component
CAT823TTDI-GT3
Public Made by Adomby adom
onsemi Supervisor and Reset ICs, TSOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.mdadded+48@@ -0,0 +1,48 @@+# CAT823TTDI-GT3++**onsemi** · Supervisor and Reset ICs · TSOT-23-5++CAT823TTDI-GT3 from onsemi, in a TSOT-23-5. 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 | RESET | output | CMOS push-pull active-LOW reset output (RESET, bar). Driven low whenever VCC < VRST (3.08 V typ for the T version), while MR is held low, or on a watchdog timeout, then held low for tRP (200 ms typ, 400 ms max) after the fault clears. VOL <= 0.3 V at 1.2 mA sink; VOH >= 0.8 x VCC at 30 uA source. |+| 2 | GND | power_in | Ground / device return. 0 V reference for all logic thresholds and outputs. |+| 3 | MR | input | Manual Reset input (MR, active low). Internally pulled high by a 52 kOhm (35-75 kOhm) resistor and designed to be driven low by a pushbutton, open-drain, or CMOS output. Pulling MR low asserts RESET; on release the reset stays active for tRP (140 ms min). VIL <= 0.3 x VCC, VIH >= 0.7 x VCC, minimum valid pulse width tPB = 1 us, noise immunity 100 ns. |+| 4 | WDI | input | Watchdog Timer Input. Must see a low-to-high or high-to-low transition within tWD (1.6 s typ, 3.2 s max) or RESET is pulled active for tRP. Can be disabled by leaving open or tri-stating (internally serviced within the timeout period). VIL <= 0.3 x VCC, VIH >= 0.7 x VCC, min pulse width 50 ns. |+| 5 | VCC | power_in | Supply voltage input. Recommended operating range 1.2 to 5.5 V (over -40 to +85 C); absolute maximum 6 V. Typical supply current ICC = 4 uA (12 uA max) for the CAT823 T version. Monitored against the VRST threshold (3.08 V typ for T suffix) to generate RESET. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | TSOT-23-5 |+| Category | PMIC |+| Pins | 5 |++## Ordering variants++- `CAT823TTDI-GT3TTDI-GT3`+- `CAT823TTDI-GT3STDI-GT3`+- `CAT823TTDI-GT3RTDI-GT3`+- `CAT823TTDI-GT3ZTDI-GT3`+- `CAT823TTDI-GT3YTDI-GT3`++## CAD (KiCad official)++- Symbol: `CAT823TTDI-GT3`+- Footprint: `Package_TO_SOT_SMD:SOT-23-5`+- 3D model: TSOT-23-5 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/cat823ttdi-gt3-d.pdf) (11 pp, sha256 `c3276e3d139e9445`, retrieved 2026-08-17, tier: manufacturer)+- **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).++[Datasheet PDF](docs/cat823ttdi-gt3-datasheet.pdf)
page.jsonadded+34@@ -0,0 +1,34 @@+{+ "slug": "cat823ttdi-gt3",+ "version": "0.1.0",+ "type": "component",+ "description": "onsemi Supervisor and Reset ICs, TSOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "pmic",+ "cat823ttdi-gt3"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "cat823ttdi-gt3.kicad_sym",+ "cat823ttdi-gt3.kicad_mod",+ "cat823ttdi-gt3.glb",+ "cat823ttdi-gt3.step",+ "cat823ttdi-gt3.lbr",+ "docs/hero.png",+ "docs/cat823ttdi-gt3-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "visibility": "public",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}