NCP1339
www.onsemi.com
6
ELECTRICAL CHARACTERISTICS (V
CC
= 12 V, V
HV
= 120 V, V
Fault
= open, V
FB
= 3 V, V
CS
= 0 V, V
ZCD
= 0 V, C
VCC
= 100 nF ,
C
DRV
= 1 nF, for typical values T
J
= 25°C, for min/max values, T
J
is – 40°C to 125°C, unless otherwise noted)
Characteristics
Conditions Symbol Min Typ Max Unit
STARTUP AND SUPPLY CIRCUITS
Supply Voltage
Startup Threshold
Minimum Operating Voltage
Operating Hysteresis
Transition from I
start1
to I
start2
dV/dt = 0.1 V/ms
V
CC
increasing
V
CC
decreasing
V
CC(on)
− V
CC(off)
V
CC
increasing, I
HV
= 650 mA
V
CC(on)
V
CC(off)
V
CC(inhibit)
14.0
8.0
5.6
0.55
15.0
9.0
−
1.00
16.0
10.0
−
1.20
V
Blanking Duration After V
CC(off)
V
CC
above V
CC(reset)
t
UVLO(blank)
2 – 15
ms
Startup Delay Delay from V
CC(on)
to QR Enable t
delay(start)
– – 725
ms
Minimum voltage for current source
operation
VHV
min
− 30 60 V
Current flowing out of V
cc
V
cc
= 0 V IC1 −0.8 −0.5 −0.3 mA
Current flowing out of V
cc
pin V
cc
= V
cc(on)
– 0.5 V IC2 −15 −10 −6 mA
Off−state leakage current V
HV
= 500 V, V
cc
= 15 V, V
REM
= 0 V I
leak1
− − 25.5
mA
HV pin leakage current when PSM is active V
HV
= 141 V I
leak2
− − 11
mA
HV pin leakage current when PSM is active V
HV
= 325 V I
leak3
− − 18
mA
V
cc
level during a fault V
CC(bias)
4.7 5.5 6.3 V
Supply Current
Before Startup, Fault or Latch
Flyback in Skip
switching at 70 kHz
V
CC
= V
CC(on)
– 0.5 V
V
FB
= 0.35 V
C
DRV
open
I
CC2
I
CC3
0.05
0.2
1.0
0.10
0.68
1.6
0.54
1.0
3.0
mA
V
CC
Overvoltage Protection Threshold V
CC(OVP)
27 28 29.5 V
V
CC
Overvoltage Protection Delay t
delay(VCC_OVP)
22.5 30.0 37.5
ms
INPUT FILTER DISCHARGE
X2 timer disable switch threshold voltage
V
th_X2
1.0 1.5 2.0 V
Hysteresis on the X2 pin V
th_X2_hyst
− 150 − mV
X2 input clamp voltage V
_X2_clamp
− 4 − V
X2 timer duration X2_timer 50 − 170 ms
X2 input leakage current V
X2
= 2.5 V I
_X2_leak
− − 0.3
mA
Maximum discharge switch current V
CC
= 10V I
_X2_dis
7 10 14 mA
REMOTE INPUT – POWER SAVINGS MODE
Remote pin voltage below which PSM is
deactivated
V
REM
increasing V_REM_on 1 1.5 2 V
Remote pin voltage above which PSM is
activated
V
REM
decreasing V_REM_off 7.2 8 8.8 V
Remote input leakage current V_REM = 10 V I_REM_leak − 20 1000 nA
Remote timer duration REM_timer 50 − 170 ms
Resistance of the Remote Pin Internal
pull−down Switch
R_SW_REM 1000 − 3000
W
BROWN OUT DETECTION
Brown−Out Start Level
HV pin voltage increasing V
BO(start)
90 101 110 V
System Shutdown Threshold HV pin voltage decreasing V
BO(stop)
84 93 104 V
Brown−out Detection Blanking Time V
HV
decreasing, delay from
V
BO(stop)
to drive disable
t
BO(stop)
30 − 100 ms
GATE DRIVE
Rise Time (10−90%)
V
DRV
from 10 to 90% t
DRV(rise)
– 40 80 ns
