ncp1282 ON Semiconductor, ncp1282 Datasheet - Page 8
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ncp1282
Manufacturer Part Number
ncp1282
Description
High-performance Active Clamp/reset Pwm Controller Featuring Hv Start-up
Manufacturer
ON Semiconductor
Datasheet
1.NCP1282.pdf
(22 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ncp1282BDR2G
Manufacturer:
ON/安森美
Quantity:
20 000
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
12
11
10
0
9
8
7
6
5
4
3
2
-50
-50
Figure 4. Startup Current vs. Junction Temperature
Figure 2. Startup Circuit Inhibit Voltage Threshold
-25
-25
V
T
V
T
AUX
J
AUX
J
, JUNCTION TEMPERATURE (°C)
, JUNCTION TEMPERATURE (°C)
0
vs. Junction Temperature
0
= V
= V
AUX(on)
inhibit
25
25
+ 0.2 V
- 0.2 V
50
50
100
90
80
70
60
50
40
30
20
10
0
75
0
75
V
AUX
50
Figure 6. Startup Circuit Leakage Current
100
V
100
in
= 12 V
100
= 48 V
125
125
150
http://onsemi.com
V
in
vs. Input Voltage
, INPUT VOLTAGE (V)
150
200
NCP1282
150
8
250
12.0
10.5
10.0
11.5
11.0
9.5
9.0
8.5
8.0
7.5
7.0
10
300
9
8
7
6
5
4
3
2
1
0
-50
0
Figure 3. Auxiliary Supply Voltage Thresholds
350
Figure 5. Startup Current vs. Supply Voltage
-25
T
T
400
T
2
J
J
J
T
= -40°C
= 125°C
= 25°C
J
, JUNCTION TEMPERATURE (°C)
0
450 500
vs. Junction Temperature
V
AUX
4
, SUPPLY VOLTAGE (V)
25
V
V
V
AUX(off1)
AUX(off2)
AUX(on)
50
6
75
8
100
V
T
in
J
= 25°C
= 48 V
10
125
150
12