ZXGD3101T8
Schematic symbol and pin description
Vcc
+
H igh V o lt
G ate D rive C ontrol
-
com parator
GATEH
D R A IN
+
-
H igh V o lt
com parator
T urn-on/off C ontrol
D river
GATEL
T hreshold V oltage
C ontrol
REF
B IA S
GND
Pin No.
1
2
3
4
5
6
7
8
Symbol
NC
REF
GATEL
GATEH
V CC
GND
BIAS
DRAIN
Description and function
No connection
This pin can be connected to GND
Reference
This pin is connected to V CC via resistor, R REF . R REF should be selected to source
~3mA into this pin. See note 1
Gate turn off
This pin sinks current, I SINK , from the synchronous MOSFET Gate.
Gate turn on
This pin sources current, I SOURCE , to the synchronous MOSFET Gate.
Power Supply
This is the supply pin. It is recommended to decouple this point to ground
closely with a ceramic capacitor.
Ground
This is the ground reference point. Connect to the synchronous MOSFET Source
terminal.
Bias
This pin is connected to V CC via resistor, R BIAS . R BIAS should be selected to
source 1.6 times I REF into this pin. See note 1
Drain connection
This pin connects directly to the synchronous MOSFET Drain terminal.
NOTES:
1. BIAS and REF pins should be assumed to be at GND+0.7V
Issue 4 - January 2009
? Diodes Incorporated 2009
4
www.zetex.com
www.diodes.com
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