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LTC4007-1 Datasheet(PDF) 10 Page - Linear Technology |
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LTC4007-1 Datasheet(HTML) 10 Page - Linear Technology |
10 / 24 page 10 LTC4007-1 40071f OPERATIO Table 1. Truth Table for LTC4007-1 Operation (Supplemental) PRESENT NEXT MAX FROM TO BATTERY C/10 C/10 BATTERY TIMER NUMBER STATE STATE MODE DCIN VOLTAGE LATCH LATCH CURRENT ACP STATE CHG 1 Any MSD Shut Down by Low <BAT 0 OFF LOW Reset HIGH Adapter Voltage 2 MSD SD Charger Shutdown >BAT 0 OFF HIGH Reset HIGH 3 SD, SD Shut Down by >BAT OFF HIGH Reset HIGH* CONDITION, Undervoltage Lockout and CHARGE <UVL 4 SD CONDITION Start Conditioning a >BAT <3.25V/Cell 10% HIGH LOW Depleted Battery Programmed Current 5 CONDITION CONDITION Input Current Limited >BAT <3.25V/Cell <10% HIGH Running LOW Condition Charging Programmed Current (Note 2) 6 CONDITION CONDITION Conditioning a >BAT <3.25V/Cell 10% HIGH Running LOW Depleted Battery Programmed Current 7 CONDITION CONDITION Timer Defeated (Low >BAT <3.25V/Cell 10% HIGH Ignored Forced Battery Conditioning Programmed LOW Still Functional) Current 8 CONDITION SD Charger Paused Due to >BAT <3.25V/Cell OFF HIGH Paused LOW Thermistor Out of Range (Faulted) 9 CONDITION SD Timeout in >BAT <3.25V/Cell OFF HIGH >T/4 HIGH CONDITION Mode (Faulted) 10 CONDITION SD Shut Down by >BAT <3.25V/Cell 0 OFF Forced Reset HIGH ACP/SHDN Pin LOW 11 CONDITION CHARGE Start Normal Charging >BAT >3.25V/Cell Programmed HIGH Running Current 12 CHARGE CHARGE Timer Defeated (Low >BAT >3.25V/Cell Programmed HIGH Ignored Forced Battery Conditioning Current LOW Still Functional) 13 CHARGE CHARGE Top-Off Charging >BAT >3.25V/Cell 0 Programmed HIGH Running LOW Current 14 CHARGE CHARGE C/10 Latch is SET >BAT >3.25V/Cell 1 Programmed HIGH Reset 25 µA when Battery Current Current Is Less than 10% of Programmed Current 15 CHARGE CHARGE Top-Off Charging >BAT >3.25V/Cell 1 Programmed HIGH Running 25 µA Current 16 CHARGE CHARGE Input Current >BAT >3.25V/Cell <Programmed HIGH Limited Charging Current (Note 2) 17 CHARGE SD Charger Paused Due to >BAT >3.25V/Cell OFF HIGH Paused LOW or Thermistor Out of Range 25 µA (Faulted) 18 CHARGE SD Shut Down by >BAT >3.25V/Cell 0 OFF Forced Reset HIGH ACP/SHDN Pin LOW 19 CHARGE SD Terminated by Low- >BAT <3.25V/Cell 0 OFF HIGH >T/4 then HIGH Battery Fault (Note 1) Reset (Faulted) 20 CHARGE SD Terminates After T/4 >BAT VFLOAT 1 OFF HIGH >T/4 then HIGH Reset 21 CHARGE SD Terminates After T >BAT VFLOAT* 0 OFF HIGH >T then HIGH Reset *Most probable condition Note 1: If a depleted battery is inserted while the charger is in this state, the charger must be reset to initiate charging. Note 2: See section on “Adapter Limiting”. Note 3: Blank fields indicate no change, not considered, or other states impact value. Note 4: Battery voltage thresholds do not include comparator hysterisis. Thresholds specify the VLH value. |
Similar Part No. - LTC4007-1_15 |
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Similar Description - LTC4007-1_15 |
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