component
TPS3852G18QDRBRQ1
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTPS3852G18QDRBRQ1
Texas Instruments · Supervisor And Reset ICs · SON-8-EP(3x3)
TPS3852G18QDRBRQ1 from Texas Instruments, in a SON-8-EP(3x3). 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 | VDD | power_in | Supply voltage pin with a 1.6 V to 6.5 V recommended operating range, and a 0.1-μF bypass capacitor is recommended for noisy systems. |
| 2 | CWD | passive | Programmable watchdog timeout input: a capacitor of 0.1 nF to 1000 nF to ground sets the window watchdog upper boundary, while a 10-kΩ resistor to VDD or leaving the pin unconnected selects the preset timeouts. |
| 3 | MR | input | Manual reset input: a logical low issues a RESET, the pin is internally pulled up to VDD, and RESET stays low for the fixed reset delay tRST after MR goes high, with a 0 V to 6.5 V pin voltage range. |
| 4 | GND | power_in | Ground pin, which is also internally connected to the thermal pad. |
| 5 | SET1 | input | Logic input where grounding SET1 disables the watchdog timer, with a 0 V to 6.5 V pin voltage range. |
| 6 | WDI | input | Watchdog input where a falling edge must occur between the tWDL(max) and tWDU(min) window boundaries so WDO does not assert; the input is ignored while RESET or WDO are low or the watchdog is disabled, and it cannot be left unconnected when the watchdog is disabled. |
| 7 | WDO | output | Watchdog output that goes low for tRST on a watchdog timeout and only asserts while RESET is high, requiring a 1-kΩ to 100-kΩ pullup to the desired rail with output current limited to 10 mA. |
| 8 | RESET | output | Reset output that goes low when VDD falls below the undervoltage threshold VITN and goes high after the RESET timeout completes, requiring a 1-kΩ to 100-kΩ pullup with pin current limited to 10 mA. |
| 9 | PAD | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SON-8-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
TPS3852G18QDRBRQ1 - Footprint:
Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm - 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps3852g18qdrbrq1-etched.step/tps3852g18qdrbrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3852g18qdrbrq1.step/tps3852g18qdrbrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
2e24daa8b2f6c684, retrieved 2026-10-08, 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).