LTC1730EGN-4#PBF Pulse Battery Chargers by Analog Devices

Pulse Battery Chargers
Status: Production
Series: LTC1730
RoHS: Compliant
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The LTC1730 is a complete pulse charger for 1-cell lithium-ion batteries. When charging a depleted cell, the internal MOSFET is fully on allowing the current limited input power source to provide charge current to the battery, virtually eliminating heat generation in the charger.As the battery accepts charge and approaches the programmed voltage, the internal MOSFET begins switching off and on with the duty cycle gradually decreasing as the battery approaches a fully charged condition. A programmable timer ends the charge cycle. The end-of-charge condition is indicated at the CHRG pin when the average charge current falls to C/10. Removing the input voltage puts the LTC1730 into a sleep mode, dropping the battery current drain to less than 1µA (maximum).An external sense resistor limits the maximum charge current as a safety precaution against a user connecting a wall adapter with the incorrect or no current limit. The internal MOSFET prevents reverse battery current from flowing if the input voltage is shorted to ground, eliminating the need for a blocking diode.The LTC1730-4 is available in the 16-pin SSOP package and the LTC1730-4.2 is available in the 8-pin SO package.

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Prices starting from US$2.60

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Features

Complete Pulse Charger for 1-Cell Lithium-Ion Batteries
Sense Resistor Limits Maximum Current for Safety
1% Float Voltage Accuracy
End-of-Charge (C/10) Detection Output
Programmable Charge Termination Timer
Internal 0.35Ω NMOS Switch
No Blocking Diode Required
SEL Pin to Set Either 4.1V or 4.2V/Cell (LTC1730-4)
Low-Battery Drain (1µA Max) when Input Supply Is Removed
Battery Temperature Sensing and Charge Qualification
Automatic Trickle Charge for Low-Battery Cell
Automatic Battery Refresh

Last 6 months Inventory & Pricing History

Alternative Descriptions

Lithium-Ion Bat Pulse Chrs w/ | Analog Devices

LTC1730EGN-4#PBF Semiconductors - ICs by Linear Technology

BATT CHARGER OVER CURR PRO 16SSOP

Electronic & Electrical Components>Semiconductors - ICs>Battery Management
Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Battery Type Li-Ion
Input Voltage 12V
Battery Charge Voltage 4.2V
Charge Current Max -
Battery IC Case Style SSOP
No. of Pins 16Pins
No. of Series Cells 1
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1730
Battery Management Function Charge Controller
Operating Temperature Range -40°C to +85°C
Supply Voltage Min 4.5V
Termination Type Surface Mount Device

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC1730EGN-4#PBF?

Additional datasheets, footprints and schematics for LTC1730EGN-4#PBF are listed on our Part Details page. You can also find images and similar parts to LTC1730EGN-4#PBF on this page.

What pricing and inventory information can I view?

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What category does LTC1730EGN-4#PBF fall under?

The LTC1730EGN-4#PBF is listed under Pulse Battery Chargers.

Can I view similar or alternative parts?

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Is the LTC1730EGN-4#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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