# CM1600C

**iCM(创芯微)** · IC · SOP-8

CM1600C from iCM(创芯微), 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 | GND | power_in | Ground reference (地) for the controller; pins 1, 2 and 3 are all GND and should be connected together. |
| 2 | GND | power_in | Ground reference (地); bonded together with pins 1 and 3 as GND. |
| 3 | GND | power_in | Ground reference (地); bonded together with pins 1 and 2 as GND. |
| 4 | VCC | power_in | Chip supply pin; the VCC-to-GND rating is -0.3 V to +7 V, and the UVLO turn-on threshold is 1.5 V to 2.7 V (2.1 V typ.) with 0.3 V typical hysteresis. |
| 5 | VD | passive | Drain of the internal power MOSFET; the drain-to-ground voltage rating is -0.7 V to +40 V. |
| 6 | VD | passive | Drain of the internal power MOSFET; the drain-to-ground voltage rating is -0.7 V to +40 V. |
| 7 | VD | passive | Drain of the internal power MOSFET; the drain-to-ground voltage rating is -0.7 V to +40 V. |
| 8 | VD | passive | Drain of the internal power MOSFET; the drain-to-ground voltage rating is -0.7 V to +40 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | iCM(创芯微) |
| Package | SOP-8 |
| Category |  |
| 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 to GND voltage | VCC | -0.3 |  | 7 | V |  | 4 |
| Drain to GND voltage | VD | -0.7 |  | 40 | V |  | 4 |
| Maximum operating frequency | FMAX |  |  | 200 | KHz |  | 4 |
| Thermal resistance | PTR1 |  |  | 150 | ℃/W |  | 4 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 4 |
| Operating temperature |  | -20 |  | 125 | ℃ |  | 4 |
| Soldering temperature | Tsolder |  |  | 260 | ℃ | 10s | 4 |
| ESD human body model | ESD |  |  | 4 | KV | Human body model | 4 |
| VCC turn-on threshold (UVLO rising) | VUVLO1 | 1.5 | 2.1 | 2.7 | V | VCC raising | 5 |
| Quiescent current | IQ | 100 | 275 | 450 | µA | VCC=SR=6V | 5 |
| Synchronous rectification turn-on threshold | VON_TH | -400 | -250 | -100 | mV |  | 5 |
| Synchronous rectification turn-off threshold | VOFF_TH | -15 | -10 | -5 | mV |  | 5 |
| Driver adjust threshold | VREG(DRV) | -60 | -45 | -30 | mV |  | 5 |
| Minimum on time | TON_MIN | 0.8 | 1.2 | 1.6 | us |  | 5 |
| Minimum off time | TOFF_MIN | 2 | 3 | 4 | us |  | 5 |
| Primary turn-on detection blanking time | TPS_ON_DET | 200 | 350 | 500 | ns |  | 5 |

## CAD (KiCad official)

- Symbol: `CM1600C`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `cm1600c-etched.step` / `cm1600c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cm1600c.step` / `cm1600c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [iCM(创芯微) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603386727554179072) (9 pp, sha256 `c9eb8c949b532e3e`, 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/cm1600c-datasheet.pdf)