Datasheet LT1769CGN - Linear Technology IC, BATT CHARGER, SMD, SSOP28, 1769

Linear Technology LT1769CGN

Part Number: LT1769CGN

Detailed Description

Manufacturer: Linear Technology

Description: IC, BATT CHARGER, SMD, SSOP28, 1769

Docket:
FEATURES
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LT1769 Constant-Current/ Constant-Voltage 2A Battery Charger with Input Current Limiting DESCRIPTIO
The LT®1769 current mode PWM battery charger is a simple, efficient solution to fast charge modern rechargeable batteries including lithium-ion (Li-Ion), nickel-metalhydride (NiMH) and nickel-cadmium (NiCd) that require constant-current and/or constant-voltage charging.

The internal switch is capable of delivering 2A** DC current (3A peak current). Charge current can be programmed by resistors or a DAC to within 5%. With 0.5% reference voltage accuracy, the LT1769 meets the critical constant-voltage charging requirement for Li-Ion cells. A third control loop is provided to regulate the current drawn from the input AC adapter. This allows simultaneous operation of the equipment and battery charging without overloading the adapter. Charge current is reduced to keep the adapter current below specified levels. The LT1769 can charge batteries ranging from 1V to 20V. Ground sensing

Specifications:

Base Number: 1769
Battery Charge Voltage: 20 V
Battery IC Case Style: SSOP
Battery Type: Li-Ion, NiCd, NiMH
Charge Current Max: 2 A
Device Type: Power
Input Voltage: 28 V
Mounting Type: SMD
Number of Outputs: 1
Number of Pins: 28
Operating Temperature Range: 0°C to +125°C
Output Current Max: 3 A
Output Source Current Max: 1.1 mA
Output Voltage Max: 25 V
Package / Case: SSOP
SVHC: No SVHC (15-Dec-2010)
Supply Voltage Range: 8 V to 30 V

RoHS: Yes

Accessories:

Electrolube - HTS35SL
Fischer Elektronik - ICK SMD A 5 SA
Roth Elektronik - RE931-05
STANNOL - 631954