# CH70150AB5PR

**COSEMITECH** · Current Sensors · SOP-8

CH70150AB5PR from COSEMITECH, in a SOP-8. 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 | IP+ | passive | Terminal for current being sensed (positive side of primary conductor). Internally fused/tied to pin 2 through the 0.8 mΩ primary copper path. Electrically isolated from pins 5-8 by 3000 VRMS reinforced isolation. |
| 2 | IP+ | passive | Terminal for current being sensed (positive side of primary conductor). Internally connected to pin 1 through the primary copper conduction path. Typically tied to pin 1 externally to carry the sensed current. |
| 3 | IP- | passive | Terminal for current being sensed (return side of primary conductor). Internally connected to pin 4 through the primary copper path. Current flowing pin 1/2 → pin 3/4 produces a positive-slope output. |
| 4 | IP- | passive | Terminal for current being sensed (return side of primary conductor). Internally tied to pin 3 through the primary copper path. Typically tied to pin 3 externally. |
| 5 | GND | power_in | Signal ground terminal for the sensor / low-voltage side of the isolation barrier. Return for VCC and reference for VIOUT. |
| 6 | FILTER | passive | Terminal for external filter capacitor (CF) that sets output bandwidth. Together with the internal 1.7 kΩ filter resistor (RF(int)), CF forms an RC low-pass on the output signal path. Default −3 dB bandwidth is 120 kHz with CF = 0. |
| 7 | VIOUT | output | Analog output signal. Ratiometric to VCC; for the AB5 variant (VIOUT proportional to VCC), zero-current output ≈ VCC/2 with a slope of 40 mV/A (typical) over the ±50 A range. Drives loads down to RL = 4.7 kΩ; VOH ≥ VCC − 0.2 V, VOL ≤ 0.2 V. |
| 8 | VCC | power_in | Device power supply terminal. Nominal 5 V ± 0.5 V for the AB5 variant (3.3 V options exist as AB3 variants). Typical supply current ICC = 10 mA (14 mA max). Bypass locally with 0.1 µF to GND. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | COSEMITECH |
| Package | SOP-8 |
| Category | Sensor |
| Pins | 8 |

## Ordering variants

Same part, different packaging or reel option.

- `CH70150AB5PR`
- `CH70150AB3PR`
- `CH70150BB5PR`
- `CH70150CB3PR`
- `CH70150AU5PR`
- `CH70150AU3PR`
- `CH70150BU5PR`
- `CH70150CU3PR`
- `CH701W`
- `CH706W`
- `CH707W`

## CAD (KiCad official)

- Symbol: `CH70150AB5PR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ch70150ab5pr-etched.step` / `ch70150ab5pr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ch70150ab5pr.step` / `ch70150ab5pr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [COSEMITECH datasheet](docs/ch70150ab5pr-datasheet.pdf) (62 pp, sha256 `bc54e9c5ff632dd6`, 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](docs/ch70150ab5pr-datasheet.pdf)