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LT3650EMSE-4.2#PBF - 

Battery Charger for 1 Cell of Li-Ion, Li-Pol battery, 32V input, 4.2V / 2A charge, MSOP-12

LINEAR TECHNOLOGY LT3650EMSE-4.2#PBF

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Manufacturer Part No:
LT3650EMSE-4.2#PBF
Newark Part No.:
13T8458
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LT3650EMSE-4.2#PBF is a High Voltage 2A Monolithic 2-cell Li-ion Battery Charger operates over a 4.75 to 32V input voltage range (7.5V minimum start-up voltage). The LT3650 provides a constant-current/constant-voltage charge characteristic with maximum charge current externally programmable up to 2A, set using an external current sense resistor. A precondition feature trickle-charges a low voltage battery and bad-battery detection provides a signal and suspends charging if a battery does not respond to preconditioning. It can be configured to terminate charging when charge current falls to C/10 or one-tenth the programmed maximum current. Once charging is terminated, the LT3650 enters a low current (85μA) standby mode. An auto-restart feature starts a new charging cycle if the battery voltage drops 2.5% from the float voltage or if a new battery is inserted into a charging system. The LT3650 contains an user-programmable internal safety timer.
  • Wide input voltage range (4.75 to 32V, 40V absolute maximum)
  • Up to 2A programmable charge current
  • User-selectable termination (C/10 or onboard termination timer)
  • Dynamic charge rate programming/soft-start pin
  • Programmable input current limit
  • 1MHz Fixed frequency
  • Average current mode control
  • 0.5% Float voltage accuracy
  • 5% Charge current accuracy
  • 2.5% C/10 detection accuracy
  • NTC resistor temperature monitor
  • Auto-recharge at 97.5% float voltage
  • Auto-precondition at <70% float voltage
  • Bad battery detection with auto-reset
  • Binary coded open-collector status pins

Applications

Industrial, Portable Devices, Automotive, Computers & Computer Peripherals

Product Information

:
Li-Ion
:
32V
:
4.2V
:
2A
:
MSOP
:
12Pins
:
1
:
-40°C
:
85°C
:
Each
:
-
:
MSL 1 - Unlimited
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