APPLICATION INFORMATION

NOTE A : R Should provide cathode current≥1㎃ to the TL431 at minimum VI(BATT)

Figure 15. Shunt Regulator

Figure 16. Single-Supply Comparator With Temperature-Compensated Threshold

NOTE A : R Should provide cathode current≥1㎃ to the TL431 at minimum VI(BATT)

Figure 17. Precision High-Current Series Regulator

R

(SEE NOTE A)

VO

TL431

R1

0.1%

R2

0.1%

VO =

（1+

）

R1

R2

VREF

VREF

VI(BATT)

RETURN

VO

INPUT

VIT

VI(BATT)

GND

TL431

~

~ 2.5V

VON

VOFF

~

~

~

~

2.5V

VI(BATT)

VO

TL431

2N222

VO =

（1+

）

R1

R2

VREF

VI(BATT)

R

(SEE NOTE A)

2N222

4.7㏀

R1

0.1%

R2

0.1%

30Ω

0.01㎌

TL431

SHENZHEN TUOFENG SEMICONDUCTOR TECHNOLOGY CO.,LTD

www.sztuofeng.com

Jan,2019 V1.0

8

$GMXVWDEOH5HIHUHQFH6RXUFH

TL431