Rainbow-electronics MAX13256 Manual de usuario descargar pdf (Pagina 7)

�� Maxim Integrated Products 7

MAX13256

36V H-Bridge Transformer

Driver for Isolated Supplies

Pin Configuration

Pin Description

PIN NAME FUNCTION

1, 2 V

Power Supply. Bypass V

to ground with a 1FF capacitor as close as possible to the device.

3 CLK

Clock Input. Connect CLK to GND to enable internal clocking. Apply a clock signal to CLK to enable exter-

nal clocking.

EN Enable Input. Drive EN low to enable the device. Drive EN high to disable the device.

5 ITH

Overcurrent Threshold Adjustment Input. Connect a resistor (R

LIM

) from ITH to GND to set the overcurrent

threshold for the ST1 and ST2 outputs. Do not exceed 10pF of capacitance to GND on ITH.

FAULT

Fault Open-Drain Output. The fault open-drain transistor turns on when there is either an overtemperature or

overcurrent condition.

7, 9 GND Ground

8 ST2 Transformer Drive Output 2

10 ST1 Transformer Drive Output 1

— EP

Exposed Pad. Internally connected to GND. Connect EP to a large ground plane to maximize thermal perfor-

mance; not intended as an electrical connection point.

1 3 4

10 8 7

ST1 ST2 GND

GND

FAULT

CLK ENV

ITH

*EP

TDFN

TOP VIEW

*EXPOSED PAD—CONNECT TO GND

MAX13256

1 2 3 4 5 6 7 8 9 10 11 12 ... 16 17

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Rainbow-electronics MAX13256 Manual de usuario Pagina 7