ncp1395 ON Semiconductor, ncp1395 Datasheet - Page 25

• Manufacturer Part Number: ncp1395
• Description: High Performance Resonant Mode Controller
• Manufacturer: ON Semiconductor

are available, via two circuit versions. The NCP1395A
features a large hysteresis to allow a classical startup
method with a resistor connected to the bulk capacitor.
Then, at the end of the startup sequence, an auxiliary
winding is supposed to take over the controller supply
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification
ORDERING INFORMATION
Brochure, BRD8011/D.
NCP1395APG
NCP1395ADR2G
NCP1395BPG
NCP1395BDR2G
As described in the data sheet, two startup levels VCC
VCC
VCC
VCC
VCC
Timer
Timer
A&B
A&B
SS
SS
FB
FB
ON
ON
(min)
(min)
Figure 52. When the V
Device
0.6V
0.6V
1V
1V
4V
4V
A B
A B
T
T
SS
SS
CC
Vcc from a startup resistor
Vcc from a startup resistor
is too low, all pulses are stopped until V
http://onsemi.com
to the startup voltage.
NCP1395A/B
ON
25
voltage. To the opposite, for applications where the
resonant controller is powered from a standby power
supply, the startup level of the NCP1395B of 10 V typically
allows a direct a connection from a 12 V source. Simple
ON/OFF operation is therefore feasible.
Fault!
Fault!
(Pb−Free)
(Pb−Free)
(Pb−Free)
(Pb−Free)
Package
SOIC−16
SOIC−16
PDIP−16
PDIP−16
A
A
B
B
T
T
SS
SS
CC
Fault is
Fault is
released
released
goes back
2500 Tape & Reel
2500 Tape & Reel
25 Units / Rail
25 Units / Rail
Shipping†