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LINEAR TECHNOLOGY  LT1505CG#PBF  Battery Charger for 4 Cells of Li-Ion, Li-Pol, NiCd, NiMH battery, 24V input, 4 A charge, SSOP-28

LINEAR TECHNOLOGY LT1505CG#PBF
Manufacturer Part No:
LT1505CG#PBF
Order Code:
1648005
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT1505CG#PBF is a PWM constant-current/voltage high efficiency Battery Charger that charges fast multiple battery chemistries including Li-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 unplugged.
  • Simple charging of Li-ion, NiMH and NiCd batteries
  • Very high efficiency up to 97%
  • Precision 0.5% charging voltage accuracy
  • 5% Charging current accuracy
  • Charging current programmed by resistor or DAC
  • AC adapter current limit maximizes charging rate
  • Flag indicates Li-ion charge completion
  • Auto shutdown with adapter removal
  • Only 10µA battery drain when idle
  • Synchronizable up to 280kHz

Product Information

Battery Type:
Li-Ion, NiCd, NiMH
Input Voltage:
24V
Battery Charge Voltage:
20V
Charge Current Max:
4A
Battery IC Case Style:
SSOP
No. of Pins:
28Pins
No. of Series Cells:
4
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Computers & Computer Peripherals
  • Portable Devices
  • Consumer Electronics
  • Power Management

Legislation and Environmental

Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0002

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