LTC4012IUF-3#PBF Switching Battery Chargers by Analog Devices

Status: Production
Series: LTC4012-3
RoHS: Compliant
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The LTC4012-3 is a constant-current/constant-voltage battery charger controller. It uses a synchronous quasiconstant frequency PWM control architecture that will not generate audible noise with ceramic bulk capacitors. Charge current is set by external resistors and can be monitored as an output voltage across the programming resistor. With no built-in termination, the LTC4012-3 charges a wide range of batteries under external control.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

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Features

General Purpose Battery Charger Controller
Efficient 550kHz Synchronous Buck PWM Topology
±0.5% Output Float Voltage Accuracy
Programmable Charge Current: 4% Accuracy
Programmable AC Adapter Current Limit: 3% Accuracy
No Audible Noise with Ceramic Capacitors
INFET Low Loss Ideal Diode PowerPath™ Control
Wide Input Voltage Range: 6V to 28V
Wide Output Voltage Range: 2V to 28V
Indicator Outputs for Charging, C/10 Current Detection and Input Current Limiting
Analog Charge Current Monitor
Micropower Shutdown
20-Pin 4mm × 4mm × 0.75mm QFN Package

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Alternative Descriptions

Hi Eff, Multi-Chemistry Bat Ch | Analog Devices


LTC4012IUF-3#PBF Semiconductors - ICs by Linear Technology

IC BATTERY CHARGER 20QFN

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Battery Type Li-Ion Li-Pol
Input Voltage 28V
Battery Charge Voltage 4.3V
Charge Current Max 4A
Battery IC Case Style QFN
No. of Pins 20Pins
No. of Series Cells 4
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Range -40°C to +125°C
Supply Voltage Max 28V
Supply Voltage Min 6V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC4012IUF-3#PBF?

Additional datasheets, footprints and schematics for LTC4012IUF-3#PBF are listed on our Part Details page. You can also find images and similar parts to LTC4012IUF-3#PBF on this page.

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What category does LTC4012IUF-3#PBF fall under?

The LTC4012IUF-3#PBF is listed under Switching Battery Chargers.

Can I view similar or alternative parts?

You can view similar parts to LTC4012IUF-3#PBF when available in the Switching Battery Chargers range under the specifications section at the bottom of the details page.

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Is the LTC4012IUF-3#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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Authorised distributors including Analog Devices have stock available or on a lead time for LTC4012IUF-3#PBF.

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