component
SD5510
Public Made by Adomby adom
SHOUDING Battery Management, ESOP-8. 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
markdownSD5510
SHOUDING · Battery Management · ESOP-8
SD5510 from SHOUDING, in a ESOP-8. 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 | VOUT | input | Output-voltage sense pin connected to the boost 5V output, with absolute maximum rating -0.3V to 10V and the boost regulated to 5V ±2.5%. |
| 2 | CHRG | output | Open-drain charge-status output that is pulled low during charging and is high-impedance otherwise, with a 0.6V maximum low level at 5mA and an absolute maximum rating of -0.3V to 10V. |
| 3 | PROG | passive | Charge-current set and monitor pin: a 1% resistor to GND sets the charge current (for example 1.2kΩ gives 580mA and 0.68kΩ gives 1000mA), the pin is held at 1V in constant-current mode, and pulling it above 2.7V puts the charger into shutdown. |
| 4 | STDBY | output | Open-drain charge-complete indicator that is pulled low when the battery is fully charged and is high-impedance otherwise, with a 0.6V maximum low level at 5mA. |
| 5 | VCC | power_in | Charger input supply, typically 5V with an operating range of 4.0V to 10V and an absolute maximum of 12V, to be bypassed with at least one 10µF capacitor. |
| 6 | BAT | bidirectional | Charge-current output to the single-cell Li-ion battery that regulates the float voltage to 4.2V, with a BAT pin current rating of 1200mA and an absolute maximum of 7V, and that also supplies the internal circuitry in boost mode. |
| 7 | GND | power_in | Ground pin, which must be well grounded because the internal zero-potential reference otherwise shifts with switching current and destabilizes operation. |
| 8 | LX | output | Boost-converter internal power-switch output (switch node) that connects to the inductor and Schottky diode, with an absolute maximum range of -2V to 10V and a boost switch current limit of 4 to 4.5A. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SHOUDING |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
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 (VCC) | VCC | 4 | 5 | 10 | V | ● 整个工作温度范围 | 3 |
| BAT 引脚电流 | IBAT | 560 | 580 | 600 | mA | RPROG=1.2K，充电模式；除说明外 Vbat=4.0v | 3 |
| BAT 引脚电流 | IBAT | 990 | 1000 | 1050 | mA | RPROG=0.68K，充电模式；除说明外 Vbat=4.0v | 3 |
| 涓流充电电流 | ITRIKL | 120 | 130 | 140 | mA | VBAT<VTRIKL,RPROG=1.2K ● | 3 |
| 涓流充电门限电压 | VTRIKL | 2.8 | 2.9 | 3 | V | RPROG=1.5K,VBAT上升 | 3 |
| VCC 欠压闭锁门限 | VUV | 3.4 | 3.6 | 3.8 | V | 从 VCC 低至高 ● | 3 |
| C/5 终止电流门限 | ITERM | 150 | 200 | 250 | mA | RPROG=0.68K ● | 3 |
| PROG 引脚电压 | VPROG | 0.9 | 1 | 1.1 | V | RPROG=1.2K，充电模式 ● | 3 |
| 再充电电池门限电压 | ΔVRECHRG | 100 | 150 | 200 | mV | 4 | |
| 终止比较器滤波时间 | tTERM | 0.8 | 1.8 | 4 | ms | IBAT降至 ICHG/5 以下 | 4 |
| 升压输出 5V | VOUT | 4.875 | 5 | 5.125 | V | RL=1k | 4 |
| 电池欠压保护 | VBatLOW | 2.5 | 2.7 | 2.9 | V | Vbat 从 3.6V 下降 ● | 4 |
| 电池欠压保护解锁 | VBatHigh | 2.8 | 3 | 3.2 | V | Vbat 从 2.7V 上升 ● | 4 |
| 振荡频率 | FOSC | 300 | 400 | 500 | KHZ | 4 | |
| 最大占空比 | Dty | 75 | ％ | 4 | |||
| 升压开关管限流 | Ilmt_nmos | 4 | 4.5 | A | 4 | ||
| 充电状态输出低电压 (CHRG) | VCHRG | 0.3 | 0.6 | V | CHRG I =5mA | 3 | |
| 待机状态输出低电平 (STDBY) | VSTDBY | 0.3 | 0.6 | V | STDBY I =5mA | 4 | |
| 输入电源电压 (VCC) 绝对最大 | VCC | -0.3 | 12 | V | 1 | ||
| PROG 引脚电压 绝对最大 | PROG | -0.3 | V | 最大值 VCC+0.3V | 1 | ||
| BAT 引脚电压 绝对最大 | BAT | 0 | 7 | V | 1 | ||
| LX 引脚电压 绝对最大 | LX | -2 | 10 | V | 1 | ||
| VOUT 引脚电压 绝对最大 | VOUT | -0.3 | 10 | V | 1 | ||
| CHRG 引脚电压 绝对最大 | CHRG | -0.3 | 10 | V | 1 | ||
| BAT 引脚电流 绝对最大 | 1200 | mA | 1 | ||||
| 升压最大输出电流 | 1.8 | A | 5V | 1 | |||
| 最大结温 | 145 | ℃ | 1 | ||||
| 工作环境温度范围 | -40 | 85 | ℃ | 1 | |||
| 贮存温度范围 | -65 | 125 | ℃ | 1 | |||
| 引脚温度（焊接） | 260 | ℃ | 焊接时间 10 秒 | 1 | |||
| 限定温度模式中的结温 | TLIM | 120 | ℃ | 4 | |||
| 充电 MOS 管导通电阻 | RON | 450 | mΩ | VCC 与 BAT 之间 | 4 | ||
| 软启动时间 | tss | 20 | us | IBAT=0 至 IBAT=700V/RPROG | 4 | ||
| 升压效率 | η升压 | 90 | ％ | VBAT=3.8V IOUT=500mA | 4 | ||
| 升压效率 | η升压 | 88 | ％ | VBAT=3.8V IOUT=1000mA | 4 | ||
| 升压 NMOS 管内阻 | RON | 120 | mΩ | VLX=0.4V | 4 | ||
| 升压 NMOS 管漏电流 | ILxleak | 1 | uA | VLX=6V | 4 |
CAD (KiCad official)
- Symbol:
SD5510 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
sd5510-etched.step/sd5510-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sd5510.step/sd5510.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SHOUDING datasheet (9 pp, sha256
195f79044bc376ec, retrieved 2026-10-17, 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-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).