component
BQ2954SNTR
Public Made by Adomby adom
Texas Instruments Battery Management ICs, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 11d ago |
| viewers | 11d ago |
| bq2954sntr-etched.glb | 11d ago |
| bq2954sntr-etched.step | 11d ago |
| bq2954sntr-hero.glb | 11d ago |
| bq2954sntr-hero.overlay.json | 11d ago |
| bq2954sntr.glb | 11d ago |
| bq2954sntr.kicad_mod | 11d ago |
| bq2954sntr.kicad_sym | 11d ago |
| bq2954sntr.lbr | 11d ago |
| bq2954sntr.step | 11d ago |
| package.json | 11d ago |
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| README.md | 11d ago |
| verification.json | 11d ago |
BQ2954SNTR
Texas Instruments · Battery Management ICs · SOP-16
BQ2954SNTR from Texas Instruments, in a SOP-16. 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 | TM | input | Time-out programming input that sets the maximum charge time (1 to 24 hours) through an external R-C network, with a recommended C of 0.1 µF. |
| 2 | CHG | output | Open-drain charge-active output that is driven low when the battery is removed, during a temperature hold, on a fault, or when charge is done, and sinks at least 5 mA with VOL ≤ VSS + 0.8 V. |
| 3 | BAT | input | Battery voltage sense input, derived from a high-impedance divider across the battery terminals (RB1 + RB2 typically 150 kΩ to 1 MΩ) and rated for 0 to VCC. |
| 4 | VCOMP | input | Voltage loop compensation input that connects to an external R-C network to stabilize the regulated voltage. |
| 5 | ICOMP | input | Current loop compensation input that connects to an external R-C network to stabilize the regulated charge current. |
| 6 | ITERM | input | Three-state input that selects the IFULL and IMIN fast-charge termination thresholds according to Table 4. |
| 7 | SNS | input | Charging current sense input that reads the battery current as the voltage developed across an external sense resistor, with VSNS = 0.250 V at IMAX. |
| 8 | TS | input | Temperature sense input measured differentially against BAT-, using an external resistor-divider and NTC network to set the low and high temperature thresholds. |
| 9 | TPWM | input | Regulation timebase input that uses an external timing capacitor to VSS to set the PWM frequency, typically 100 kHz to 200 kHz. |
| 10 | BTST | output | Battery test output that is driven high when no battery is present to provide a potential at the battery terminal, and sources at least 10 mA at VOH ≥ VCC − 0.8 V. |
| 11 | LCOM | output | Common output for LED1 and LED2 that is high-impedance during initialization so DSEL and CSEL can be read, and sinks at least 30 mA with VOL ≤ VSS + 0.5 V. |
| 12 | VSS | power_in | System ground; all voltages on the device are specified relative to VSS. |
| 13 | VCC | power_in | Supply input at 5.0 V ±10% (4.5 V to 5.5 V recommended operating range, absolute maximum 7.0 V). |
| 14 | MOD | output | Pulse-width modulated push-pull current-switching control output that enables charge current when high, with a maximum duty cycle of 80%. |
| 15 | LED1/CSEL | bidirectional | Charger display status 1 output that also serves as the CSEL input, latched at VCC rise, to select low-side or high-side current sensing. |
| 16 | LED2/DSEL | bidirectional | Charger display status 2 output that also serves as the three-level DSEL input, latched at VCC rise, to select the LED display mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOP-16 |
| Category | Power Supply Chip |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC relative to VSS | VCC | -0.3 | 7 | V | 13 | ||
| DC voltage applied on any pin excluding VCC relative to VSS | VT | -0.3 | 7 | V | 13 | ||
| Operating ambient temperature (commercial) | TOPR | -20 | 70 | °C | Commercial | 13 | |
| Storage temperature | TSTG | -55 | 125 | °C | 13 | ||
| Soldering temperature | TSOLDER | 260 | °C | 10s max. | 13 | ||
| Internal reference voltage tolerance | VREG | -1 | 1 | % | TA = 25°C | 13 | |
| Temperature coefficient tolerance (VREG) | -10 | 10 | % | 13 | |||
| TS maximum threshold (VLTF) tolerance | VLTF | -0.03 | 0.03 | V | Low-temperature fault | 13 | |
| TS hysteresis threshold (VHTF) tolerance | VHTF | -0.03 | 0.03 | V | High-temperature fault | 13 | |
| TS minimum threshold (VTCO) tolerance | VTCO | -0.03 | 0.03 | V | Temperature cutoff | 13 | |
| High cutoff voltage (VHCO) tolerance | VHCO | -0.03 | 0.03 | V | 13 | ||
| Under-voltage threshold at BAT | VMIN | -0.05 | 1.5 | 0.05 | V | 13 | |
| Recharge voltage threshold at BAT | VRECHG | -0.05 | 1.92 | 0.05 | V | 13 | |
| Low cutoff voltage | VLCO | -0.03 | 0.8 | 0.03 | V | 13 | |
| Internal reference voltage | VREG | 2.05 | V | TA = 25°C | 13 | ||
| Temperature coefficient | -0.5 | mV/°C | 13 | ||||
| Current sense at SNS tolerance (IMAX) | VSNS | -10 | 10 | % | IMAX | 13 | |
| Current sense at SNS tolerance (ICOND) | VSNS | -10 | 10 | % | ICOND | 13 | |
| Current sense at SNS (IMAX) | VSNS | 0.25 | V | IMAX | 13 | ||
| Current sense at SNS (ICOND) | VSNS | 0.025 | V | ICOND | 13 | ||
| Supply voltage | VCC | 4.5 | 5 | 5.5 | V | 14 | |
| TS voltage potential | VTEMP | 0 | V | 14 | |||
| BAT voltage potential | VBAT | 0 | V | 14 | |||
| Supply current | ICC | 2 | 4 | mA | Outputs unloaded | 14 | |
| DSEL tri-state open detection | IIZ | -2 | 2 | µA | 14 | ||
| ITERM tri-state open detection | ITERM | -2 | 2 | µA | 14 | ||
| LED1, LED2, BTST source current | IOH | -10 | mA | VOH = VCC - 0.5V | 14 | ||
| MOD source current | IOH | -5 | mA | VOH = VCC - 0.5V | 14 | ||
| LED1, LED2, BTST sink current | IOL | 10 | mA | VOL = VSS + 0.5V | 14 | ||
| MOD sink current | IOL | 5 | mA | VOL = VSS + 0.8V | 14 | ||
| CHG sink current | IOL | 5 | mA | VOL = VSS + 0.8V, Note 3 | 14 | ||
| LCOM sink current | IOL | 30 | mA | VOL = VSS + 0.5V | 14 | ||
| DSEL logic input low source current | IIL | 30 | µA | V = VSS to VSS + 0.3V, Note 2 | 14 | ||
| ITERM logic input low source current | IIL | 70 | µA | V = VSS to VSS + 0.3V | 14 | ||
| DSEL logic input high source current | IIH | -30 | µA | V = VCC - 0.3V to VCC | 14 | ||
| ITERM logic input high source current | IIH | -70 | µA | V = VCC - 0.3V to VCC | 14 | ||
| BAT pin input impedance | RBATZ | 50 | MΩ | 15 | |||
| SNS pin input impedance | RSNSZ | 50 | MΩ | 15 | |||
| TS pin input impedance | RTSZ | 50 | MΩ | 15 | |||
| Soft-programmed pull-up or pull-down resistor value | RPROG1 | 10 | kΩ | DSEL, CSEL | 15 | ||
| Pull-up or pull-down resistor value | RPROG2 | 3 | kΩ | ITERM | 15 | ||
| Charge timer resistor | RMTO | 20 | 480 | kΩ | 15 | ||
| Charge time-out range | tMTO | 1 | 24 | hours | See Figure 10 | 15 | |
| Pre-charge qual test hold-off period | tHO | 300 | 600 | 900 | ms | 15 | |
| PWM regulator frequency range | fPWM | 100 | 200 | kHz | See Equation 7 | 15 | |
| Duty cycle | dPWM | 0 | 80 | % | 15 | ||
| Charge timer capacitor | CMTO | 0.1 | µF | 15 | |||
| PWM capacitor | CPWM | 0.001 | µF | 15 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | 16-Pin DIP Narrow (PN) 16-Pin SOIC Narrow (SN) | 16 |
CAD (KiCad official)
- Symbol:
BQ2954SNTR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
bq2954sntr-etched.step/bq2954sntr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq2954sntr.step/bq2954sntr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
527e2db91cecb526, retrieved 2026-10-31, 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).