# ME8123AD8G

**MICRONE** · AC-DC Controllers & Regulators · DIP-8

ME8123AD8G from MICRONE, in a DIP-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 pin of the controller. |
| 2 | VDD | power_in | Supply pin; recommended 10~30 V, UVLO on 9 V / off 15 V, abs max -0.3~30 V, clamp 35 V typ at 5 mA. |
| 3 | FB | input | Feedback input; abs max -0.3~7 V, open-circuit voltage 5 V typ, enters green mode at 1.8 V and burst mode at 1 V. |
| 4 | CS | input | Current sense input with 220 ns leading-edge blanking; abs max -0.3~7 V, max current limit threshold 0.75 V typ. |
| 5 | DRAIN | passive | Drain of the internal 650 V/7 A high-voltage power MOSFET, connected internally with pins 6, 7 and 8. |
| 6 | DRAIN | passive | Drain of the internal 650 V/7 A high-voltage power MOSFET, connected internally with pins 5, 7 and 8. |
| 7 | DRAIN | passive | Drain of the internal 650 V/7 A high-voltage power MOSFET, connected internally with pins 5, 6 and 8. |
| 8 | DRAIN | passive | Drain of the internal 650 V/7 A high-voltage power MOSFET, connected internally with pins 5, 6 and 7. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | DIP-8 |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Startup current | IStartup |  | 5 | 20 | μA | VDD=UVLOOFF-1V, current into VDD | 4 |
| Operating current | IOperation |  | 1 | 2 | mA | VFB=3V | 4 |
| VDD UVLO on voltage | UVLOON | 8 | 9 | 10 | V |  | 4 |
| VDD UVLO off voltage | UVLOOFF | 14 | 15 | 16 | V |  | 4 |
| VDD clamp voltage | VDD_Clamp | 32 | 35 | 37 | V | IVDD = 5 mA | 4 |
| VDD OVP on voltage | OVPON | 28 | 30 | 32 | V |  | 4 |
| VDD OVP release voltage | OVPOFF | 24 | 26 | 28 | V |  | 4 |
| Over-temperature protection | OTP | 145 | 155 | 165 | °C |  | 4 |
| Maximum duty cycle | Maximum duty cycle | 75 | 80 | 85 | % | VDD=16V, VFB=3V, VCS=0V | 4 |
| FB open-circuit voltage | VFB_Open | 4.5 | 5 | 5.5 | V |  | 4 |
| Overpower protection debounce time | TD_PL | 30 | 38 | 46 | mS |  | 5 |
| Max current limit comparator voltage | VTH_OC | 0.7 | 0.75 | 0.8 | V | FB=3.3V | 5 |
| Operating frequency | FOSC | 60 | 67.5 | 75 | KHz | VDD=16V, FB=3V, CS=0V | 5 |
| Frequency variation over temperature | ∆f_Temp |  |  | 5 | % | VDD = 16V, TA -20°C to 140 °C | 5 |
| Frequency variation over VDD | ∆f_VDD |  |  | 5 | % | VDD = 9-25V | 5 |
| Drain-source breakdown voltage | BVdss | 650 |  |  | V | Vgs=0 | 5 |
| Drain-source on resistance | Ron |  |  | 1.4 | Ω | VGS=10V, Id=3.5A | 5 |
| PWM input gain | AVCS |  | 2 |  | V/V | ΔVFB/ΔVCS | 4 |
| FB short-circuit current | IFB_Short |  | 0.4 |  | mA | FB shorted to GND, current out of FB | 4 |
| FB voltage entering green mode | VREF_GREEN |  | 1.8 |  | V |  | 4 |
| FB voltage exiting burst mode | VREF_BURST_H |  | 1.1 |  | V |  | 4 |
| FB voltage entering burst mode | VREF_BURST_L |  | 1 |  | V |  | 4 |
| Overpower protection FB voltage | VTH_PL |  | 3.5 |  | V |  | 5 |
| Leading edge blanking time | T_blanking |  | 220 |  | nS |  | 5 |
| Control detection delay time | TD_OC |  | 120 |  | nS |  | 5 |
| Frequency jitter amplitude | ∆f_OSC | -6 |  | 6 | % |  | 5 |
| Frequency jitter period | F_shuffling |  | 32 |  | Hz |  | 5 |
| Burst mode base frequency | F_Burst |  | 25 |  | KHz |  | 5 |
| Nominal operating current | ID |  | 7 |  | A |  | 5 |
| Supply voltage | VDD | 10 |  | 30 | V |  | 4 |
| Operating temperature |  | -20 |  | 85 | °C |  | 4 |
| DRAIN voltage |  |  |  | 650 | V |  | 4 |
| VDD voltage | VDD | -0.3 |  | 30 | V |  | 4 |
| VDD current |  | 0 |  | 5 | mA |  | 4 |
| FB, CS voltage |  | -0.3 |  | 7 | V |  | 4 |
| Power dissipation |  |  |  | 1.39 | W |  | 4 |
| Operating temperature range |  | -20 |  | 85 | ºC |  | 4 |
| Storage temperature range |  | -55 |  | 150 | ºC |  | 4 |
| Junction temperature range |  | -40 |  | 150 | ºC |  | 4 |
| Soldering temperature |  |  |  | 260 | ºC | 10 seconds | 4 |
| Package thermal resistance |  |  | 90 |  | ºC/W |  | 4 |

## CAD (KiCad official)

- Symbol: `ME8123AD8G`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `me8123ad8g-etched.step` / `me8123ad8g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `me8123ad8g.step` / `me8123ad8g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MICRONE datasheet](docs/me8123ad8g-datasheet.pdf) (8 pp, sha256 `878eb639aad9f805`, retrieved 2026-10-31, 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-sonnet-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/me8123ad8g-datasheet.pdf)