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參數資料
| 型號： | NCP1217P65G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩壓器 |
| 英文描述： | Enhanced PWM Current−Mode Controller for High−Power Universal Off−Line Supplies |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 71.5 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數： | 3/18頁 |
| 文件大小： | 249K |
| 代理商： | NCP1217P65G |
NCP1217, NCP1217A
http://onsemi.com
3
Figure 2. Internal Circuit Architecture
Overload
Management
UVLO High and Low
±
500 mA
HV Current
Source
Internal V
CC
8
7
6
5
HV
NC
V
CC
Drv
1
2
3
4
Q FlipFlop
DCmax = 74%
Q
250 ns
L.E.B.
65100133 kHz
Clock
+
+
80 k
20 k
57 k
1 V
Current
Sense
Ground
FB
Adj
24 k
25 k
+
V
REF
Reset
1.1 V
Skip Cycle
Comparator
Set
19 k
Ramp
Compensation
Reset
+
Latchoff
Comparator
+
Latch
Reset
Set
3.1 V
UVLO
1ms SS*
* Available for “A” version only
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Power Supply Voltage on All Other Pins Except Pin 8 (HV), Pin 6 (V
CC
) and Pin 5 (Drv)
0.3 to 10
V
Maximum Voltage on Pin 8 (HV), Pin 6 (V
CC
) Decoupled to Ground with 10 F
V
HV
500
V
Maximum Voltage on Pin 8 (HV), Pin 6 (V
CC
) Grounded
V
HV
450
V
Maximum Current into All Pins Except V
CC
(6) and HV (8) when 10 V ESD Diodes are Activated
5.0
mA
Thermal Resistance, JunctiontoCase
R
JC
57
°
C/W
Thermal Resistance, JunctiontoAir, PDIP7 Version
Thermal Resistance, JunctiontoAir, SO8 Version
R
JA
R
JA
100
178
°
C/W
Maximum Junction Temperature
T
JMAX
150
°
C
Temperature Shutdown
155
°
C
Hysteresis in Shutdown
30
°
C
Storage Temperature Range
60 to +150
°
C
ESD Capability, HBM Model (All Pins Except V
CC
and HV)
2.0
kV
ESD Capability, Machine Model
200
V
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
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