Shenzhen Tuofeng Semiconductor Technology Co., Ltd
TFTL431
PROGRAMMABLE PRECISION REFERENCES
The TL431 is three-termina...
Shenzhen Tuofeng Semiconductor Technology Co., Ltd
TFTL431
PROGRAMMABLE PRECISION REFERENCES
The TL431 is three-terminal adjustable shunt
regulator with specified termal stability. The output voltage may be set to any value between V REF(Approx. 2.5V) and 36V with two external resistors. This device has a typical output inpedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making this device excellent replacement for zener diodes in many application.
TO-92 (TOP VIEW)
3. 2. 1.
SOT-23 2.
SOT-89
FEATURES
1. 3.
1. 2. 3.
1. REF 2. ANODE 3. CATHODE
● Equivalent Full Range Temperature Coefficient 50PPM/℃ ● Temperature Compensated For Operation Over
Full Rate Operating Temperature Range ● Adjustable Output Voltage ● Fast Turn-on Response ● Sink Current Capability 1㎃ to 100㎃ ● Low (0.2Ω Typ.) Dynamic Output Impedance ● Low Output Noise
FUNCTION BLOCK DIAGRAM
BLOCK DIAGRAM
REFERENCE
2.495VREF
ANODE
CATHODE
CATHODE(K)
REFERENCE(R) ANODE(A)
Oct. 2003 - Rev 03
1
Shenzhen Tuofeng Semiconductor Technology Co., Ltd
TF TL431
ABSOLUTE MAXIMUM RATINGS
(Full Operating Ambient Temperature Range Applies Unless Otherwise Noted)
CHARACTERISTIC Cathode Voltage Continuous Cathode Current Range Reference Input Current Range Junction Temperature Operating Temperature Storage Temperature Total Power Dissipation
SYMBOL VKA IKA IREF TJ TOPR TSTG PD
RATING 37
-100~+150 0.05~10 150 -20 ~ 85 -65 ~ 150 700
UNIT V ㎃ ㎃ ℃ ℃ ℃ ㎽
TL431-0.3% ELECTRICAL CH...