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GN4054B

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GN Semic Battery Management, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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GN4054B

GN Semic · Battery Management · SOT23-5

GN4054B from GN Semic, in a SOT23-5. 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 CHRG output Open-drain charge status output that an internal N-channel MOSFET pulls low during charging, turns off when the charge cycle ends, and forces to high impedance when undervoltage lockout is detected.
2 GND power_in Ground reference pin.
3 BAT power_out Charge current output to the battery that regulates the final float voltage to 4.2 V through a precision internal resistor divider, which is disconnected in shutdown mode.
4 VCC power_in Positive input supply that powers the charger, stated as 4.3 V to 6 V in the pin description and to be bypassed with a 0.1 to 1 uF capacitor, with the device entering shutdown and battery drain falling below 2 uA when VCC drops to within 30 mV of the BAT pin voltage.
5 PROG passive Charge current set, monitor, and shutdown pin where a 1% resistor to GND sets the charge current via Ibat = 1000/Rprog, the pin is held at 1 V in constant-current mode, and pulling it above the 1 V shutdown threshold stops charging.

Key specifications

Parameter Value
Manufacturer GN Semic
Package SOT23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
输入电源电压 (input supply voltage) VCC 4.5 5 6 V 输入电源电压 4
输入电源电流 charge mode ICC 160 500 uA 充电模式，Rprog=10K 4
输入电源电流 standby (charge terminated) ICC 50 150 uA 待机模式（充电终止） 4
输入电源电流 shutdown ICC 50 150 uA 停机模式 4
输入电源电流 VCC<VBAT or VCC<VUV ICC 50 150 uA VCC<Bbat 或 VCC<Vuv 4
输出浮充电压 (float voltage) VFLOAL 4.13 4.2 4.26 V 4
BAT 引脚电流 constant current mode IBAT 85 100 115 mA RPROG=10K，电流模式 4
BAT 引脚电流 constant current mode IBAT 425 500 575 mA RPROG=2K，电流模式 4
BAT 引脚电流 standby IBAT 0 -2.5 -6 uA 待机模式，Vbat=4.2V 4
BAT 引脚电流 shutdown (RPROG not connected) IBAT -2 1 2 uA 停机模式（RPROG 未连接） 4
BAT 引脚电流 sleep mode IBAT -1 -2 uA 睡眠模式，VCC=0 4
涓流充电电流 (trickle charge current) ITRIKL 85 100 115 mA VBAT<VTRIKL，Rprog=2K 4
涓流充电门限电压 (trickle threshold) VTRIKL 2.7 2.85 3 V RPROG=10K，Vbat 上升 4
涓流充电迟滞电压 (trickle hysteresis) VTRHYS 60 150 200 mV RPROG=10K 4
VCC 欠压闭锁门限 (UVLO threshold) VUV 3.7 3.8 3.99 V 从 VCC 低至高 4
VCC 欠压闭锁迟滞 (UVLO hysteresis) VUVHYS 150 250 300 mV 4
手动停机门限电压 (manual shutdown threshold, rising) VMSD 0.96 1.05 1.1 V PROG 引脚电平上升 4
手动停机门限电压 (manual shutdown threshold, falling) VMSD 0.9 1 1.1 V PROG 引脚电平下降 4
闭锁门限电压 (ASD threshold, VCC low to high) VASD 70 120 180 mV VCC 从低到高 4
闭锁门限电压 (ASD threshold, VCC high to low) VASD 5 40 120 mV VCC 从高到低 4
C/10 终止电流门限 (termination current) ITERM 0.085 0.1 0.115 mA RPROG=10K 4
PROG 引脚电压 (PROG pin voltage) VPROG 0.9 1 1.08 V RPROG=10K，电流模式 4
引脚输出低电压 (CHRG output low voltage) VCHRG 0.1 0.35 0.6 V ICHRG=5mA 4
再充电电池门限电压 (recharge threshold) ΔVRECHRG 100 120 200 mV VFLOAT-VRECHRG 4
限定温度模式中的结温 (junction temperature limit) TLIM 120 ℃ 4
功率 FET 导通电阻 (power FET on-resistance) RON 1700 mΩ 4
软启动时间 (soft-start time) Tss 100 us IBAT=0 至 Ibat=1000/Rprog 4
再充电比较器滤波时间 (recharge comparator filter time) tRECHARGE 0.75 2 4 ms VBAT 高至低 4
终止比较器滤波时间 (termination comparator filter time) tTERM 0.8 1.8 4 ms IBAT 降至 Ichg/10 以下 4
PROG 引脚上拉电流 (PROG pull-up current) IPROG 3 uA 4
输入电源电压 (input supply voltage, absolute maximum table) 4.5 6 V 输入电源电压 3
PROG pin voltage PROG -0.3 V 上限为 VCC+0.3V 3
BAT pin voltage BAT -0.3 7 V 3
CHRG pin voltage CHRG -0.3 7 V 3
BAT pin current 500 mA 3
PROG pin current 800 uA 3
最大结温 (maximum junction temperature) 145 ℃ 3
工作环境温度范围 (operating ambient temperature) -20 85 ℃ 3
贮存温度范围 (storage temperature) -65 125 ℃ 3
引脚温度 (lead temperature, soldering) 260 ℃ 焊接时间 10s 3
VCC 工作电压范围 (VCC range) VCC 4.3 6 V VCC 的变化范围 2

CAD (KiCad official)

  • Symbol: GN4054B
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: gn4054b-etched.step / gn4054b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gn4054b.step / gn4054b.glb are the bare package body.

Provenance

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

  • Datasheet: GN Semic datasheet (5 pp, sha256 e6c9bffbcec538f4, retrieved 2026-10-18, tier: lcsc)
  • 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: 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