SGM48524XS8 Dual Gate Driver for Whatsminer P221C PSU
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SGM48524XS8 Dual High-Speed Low-Side Gate Driver | 5A Peak SOIC-8 for Whatsminer P221C PSU Repair
The SGM48524XS8 is a dual high-speed low-side gate driver used on the Whatsminer P221C power supply. Two independent gate-drive channels, 5A peak source / sink current, rail-to-rail drive capability across capacitive loads. Designed for applications requiring precise dual-gate drives like the half-bridge / push-pull configurations found in mining PSU primary and secondary stages.
Headline specs: 4.5V to 18V supply range, TTL and CMOS-compatible logic thresholds, 18ns typical propagation delay, 7ns rise / 7ns fall time, -40°C to +125°C operating range. Built-in thermal shutdown, undervoltage lockout, and short-circuit protection — designed to fail safe rather than cascade damage into surrounding MOSFETs.
When to Replace the SGM48524XS8
- PSU stuck at start, no PWM — driver output dead, MOSFETs not switching.
- Asymmetric or distorted gate waveforms on one of the two channels — partial-failure mode.
- Power-stage MOSFET damage — when a MOSFET dies, the driver is often killed in the same event and must be replaced together.
- Excessive switching loss / MOSFET overheat — slow gate transitions caused by partially-failed driver.
- Visible damage on the SOIC-8 package — burnt, cracked, or discoloured.
SGM48524XS8 Specifications
| Parameter | Specification |
|---|---|
| Part Number | SGM48524XS8 |
| Type | Dual high-speed low-side gate driver |
| Number of Channels | Two independent channels |
| Peak Current Source / Sink | 5A |
| Supply Voltage Range | 4.5V to 18V |
| Logic Compatibility | TTL and CMOS-compatible |
| Hysteretic Input Logic | Yes |
| Propagation Delay | 18ns typical |
| Rise Time | 7ns typical |
| Fall Time | 7ns typical |
| Protection Features | Thermal shutdown, UVLO, short-circuit |
| Operating Temperature | -40°C to +125°C |
| Compatible PSU | Whatsminer P221C |
FAQ — SGM48524XS8 Dual Gate Driver
Q: How do I confirm the gate driver is the failed part?
A: Scope the gate pins of the suspect MOSFET pair with the PSU controller trying to start. Healthy driver produces clean rail-to-rail pulses on both channels in phase with the controller's PWM input. No output, distorted shape, or stuck high/low on one channel = driver failed.
Q: Always replace the driver when a MOSFET dies?
A: Strongly recommended. The voltage spike from a shorting MOSFET very often takes the driver with it. Skipping the driver replacement is a common cause of repeat failures within hours of returning to service.
Q: Rework profile?
A: Standard SOIC-8 rework. Preheat to 100°C, hot air at 320°C with flux paste. Verify all 8 pins solder cleanly under magnification before powering up.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.
Related products
- SLM346 Isolated Gate Driver (Whatsminer P221 / P222)
- SLM346CK-DG Gate Driver (Whatsminer P221 / P222)
- UCC27210DR MOSFET Gate Driver
- Whatsminer P222B Power Supply Unit
Whatsminer P221C PSU repair benches stocking SGM48524XS8 in tape-and-reel volume? Email contact@lys-sz.com for bulk pricing. 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).
