Datasheet LTC4081EDD - Linear Technology IC, BATT CHARGER, LOW POWER, 10DFN — Datenblatt

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Manufacturer: Linear Technology

Description: IC, BATT CHARGER, LOW POWER, 10DFN

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FEATURES
Battery Charger: Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charge Rate Without Risk of Overheating Internal 4.5 Hour Safety Timer for Termination Charge Current Programmable Up to 500mA with 5% Accuracy NTC Thermistor Input for Temperature Qualified Charging C/10 Charge Current Detection Output 5A Supply Current in Shutdown Mode Switching Regulator: High Efficiency Synchronous Buck Converter 300mA Output Current (Constant-Frequency Mode) 2.7V to 4.5V Input Range (Powered from BAT Pin) 0.8V to V BAT Output Range MODE Pin Selects Fixed (2.25MHz) Constant-Frequency PWM Mode or Low ICC (23A) Burst Mode® Operation 2A BAT Current in Shutdown Mode 10-lead, low profile (0.75 mm) 3mm Ч 3mm DFN package
LTC4081 500mA Li-Ion Charger with NTC Input and 300mA Synchronous Buck DESCRIPTIO
The LTC4081 is a complete constant-current/constantvoltage linear battery charger for a single-cell 4.2V lithium-ion/polymer battery with an integrated 300mA

Specifications:

• Base Number: 4081
• Battery Charge Voltage: 3.8 V
• Battery IC Case Style: DFN
• Battery Management Function: Charger
• Battery Type: Li-Ion / Li-Polymer
• Charge Current Max: 525 mA
• Input Voltage Max: 4.5 V
• Input Voltage: 5.5 V
• Mounting Type: SMD
• Number of Pins: 10
• Number of Series Cells: 1
• Operating Temperature Range: 0°C to +70°C
• Output Voltage Max: 4.24 V
• Package / Case: DFN
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage Range: 3.75 V to 5.5 V

RoHS: Yes