component
pm8851d
Public Unreviewedby Ray
STMicroelectronics Isolators - Gate Drivers, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
README
markdownPM8851D
STMicroelectronics · Isolators - Gate Drivers · SOT-23-6
PM8851D from STMicroelectronics, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_in | IC power supply. A voltage between 10 V and 18 V is applied between this pin and GND. Bypass with a 100 nF ceramic capacitor placed close to the pin to absorb gate-charge current spikes. |
| 2 | GND | power_in | Reference voltage / ground connection for the device. |
| 3 | IN | input | Digital input signal for the driver. Internally pulled down to GND with a 100 kΩ (typ.) resistor. Input high/low thresholds are set as a percentage (36-58% VIH, 25-46% VIL) of the voltage on IN_TH. |
| 4 | IN_TH | input | Input threshold reference pin (operating range 2 V to 5.5 V). Voltage applied here sets the VIH and VIL thresholds for the IN pin; typically connected to the logic/MCU supply rail. IN_TH UVLO is ~1.5 V (rising edge). Filter with 10 nF to 100 nF ceramic capacitor. |
| 5 | SNK | output | MOSFET gate-drive sinking output controlled by IN. Sinks up to 1 A (typ., VSNK = VCC/2) to pull the external MOSFET gate to GND. Includes a 100 kΩ (typ.) internal pull-down resistor. When IN is low, SNK pulls to GND; when IN is high, SNK is Hi-Z. |
| 6 | SRC | output | MOSFET gate-drive sourcing output controlled by IN. Sources up to 0.8 A (940 mA typ., VSRC = VCC/2) from VCC to charge the external MOSFET gate. Includes a 100 kΩ (typ.) internal pull-down resistor. When IN is high, SRC drives to VCC; when IN is low, SRC is Hi-Z. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
PM8851DD
CAD (KiCad official)
- Symbol:
PM8851D - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (None pp, sha256
0a829b98ac2403ff, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.