# GP8242F

**HaloChip** · AC-DC Controllers And Regulators · SOP-8

GP8242F from HaloChip, 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 | VCC | power_in | Chip power supply pin; VCC is rated to 35 V maximum, VCC clamp current is limited to 10 mA, and the UVLO threshold is 8.5 to 10.5 V. |
| 2 | GND | power_in | Chip ground reference pin. |
| 3 | FB | input | Output voltage feedback pin that samples the auxiliary winding voltage, with a constant-voltage reference of 1.97 to 2.03 V and an absolute maximum pin voltage of -0.3 to 7 V. |
| 4 | CS | input | Current sense pin connected to the sense resistor Rs, with a constant-current threshold of 588 to 612 mV and an absolute maximum pin voltage of -0.3 to 7 V. |
| 5 | D | passive | Internal power MOSFET drain pin, with a drain-to-source breakdown voltage (BVdss) of 650 V and an absolute maximum drain pin voltage of -0.3 to 650 V. |
| 6 | D | passive | Internal power MOSFET drain pin, with a drain-to-source breakdown voltage (BVdss) of 650 V and an absolute maximum drain pin voltage of -0.3 to 650 V. |
| 7 | D | passive | Internal power MOSFET drain pin, with a drain-to-source breakdown voltage (BVdss) of 650 V and an absolute maximum drain pin voltage of -0.3 to 650 V. |
| 8 | D | passive | Internal power MOSFET drain pin, with a drain-to-source breakdown voltage (BVdss) of 650 V and an absolute maximum drain pin voltage of -0.3 to 650 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HaloChip |
| 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 |
|---|---|---|---|---|---|---|---|
| VCC supply voltage | VCC |  |  | 35 | V |  | 3 |
| VCC clamp current | IVCC_clamp |  |  | 10 | mA |  | 3 |
| CS, FB pin voltage |  | -0.3 |  | 7 | V |  | 3 |
| Drain pin voltage |  | -0.3 |  | 650 | V |  | 3 |
| Maximum junction temperature | TJ |  |  | 150 | ℃ |  | 3 |
| Operating junction temperature range | TJ | -40 |  | 85 | ℃ |  | 3 |
| Storage temperature range | TSZG | -55 |  | 150 | ℃ |  | 3 |
| Maximum soldering temperature | Tlead |  |  | 260 | ℃ | soldering 10s | 3 |
| ESD rating (human body model) | ESD |  |  | 2.5 | KV | human body model, 100pF discharged through 1.5kΩ | 3 |
| Chip surface temperature limit |  |  |  | 135 | ℃ |  | 3 |
| VCC start-up voltage | VCC_SZ | 17.5 | 19 | 20.5 | V | VCC rising | 4 |
| VCC under-voltage lockout threshold | VCC_UVLO | 8.5 | 9.5 | 10.5 | V | VCC falling | 4 |
| VCC over-voltage protection | VCC_OVP | 23 | 25 | 27 | V | VCC rising | 4 |
| VCC clamp voltage | VCC_clamp | 30 | 31.5 | 33 | V | Ivcc=10mA | 4 |
| VCC start-up current | ISZ |  | 3 | 20 | uA | VCC= VCC-SZ- 1V | 4 |
| VCC operating current | Icc |  | 0.8 | 1.5 | mA | after start-up, VCC=20V | 4 |
| Current-sense threshold in constant-current mode | VCS | 588 | 600 | 612 | mV | constant-current mode | 4 |
| Constant-voltage feedback reference voltage | VFB | 1.97 | 2 | 2.03 | V | constant-voltage mode | 4 |
| Soft-start time | Tsoftstart |  | 2 |  | ms |  | 4 |
| Leading-edge blanking time | TLEB |  | 500 |  | ns |  | 4 |
| Over-current tracking control delay | TD_OC |  | 100 |  | ns | CL=0.5nF at GATE | 4 |
| Demagnetization comparison threshold | VFB_DEM |  | 25 |  | mV |  | 4 |
| Minimum off time | Tmin_OFF |  | 2 |  | us |  | 4 |
| Maximum off time | Tmax_OFF |  | 5 |  | ms |  | 4 |
| Output short-circuit threshold | VFB_Short |  | 1.16 |  | V |  | 4 |
| Output short-circuit response time | TFB_Short |  | 13 |  | ms |  | 4 |
| CC-mode switching period to demagnetization time ratio | TCC/TDEM |  | 2 |  |  | CC mode | 4 |
| Maximum cable compensation current | Icablemax |  | 50 |  | uA |  | 4 |
| Drain breakdown voltage | BVdss |  | 650 |  | V |  | 5 |
| On-resistance (GP8242F) | Rdson |  | 3.8 |  | Ω | I(Drain)=1A | 5 |
| Drain reverse leakage current | Idss |  | 1 |  | uA |  | 5 |
| Turn-on delay time | Td(on) |  | 60 |  | ns |  | 5 |
| Turn-off delay time | Td(off) |  | 128 |  | ns |  | 5 |
| Thermal resistance (SOP8) |  |  | 150 |  | ℃/W |  | 3 |

## CAD (KiCad official)

- Symbol: `GP8242F`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gp8242f-etched.step` / `gp8242f-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gp8242f.step` / `gp8242f.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HaloChip datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600520048829992960) (10 pp, sha256 `0bee6b53d84a6ada`, retrieved 2026-10-17, 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`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/gp8242f-datasheet.pdf)