ncp1239f ON Semiconductor, ncp1239f Datasheet - Page 5

• Manufacturer Part Number: ncp1239f
• Description: Lowstandby High Performance Pwm Controller
• Manufacturer: ON Semiconductor

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
ELECTRICAL CHARACTERISTICS
V
Soft−Start and Timer
Feedback Section
Internal Ramp Compensation
Skipping Mode and Standby Management
Brown−Out Detection
Protections
ORDERING INFORMATION
Specifications Brochure, BRD8011/D.
V
FB_stby−out
CC
NCP1239FDR2
NCP1239FDR2G
NCP1239VDR2
NCP1239VDR2G
stby−out
Symbol
FB−skip
V
V
BO
BO
I
I
R
BO
Vfault
V
R
= 20 V unless otherwise noted.)
I
V
timerC
timerD
Iratio
Rgts
TSD
Rup
timer
disch
jitter
Igts
ramp
I
Ifb
ramp
jitter
pin7
ch
hyst
thH
thL
/V
H
L
skip
Soft−Start or Jittering charge current @ V
Jittering Discharge Current @ V
Jittering Saw−Tooth Lower Threshold
Jittering Saw−Tooth Upper Threshold
Timer Peak Threshold
Timer Charge Current @ V
Timer Discharge Current @ V
Internal Pullup Resistor
Source Current @ V
Pin 8 to current Setpoint division ratio
Internal Resistor
Internal Saw−Tooth Amplitude
Pin 1 output impedance in standby state
Sink Current Source in Normal Mode
Default Feedback Level for Skip−Cycle Operation and Standby
Default Feedback Level to Leave Standby
Ratio leave standby Setpoint to skip−cycle Setpoint
Internal Pin 7 Impedance
Pin 7 to Skipping Setpoint ratio
Brown−Out Detection Upper Threshold
Brown−Out Detection Low Threshold
Brown−Out Hysteresis
Thermal Shutdown:
Thermal Shutdown Threshold
Hysteresis
Fault Detection Threshold
(Pin 8 grounded, V
@ V
Detection
pin8
Device
= 2 V, Pin 7 open @ V
pin6
pin8
(For typical values T
> 4.5 V) @ V
= 0.5 V
pin6
pin6
Rating
= 3.5 V and Pin 8 open
pin6
CC
= 3.5 V and Pin 8 open
− V
= 2.4 V
CC
pin1
http://onsemi.com
= 12.5 V
pin6
=0.7 V
J
NCP1239
= 25°C, for min/max values T
= 2.4 V
5
(Pb−Free)
(Pb−Free)
Package
SOIC−16
SOIC−16
SOIC−16
SOIC−16
Pin
10
10
6
6
6
6
6
6
6
8
8
−
1
1
7
7
7
5
5
5
3
J
= 0°C to +125°C, V
1.67
2.85
0.45
0.20
0.20
Min
380
650
4.0
3.9
4.0
0.6
1.5
2.2
60
77
−
−
−
−
−
−
−
−
2500 / Tape & Reel
2500 / Tape & Reel
2500 / Tape & Reel
2500 / Tape & Reel
Shipping
1.80
3.00
0.50
0.24
0.26
Typ
107
400
200
430
740
140
110
4.3
5.2
3.0
3.2
8.0
1.0
1.7
3.0
2.4
95
20
32
30
pin16
†
= 48 V,
Max
1.89
3.20
0.55
0.28
0.30
137
480
810
110
4.6
6.4
1.9
2.6
18
−
−
−
−
−
−
−
−
−
Unit
mA
mV
mV
kW
kW
kW
kW
mA
mA
mA
mA
mA
°C
V
V
V
V
V
V
V
V
−
−
−