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MM1538 Datasheet(PDF) 5 Page - Unisonic Technologies |
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MM1538 Datasheet(HTML) 5 Page - Unisonic Technologies |
5 / 21 page UTCMM1538 LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R109-009,A PIN NO. PIN NAME INPUT/OUTPUT FUNCTION INTERMAL EQUIVALENT CIRCUIT 39 START Input Voltage Multiplier DC-DC Converter Start 39 200k Ω 390k Ω BATT 40 OFF Input Voltage Multiplier DC-DC Converter OFF 27k Ω VSYS1 40 180k Ω 41 CHGVcc Input Charging Circuit Power Supply Input Charging Circuit Power Supply 42 SEL Input/Output Empty Detect Level Switch 15kΩ BATT 42 200kΩ 130kΩ 43 PREGND Pre Section Power Supply Ground Pre Section Power Supply Ground 44 PWMFIL Input PWM Phase Compensation 44 2k Ω VSYS1 2k Ω *The positive and negative outputs are the polarity with respect to the input |
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