Datasheet LT1505CG - Linear Technology IC, BATT CHARGER, LI ON, 28SSOP — 数据表

Linear Technology LT1505CG

Part Number: LT1505CG

详细说明

Manufacturer: Linear Technology

Description: IC, BATT CHARGER, LI ON, 28SSOP

Docket:
FEATURES
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LT1505 Constant-Current/Voltage High Efficiency Battery Charger DESCRIPTIO
The LT®1505 PWM battery charger controller fast charges multiple battery chemistries including lithium-ion (Li-Ion), nickel-metal-hydride (NiMH) and nickel-cadmium (NiCd) using constant-current or constant-voltage control.

Maximum current can be easily programmed by resistors or a DAC. The constant-voltage output can be selected for 3 or 4 series Li-Ion cells with 0.5% accuracy. A third control loop limits the current drawn from the AC adapter during charging*. This allows simultaneous operation of the equipment and fast battery charging without overloading the AC adapter. The LT1505 can charge batteries ranging from 2.5V to 20V with dropout voltage as low as 0.5V. Synchronous N-channel FETs switching at 200kHz give high efficiency and allow small inductor size. A diode is not required in series with the battery because the charger automatically enters a 10µA sleep mode when the wall adapter is

Specifications:

Base Number: 1505
Battery Charge Voltage: 20 V
Battery IC Case Style: SSOP
Battery Management Function: Charger
Battery Type: Li-Ion / NiCd / NiMH
Charge Current Max: 4 A
Control Interface: SPI
Input Voltage Max: 24 V
Input Voltage: 24 V
Mounting Type: SMD
Number of Pins: 28
Number of Series Cells: 4
Operating Temperature Range: 0°C to +70°C
Output Voltage Max: 20 V
Package / Case: SSOP
SVHC: No SVHC (15-Dec-2010)
Supply Voltage Range: 0 V to 24 V

RoHS: Yes

Accessories:

Roth Elektronik - RE931-05