MP8796BGVT M8796B Antminer E9 and E9pro Hash Board Converter Chip
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MP8796BGVT M8796B PMBus Buck Converter for Antminer E9 / E9 Pro
The MP8796BGVT M8796B is a fully integrated, PMBus-compatible buck converter designed for the maintenance and repair of Antminer E9 and E9 Pro hashboards. Compact and efficient solution, capable of delivering up to 30A output current per phase, with exceptional load and line regulation across a wide input supply range.
Provides essential protection: over-current (OCP), over-voltage (OVP), under-voltage (UVP), and over-temperature (OTP) protection. PMBus 1.3 compliance ensures seamless integration with the E9 / E9 Pro control board's digital power-management interface — drop-in replacement when the buck converter fails on E9 / E9 Pro hashboards.
Key Features
- PMBus 1.3 compliant — digital power management interface.
- Scalable multi-stage operations.
- Wide input supply range — 3.1V to 16V with external 3.3V VCC bias, 4V to 16V with internal bias.
- 30A continuous output current per phase.
- Low RDS(on) integrated power MOSFET.
- Lossless on-chip current sensing.
- Adaptive COT for ultra-fast transient response.
- Stable with zero-ESR output capacitors.
- True remote sensing of output voltage.
- Custom configurations stored in built-in MTP.
- Compact TQFN-25 (4×5 mm) package.
MP8796BGVT Specifications
| Technical Feature | Specification |
|---|---|
| Part Number | MP8796BGVT (M8796B silk marking) |
| Function | Fully integrated PMBus buck converter |
| PMBus Compliance | 1.3 |
| Input Range | 3.1V – 16V (ext 3.3V VCC) / 4V – 16V (internal bias) |
| Output Current | 30A per phase (continuous) |
| Protections | OCP / OVP / UVP / OTP |
| Current Sensing | Lossless on-chip |
| Configuration Storage | Built-in MTP |
| Package | TQFN-25 (4 × 5 mm) |
| Compatible Hashboards | Antminer E9 / E9 Pro |
| Condition | Brand New |
FAQ — MP8796BGVT Buck Converter
Q: How do I diagnose a failed MP8796BGVT on E9 / E9 Pro hashboard?
A: Typical signs: domain Vout absent or wrong, hashboard reports missing domain on chip scan, PMBus communication errors with the buck converter address. Test by measuring Vout at the converter output pin. Visible damage to TQFN-25 package confirms catastrophic failure.
Q: Can I substitute another PMBus buck converter?
A: Functionally — only if pin-compatible at TQFN-25 with matching PMBus address. The MP8796BGVT has specific configuration stored in MTP that's tuned to E9 / E9 Pro behavior. For OEM-spec repair, stick with this exact part.
Q: What's the "TQFN-25" package — is it hand-solderable?
A: TQFN-25 (4×5mm with thermal pad) requires hot-air rework or reflow station — not suitable for hand soldering. Standard hashboard chip rework workflow: hot air at 280-320°C, flux + solder wick for pad cleaning, paste application, controlled reflow.
Q: Bulk pricing for E9 / E9 Pro repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume for tier pricing on MP8796BGVT stock.
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- Antminer E9 Pro Water Cooling Block Kit
Antminer E9 / E9 Pro repair shops stocking MP8796BGVT? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
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