MAX13256 Datasheet, PDF (7/17 Pages) Maxim Integrated Products – 36V H-Bridge Transformer Driver for Isolated Supplies Integrated System Protection

MAX13256
36V H-Bridge Transformer
Driver for Isolated Supplies
Pin Configuration
TOP VIEW
ST1 GND ST2 GND FAULT
10 9 8 7 6
MAX13256
+
*EP
1234 5
V_DD V_DD CLK EN ITH
TDFN
*EXPOSED PAD—CONNECT TO GND
Pin Description
PIN NAME
FUNCTION
1, 2
V_DD Power Supply. Bypass V_DD 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.
4
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.
6
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.
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