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PT5634A
Public Made by Adomby adom
PTC(Princeton Tech) AC-DC Controllers And Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownPT5634A
PTC(Princeton Tech) · AC-DC Controllers And Regulators · SOP-8
PT5634A from PTC(Princeton Tech), in a SOP-8. 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 | INV | input | Error amplifier inverting input that senses the PFC output voltage through a divider, with a 2.5V reference; pulling it below 0.2V latches the IC and turns off GD. |
| 2 | COMP | output | Error amplifier output that forms an integrator with INV; the output clamps the multiplier and latches GD above 27μA of COMP current in overvoltage protection. |
| 3 | MULT | input | Multiplier input that senses the rectified mains voltage through an external divider, with a specified input range of 0 to 2.5V (recommended 0 to 3.5V). |
| 4 | CS | input | Current sense input that resets GD when its voltage exceeds the multiplier output, with a per-cycle current limit threshold of 1.08V typical and 200ns typical leading-edge blanking. |
| 5 | ZCD | input | Zero-current detection input that sets GD when the inductor current falls to zero, with a falling threshold of 0.7V typical and an absolute maximum input voltage of 7.5V. |
| 6 | GND | power_in | System ground; all voltages in the datasheet are referenced to this pin. |
| 7 | GD | output | Gate driver output for the power MOSFET, with a clamp of 13.5V typical at VCC=20V and a maximum output current of 400mA. |
| 8 | VCC | power_in | IC supply that turns on at 12.5V and turns off at 10V under-voltage lockout, with an internal clamp of 25V typical and a recommended operating range of 14V to 22V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PTC(Princeton Tech) |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| IC supply voltage | VCC | 25 | V | 6 | |||
| INV input voltage | VINV | -0.3 | 7 | V | 6 | ||
| COMP input voltage | VCOMP | -0.3 | 7 | V | 6 | ||
| MULT input voltage | VMULT | -0.3 | 7 | V | 6 | ||
| CS input voltage | VCS | -0.3 | 7 | V | 6 | ||
| ZCD input voltage | VZCD | -0.3 | 7.5 | V | 6 | ||
| ZCD output current | IZCD | -3 | 3 | mA | 6 | ||
| GD driver maximum output voltage | VGD | -0.3 | V | max printed as VCC+0.3 | 6 | ||
| GD maximum output current | IOMAX | -400 | 400 | mA | 6 | ||
| Operating temperature | Topr | -40 | 125 | ℃ | 6 | ||
| Junction temperature | Tj | 125 | ℃ | 6 | |||
| Storage temperature | Tstg | -40 | 150 | ℃ | 6 | ||
| IC supply voltage | VCC | 14 | 22 | V | 6 | ||
| MULT pin voltage | VMULT | 0 | 3.5 | V | 6 | ||
| ZCD pin current | IZCD | -2 | 2 | mA | 6 | ||
| VCC turn-on threshold (UVLO) | VCCUV+ | 11.5 | 12.5 | 13.5 | V | 7 | |
| VCC turn-off threshold (UVLO) | VCCUV- | 9 | 10 | 11 | V | 7 | |
| VCC start-up current | IQCCUV | 30 | 70 | μA | VCC=VCCUV+-0.2V | 7 | |
| VCC quiescent current in OVP mode | IQCCOVP | 0.9 | 1.2 | mA | OVP | 7 | |
| VCC quiescent current in enable-control (shutdown) mode | IQCCSD | 0.9 | 1.2 | mA | VZCD<0.2V | 7 | |
| VCC operating current | ICCHF | 6 | mA | fPFC=50K; GD: 1nF+10R | 7 | ||
| VCC clamp voltage | VCCCLAMP | 22 | 25 | 28 | V | ICC=10mA | 7 |
| Error amplifier reference voltage | VINV | 2.475 | 2.5 | 2.525 | V | 7 | |
| COMP maximum voltage | VCOMP_HIGH | 5 | 5.5 | 6 | V | VINV=2.4V | 7 |
| COMP minimum voltage | VCOMP_LOW | 2.1 | 2.25 | 2.4 | V | VINV=2.6V | 7 |
| COMP maximum input (sink) current | ICOMP_SINK | 2 | 3.5 | mA | VINV=2.6V, VCOMP=4V | 7 | |
| COMP maximum output (source) current | ICOMP_SOURCE | -2 | -3 | mA | VINV=2.4V, VCOMP=4V | 7 | |
| INV enable-control (disable) threshold voltage | VINV_DIS | 0.1 | 0.2 | 0.3 | V | 7 | |
| INV enable-control restart threshold voltage | VINV_EN | 0.3 | 0.45 | 0.55 | V | 7 | |
| MULT input voltage range | VMULT | 0 | 2.5 | V | 7 | ||
| Multiplier gain coefficient K | K | 0.32 | 0.38 | 0.44 | 1/V | VMULT=1V, VCOMP=4V | 7 |
| OVP COMP current threshold | IOVP | 23.5 | 27 | 30.5 | μA | 7 | |
| Static OVP COMP voltage threshold | VS_OVP | 2.1 | 2.25 | 2.4 | V | 7 | |
| ZCD high-side clamp voltage | VZCD_HIGH | 6.5 | 7 | V | IZCD=2.5mA | 7 | |
| ZCD low-side clamp voltage | VZCD_LOW | -0.3 | 0 | 0.3 | V | IZCD=-0.5mA | 7 |
| ZCD input (sink) current | IZCD_SINK | 2.5 | mA | 7 | |||
| ZCD output (source) current | IZCD_SOURCE | -1.5 | mA | 7 | |||
| Maximum propagation delay from ZCD to GD | TDEAD | 100 | 400 | ns | 7 | ||
| Restart time | TRESTART | 75 | 190 | 300 | μs | 7 | |
| Cycle-by-cycle current limit voltage threshold | VCS_clamp | 0.98 | 1.08 | 1.18 | V | 7 | |
| Current sense propagation delay | TPKD | 100 | 200 | ns | 7 | ||
| Leading edge blanking time | TLEB | 200 | 400 | ns | 7 | ||
| GD rise time | tr | 50 | 100 | ns | GD: 1nF+10R | 7 | |
| GD fall time | tf | 30 | 70 | ns | GD: 1nF+10R | 7 | |
| GD output clamp voltage | Vgd_clamp | 11 | 13.5 | 16 | V | VCC=20V | 7 |
| GD voltage in UVLO mode | Vgd_s | 1.1 | V | Igd=10mA | 7 | ||
| VCC voltage-regulator hysteresis (UVLO) | VUVHYS | 2.5 | V | 7 | |||
| Multiplier gain | GV | 80 | dB | 7 | |||
| Error amplifier bandwidth | GB | 1 | MHz | 7 | |||
| OVP current threshold hysteresis | IHYS | 20 | μA | 7 | |||
| ZCD rising-edge comparison threshold | VZCD | 1.4 | V | 7 | |||
| ZCD comparator threshold hysteresis | VZCD_HYS | 0.7 | V | 7 |
CAD (KiCad official)
- Symbol:
PT5634A - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
pt5634a-etched.step/pt5634a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pt5634a.step/pt5634a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PTC(Princeton Tech) datasheet (10 pp, sha256
381f22ed300179e4, retrieved 2026-10-27, 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), consensusoff(skipped (clean text read)), 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).