# BQ24232RGTR

**Texas Instruments** · Battery Management · VQFN-16-EP(3x3)

BQ24232RGTR from Texas Instruments, in a VQFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TS | input | External NTC thermistor input for battery pack temperature monitoring with 10 kΩ typical thermistor. |
| 2 | BAT | bidirectional | Charger power stage output and battery voltage sense input, bypass to VSS with 4.7-47 µF ceramic capacitor. |
| 3 | BAT | bidirectional | Charger power stage output and battery voltage sense input, bypass to VSS with 4.7-47 µF ceramic capacitor. |
| 4 | CE | input | Charge enable active-low input; low enables charging, high disables charging, internally pulled down ~285 kΩ. |
| 5 | EN2 | input | Input current limit configuration input; with EN1 selects input current mode per Table 1, internally pulled down ~285 kΩ. |
| 6 | EN1 | input | Input current limit configuration input; with EN2 selects input current mode per Table 1, internally pulled down ~285 kΩ. |
| 7 | PGOOD | tri_state | Open-drain power good output pulling to VSS when valid input detected (VBAT + VIN(DT) < VIN < 10.5 V for bq24232), high-impedance otherwise. |
| 8 | VSS | power_in | Ground pin connected to thermal pad and circuit ground rail. |
| 9 | CHG | tri_state | Open-drain charging status output pulling to VSS during battery charging, high-impedance when charging complete or disabled, flashing at 2 Hz indicates timer fault. |
| 10 | OUT | power_out | System supply output providing regulated 4.4 V when input valid, bypass to VSS with 4.7-47 µF ceramic capacitor. |
| 11 | OUT | power_out | System supply output providing regulated 4.4 V when input valid, bypass to VSS with 4.7-47 µF ceramic capacitor. |
| 12 | ILIM | input | Adjustable input current limit programming input using 3.1-7.8 kΩ resistor to VSS to set maximum input current when EN2=1, EN1=0. |
| 13 | IN | power_in | Input power connection for external DC supply with operating range 4.35-10.2 V for bq24232, bypass with 1-10 µF capacitor to VSS. |
| 14 | TMR | input | Timer programming input; 18-72 kΩ resistor to VSS sets precharge and fast-charge safety timer duration, unconnected defaults to 30-minute precharge and 5-hour fast-charge. |
| 15 | ITERM | input | Termination current programming input (bq24232); 0-15 kΩ resistor to VSS sets termination current as 0-50% of fast-charge current, unconnected selects 10% threshold. |
| 16 | ISET | bidirectional | Fast-charge current programming input using 1.8-36 kΩ resistor to VSS to set charge current 25-500 mA, voltage at ISET reflects actual charge current for monitoring. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |

## CAD (KiCad official)

- Symbol: `BQ24232RGTR`
- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`
- 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `bq24232rgtr-etched.step` / `bq24232rgtr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq24232rgtr.step` / `bq24232rgtr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/bq24232.pdf) (46 pp, sha256 `ba48a6c47944027f`, retrieved 2026-09-23, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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](docs/bq24232rgtr-datasheet.pdf)