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LM3658SD-B

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Texas Instruments Battery Management, WSON-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM3658SD-B

Texas Instruments · Battery Management · WSON-10-EP(3x3)

LM3658SD-B from Texas Instruments, in a WSON-10-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CHG_IN power_in AC wall adapter input pin; the datasheet operating range is 4.5 V to 6.0 V and the absolute maximum is -0.3 V to +6.5 V.
2 USBpwr power_in USB power input pin; the datasheet operating range is 4.35 V to 6.0 V and the absolute maximum is -0.3 V to +6.5 V.
3 GND power_in Power and signal ground pin, the reference for all voltages; the exposed die-attach pad is also connected to GND and should be soldered to a ground thermal land with vias.
4 USB_sel input Pulling this pin low limits the USB charge current to 100 mA, and pulling it high limits the USB charge current to 500 mA.
5 EN_b input Pulling this pin low enables the charger and pulling it high disables the charger, with charging interrupted and timers held.
6 STAT2 output Active-low open-drain charge status output that can drive an LED or GPIO, with IOL specified at up to 10 to 25 mA at 0.25 V.
7 STAT1 output Active-low open-drain charge status output that can drive an LED or GPIO, with IOL specified at up to 10 to 25 mA at 0.25 V.
8 ISET passive A resistor between this pin and GND sets the full-rate charge current on the AC source, with ICHG = KISET/RISET (KISET = 2500 A·Ω typical).
9 TS input Battery temperature sense pin that must connect to the battery pack's temperature output; on the LM3658SD-B, leaving it floating indicates no battery and invokes LDO mode (threshold VTLDO 3.95 V to 4.0 V).
10 BATT power_out Positive battery terminal connection, which the datasheet says needs a 1 µF capacitor placed as close as possible to the pin; in LDO mode it sources up to 1 A.
11 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package WSON-10-EP(3x3)
Category Power Management (PMIC)
Pins 11

CAD (KiCad official)

  • Symbol: LM3658SD-B
  • Footprint: Package_SON:VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm
  • 3D model: WSON-10-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: lm3658sd-b-etched.step / lm3658sd-b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm3658sd-b.step / lm3658sd-b.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 04d58cfc39370f24, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF