Diodes Incorporated
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DGD21042 (Obsolete)

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The DGD21042 is a high-voltage / high-speed gate driver capable of driving N-channel MOSFETs and IGBTs in a half bridge configuration. High-voltage processing techniques enable the DGD21042’s high side to switch to 600V in a bootstrap operation.

The DGD21042 logic inputs are compatible with standard TTL and CMOS levels (down to 3.3V) to interface easily with controlling devices. The driver outputs feature high-pulse current buffers designed for minimum driver cross conduction. The DGD21042 has a fixed internal deadtime of 430ns (typical).

The DGD21042 is offered in the SO-8 (Type TH) package and operates over an extended -40°C to +125°C temperature range.


  • Floating High-Side Driver in Bootstrap Operation to 600V
  • Drives two N-Channel MOSFETs or IGBTs in a Half Bridge Configuration
  • 290mA Source / 600mA Sink Output Current Capability
  • Outputs Tolerant to Negative Transients
  • Internal Dead Time of 430ns to Protect MOSFETs
  • Wide Low-Side Gate Driver Supply Voltage: 10V to 20V
  • Logic Input (IN and SD*) 3.3V Capability
  • Schmitt Triggered Logic Inputs
  • Undervoltage Lockout for VCC (Logic and Low Side Supply)
  • Extended Temperature Range: -40°C To +125°C


  • DC-DC Converters
  • DC-AC Inverters
  • AC-DC Power Supplies
  • Motor Controls
  • Class D Power Amplifiers

Product Specifications

Product Parameters

Inputs IN, SD (Enable Low)
Internal Deadtime (Typ) 430
Offset Voltage Max (V) 600
Output Current IO- (Typ) (mA) 600
Output Current IO+ (Typ) (mA) 290
tF (Typ) (ns) 35
tOFF (Typ) (ns) 150
tON (Typ) (ns) 680
tR (Typ) (ns) 70

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2502 2021-03-15 2021-09-15 Device End of Life (EOL)