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TC43 Datasheet(PDF) 5 Page - TelCom Semiconductor, Inc |
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TC43 Datasheet(HTML) 5 Page - TelCom Semiconductor, Inc |
5 / 6 page ![]() 5 TC43 LINEAR BUILDING BLOCK – VOLTAGE REFERENCE, DUAL OP AMP, DUAL COMPARATOR WITH SHUTDOWN MODE PRELIMINARY INFORMATION Figure 3. Dual Low Dropout Regulator Figure 2. Precision Battery Monitor R2, 330k, 1% R4, 470k, 1% R5, 7.5M +5V R6, 7.5M R3, 470k, 1% R1, 270k, 1% Vr TO SYSTEM DC/DC CONVERTER 3V ALKALINE TC43 BATTFAIL BATTLOW CMPTR1 + – CMPTR2 + – AMP1 + – Vr V IN V OUT1 C1, 1 µF C2, 1 µF 2N2222 V OUT = Vr x (RA + RB)/RB RA RB RA RB 2N2222 TC43 SHDN V OUT2 AMP2 + – AMP1 + – |