iris4009 International Rectifier Corp., iris4009 Datasheet - Page 4

• Manufacturer Part Number: iris4009
• Description: Integrated Switcher
• Manufacturer: International Rectifier Corp.

IRIS4009(K)
Block Diagram
Other Functions
O.V.P. – Overvoltage Protection Circuit
T.S.D. – Thermal Shutdown Circuit
4
START
4
T.S.D
Lead Assignments
REG.
1
Vcc
2
3
4
5
O.V.P
OSCILLATOR
Pin # Symbol
LATCH
1
2
3
4
5
Comp.2
OCP/FB
Ground
Vcc
D
+
-
S
Vth(2)
MOSFET Source terminal
Ground terminal
MOSFET Drain terminal
Control circuit supply voltage
Overcurrent detection, and Voltage mode control
feedback signal
Description
DRIVE
Comp.1
+
-
Vth(1)
www.irf.com
Ground
OCP/
FB
2
5
3
D
1
S