NCP1236AD65R2G ON Semiconductor, NCP1236AD65R2G Datasheet - Page 16

• Manufacturer Part Number: NCP1236AD65R2G
• Description: IC CTLR CURR MODE 65KHZ 7-SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1236AD65R2G

• Frequency - Max: 70kHz
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Duty Cycle: 85%
• Voltage - Supply: 9.5 V ~ 28 V
• Buck: No
• Boost: No
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width) 7 leads
• Duty Cycle (max): 85 %
• Output Current: 500 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 65 KHz
• Operating Supply Voltage: - 0.3 V to + 28 V
• Supply Current: +/- 30 mA
• Maximum Operating Temperature: + 125 C
• Fall Time: 40 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 40 ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

V
case the V
failure, or external pull−down on V
controller).
doesn’t turn on when V
HV pin is too low (below V
condition (TSD) has been detected. In all other conditions,
CC
For safety reasons, the start−up current is lowered when
There are only two conditions for which the current source
is below V
CC
pin is shorted to GND (in case of V
CC(inhibit)
V
V
V
V
CC(inhibit)
HV(start)
V
HV(min)
CC
CC(min)
CC(on)
, to reduce the power dissipation in
DRV
V
reaches V
V
HV(min)
CC
HV
), or a thermal shutdown
CC(min)
CC
Figure 31. Start−up Timing Diagram
: the voltage on
to disable the
source =
current
CC
I
HV
start1
capacitor
http://onsemi.com
16
the HV current source will always turn on and off to maintain
V
Brown−out protection
brown−out condition is detected, and the controller stops.
The HV current source alternatively turns on and off to
maintain V
voltage is back above V
CC
When the input voltage goes below V
source =
current
between V
I
HV
start2
CC
between V
CC(min)
starting
before
V
Waits
next
CC(on)
and V
HV(start)
CC(on)
CC(on)
and V
.
time
time
time
.
CC(min)
until the input
HV(stop)
, a