OB2276CP PWM Control IC – Power Management for Whatsminer P222B PSU
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OB2276CP PWM Control IC | Power Management for Whatsminer P222B PSU
Boost your crypto-mining power supply efficiency with the OB2276CP — a highly integrated, current-mode PWM controller engineered for Whatsminer P222B PSUs and other offline flyback converters. This cost-effective IC delivers exceptional energy efficiency with under-1W standby power, making it ideal for 24/7 mining operations where reliability and idle-power savings both matter.
The chip ships in a compact SOP8 form factor that drops directly into the original P222B footprint. A fixed 65kHz switching frequency with ±10% tolerance keeps the control loop predictable, and the full protection suite — cycle-by-cycle OCP, OVP, OTP, UVLO, all auto-recovery — guards the PSU through the abnormal events typical of harsh mining-farm conditions.
65kHz Fixed Frequency PWM IC with OCP/OVP/OTP — Ideal for Mining Rig Power Adapters
- Burst mode operation — reduces switching losses under light loads, ideal for variable mining workloads.
- Full protection suite — cycle-by-cycle OCP, OVP, OTP, and UVLO prevent PSU failures in harsh conditions.
- 65kHz fixed frequency — stable switching for clean power delivery to ASIC miners.
- EMI reduction technology — minimises interference in high-density mining farms.
- SOP8 compact design — easy integration into mining-PSU repairs and custom power solutions.
Where the OB2276CP Fits
Trusted by mining hardware technicians and PSU manufacturers, the OB2276CP ensures long-lasting, efficient power conversion for Bitcoin miners, Whatsminer rigs, and industrial mining setups. The 8V-30V VDD range with 7.4V UVLO threshold matches the auxiliary supply rails on standard P222B-class PSU designs, and burst-mode operation keeps idle losses low between mining workloads. Pair with a fresh primary MOSFET and a clean secondary-side feedback chain when refurbishing a P222B PSU at the chip level.
OB2276CP PWM Control IC Specifications
| Feature | Specification |
|---|---|
| Switching Frequency | Fixed 65kHz (±10%) |
| Protections | OCP / OLP / OVP / OTP / UVLO (Auto-Recovery) |
| Standby Power | <1W (Burst Mode Operation) |
| Package Type | SOP8 Compact Form Factor |
| VDD Range | 8V - 30V (UVLO at 7.4V) |
| Applications | Mining PSUs, Power Adapters, Battery Chargers |
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P222B repair benches ordering OB2276CP in volume? Email contact@lys-sz.com for bulk pricing and matched PSU repair kits. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
