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LTC4010CFEPBF Datasheet(PDF) 9 Page - Linear Technology |
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LTC4010CFEPBF Datasheet(HTML) 9 Page - Linear Technology |
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9 / 24 page  LTC4010 4010fb block DiagraM 5 6 11 CHARGER STATE CONTROL LOGIC THERMISTOR INTERFACE A/D CONVERTER BATTERY DETECTOR VOLTAGE REGULATOR UVLO AND SHUTDOWN PWM CHARGE TIMER VOLTAGE REFERENCE INTERNAL VOLTAGE REGULATOR VTEMP 4 CHEM 2 CHRG 1 FAULT 9 10 13 12 14 3 GND VCELL 8 TIMER 7 VCDIV INTVDD 4010 BD BAT SENSE BGATE 16 READY VCC PGND TGATE 15 operaTion (Refer to Figure 1) CHARGE QUALIFICATION SHUTDOWN DC ADAPTER PRESENT NiCd OR NiMH – ∆V VCELL < 1.325V *tMAX IS PROGRAMMED MAXIMUM FAST CHARGE DURATION **OPTIONAL TEMPERATURE LIMITS APPLY 4010 F01 VCELL < 900mV VCELL > 900mV VCELL > 900mV VCELL < 900mV VCELL < 1.22V AT tMAX*/12 OR TIME = tMAX VCELL > 350mV, ADEQUATE VCC, CHARGER ENABLED AND TEMPERATURE OK (OPTIONAL) CHECK BATTERY PRECHARGE** (C/5 FOR tMAX/12) FAST CHARGE** (1C) AUTOMATIC RECHARGE FAULT VCELL > 1.95V OR PWM FAULTS TOP-OFF CHARGE** (C/10) NiMH ∆T/∆t NO DC ADAPTER tMAX/3 NO BATTERY OR VCC < 4.25V Figure 1. LTC4010 State Diagram |
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