# SLM6335

**SOLA IC** · Battery Management · DFN3x3-10

SLM6335 from SOLA IC, in a DFN3x3-10. 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 | VIN | power_in | Input supply pin, rated to 28V absolute maximum, with a charging operating voltage of 4.35V to 6.0V. |
| 2 | VGC | passive | Internal driver gate-voltage clamp that requires a 0.1uF capacitor between VGC and VIN, with the datasheet absolute range VIN-7V to VIN+0.3V. |
| 3 | NCHRG | output | Open-drain charge-status output that is pulled low while charging and is high-impedance otherwise, rated to 28V and able to drive a red LED directly from VIN through a current-limiting resistor. |
| 4 | NSTDBY | output | Open-drain charge-complete output that is pulled low when charging is finished and is high-impedance otherwise, rated to 28V. |
| 5 | NCE | input | Enable control where a low level gives normal operation and a high level disables charging, and it can be driven by TTL or CMOS levels. |
| 6 | NTC | input | Battery temperature sense input connected to the battery NTC thermistor, where charging pauses if the pin is below 180mV or above 1.35V and leaving it floating disables temperature monitoring. |
| 7 | BAT | input | Battery voltage sense pin whose leakage current is below 3uA when charging is stopped. |
| 8 | VS | power_in | Battery current sense pin that connects to BAT through a high-precision milliohm sense resistor RS, which sets the fast-charge current as IBAT = 0.0667/RS (A). |
| 9 | GND | power_in | Power ground that must be reliably connected to the bottom thermal pad and to the PCB copper pour. |
| 10 | LX | output | Connection to the internal power MOSFET that supplies the charge current to the external inductor, rated to 14V absolute maximum. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SOLA IC |
| Package | DFN3x3-10 |
| Category | Power Management (PMIC) |
| Pins | 11 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN input voltage (输入电源电压) | VIN | -0.3 |  | 28 | V |  | 1 |
| NCHRG pin voltage (充电状态指示端) | NCHRG | -0.3 |  | 28 | V |  | 1 |
| NSTDBY pin voltage (充电完成指示端) | NSTDBY | -0.3 |  | 28 | V |  | 1 |
| BAT pin voltage | BAT | -0.3 |  | 14 | V |  | 1 |
| VS pin voltage | VS | -0.3 |  | 14 | V |  | 1 |
| LX pin voltage | LX | -0.3 |  | 14 | V |  | 1 |
| Other pins voltage (其它) |  | -0.3 |  | 7 | V |  | 1 |
| Maximum junction temperature (最大结温) |  |  |  | 145 | ℃ |  | 1 |
| Storage temperature range (贮存温度范围) |  | -65 |  | 125 | ℃ |  | 1 |
| Soldering temperature (焊接温度) |  |  |  | 260 | ℃ | 时间10秒 | 1 |
| VIN input supply voltage (输入电源电压) | VIN | 4.35 | 5 | 6 | V |  | 4 |
| Operating ambient temperature range (工作环境温度范围) |  | -40 |  | 85 | ℃ |  | 1 |
| VIN undervoltage lockout threshold (VIN欠压闭锁门限) | VUV | 3.8 | 3.95 | 4.1 | V | 从VIN高至低 | 4 |
| VIN overvoltage lockout threshold (VIN过压闭锁门限) | VOV |  | 6 | 6.3 | V | 从VIN低至高 | 4 |
| Input supply current, standby mode (输入电源电流, 待机模式) | IIN |  | 130 | 260 | uA | 待机模式（充电终止） | 4 |
| Input supply current, shutdown mode (输入电源电流, 关机模式) | IIN |  | 20 | 40 | uA | 关机模式（NCE接高） | 4 |
| Float (regulated) output voltage (稳定输出浮充电压) | VFLOAT | 4.306 | 4.35 | 4.394 | V |  | 4 |
| BAT pin charge current, constant current mode (BAT引脚电流, 电流模式) | IBAT | 1.8 | 2 | 2.2 | A | VBAT=3.8V; RS=33.3mΩ，电流模式 | 4 |
| BAT pin current, standby mode (BAT引脚电流, 待机模式) | IBAT |  | 2.3 | 4.6 | uA | 待机模式，VBAT=4.45 | 4 |
| BAT pin current, stop mode (BAT引脚电流, 停机模式) | IBAT |  | 2.6 | 5.2 | uA | 停机模式（VIN<VBAT或VIN<VUV） | 4 |
| Trickle charge threshold voltage (涓流充电门限电压) | VTRIKL | 2.7 | 2.85 | 3 | V | VBAT上升 | 4 |
| VIN-VBAT lockout threshold voltage, VIN rising (VIN从低至高) | VASD | 150 | 200 | 300 | mV | VIN从低至高 | 5 |
| VIN-VBAT lockout threshold voltage, VIN falling (VIN从高到低) | VASD | 10 | 80 | 130 | mV | VIN从高到低 | 5 |
| Charge termination current threshold (充电终止电流门限) | ITERM | 100 | 200 | 300 | mA | RS=33.3mΩ | 5 |
| NTC pin pull-up current (NTC引脚电流) | INTC | 45 | 50 | 55 | uA |  | 5 |
| Recharge battery threshold voltage (再充电电池门限电压) | ΔVRECHRG | 100 | 150 | 250 | mV |  | 5 |
| Oscillator frequency (振荡频率) | FREQ | 450 | 550 | 650 | kHz |  | 5 |

## CAD (KiCad official)

- Symbol: `SLM6335`
- Footprint: `Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm`
- 3D model: DFN3x3-10 (KiCad packages3D, STEP)
- 3D model files: `slm6335-etched.step` / `slm6335-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `slm6335.step` / `slm6335.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SOLA IC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903109969256448) (11 pp, sha256 `e77cf38879338a9e`, 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](docs/slm6335-datasheet.pdf)