component
AP3776BMTR-G1
Public Made by Adomby adom
Diodes Incorporated AC-DC Controllers & Regulators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AP3776BMTR-G1
Diodes Incorporated · AC-DC Controllers & Regulators · SOP-8
AP3776BMTR-G1 from Diodes Incorporated, 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 | IS | input | Primary current sensing pin; connected with the EM pin through the internal startup switch, and its voltage is limited to -0.3 to 7 V. |
| 2 | EM | passive | Connected to the source of the external power MOSFET; the voltage is kept below 1 V in normal operation and is rated -0.3 to 23 V. |
| 3 | VCC | power_in | Power supply pin with a startup threshold of 13 V typ (11 to 14 V), minimal operating voltage of 6.1 V typ, and an absolute maximum of 28 V. |
| 4 | OUT | output | Drives the base of the external power MOSFET (gate clamp 14 to 16 V, source current 67 mA typ, sink current 500 mA typ), rated -0.3 to 23 V. |
| 5 | GND | power_in | Ground pin, reference for all voltage ratings. |
| 6 | VCS | input | Current sensing voltage pin with a 450 mV typ (425 to 465 mV) current sense threshold, rated -0.3 to 7 V. |
| 7 | CPC | passive | Connects a capacitor for output cable compensation, with voltage rated -0.3 to 7 V. |
| 8 | FB | input | Voltage feedback input from the auxiliary winding divider with a 3.7 V typ threshold, 0.7 MΩ typ input resistance, and a rated input of -40 to 10 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOP-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 Threshold | VTH(ST) | 11 | 13 | 14 | V | 5 | |
| Minimal Operating Voltage | VOPR(Min) | 5.3 | 6.1 | 7 | V | After turning on | 5 |
| Startup Current | IST | 0 | 0.2 | 0.6 | µA | VCC = VTH(ST)-1V, Before turning on | 5 |
| Standby Mode Quiescent Current | ICC(STB) | 60 | 100 | 130 | µA | No load at OUT pin, Standby Mode | 5 |
| Normal Mode Quiescent Current | ICC(QST) | 160 | 280 | 330 | µA | No load at OUT pin, Normal Mode | 5 |
| Current Sense Threshold | VCS | 425 | 450 | 465 | mV | 5 | |
| Leading Edge Blanking | tLEB | 300 | 500 | 700 | ns | 5 | |
| Input Resistance of FB Pin | RFB | 0.5 | 0.7 | 0.9 | MΩ | VFB = 4V | 5 |
| Feedback Threshold Voltage | VFB | 3.64 | 3.7 | 3.76 | V | 5 | |
| Line Compensation Transconductance | gm | 0.55 | 0.7 | 0.85 | µS | 5 | |
| Cable Compensation Voltage | VFB_CABLE/VFB | 2 | 3 | 4 | % | 6 | |
| Gate Clamp Voltage | VGATE_CLAMP | 14 | 16 | V | VCC = 20V, CL = 1nF | 6 | |
| Source Current | ISOURCE | 55 | 67 | 80 | mA | 6 | |
| Sink Current | ISINK | 400 | 500 | 600 | mA | 6 | |
| Maximum Off Time | tOFF(MAX) | 15 | 19 | 30 | ms | 6 | |
| Delay Time for Dynamic Function | tD | 100 | 140 | 220 | µs | 6 | |
| Trigger Voltage for Dynamic Function | VTRIGGER | 60 | 100 | 120 | mV | 6 | |
| Maximum On-Time of Primary Side | tonp(MAX) | 16 | 25 | 40 | µs | 6 | |
| Overvoltage Protection | VFB(OVP) | 6.5 | 7.5 | 8.5 | V | 6 | |
| Short-Circuit Protection | VFB(SCP) | 2.38 | 2.5 | 2.62 | V | 6 | |
| Overtemperature Protection | 110 | 130 | 150 | ºC | Junction Temperature | 6 | |
| Temperature Hysteresis | 20 | ºC | 6 | ||||
| Voltage at VCC to GND | VCC | -0.3 | 28 | V | 5 | ||
| Voltage at OUT, EM to GND | -0.3 | 23 | V | 5 | |||
| Voltage at IS, VCS, CPC to GND | -0.3 | 7 | V | 5 | |||
| FB Input | -40 | 10 | V | 5 | |||
| Operating Junction Temperature | TJ | 150 | ºC | 5 | |||
| Storage Temperature | TSTG | -65 | 150 | ºC | 5 | ||
| Lead Temperature | TLEAD | 300 | ºC | Soldering, 10 Sec | 5 | ||
| ESD Human Body Model | ESD | 6000 | V | Human Body Model | 5 | ||
| ESD Charged Device Model | ESD | 2500 | V | Charged Device Model | 5 | ||
| ESD Machine Model | ESD | 200 | V | Machine Model | 5 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 190 | ºC/W | 5 | |||
| Temperature Range | -40 | 85 | °C | Ordering information | 14 |
CAD (KiCad official)
- Symbol:
AP3776BMTR-G1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ap3776bmtr-g1-etched.step/ap3776bmtr-g1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ap3776bmtr-g1.step/ap3776bmtr-g1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (17 pp, sha256
7942b1b87d81a450, retrieved 2026-10-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).
# AP3776BMTR-G1
**Diodes Incorporated** · AC-DC Controllers & Regulators · SOP-8
AP3776BMTR-G1 from Diodes Incorporated, 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 | IS | input | Primary current sensing pin; connected with the EM pin through the internal startup switch, and its voltage is limited to -0.3 to 7 V. |
| 2 | EM | passive | Connected to the source of the external power MOSFET; the voltage is kept below 1 V in normal operation and is rated -0.3 to 23 V. |
| 3 | VCC | power_in | Power supply pin with a startup threshold of 13 V typ (11 to 14 V), minimal operating voltage of 6.1 V typ, and an absolute maximum of 28 V. |
| 4 | OUT | output | Drives the base of the external power MOSFET (gate clamp 14 to 16 V, source current 67 mA typ, sink current 500 mA typ), rated -0.3 to 23 V. |
| 5 | GND | power_in | Ground pin, reference for all voltage ratings. |
| 6 | VCS | input | Current sensing voltage pin with a 450 mV typ (425 to 465 mV) current sense threshold, rated -0.3 to 7 V. |
| 7 | CPC | passive | Connects a capacitor for output cable compensation, with voltage rated -0.3 to 7 V. |
| 8 | FB | input | Voltage feedback input from the auxiliary winding divider with a 3.7 V typ threshold, 0.7 MΩ typ input resistance, and a rated input of -40 to 10 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOP-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 Threshold | VTH(ST) | 11 | 13 | 14 | V | | 5 |
| Minimal Operating Voltage | VOPR(Min) | 5.3 | 6.1 | 7 | V | After turning on | 5 |
| Startup Current | IST | 0 | 0.2 | 0.6 | µA | VCC = VTH(ST)-1V, Before turning on | 5 |
| Standby Mode Quiescent Current | ICC(STB) | 60 | 100 | 130 | µA | No load at OUT pin, Standby Mode | 5 |
| Normal Mode Quiescent Current | ICC(QST) | 160 | 280 | 330 | µA | No load at OUT pin, Normal Mode | 5 |
| Current Sense Threshold | VCS | 425 | 450 | 465 | mV | | 5 |
| Leading Edge Blanking | tLEB | 300 | 500 | 700 | ns | | 5 |
| Input Resistance of FB Pin | RFB | 0.5 | 0.7 | 0.9 | MΩ | VFB = 4V | 5 |
| Feedback Threshold Voltage | VFB | 3.64 | 3.7 | 3.76 | V | | 5 |
| Line Compensation Transconductance | gm | 0.55 | 0.7 | 0.85 | µS | | 5 |
| Cable Compensation Voltage | VFB_CABLE/VFB | 2 | 3 | 4 | % | | 6 |
| Gate Clamp Voltage | VGATE_CLAMP | | 14 | 16 | V | VCC = 20V, CL = 1nF | 6 |
| Source Current | ISOURCE | 55 | 67 | 80 | mA | | 6 |
| Sink Current | ISINK | 400 | 500 | 600 | mA | | 6 |
| Maximum Off Time | tOFF(MAX) | 15 | 19 | 30 | ms | | 6 |
| Delay Time for Dynamic Function | tD | 100 | 140 | 220 | µs | | 6 |
| Trigger Voltage for Dynamic Function | VTRIGGER | 60 | 100 | 120 | mV | | 6 |
| Maximum On-Time of Primary Side | tonp(MAX) | 16 | 25 | 40 | µs | | 6 |
| Overvoltage Protection | VFB(OVP) | 6.5 | 7.5 | 8.5 | V | | 6 |
| Short-Circuit Protection | VFB(SCP) | 2.38 | 2.5 | 2.62 | V | | 6 |
| Overtemperature Protection | | 110 | 130 | 150 | ºC | Junction Temperature | 6 |
| Temperature Hysteresis | | | 20 | | ºC | | 6 |
| Voltage at VCC to GND | VCC | -0.3 | | 28 | V | | 5 |
| Voltage at OUT, EM to GND | | -0.3 | | 23 | V | | 5 |
| Voltage at IS, VCS, CPC to GND | | -0.3 | | 7 | V | | 5 |
| FB Input | | -40 | | 10 | V | | 5 |
| Operating Junction Temperature | TJ | | | 150 | ºC | | 5 |
| Storage Temperature | TSTG | -65 | | 150 | ºC | | 5 |
| Lead Temperature | TLEAD | | | 300 | ºC | Soldering, 10 Sec | 5 |
| ESD Human Body Model | ESD | | | 6000 | V | Human Body Model | 5 |
| ESD Charged Device Model | ESD | | | 2500 | V | Charged Device Model | 5 |
| ESD Machine Model | ESD | | | 200 | V | Machine Model | 5 |
| Thermal Resistance Junction-to-Ambient | θJA | | 190 | | ºC/W | | 5 |
| Temperature Range | | -40 | | 85 | °C | Ordering information | 14 |
## CAD (KiCad official)
- Symbol: `AP3776BMTR-G1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `ap3776bmtr-g1-etched.step` / `ap3776bmtr-g1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ap3776bmtr-g1.step` / `ap3776bmtr-g1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AP3776BMTR-G1.pdf) (17 pp, sha256 `7942b1b87d81a450`, retrieved 2026-10-27, tier: manufacturer)
- **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/ap3776bmtr-g1-datasheet.pdf)