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MCP73837-AMI/MF Datasheet(PDF) 5 Page - Microchip Technology |
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MCP73837-AMI/MF Datasheet(HTML) 5 Page - Microchip Technology |
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5 / 36 page  2007-2015 Microchip Technology Inc. DS20002071C-page 5 MCP73837/8 USB port Fast Charge Current IREG 80 90 100 mA PROG2 = Low — 400 450 500 mA PROG2 = High TA = -5°C to +55°C Maximum Output Current Limit IMAX — 1200 — mA PROG1 < 833 Precondition Current Regulation (Trickle Charge Constant-Current Mode) Precondition Current Ratio IPREG/IREG 7.5 10 12.5 % (3) —15 20 25 % TA = -5°C to +55°C 30 40 50 % — 100 — % Precondition Current Threshold Ratio VPTH/VREG 64 66.5 69 % VBAT Low to High — 69 71.5 74 % Precondition Hysteresis VPHYS — 120 — mV VBAT High to Low Charge Termination Charge Termination Current Ratio ITERM/IREG 3.75 5 6.25 % PROG1 = 1 k to 10 k — 5.6 7.5 9.4 % TA = -5°C to +55°C 7.5 10 12.5 % (3) 15 20 25 % Automatic Recharge Recharge Voltage Threshold Ratio VRTH/VREG 92 94.0 96 % VBAT High to Low —95 97 99 % TA = -5°C to +55°C Pass Transistor ON-Resistance ON-Resistance RDSON — 350 — m VDD = 4.5V, TJ = +105°C Battery Discharge Current Output Reverse Leakage Current IDISCHARGE — 0.1 2 µA Standby (PROG1 or PROG2 Floating) — — 0.55 2 µA Shutdown (VDD ≤ VBAT -100 mV or VDD < VSTOP) — -6 -15 µA Charge Complete Status Indicators – STAT1, STAT2, PG (MCP73837) Sink Current ISINK —16 35 mA Low Output Voltage VOL —0.3 1 V ISINK = 4 mA Input Leakage Current ILK — 0.03 1 µA High Impedance, VDD on pin PROG1 Input (PROG1) Charge Impedance Range RPROG 1— — k (4) Shutdown Impedance RPROG 70 — 200 k Minimum Impedance for Shutdown PROG2 Inputs (PROG2) Input High Voltage Level VIH 0.8VDD —— % Input Low Voltage Level VIL — — 0.2VDD % Shutdown Voltage Level VSD 0.2VDD —0.8VDD % Input Leakage Current ILK —7 15 µA VPROG2 = VDD DC CHARACTERISTICS (Continued) Electrical Specifications: Unless otherwise indicated, all limits apply for VDD= [VREG(typical) + 0.3V] to 6V, TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]. Parameters Sym. Min. Typ. Max. Units Conditions Note 1: The supply voltage (VDD) = VAC when input power source is from AC adapter and the supply voltage (VDD) = VUSB when input power source is from the USB port. 2: The value is guaranteed by design and not production tested. 3: The current is based on the ratio of selected current regulation (IREG). The maximum charge impedance has to be less than shutdown impedance for normal operation. |
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