Product Details
The LTC4012-3 is a constant-current/con
The LTC4012-3 features fully adjustable output voltage. For charge management and safety, the IC includes an input P-channel MOSFET ideal diode controller, battery (output) overvoltage protection, reverse charge current protection, PWM soft-start and robust non-overlap control for an all N-channel MOSFET PWM power stage.
The device includes AC adapter input current limiting, which maximizes the charge rate for a fixed input power level. An external sense resistor programs the input current limit, and the ICL status pin indicates reduced charge current as a result of AC adapter current limiting. Ideal diode control at the adaptor input improves charger efficiency.
The CHRG status pin is active during all charging modes, including special indication for low charge current.
VFLOAT VFLOAT Range /ACP Pin
LTC4012 Adj. 2V-28V Yes
LTC4012-1 4.2V 1-4 Li-Ion Cells Yes
LTC4012-2 4.1V 1-4 Li-Ion Cells Yes
LTC4012-3 Adj. 2V-28V No
Applications
IC BATT CHG MULTI-CHEM 20QFN
IC BATT CHG MULTI-CHEM 20QFN
IC BATT CHG MULTI-CHEM 20QFN
IC BATT CHG MULTI-CHEM 20QFN
Charger IC Multi-Chemistry 20-QFN (4x4)
Analog Devices, Inc. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | DigiKey | LIXINC Electronics Co., Limited | Quarktwin Technology Ltd. | |
---|---|---|---|---|---|---|
Product Category | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs |
Product Number | LTC4012CUF-3#PBF | LTC4012CUF-3#PBF | LTC4012CUF-3#PBF | LTC4012CUF-3#PBF-ND | LTC4012CUF-3#PBF | LTC4012CUF-3#PBF |
Product Name | High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control | PMIC - Battery Chargers | Integrated Circuits (ICs) - Power Management (PMIC) - Battery Chargers | PMIC - Battery Chargers | Integrated Circuits | Battery Chargers |
Cell Type | Li-Ion; NiCd; NiMH; Lead Acid | Multi-Chemistry | Multi-Chemistry | Multi-Chemistry | ||
Package Type | QFNL | 20-WFQFN Exposed Pad | Tube | 20-WFQFN Exposed Pad | ||
Pins | 20 | 20 | ||||
Cells | 1 to 18 |