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HT6908ARTZ

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by Ray

HTCSEMI Synchronous Rectifier Controllers, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)ht6908artz
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Contents

README

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HT6908ARTZ

HTCSEMI · Synchronous Rectifier Controllers · SOT-23-6

HT6908ARTZ 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 HVC power_in High-voltage linear regulator input. Accepts up to +180 V (abs max) referenced to VSS and supplies the internal VDD charge path (70 mA current source, clamped to 9 V when V_HVC > 9.7 V). Can be tied to VD or VSS depending on high-side/low-side configuration.
2 VSS power_in Device ground. Also used as the MOSFET source sense reference for the VD forward-voltage measurement.
3 SLEW input Programming pin for turn-on signal slew-rate detection. An external resistor R_SLEW (e.g., 400 kΩ) to VSS sets the slew-rate detection timer T_SLEW ≈ R_SLEW × 90 ns / 400 kΩ, which prevents false turn-on from ringing during DCM and quasi-resonant operation.
4 VDD power_out Linear regulator output and IC supply. Operating range 4 V to 13 V (recommended); regulated to ~5 V when charged from VD (V_HVC < 4.7 V) or ~9 V when charged from HVC. Requires an external hold-up capacitor (VDD UVLO rising 3.75 V typ).
5 VG output Gate drive output for the external synchronous-rectifier MOSFET. Drives standard and logic-level SR MOSFETs with ~0.5 A source / 3 A sink capability, V_G-H ≥ 4.9 V, pull-down impedance ~1 Ω. Turn-on/turn-off delays ~30 ns / 25 ns.
6 VD input MOSFET drain voltage sense. Measures V_DS of the external SR MOSFET (up to +150 V recommended, +180 V abs max relative to VSS) to control gate on/off: turn-on threshold V_DS = -86 mV typ, turn-off threshold VSS-VD = 3 mV typ, forward regulation ~40 mV.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-23-6
Category Power Management (PMIC)
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • HT6908ARTZ
  • HT6908ARTZARDZ

CAD (KiCad official)

  • Symbol: HT6908ARTZ
  • 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 (13 pp, sha256 17cc1da9c3621e09, 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).

Datasheet PDF