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Texas Instruments BQ24052DSQR — Power Management (PMIC / Gate Driver)
Texas Instruments

TI BQ24052DSQR Li-Ion Charger IC, 800 mA, 28 V Input

MPNBQ24052DSQR
Active

Texas Instruments BQ24052DSQR, single-cell Li-Ion/Polymer linear charger IC, 800 mA max charge current, 28 V max input, USB interface, 10-WSON (2x2) package, fault protection.

$0.8115Ref. price · indicative, final on quote
BQ24052DSQR datasheet
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MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

BQ24052DSQR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage4.2V
Voltage28V
Current - chargingConstant - Programmable
Charge current - max800mA
InterfaceUSB
Operating temperature0°C~125°C(TJ)
PackageTape & Reel (TR)
Case10-WFDFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage, Short Circuit
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent

Product details

Single-cell Li-Ion linear charger with USB interface

The Texas Instruments BQ24052DSQR is a single-cell linear charger IC for Lithium Ion/Polymer batteries, designed for space-constrained portable gear. It accepts a USB or unregulated DC input up to 28 V and delivers a programmable constant charge current up to 800 mA. The device integrates over-temperature, over-voltage, and short-circuit fault protection, reducing external component count. The charge current is set via an external resistor — no I2C or GPIO needed.

Charge current and input voltage headroom

Maximum charge current of 800 mA suits single-cell packs up to 4.2 V termination. The 28 V input ceiling covers unregulated wall adapters and USB-C PD sources; a 6.5 V input clamp protects the IC during hot-plug transients. The 10-WSON (2x2) package with exposed pad keeps thermal resistance low — important for linear charging at 800 mA when input-to-battery differential exceeds 1 V.

This part is suitable for both prototyping and volume production without supply-chain disruption.

Frequently asked questions

What is the BQ24052DSQR maximum charge current?

The maximum charge current is 800 mA, programmable via an external resistor. The IC operates as a constant-current/constant-voltage linear charger.

Does the BQ24052DSQR have overvoltage protection?

Yes, the device includes over-voltage protection as part of its integrated fault protection set, along with over-temperature and short-circuit protection.

Can the BQ24052DSQR charge a 4.2 V lithium battery?

Yes, the battery pack voltage is 4.2 V, matching standard single-cell Li-Ion/Polymer termination voltage.