10%

90%

90%

0V

5V

0V

OUTx

ENBx

UCC27423, UCC27424, UCC27425

www.ti.com

SLUS545D – NOVEMBER 2002 – REVISED MAY 2013

NOTE: The 10% and 90% thresholds depict the dynamics of the BiPolar output devices that dominate the power MOSFET

transition through the Miller regions of operation.

Figure 2. Switching Waveform for Enable to Output

Terminal Functions

TERMINAL

I/O

FUNCTION

NO.

NAME

1

ENBA

I

Enable input for the driver A with logic compatible threshold and hysteresis. The driver output can be enabled and disabled with

disabled will be low regardless of the input state.

2

INA

I

Input A. Input signal of the A driver which has logic compatible threshold and hysteresis. If not used, this input should be tied to

3

GND

Common ground. This ground should be connected very closely to the source of the power MOSFET which the driver is driving.

4

INB

I

Input B. Input signal of the A driver which has logic compatible threshold and hysteresis. If not used, this input should be tied to

either VDD or GND. It should not be left floating.

5

OUTB

O

Driver output B. The output stage is capable of providing 4A drive current to the gate of a power MOSFET.

6

VDD

I

Supply. Supply voltage and the power input connection for this device.

7

OUTA

O

Driver output A. The output stage is capable of providing 4A drive current to the gate of a power MOSFET.

8

ENBB

I

Enable input for the driver B with logic compatible threshold and hysteresis. The driver output can be enabled and disabled with

(1)

Refer to APPLICATION INFORMATION Section for more details.

Copyright © 2002–2013, Texas Instruments Incorporated

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