NCP3418A ON Semiconductor, NCP3418A Datasheet - Page 2

• Manufacturer Part Number: NCP3418A
• Description: Dual Bootstrapped 12 V MOSFET Driver
• Manufacturer: ON Semiconductor

PIN DESCRIPTION
Pin
1
2
3
4
5
6
7
8
Symbol
PGND
DRVH
DRVL
BST
V
SW
OD
IN
CC
OD
IN
Upper MOSFET Floating Bootstrap Supply. A capacitor connected between BST and SW pins holds this
bootstrap voltage for the high−side MOSFET as it is switched. The recommended capacitor value is between
100 nF and 1.0 mF. An external diode will be needed with the NCP3418A.
Logic−Level Input. This pin has primary control of the drive outputs.
Output Disable. When low, normal operation is disabled forcing DRVH and DRVL low.
Input Supply. A 1.0 mF ceramic capacitor should be connected from this pin to PGND.
Output drive for the lower MOSFET.
Power Ground. Should be closely connected to the source of the lower MOSFET.
Switch Node. Connect to the source of the upper MOSFET.
Output drive for the upper MOSFET.
2
3
4 V
+
−
Figure 1. NCP3418/A Block Diagram
NCP3418, NCP3418A
Nonoverlap
http://onsemi.com
Not present in
the NCP3418A
2
Description
−
+
1.5 V
V
4
CC
100 k
120 k
1
8
7
5
6
BST
DRVH
SW
DRVL
PGND