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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP73833 датащи(PDF) 4 Page - Microchip Technology |
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MCP73833 датащи(HTML) 4 Page - Microchip Technology |
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4 / 26 page  MCP73833/4 DS22005A-page 4 © 2006 Microchip Technology Inc. Preconditioning Current Regulation (Trickle Charge Constant Current Mode) Precondition Current Ratio IPREG / IREG 7.5 10 12.5 % PROG = 1.0 k Ω to 10 kΩ 15 20 25 % TA=-5°C to +55°C 30 40 50 % — 100 — % Precondition Voltage Threshold Ratio VPTH / VREG 64 66.5 70 % VBAT Low to High 69 71.5 75 % Precondition Hysteresis VPHYS — 100 — mV VBAT High to Low Charge Termination Charge Termination Current Ratio ITERM / IREG 3.75 5 6.25 % PROG = 1.0 k Ω to 10 kΩ 5.6 7.5 9.4 % TA=-5°C to +55°C 7.5 10 12.5 % 15 20 25 % Automatic Recharge Recharge Voltage Threshold Ratio VRTH / VREG — 94.0 — % VBAT High to Low — 96.5 — % Pass Transistor ON-Resistance ON-Resistance RDSON — 300 — m Ω VDD = 3.75V TJ = 105°C Battery Discharge Current Output Reverse Leakage Current IDISCHARGE — 0.15 2 µA PROG Floating —0.25 2 µA VDD < VBAT —0.15 2 µA VDD < VSTOP — -5.5 -15 µA Charge Complete Status Indicators - STAT1, STAT2, PG Sink Current ISINK —15 25 mA Low Output Voltage VOL —0.4 1 V ISINK = 4 mA Input Leakage Current ILK — 0.01 1 µA High Impedance, 6V on pin PROG Input Charge Impedance Range RPROG 1— 20 k Ω Standy Impedance RPROG 70 — 200 k Ω Minimum Impedance for Standby Thermistor Bias Thermistor Current Source ITHERM 47 50 53 µA 2 k Ω < RTHERM < 50 kΩ Thermistor Comparator Upper Trip Threshold VT1 1.20 1.23 1.26 V VTHERM Low to High Upper Trip Point Hysteresis VT1HYS —-50 — mV Lower Trip Threshold VT2 0.235 0.25 0.265 V VTHERM High to Low Lower Trip Point Hysteresis VT2HYS —50 — mV System Test (LDO) Mode Input High Voltage Level VIH (VDD-0.1) —— V THERM Input Sink Current ISINK 3 6 20 µA Stand-by or system test mode Bypass Capacitance CBAT 1— — µF IOUT < 250 mA 4.7 — — µF IOUT > 250 mA DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise specified, all limits apply for VDD= [VREG(Typ)+0.3V] to 6V, TA=-40°C to 85°C. Typical values are at +25°C, VDD= [VREG(Typ)+1.0V] Parameters Sym Min Typ Max Units Conditions |
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