component
BQ24078RGTR
Public Made by Adomby adom
Texas Instruments Battery Management, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownBQ24078RGTR
Texas Instruments · Battery Management · VQFN-16-EP(3x3)
BQ24078RGTR 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 monitoring 10-kΩ thermistor in battery pack to prevent dangerous over-temperature conditions during charging. |
| 2 | BAT | bidirectional | Charger power stage output and battery voltage sense input for positive battery terminal; bypass to VSS with 4.7-μF to 47-μF ceramic capacitor. |
| 3 | BAT | bidirectional | Charger power stage output and battery voltage sense input for positive battery terminal; bypass to VSS with 4.7-μF to 47-μF ceramic capacitor. |
| 4 | CE | input | Charge enable active-low input with internal 285-kΩ pull-down; drive low to enable charging and high to suspend charging with OUT remaining active. |
| 5 | EN2 | input | Input current limit configuration input with internal 285-kΩ pull-down; use with EN1 to select USB compliance mode and input current limit. |
| 6 | EN1 | input | Input current limit configuration input with internal 285-kΩ pull-down; use with EN2 to select USB compliance mode and input current limit. |
| 7 | PGOOD | output | Open-drain power good status indication output that pulls to VSS when valid input source is detected within VBAT+VIN(DT) < VIN < VOVP range. |
| 8 | VSS | power_in | Ground connection; must connect to thermal pad and circuit ground rail at all times as primary ground input for device. |
| 9 | CHG | output | Open-drain charging status indication output that pulls to VSS during battery charging and goes high-impedance when charging is complete or disabled. |
| 10 | OUT | output | System supply output providing regulated power to external load when input is valid; bypass to VSS with 4.7-μF to 47-μF ceramic capacitor. |
| 11 | OUT | output | System supply output providing regulated power to external load when input is valid; bypass to VSS with 4.7-μF to 47-μF ceramic capacitor. |
| 12 | ILIM | input | Adjustable current limit programming input; connect 1100-Ω to 8-kΩ resistor to VSS to program maximum input current when EN2=1 and EN1=0. |
| 13 | IN | power_in | Input power connection from AC adapter or USB port with operating range 4.35 V to 6.6 V; accepts up to 26 V without damage but operation is suspended. |
| 14 | TMR | input | Timer programming input controlling pre-charge and fast-charge safety timers; connect 18-kΩ to 72-kΩ resistor to VSS to program timer duration. |
| 15 | SYSOFF | input | System enable input with internal pull-up to VBAT (~5 MΩ); drive high to disconnect battery from system output and disable charging. |
| 16 | ISET | bidirectional | Fast charge current programming input/output; connect 590-Ω to 8.9-kΩ resistor to VSS to program fast charge current; output voltage monitors charging current. |
| 17 | Thermal Pad | power_in | Exposed thermal pad with internal electrical connection to VSS for IC junction temperature management; connect to circuit board ground plane via matrix. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
BQ24078RGTR - 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:
bq24078rgtr-etched.step/bq24078rgtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq24078rgtr.step/bq24078rgtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
5403169e7534f8c4, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).