component
BQ24079RGTR
Public Made by Adomby adom
Texas Instruments Battery Management, QFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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| bq24079rgtr-etched.step | 29d ago |
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| bq24079rgtr-hero.overlay.json | 29d ago |
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BQ24079RGTR
Texas Instruments · Battery Management · QFN-16-EP(3x3)
BQ24079RGTR from Texas Instruments, in a QFN-16-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 | TS | input | External NTC thermistor input that monitors a 10 kΩ NTC in the battery pack; if TS is unused, a 10 kΩ fixed resistor from TS to VSS is required to hold a valid voltage level. |
| 2 | BAT | bidirectional | Charger power stage output and battery voltage sense input that connects to the battery positive terminal and must be bypassed to VSS with a 4.7 µF to 47 µF ceramic capacitor. |
| 3 | BAT | bidirectional | Charger power stage output and battery voltage sense input that connects to the battery positive terminal and must be bypassed to VSS with a 4.7 µF to 47 µF ceramic capacitor. |
| 4 | CE | input | Active-low charge enable input where a high level disables battery charging (OUT stays active and battery supplement remains available) and a low level enables the charger; it is internally pulled down with about 285 kΩ and must not be left unconnected. |
| 5 | EN2 | input | Input current limit configuration input that works with EN1 to select the maximum input current and USB compliance mode per Table 7-2; it is internally pulled down with about 285 kΩ and must not be left unconnected. |
| 6 | EN1 | input | Input current limit configuration input that works with EN2 to select the maximum input current and USB compliance mode per Table 7-2; it is internally pulled down with about 285 kΩ and must not be left unconnected. |
| 7 | PGOOD | output | Open-drain power good output that pulls to VSS when a valid input source is detected and is high impedance when the input is outside the specified limits, connected to a logic rail through 1 kΩ to 100 kΩ or used with an LED. |
| 8 | VSS | power_in | Ground pin that must be connected to the thermal pad and the ground rail of the circuit and must be connected to ground at all times. |
| 9 | CHG | output | Open-drain charging status output that pulls to VSS while charging and is high impedance when charging is complete or the charger is disabled, connected to a logic rail through 1 kΩ to 100 kΩ or used with an LED. |
| 10 | OUT | output | System supply output that provides a regulated voltage when the input is below the OVP threshold and above the regulation voltage, is connected to VBAT when the input is out of range except when SYSOFF is high, and must be bypassed to VSS with 4.7 µF to 47 µF ceramic. |
| 11 | OUT | output | System supply output that provides a regulated voltage when the input is below the OVP threshold and above the regulation voltage, is connected to VBAT when the input is out of range except when SYSOFF is high, and must be bypassed to VSS with 4.7 µF to 47 µF ceramic. |
| 12 | ILIM | input | Adjustable current limit programming input where a 1100 Ω to 8 kΩ resistor to VSS sets the maximum input current in EN2=1, EN1=0 mode, and leaving it unconnected disables all charging. |
| 13 | IN | input | Input power connection for the external DC supply with an operating range of 4.35 V to 6.6 V for the BQ24079 per Table 7-1, which can accept up to 26 V without damage but operation is suspended, and it requires a 1 µF to 10 µF bypass capacitor to VSS. |
| 14 | TMR | input | Timer programming input where a 18 kΩ to 72 kΩ resistor to VSS sets the pre-charge and fast-charge safety timers, connecting it to VSS disables all safety timers, and leaving it unconnected selects the default timers. |
| 15 | SYSOFF | input | System enable input where a high level turns off the FET connecting the battery to the system output and also disables charging when an adapter is connected, a low level gives normal operation, and it is internally pulled up to VBAT through about 5 MΩ and must not be left unconnected. |
| 16 | ISET | bidirectional | Fast-charge current programming input/output where a 590 Ω to 8.9 kΩ resistor to VSS sets the fast-charge current, charging is disabled if left unconnected, and its voltage reflects the actual charge current while charging. |
| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | QFN-16-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
BQ24079RGTR - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: QFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
bq24079rgtr-etched.step/bq24079rgtr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq24079rgtr.step/bq24079rgtr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (55 pp, sha256
4fe4e4f9855501f8, retrieved 2026-10-10, tier: manufacturer) - 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).