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STM1404BSNBQ6F Datasheet(PDF) 8 Page - STMicroelectronics |
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STM1404BSNBQ6F Datasheet(HTML) 8 Page - STMicroelectronics |
8 / 35 page Description STM1404 8/36 Figure 2. QFN16 connections Note: See Section 2: Pin descriptions on page 11 for details. 1. Normal mode: low when VOUT is internally switched to VCC and high when VOUT is internally switched to battery. 2. SAL, RST, PFO, and BLD are open drain. 3. VREF only for STM1404A; VTPU for STM1404B/C. Figure 3. Block diagram 1. Required for battery-reverse charging protection 2. User supplied 3. Open drain 4. VREF only for STM1404A; VTPU for STM1404B/C 1 PFO(2) PFI TP1 (NH) BLD(2) MR RST(2) VCC VCCSW (1) VOUT VREF or VTPU (3) VBAT VSS AI09683 2 3 4 8 7 6 5 SAL(2) 9 10 11 12 13 14 15 16 TP2 (NL) TP3 (NH) TP4 (NL) AI09684a COMPARE @ POWER-UP VRST VINT VOUT VREF (4) 1.237V VREF Generator COMPARE COMPARE COMPARE COMPARE COMPARE High Temp. Sense TA > TH Low Temp. Sense TA < TL trec Generator VPFI VBAT (1) VDET VHV VLV VSO VCC PFI TP1 (NH) TP2 (NL) TP3 (NH) TP4 (NL) MR RST (3) PFO (3) BLD (3) VCCSW SAL (3) VTPU (4) BAT54J (1,2) |
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