NCP1251ASN65T1G ON Semiconductor, NCP1251ASN65T1G Datasheet - Page 2

• Manufacturer Part Number: NCP1251ASN65T1G
• Description: IC PWM CTLR OCP LATCH OVP 6TSOP
• Manufacturer: ON Semiconductor

Specifications of NCP1251ASN65T1G

• Output Isolation: Isolated
• Frequency Range: 61kHz ~ 71kHz
• Voltage - Input: 9.4 V ~ 28 V
• Voltage - Output: 12V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 6-TSOP (0.063", 1.60mm Width)
• Number Of Outputs: 1
• Duty Cycle (max): 84 %
• Output Current: 300 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 65 KHz
• Operating Supply Voltage: 28 V
• Supply Current: 2.1 mA
• Maximum Operating Temperature: + 125 C
• Fall Time: 30 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 40 ns
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
ORDERING INFORMATION
Specifications Brochure, BRD8011/D.
NCP1251ASN65T1G
NCP1251BSN65T1G
NCP1251ASN100T1G
NCP1251BSN100T1G
Pin N5
OPTIONS
Vbulk
1
2
3
4
5
6
NCP1251ASN100T1G
NCP1251BSN100T1G
NCP1251ASN65T1G
NCP1251BSN65T1G
Device
Controller
Pin Name
OPP/OVP
GND
DRV
V
FB
CS
CC
OVP
Adjust the Over Power Protection
Package Marking
1
2
3
Supplies the controller
Current sense + ramp
Latches off the part
OPP
NCP1251
5AA
5AC
5AD
5A2
compensation
Feedback pin
Driver output
Function
−
Frequency
Figure 1. Typical Application Example
100 kHz
100 kHz
65 kHz
65 kHz
6
5
4
OCP Protection
Autorecovery
Autorecovery
http://onsemi.com
Latch
Latch
The controller ground.
Hooking an optocoupler collector to this pin will allow regulation.
A resistive divider from the auxiliary winding to this pin sets the OPP
compensation level. When brought above 3 V, the part is fully latched off.
This pin monitors the primary peak current but also offers a means to
introduce ramp compensation.
This pin is connected to an external auxiliary voltage and supplies the
controller. When the V
auto-recovery hiccup.
The driver’s output to an external MOSFET gate.
ramp
comp.
2
.
Switching Frequency
OCP Latched
Yes
Yes
No
No
100 kHz
100 kHz
65 kHz
65 kHz
.
CC
.
exceeds a certain level, the part enters an
Pin Description
(Pb−Free)
Package
TSOP−6
OCP Auto−Recovery
Yes
Yes
No
No
Tape & Reel
Shipping
3000 /
Vo u t
†