TC43EPR View Datasheet(PDF) - TelCom Semiconductor, Inc

Part Name

Description

MFG CO.

TC43EPR

LINEAR BUILDING BLOCK – VOLTAGE REFERENCE, DUAL OP AMP, DUAL COMPARATOR WITH SHUTDOWN MODE

TelCom Semiconductor, Inc 

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LINEAR BUILDING BLOCK –

PRELIMINARY INFORMATION

VOLTAGE REFERENCE, DUAL OP AMP,

DUAL COMPARATOR WITH SHUTDOWN MODE

TC43

3V

ALKALINE

TO SYSTEM DC/DC

CONVERTER

R4, 470k, 1%

+

AMP1

–

R2, 330k, 1%

R5, 7.5M

+

CMPTR1

–

BATTLOW

TC43

R1, 270k, 1%

Vr

+5V

–

CMPTR2

+

R6, 7.5M

R3, 470k, 1%

BATTFAIL

Figure 2. Precision Battery Monitor

VIN

SHDN

+

AMP1

–

2N2222

VOUT1

+

AMP2

–

2N2222

VOUT2

Vr

RA

C1, 1µF

RA

C2, 1µF

RB

RB

TC43

VOUT = Vr x (RA + RB)/RB

Figure 3. Dual Low Dropout Regulator

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