NCP1236BD65R2G ON Semiconductor, NCP1236BD65R2G Datasheet - Page 2

• Manufacturer Part Number: NCP1236BD65R2G
• Description: IC CTLR CURR MODE 65KHZ 7-SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1236BD65R2G

• 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

OPTIONS
PIN FUNCTION DESCRIPTION
Pin No
(dc)
VIN
1
2
3
4
5
6
8
NCP1236
Part
Pin Name
LATCH
GND
DRV
V
CS
HV
FB
CC
Option
A
A
B
B
C
C
D
D
High−voltage pin
Figure 1. Flyback Converter Application Using the NCP1236
Latch−Off Input
LATCH
Current Sense
Drive output
GND
Feedback
Function
V
CS
FB
CC
input
NCP1236
TYPICAL APPLICATION EXAMPLE
Frequency
100 kHz
100 kHz
100 kHz
100 kHz
65 kHz
65 kHz
65 kHz
65 kHz
HV
VCC
DRV
Pull the pin up or down to latch−off the controller. An internal current source
allows the direct connection of an NTC for over temperature detection
An optocoupler collector to ground controls the output regulation.
This Input senses the Primary Current for current−mode operation, and Offers
an overpower compensation adjustment.
IC Ground
Drives external MOSFET
This supply pin accepts up to 28 Vdc, with overvoltage detection
Connects to the bulk capacitor or the rectified AC line to perform the functions
of Start−up Current Source, Dynamic Self−Supply and brown−out detection
http://onsemi.com
2
Autorecovery
Autorecovery
Autorecovery
Autorecovery
OCP Fault
Latched
Latched
Latched
Latched
Pin Description
Fault Timer
128 ms
128 ms
128 ms
128 ms
32 ms
32 ms
32 ms
32 ms
Autorecovery
Timer
1.5 s
1.5 s
1.5 s
1.5 s
1 s
1 s
1 s
1 s
VOUT