 3TO-92
Approx. Price (US$)	0.14 \| 1ku	0.12 \| 1ku	0.19 \| 1ku
Operating Temperature Range(°C)	-40 to 125,-40 to 85,0 to 70	-40 to 85,0 to 70,-40 to 125	-40 to 125,-40 to 85,0 to 70
Rating	Military	Catalog	Catalog

特性

Operation From −40°C to 125°C
Reference Voltage Tolerance at 25°C
- 0.5% . . . B Grade
- 1%. . . A Grade
- 2% . . . Standard Grade
Typical Temperature Drift (TL431B)
- 6 mV (C Temp)
- 14 mV (I Temp, Q Temp)
Low Output Noise
0.2- Typical Output Impedanc
Sink-Current Capability . . . 1 mA to 100 mA
Adjustable Output Voltage . . . Vref to 36 V

说明

The TL431 and TL432 are three-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive, commercial, and military temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). These devices have a typical output impedance of 0.2 . Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. The TL432 has exactly the same functionality and electrical specifications as the TL431, but has different pinouts for the DBV, DBZ, and PK packages.

型号/规格

TL431,PJ431

品牌/商标

TI/国产

供应可调节精密并联稳压器IC TL431

特性

说明