component
ht3808g01rtz
Public Unreviewedby Ray
HTCSEMI Supervisor and Reset ICs, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownHT3808G01RTZ
HTCSEMI · Supervisor and Reset ICs · SOT-23-6
HT3808G01RTZ from HTCSEMI, 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 | RESET | output | Open-drain active-low RESET output. Driven to a low-impedance state when SENSE is below VIT (0.405V nominal for the G01 variant) or MR is low. Remains asserted for the programmed reset delay (tD) after both SENSE rises above VIT+VHYS and MR returns high. Requires an external pull-up resistor of 10kΩ to 1MΩ; may be pulled up to a voltage higher than VDD (up to 6.5V). Undefined below VDD ≈ 0.8V. IRESET max = 5 mA. |
| 2 | GND | power_in | Device ground reference. |
| 3 | MR | input | Active-low manual reset input. Driving MR low (VIL ≤ 0.3·VDD) asserts RESET. Internally tied to VDD through a 90kΩ (typ) pull-up so the pin may be left unconnected if unused. VIH ≥ 0.7·VDD; propagation delay MR→RESET ≈ 150ns. |
| 4 | CT | passive | Reset delay programming pin. Leaving CT open gives a fixed ~20ms delay; tying CT to VDD through a 40kΩ-200kΩ resistor gives a ~300ms delay; connecting a ground-referenced capacitor ≥100pF gives a user-programmable delay from 1.25ms to 10s per CT(nF) = [tD(s) − 0.5×10⁻³] × 175. Charged by an on-chip 220nA current source to 1.23V. Use a low-leakage (ceramic) capacitor. |
| 5 | SENSE | input | Voltage-monitor input. RESET is asserted when V(SENSE) drops below VIT (0.405V nominal for HT3808G01; use an external divider R1+R2 = 4MΩ on the SENSE node to program a higher threshold: VIT' = (1 + R1/R2)·0.405V). Built-in hysteresis (VHYS ≈ 3%·VIT for G01). Recommend 1nF-10nF bypass to reduce sensitivity to transients. ISENSE = ±25nA max (G01) at VSENSE = VIT. |
| 6 | VDD | power_in | Supply voltage input, 1.8V to 6.5V operating range (absolute max −0.3V to +7.0V). Typical quiescent current 2.4µA at 3.3V. Place a 0.1µF ceramic bypass capacitor close to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTCSEMI |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
Ordering variants
HT3808G01RTZHT3808G01RTZRDZ
CAD (KiCad official)
- Symbol:
HT3808G01RTZ - 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: HTCSEMI datasheet (None pp, sha256
61ab57090a05171e, 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).