NCP1381 ONSEMI [ON Semiconductor], NCP1381 Datasheet - Page 5

• Manufacturer Part Number: NCP1381
• Description: Low−Standby High Performance PWM Controller
• Manufacturer: ONSEMI [ON Semiconductor]

ELECTRICAL CHARACTERISTICS
(For typical values T
CURRENT COMPARATOR
GO−TO−STANDBY
DEMAGNETIZATION DETECTION BLOCK
FEEDBACK SECTION
PROTECTIONS
T
Hyst_ratio
ADJ_GTS
V
T
Symbol
V
VBO
DELLATCH
TSD
Max
V
VBO
sw−(min)
R
T
T
latchdem
R
T
V
zenlatch
S
R
V
T
I
VC
timfault
I
VC
C
I
R
T
Ref
timer
V
blank
delay
samp
I
hyst
V
down
ratio
I
latch
GTS
dem
BO
skip
skip
skip
ref
par
SD
up
th
H
tON
high
hyst
H
L
low
Typical Internal Soft−start period when Leaving Skip
Pin 11 Output Impedance (or R
is Closed)
Skip Adjustment Output Impedance
Default Skip Cycle Level
Ratio Between the Skip Level and the Skip Comparator Hysteresis
Threshold of the ADJ_GTS Comparator
Internal Current Source that Creates an Adjustable Hysteresis to the
ADJ_GTS Comparator
Input Threshold Voltage (V
Hysteresis (V
Input Clamp Voltage
High State (I
Low State (I
DMG Propagation Delay
Internal Input Capacitance at V
Internal Pulldown Resistor
Internal Blanking Delay after T
Frequency Clamp, Minimum (T
Internal Pullup Resistor
Pin 6 to Current Setpoint Division Ratio (Maximum V
Voltage Reference, I
Reference Maximum Output Current
V
Maximum On Time Duration
Timer Charging Current
Timer Fault Validation Level
Timeout Before Validating Short−circuit or GTS, C
Latching Level On the Demagnetization Input
Sampling Time for V
Latchoff Level On the Skip Adjustment Pin
Propagation Delay from Latch Detected to Gate Turned Off (Pin 9
Loaded by 1 nF)
Brown−out Level High
Brown−out Level Low
Brown−out Pin Input Bias Current
Temperature Shutdown, Maximum Value
Hysteresis While in Temperature Shutdown
CC
Limitation in Latched Fault Mode
J
= 25°C, for min/max values T
pin
pin
pin
3 = −3.0 mA)
3 = 3.0 mA)
3 Increasing)
latchdem
load
= 1 mA
pin
Detection after the End of the T
3 Decreasing)
ON
dson
pin
ON
Rating
3 = 1 V
+ T
between Pin 10 and Pin 11 when SW
OFF
J
= 0°C to +125°C, V
)
http://onsemi.com
NCP1381
t
= 0.22 mF
FB
5
= 5 V)
CC
ON
= 12 V unless otherwise noted)
Pin
12
12
10
11
−
5
5
−
1
1
3
3
3
3
3
3
3
3
−
6
−
9
4
4
−
3
3
5
−
2
2
2
−
−
−0.9
4.75
3.15
0.45
0.21
Min
100
220
140
4.0
7.0
7.5
7.0
3.5
3.7
17
30
20
10
−
−
−
−
9
−
−
−
−
−
−
−
−
−
−
−
−0.7
0.24
0.04
Typ
175
800
250
200
220
3.4
5.0
3.5
8.0
4.0
5.0
6.0
4.0
4.1
4.0
3.5
0.5
15
25
50
30
10
10
30
10
45
10
90
30
−
−
0.275
Max
−0.5
12.5
5.25
3.85
0.55
250
280
6.0
9.0
4.5
4.5
35
80
12
45
13
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Unit
mV
mV
mV
mV
k
mA
kW
kW
ms
mA
pF
mA
mA
°C
°C
ms
ns
ms
ms
ms
ms
ns
W
V
V
V
V
V
V
V
V
V
−
W