Datasheet LTC3559EUD - Linear Technology IC, BATT CHARGER, W/BUCK REG, 16QFN — Ficha de datos

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Manufacturer: Linear Technology

Description: IC, BATT CHARGER, W/BUCK REG, 16QFN

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Docket:
FEATURES
Battery Charger n Standalone USB Charger n Up to 950mA Charge Current Programmable via Single Resistor n HPWR Input Selects 20% or 100% of Programmed Charge Current n NTC Input for Temperature Qualified Charging n Internal Timer Termination n Bad Battery Detection n CHRG Indicates C/10 or Timeout Buck Regulators n 400mA Output Current n 2.25MHz Constant Frequency Operation n Zero Current in Shutdown n Low Noise Pulse Skip Operation or Power Saving Burst Mode Operation n Low No-Load Quiescent Current: 35A n Available in a Low Profile Thermally Enhanced 16-Lead 3mm Ч 3mm QFN Package
LTC3559/LTC3559-1 Linear USB Battery Charger with Dual Buck Regulators DESCRIPTION
The LTC®3559/LTC3559-1 are USB battery chargers with dual high efficiency buck regulators.

The parts are ideally suited to power single-cell Li-Ion/Polymer based handheld applications needing multiple supply rails. Battery charge current is programmed via the PROG pin and the HPWR pin, with capability up to 950mA at t

Specifications:

• Base Number: 3559
• Battery Charge Voltage: 4.2 V
• Battery IC Case Style: QFN
• Battery Management Function: Charger
• Battery Type: Li-Ion
• Charge Current Max: 950 mA
• Input Voltage: 5.5 V
• Mounting Type: SMD
• Number of Pins: 16
• Number of Series Cells: 1
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Max: 4.2 V
• Package / Case: QFN
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage Range: 4.3 V to 5.5 V

RoHS: Yes