DGD21844

1 of 12

www.diodes.com

April 2016

© Diodes Incorporated

DGD21844

HALF- BRIDGE GATE DRIVER IN SO-14

Description

The DGD21844 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 DGD21844

’s high-side

to switch to 600V in a bootstrap operation.

The DGD21844 logic inputs are compatible with standard TTL and

CMOS levels (down to 3.3V) for easy interfacing with controlling

devices. The driver outputs feature high pulse current buffers

designed for minimum driver cross conduction. Programmable

deadtime, by an external resistor, provides more system level

flexibility.

The DGD21844 is offered in SO-14 (Type TH) package, the operating

temperature extends from -40°C to +125°C.

Applications



DC-DC Converters



DC-AC Inverters



AC-DC Power Supplies



Motor Controls



Class D Power Amplifiers

Features



Floating High-side Driver in Bootstrap Operation to 600V



Drives Two N-Channel MOSFETs or IGBTs in Half Bridge

Configuration



1.4A Source / 1.8A Sink Output Current Capability



Outputs Tolerant to Negative Transients



Programmable Dead Time to Protect MOSFETs



Wide Low-side Gate Driver and Logic Supply: 10V to 20V



Wide Logic Supply Voltage Offset Voltage:-5V to 5V



Logic Input (IN and SD*) 3.3V Capability



Schmitt Triggered Logic Inputs with Internal Pull Down



Undervoltage Lockout for High and Low Side Drivers



Extended Temperature Range: -40°C to +125°C



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free.

“Green” Device (Note 3)

Mechanical Data



Case: SO-14 (Type TH)



Case material: Molded Plastic

. “Green” Molding Compound.



UL Flammability Classification Rating 94V-0



Moisture Sensitivity: Level 3 per J-STD-020



Terminals: Finish

– Matte Tin Plated Leads, Solderable per

MIL-STD-202, Method 208



Weight: 0.142 grams (Approximate)

Product

Marking

Reel Size (inches)

Tape Width (mm)

Quantity per Reel

DGD21844S14-13

DGD21844

13

16

2,500

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.

Marking Information

SO-14 (Type TH)

Top View

Typical Configuration

DGD21844

YY WW

= Manufacturer’s marking

DGD21844 = Product Type Marking Code

YY

= Year (ex: 16 = 2016)

WW

= Week (01 to 53)