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BQ24232HARGTR

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Texas Instruments Pre-ordered Chips, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BQ24232HARGTR

Texas Instruments · Pre-ordered Chips · VQFN-16-EP(3x3)

BQ24232HARGTR from Texas Instruments, in a VQFN-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, and must be tied to VSS through a 10-kΩ fixed resistor if the TS function is unused.
2 BAT bidirectional Charger power stage output and battery voltage sense input that connects to the positive battery 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 positive battery 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, internally pulled down with about 285 kΩ, that must not be left unconnected.
5 EN2 input Input current limit configuration input, internally pulled down with about 285 kΩ, that must not be left unconnected and together with EN1 sets the maximum input current and USB compliance mode.
6 EN1 input Input current limit configuration input, internally pulled down with about 285 kΩ, that must not be left unconnected and together with EN2 sets the maximum input current and USB compliance mode.
7 PGOOD output Open-drain power good output that pulls to VSS when a valid input source is detected and is high-impedance otherwise, with a 1-kΩ to 100-kΩ pull-up resistor recommended.
8 VSS power_in Ground pin that must be connected to the thermal pad and the circuit ground rail at all times.
9 CHG output Open-drain charging status output that pulls to VSS while the battery is charging and is high-impedance when charging is complete or the charger is disabled.
10 OUT output System supply output that provides a regulated voltage when the input is within operating range and connects to VBAT when the input is out of range, and must be bypassed to VSS with a 4.7-μF to 47-μF ceramic capacitor.
11 OUT output System supply output that provides a regulated voltage when the input is within operating range and connects to VBAT when the input is out of range, and must be bypassed to VSS with a 4.7-μF to 47-μF ceramic capacitor.
12 ILIM input Adjustable current limit programming input that requires a 3.06-kΩ to 7.8-kΩ resistor to VSS in the EN2 = 1, EN1 = 0 mode, and disables all charging if left unconnected in that mode.
13 IN power_in Input power connection for the AC adapter or USB port with an operating range of 4.35 V to 6.6 V, which can withstand up to 26 V without damage but suspends operation, and requires a 1-μF to 10-μF bypass capacitor to VSS.
14 TMR input Timer programming input that disables the safety timers when tied to VSS, uses an 18-kΩ to 72-kΩ resistor to VSS to set a custom length, and selects the 5-hour fast-charge and 30-minute precharge defaults when left unconnected.
15 ITERM input Termination current programming input that uses a 0-Ω to 15-kΩ resistor to VSS and defaults to a 10% threshold when left unconnected.
16 ISET bidirectional Fast-charge current programming input that uses a 1.8-kΩ to 36-kΩ resistor to VSS, disables charging when left unconnected, and reflects the actual charge current as a voltage 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 VQFN-16-EP(3x3)
Category Interface ICs
Pins 17

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
IN input voltage (with respect to VSS) VI -0.3 28 V 4
OUT voltage (with respect to VSS) -0.3 7 V 4
BAT voltage (with respect to VSS) -0.3 5 V 4
EN1, EN2, CE, TS, ISET, PGOOD, CHG, ILIM, TMR, TD, ITERM (with respect to VSS) -0.3 7 V 4
Input current IN II 600 mA 4
Output current (continuous) OUT IO 1700 mA 4
Output current (continuous) BAT discharge mode IO 1700 mA 4
Output sink current CHG, PGOOD 15 mA 4
Junction temperature TJ -40 150 °C 4
Storage temperature Tstg -65 150 °C 4
Electrostatic discharge, human body model, all pins V(ESD) -1000 1000 V per ANSI/ESDA/JEDEC JS-001 4
Electrostatic discharge, charged device model, all pins V(ESD) -250 250 V per JEDEC JESD22-C101 4
IN voltage VI 4.35 26 V junction temperature -5 C to 125 C 4
IN operating voltage VI 4.35 10.2 V junction temperature -5 C to 125 C 4
Input current, IN pin IIN 500 mA 4
Current, OUT pin IOUT 1500 mA 4
Current, BAT pin (discharging) IBAT 1500 mA 4
Current, BAT pin (charging) ICHG 500 mA 4
Maximum input current programming resistor RILIM 3.1 7.8 kΩ 4
Fast-charge current programming resistor RISET 1.8 36 kΩ 4
Timer programming resistor RTMR 18 72 kΩ 4
Termination programming resistor RITERM 0 15 kΩ 4
Junction temperature (recommended) TJ -5 125 °C 4
Undervoltage lockout UVLO 3.2 3.3 3.4 V VIN: 0 V to 4 V 5
Input power detection threshold VIN(DT) 55 95 152 mV VBAT = 3.6 V, VIN: 3.5 V to 4 V 5
Input overvoltage protection threshold ('232) VOVP 10.2 10.5 10.8 V VIN: 5 V to 11 V 5
OUT pin voltage regulation VO(REG) 4.35 4.5 4.6 V VIN > VOUT + VDO(IN-OUT) 6
Maximum input current IINmax 90 95 100 mA EN1 = LO, EN2 = LO 6
Maximum input current IINmax 450 475 500 mA EN1 = HI, EN2 = LO 6
Maximum input current factor KILIM 1380 1571 1700 AΩ ILIM = 200 mA to 500 mA 6
Programmable input current limit range IINmax 200 500 mA EN2 = HI, EN1 = LO, RILIM = 3.06 kΩ to 7.8 kΩ 6
Input voltage threshold when input current is reduced VIN-DPM 4.3 4.35 4.63 V EN2 = LO, EN1 = X 6
Output short-circuit detection threshold, power-on VO(SC1) 0.8 0.9 1 V VIN > UVLO and VIN > VBAT+VIN(DT) 6
Output short-circuit detection threshold, supplement mode VO(SC2) 200 242 300 mV VIN > UVLO and VIN > VBAT+VIN(DT); VBAT - VOUT > VO(SC2) indicates short circuit 6
Source current for BAT pin short-circuit detection IBAT(SC) 4 8.15 11 mA VBAT = 1.5 V 7
BAT pin short-circuit detection threshold VBAT(SC) 1.6 1.8 2 V VBAT rising 7
Battery charge voltage VBAT(REG) 4.25 4.31 4.35 V 7
Precharge to fast-charge transition threshold VLOWV 2.9 3 3.1 V VIN > UVLO and VIN > VBAT + VIN(DT) 7
Battery fast-charge current range ICHG 25 500 mA VBAT(REG) > VBAT > VLOWV, VIN = 5 V, CE = LO, EN1 = LO, EN2 = HI 7
KISET fast-charge current factor KISET 797 870 975 AΩ 25 mA ≥ ICHG ≥ 500 mA 7
Precharge current factor KIPRECHG 70 88 106 AΩ 2.5 mA ≥ IPRECHG ≥ 30 mA 7
Termination comparator threshold for termination detection ITERM 0.09 0.1 0.11 ×ICHG CE = LO, (EN1,EN2) ≠ (LO,LO), VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop not active 7
Termination comparator threshold for termination detection ITERM 0.027 0.033 0.04 ×ICHG CE = LO, (EN1,EN2) = (LO,LO), VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop not active 7
K factor for termination detection threshold (externally set) KITERM 0.024 0.03 0.036 A CE = LO, (EN1,EN2) ≠ (LO,LO), VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop not active 7
K factor for termination detection threshold (externally set) KITERM 0.009 0.01 0.011 A CE = LO, (EN1,EN2) = (LO,LO), VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop not active 7
Sink current for battery detection IBAT(DET) 5 7.5 10 mA VBAT=2.5 V 7
NTC bias current INTC 72 75 79 μA VIN > UVLO and VIN > VBAT+VIN(DT) 7
High-temperature trip point VHOT 270 300 330 mV Battery charging, VTS falling 7
Low-temperature trip point VCOLD 2000 2100 2200 mV Battery charging, VTS rising 7
Precharge safety timer value tPRECHG 1440 1800 2160 s TMR = floating 8
Charge safety timer value tMAXCHG 14400 18000 21600 s TMR = floating 8
Timer factor KTMR 36 48 60 s/kΩ 8
Junction-to-ambient thermal resistance RθJA 44.5 °C/W 5
Junction-to-case (top) thermal resistance RθJC(top) 54.2 °C/W 5
Junction-to-board thermal resistance RθJB 17.2 °C/W 5
Junction-to-case (bottom) thermal resistance RθJC(bot) 3.8 °C/W 5

CAD (KiCad official)

  • Symbol: BQ24232HARGTR
  • 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: bq24232hargtr-etched.step / bq24232hargtr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bq24232hargtr.step / bq24232hargtr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 fd8e61c0308962e4, retrieved 2026-10-28, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF