component
SD2054
Public Made by Adomby adom
SHOUDING Battery Management ICs, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSD2054
SHOUDING · Battery Management ICs · SOT-23-5
SD2054 from SHOUDING, in a SOT-23-5. 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 pulled low by an internal N-channel MOSFET while charging, ~20µA weak pull-down when charge is complete, and high impedance when undervoltage lockout is detected. |
| 2 | GND | power_in | Ground. |
| 3 | BAT | power_out | Charge current output to the battery, regulating the final float voltage to 4.2V. |
| 4 | VCC | power_in | Positive input supply of 4.25V to 6.5V, requiring at least a 1µF bypass capacitor; enters shutdown when within 30mV of the BAT voltage, dropping BAT current below 2µA. |
| 5 | PROG | bidirectional | Charge current program, monitor and shutdown pin: a 1% resistor to ground sets IBAT = (VPROG/RPROG)×1000 with 1V at constant-current, floating it enters shutdown at 1.21V (3µA pull-up), and the pin clamps at about 2.4V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SHOUDING |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage | Vcc | 4.25 | 6.5 | V | 6 | ||
| Input current, charge mode | Icc | 300 | 2000 | µA | Charge mode, Rprog=10K | 6 | |
| Input current, standby mode | Icc | 200 | 500 | µA | Standby mode | 6 | |
| Input current, shutdown mode | Icc | 2 | 4 | µA | Shutdown mode (Rprog not connected, Vcc<Vbat or Vcc<Vuv) | 6 | |
| Output control (float) voltage | Vfloat | 4.158 | 4.2 | 4.342 | V | 0℃<TA<85℃, IBAT=40mA | 6 |
| BAT pin current, 10k | Ibat | 93 | 100 | 107 | mA | Rprog=10k, Current mode | 6 |
| BAT pin current, 2k | Ibat | 465 | 500 | 535 | mA | Rprog=2k, Current mode | 6 |
| BAT pin current, standby | Ibat | 0 | -2.5 | -6 | µA | Standby mode, Vbat=4.2V | 6 |
| BAT pin current, shutdown | Ibat | 1 | 2 | µA | Shutdown mode | 6 | |
| BAT pin current, sleep | Ibat | 1 | 2 | µA | Sleep mode, Vcc=0V | 6 | |
| Trickle charge current | Itrikl | 20 | 45 | 70 | mA | Vbat<Vtrikl, Rprog=2k | 6 |
| Trickle charge threshold voltage | Vtrikl | 2.8 | 2.9 | 3 | V | Rprog=10K, Vbat Rising | 6 |
| Trickle charge hysteresis voltage | Vtrhys | 60 | 80 | 110 | mV | Rporg=10k | 6 |
| Undervoltage lockout threshold | Vuv | 3.7 | 3.8 | 3.93 | V | From Vcc low to high | 6 |
| Undervoltage lockout hysteresis | Vuvhys | 150 | 200 | 300 | mV | 6 | |
| Manual shutdown threshold, rising | Vmsd | 1.15 | 1.21 | 1.3 | V | PROG pin rising | 6 |
| Manual shutdown threshold, falling | Vmsd | 0.9 | 1 | 1.1 | V | PROG pin falling | 6 |
| Vcc-Vbat shutdown threshold, rising | Vasd | 70 | 100 | 140 | mV | Vcc from low to high | 6 |
| Vcc-Vbat shutdown threshold, falling | Vasd | 5 | 30 | 50 | mV | Vcc from high to low | 6 |
| C/10 termination threshold current, 10k | Iterm | 0.085 | 0.1 | 0.115 | mA/mA | Rprog=10k | 6 |
| C/10 termination threshold current, 2k | Iterm | 0.085 | 0.1 | 0.115 | mA/mA | Rprog=2k | 6 |
| PROG pin voltage | Vprog | 0.93 | 1 | 1.07 | V | Rprog=10k, Current mode | 6 |
| CHRG pin weak pull-down current | Ichrg | 8 | 20 | 35 | µA | Vchrg=5V | 6 |
| CHRG pin output low voltage | Vchrg | 0.35 | 0.6 | V | Ichrg=5mA | 6 | |
| Recharge battery threshold voltage | ΔVrecg | 100 | 200 | mV | VFLOAT - VRECHRG | 6 | |
| Input voltage | Vcc | -0.3 | 10 | V | VSS-0.3 to VSS+10 | 5 | |
| PROG pin voltage | Vprog | -0.3 | V | VSS-0.3 to Vcc+0.3 | 5 | ||
| BAT pin voltage | Vbat | -0.3 | 7 | V | Vss-0.3 to 7 | 5 | |
| CHRG pin voltage | Vchrg | -0.3 | 10 | V | VSS-0.3 to VSS+10 | 5 | |
| Power dissipation SOT-23-5L | PD | 250 | mW | SOT-23-5L | 5 | ||
| BAT pin current | Ibat | 500 | mA | 5 | |||
| PROG pin current | Iprog | 800 | uA | 5 | |||
| Operating ambient temperature | Topa | -40 | 85 | °C | 5 | ||
| Storage temperature | Tstr | -65 | 125 | °C | 5 |
CAD (KiCad official)
- Symbol:
SD2054 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
sd2054-etched.step/sd2054-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sd2054.step/sd2054.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SHOUDING datasheet (10 pp, sha256
15faa59ad8b468b3, retrieved 2026-10-26, 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, primaryclaude-sonnet-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).