component
LM3658SD-B
Public Made by Adomby adom
Texas Instruments Battery Management, WSON-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM3658SD-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm3658sd-b.step/lm3658sd-b.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).