NCP1361, NCP1366
www.onsemi.com
7
ELECTRICAL CHARACTERISTICS: (V
CC
= 12 V, C
DRV
= 1 nF, For typical values T
J
= 25°C, for min/max values T
J
= −40°C to
+125°C, Max T
J
= 150°C, unless otherwise noted)
Characteristics UnitMaxTypMinSymbolConditions
REGULATION BLOCK
Maximum Operating Frequency
Option
Option
f
MAX
−
75
103
No
Clamp
80
110
−
85
117
N/A
kHz
kHz
DEMAGNETIZATION INPUT − ZERO VOLTAGE DETECTION CIRCUIT and VOLTAGE SENSE
V
ZCD
threshold voltage V
ZCD
decreasing V
ZCD(TH)
25 45 65 mV
V
ZCD
Hysteresis V
ZCD
increasing V
ZCD(HYS)
15 30 45 mV
Threshold voltage for output
short circuit or aux. winding
short circuit detection
After t
BLANK_ZCD
if V
ZCD
< V
ZCD(short)
Ù Latched
V
ZCD(short)
30 50 70 mV
Propagation Delay from valley
detection to DRV high
V
ZCD
decreasing from 4 V to 0 V t
DEM
− − 170 ns
Delay after on−time that the
V
s
/ZCD is still pulled to ground
(Note 4) t
short_ZCD
− 0.7 −
ms
Blanking delay after on−time
(V
s
/ZCD pin is disconnected
from the internal circuitry)
t
blank_ZCD
1.2 1.5 1.8
ms
Timeout after last
demagnetization transition
Timeout while in Soft−start
Timeout after soft−start complete
t
outSS
t
out
36
4.5
44
5.5
52
6.5
ms
Input leakage current V
CC
> V
CC(on)
V
ZCD
= 4 V, DRV is low I
ZCD
− − 0.1
mA
DRIVE OUTPUT − GATE DRIVE
Drive resistance
DRV Sink
DRV Source
R
SNK
R
SRC
−
−
7
12
−
−
W
Rise time C
DRV
= 1 nF, from 10% to 90% t
r
− 45 80 ns
Fall time C
DRV
= 1 nF, from 90% to 10% t
f
− 30 60 ns
DRV Low voltage V
CC
= V
CC(off)
+ 0.2 V,
C
DRV
= 220 pF, R
DRV
= 33 kW
V
DRV(low)
6.0 − − V
DRV High voltage V
CC
= V
CC(OVP)
−0.2 V
,
C
DRV
= 220 pF,
R
DRV
= 33 kW
V
DRV(high)
− − 13.0 V
SOFT START
Internal Fixed Soft Start
Duration
Current Sense peak current rising from
0.2 V to 0.8 V
t
SS
3 4 5 ms
FAULT PROTECTION
Thermal Shutdown
Device switching (F
sw
∼ 65 kHz)
(Note 4)
T
SHTDN
− 150 − °C
Thermal Shutdown Hysteresis Device switching (F
sw
∼ 65 kHz)
(Note 4)
T
SHTDN(HYS)
− 40 − °C
Number of Drive cycle before
latch confirmation
V
Comp
= V
Comp(max)
,
V
CS
> V
CS(stop)
Or Internal sampled V
out
> V
OVP
T
latch_count
− 4 − −
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
3. The timer can be reset if there are 4 DRV cycles without overload or short circuit conditions
4. Guaranteed by Design.
* Characterization upon request
