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MAX77751 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX77751 Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 40 page  MAX77751 3.15A USB-C Autonomous Charger for 1-Cell Li+ Batteries www.maximintegrated.com Maxim Integrated | 5 Electrical Characteristics (Limits are 100% tested at TA = +25°C. Limits over the operating temperature range and relevant supply voltage range are guaranteed by design and characterization.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS GENERAL ELECTRICAL CHARACTERISTICS Battery Only Quiescent Current IBATT_Q USB Type-C as UFP and BATT = SYS = 3.6V 30 50 µA SWITCHING MODE CHARGER CHGIN Voltage Range VCHGIN Operating voltage (Note 1) VCHGIN_ UVLO VCHGIN_ OVLO V CHGIN Overvoltage Threshold VCHGIN_OVLO VCHGIN rising 13.4 13.7 14 V CHGIN Overvoltage Threshold Hysteresis VCHGINH_OVL O VCHGIN falling 300 mV CHGIN to GND Minimum Turn-On Threshold Accuracy VCHGIN_UVLO VCHGIN rising 4.6 4.7 4.8 V CHGIN to SYS Minimum Turn-On Threshold VCHGIN2SYS VCHGIN rising VSYS + 0.12 VSYS + 0.20 VSYS + 0.28 V CHGIN Adaptive Voltage Regulation Threshold Accuracy VCHGIN_REG 4.4 4.5 4.6 V CHGIN Current Limit Range CHGIN_ILIM Automatically configured after charger- type detection. 0.5 3.0 A CHGIN Supply Current IIN VCHGIN = 5.0V, Charger enabled, VSYS = VBATT = 4.5V, (No switching, battery charged) 2.7 4 mA VCHGIN Input Current Limit IINLIMIT Charger enabled, 500mA input current setting, TA = +25°C 423 460 500 mA Charger enabled, 1500mA input current setting, TA = +25°C 1300 1400 1500 Charger enabled, 3000mA input current setting, TA = +25°C 2600 2800 3000 CHGIN Self-Discharge Down to UVLO Time tINSD Time required for the charger input to cause CHGIN capacitor to decay from 6.0V to 4.3V 100 ms CHGIN Input Self- Discharge Resistance RINSD 44 kΩ CHGIN to BYP Resistance RCHGIN2BYP Bidirectional 45 mΩ LX High-Side Resistance RHS 60 mΩ LX Low-Side Resistance RLS 60 mΩ BATT to SYS Dropout Resistance RBAT2SYS 20 mΩ CHGIN to BATT Dropout Resistance RCHGIN2BAT Calculation estimates a 0.04Ω inductor resistance (RL). RCHGIN2BAT = RCHGIN2BYP + RHS + RL + RBAT2SYS 165 mΩ LX Leakage Current LX = PGND or BYP, TA = +25°C 0.01 10 µA |
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