ir1152s International Rectifier Corp., ir1152s Datasheet - Page 12

• Manufacturer Part Number: ir1152s
• Manufacturer: International Rectifier Corp.

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State & Transitions Diagram
V
BOP
V
FB
< V
OR
< V
BOP
OLP
(VTH)
Present PulseTerminated
IPK LIMIT
Oscillator Active
Gate Inactive
FAULT
V
V
CC
OVP
< V
OR
< V
CC UVLO
SLEEP
|V
|V
|V
|V
V
V
ISNS
V
ISNS
ISNS
ISNS
CC
OVP
V
V
V
CC
CC
OVP
OVP
| < |V
< V
| > |V
| > |V
| < |V
< V
OR
< V
< V
OR
OR
<V
< V
CC UVLO
CC UVLO
V
CC UVLO
SLEEP
ISNS(PK)
V
12
ISNS(PK)
ISNS(PK)
ISNS(PK)
SLEEP
OVP
SLEEP
FB
V
COMP
> V
> V
V
V
V
BOP
OVP
V
|
CC
|
OR
|
|
OVP
FB
OVP
< V
AND
> V
AND
AND
Present PulseTerminated
> V
> V
AC POWER ON
UVLO/SLEEP
Internal Circuits Biased
Internal Circuits Biased
> V
SOFT START
(VTH)
STAND – BY
(VTH)
OVP FAULT
COMP,START
Vcomp Discharged
Vcomp Discharged
CCON
SLEEP
BOP(EN)
OLP
Oscillator Active
NORMAL
Oscillator Active
Oscillator Active
Internal Circuits
Gate Inactive
Gate Inactive
Gate Inactive
Gate Inactive
V
C
Gate Active
Gate Active
MODE
MODE
Unbiased
COMP
Z
Charging
Rising
Cz fully charged
V
V
OVP
V
FB
V
V
BOP
CC
OVP
< V
< V
AND
V
< V
FB
< V
OVP(RST)
OR
< V
OVP(RST)
OR
< V
CC UVLO
V
V
BOP
BOP
BOP
SLEEP
OLP
(VTH)
V
< V
FB
< V
OR
< V
BOP
BOP
OLP
(VTH)
(VTH)
© 2011 International Rectifier
IR1152S