BQ25883RGER

@@ -0,0 +1,64 @@+# BQ25883RGER++**Texas Instruments** · Battery Management · VQFN-24-EP(4x4)++BQ25883RGER from Texas Instruments, in a VQFN-24-EP(4x4). 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 | D- | bidirectional | Negative USB data line. Used for USB host/charging port detection (BC1.2), including data contact detection (DCD) and secondary detection. |+| 2 | STAT | output | Open drain charge status indicator. Connect to pull-up rail via 10-kΩ resistor. LOW = charge in progress; HIGH = charge complete or disabled; blinks at 1Hz on fault. Can be disabled via STAT_DIS. |+| 3 | /CE | input | Active low charge enable pin. Battery charging is enabled when EN_CHG bit = 1 and /CE pin is LOW. Internally pulled low with 900-kΩ resistor. |+| 4 | SDA | bidirectional | I2C interface data. Connect SDA to the pull-up rail through a 10-kΩ resistor. |+| 5 | SCL | input | I2C interface clock. Connect SCL to the pull-up rail through a 10-kΩ resistor. |+| 6 | /INT | output | Open drain active low interrupt output. Connect to pull-up rail via 10-kΩ resistor. Sends 256-µs active-low pulse to the host to report charger status and fault events. |+| 7 | TS | input | Temperature qualification voltage. Connect a NTC thermistor (recommend 103AT-2). Program temperature window with a resistor divider from REGN to TS to GND; charge suspends when TS is out of range. |+| 8 | ILIM | input | Input current limit (IINDPM) programming. IINDPM loop regulates ILIM pin voltage at 0.8V. Resistor to GND sets IINMAX = KILIM / RILIM. Short to GND for maximum limit; do not float. Cannot set below 500mA. |+| 9 | /PG | output | Open drain active low power good indicator. Connect to pull-up rail via 10-kΩ resistor. LOW indicates a good input source when input voltage is within VVBUS_OP (3.9V) and can provide more than IPOORSRC (30 mA). |+| 10 | NC | unconnected | No connect. Leave floating or tie to ground. |+| 11 | REGN | power_out | Gate drive supply. Bias supply for internal MOSFET drivers and IC. Bypass REGN to GND with a 4.7-µF ceramic capacitor. REGN current limit is 50 mA. |+| 12 | BTST | power_in | PWM high-side driver supply. Internally BTST is connected to the cathode of the boot-strap diode. Connect a 47-nF bootstrap capacitor from SW to BTST. |+| 13 | BAT | power_in | Battery power connection. Connect minimum recommended 10-µF capacitance (after derating) closely to BAT and GND. |+| 14 | BAT | power_in | Battery power connection. Connect minimum recommended 10-µF capacitance (after derating) closely to BAT and GND. |+| 15 | SYS | power_out | System connection. Internal BATFET connects SYS to BAT. When battery falls below minimum system voltage, the switch-mode converter keeps SYS above the minimum. Connect 2x22-µF capacitance (after derating) close to SYS and PGND. |+| 16 | SYS | power_out | System connection. Internal BATFET connects SYS to BAT. When battery falls below minimum system voltage, the switch-mode converter keeps SYS above the minimum. Connect 2x22-µF capacitance (after derating) close to SYS and PGND. |+| 17 | SW | power_out | Inductor connection. Connect to the switched side of the external inductor. |+| 18 | SW | power_out | Inductor connection. Connect to the switched side of the external inductor. |+| 19 | GND | power_in | Ground return. |+| 20 | GND | power_in | Ground return. |+| 21 | PMID | power_in | Blocking MOSFET connection. Total low-ESR capacitance on VBUS and PMID (after derating) is 10 µF; at least 1-µF at VBUS with remainder (typically 10 µF) at PMID. |+| 22 | PMID | power_in | Blocking MOSFET connection. Total low-ESR capacitance on VBUS and PMID (after derating) is 10 µF; at least 1-µF at VBUS with remainder (typically 10 µF) at PMID. |+| 23 | VBUS | power_in | Input supply. VBUS is connected to the external DC supply (3.9-6.2 V operating). Bypass VBUS to GND with at least 1-µF ceramic capacitor placed close to the IC. |+| 24 | D+ | bidirectional | Positive USB data line. Used for USB host/charging port detection (BC1.2), including data contact detection (DCD) and secondary detection. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-24-EP(4x4) |+| Category | PMIC |+| Pins | 24 |++## Ordering variants++- `BQ25883RGER`++## CAD (KiCad official)++- Symbol: `BQ25883RGER`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: VQFN-24-EP(4x4) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/bq25883rger.pdf) (86 pp, sha256 `d65790066f0d6360`, retrieved 2026-08-17, tier: manufacturer)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/bq25883rger-datasheet.pdf)

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