LT LT1769IFE#PBF

多化学2A-40°C ~ 85°C（TA）

Overview

The LT1769IFE current mode PWM battery charger is a simple, efficient solution to fast charge modern rechargeable batteries including lithium-ion (Li-Ion), nickel-metal-hydride (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 LT1769IFE meets the critical constant-voltage charging requirement for Li-Ion cells.

The LT1769IFE can charge batteries ranging from 1V to 20V. Ground sensing of current is not required and the battery’s negative terminal can be tied directly to ground. A saturating switch running at 200kHz gives high charging efficiency and small inductor size. A blocking diode is not required between the chip and the battery because the chip goes into sleep mode and drains only 3µA when the wall adapter is unplugged.

Features

Tube Package
Battery pack voltage of 20V Max
2 channels
20-TSSOP (0.173, 4.40mm Width) Exposed Pad package

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LT1769IFE#PBF Battery Chargers ICs applications.

• Pallet jacks
• Personnel carriers
• Maintenance shops
• Rental fleets
• Truck dealers
• Floor scrubber
• Material handling
• Man lift
• Boat
• Cellphones