NCP1253 データシートの表示（PDF） - ON Semiconductor
部品番号
コンポーネント説明
メーカー
NCP1253 Datasheet PDF : 15 Pages
| |||
Vbulk
NCP1253
Vout
.
.
NCP1253
1
6
2
5
3
4
.
ramp
comp.
Figure 1. Typical Application Schematic
PIN FUNCTION DESCRIPTION
Pin No. Pin Name
1
GND
2
FB
Function
−
Feedback pin
3
NC
Non−connected pin
4
CS
Current sense + ramp compensation
5
VCC
Supplies the controller – protects the IC
6
DRV
Driver output
Description
The controller ground.
Hooking an optocoupler collector to this pin will allow
regulation.
The pin is electrically inert and can be grounded if necessary
This pin monitors the primary peak current but also offers a
means to introduce slope compensation.
This pin is connected to an external auxiliary voltage. An OVP
comparator monitors this pin and offers a means to latch the
converter in fault conditions.
The driver’s output to an external MOSFET gate.
OPTIONS
Controller
NCP1253ASN65T1G
NCP1253BSN65T1G
NCP1253ASN100T1G
NCP1253BSN100T1G
Frequency
65 kHz
65 kHz
100 kHz
100 kHz
OCP Latched
Yes
No
Yes
No
OCP Auto−Recovery
No
Yes
No
Yes
ORDERING INFORMATION
Device
Package
Marking
OCP
Protection
Switching
Frequency
(kHz)
Package
Shipping†
NCP1253ASN65T1G
53A
Latch
65
NCP1253BSN65T1G
532
Auto
65
Recovery
NCP1253ASN100T1G
53C
Latch
100
TSOP−6
(Pb−Free)
3000 / Tape & Reel
NCP1253BSN100T1G
53D
Auto
100
Recovery
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
http://onsemi.com
2
Share Link: 