參數(shù)資料
型號(hào): NCP1337PG
廠商: ON SEMICONDUCTOR
元件分類(lèi): 穩(wěn)壓器
英文描述: PWM Current−Mode Controller for Free Running Quasi−Resonant Operation
中文描述: 0.5 A SWITCHING CONTROLLER, 130 kHz SWITCHING FREQ-MAX, PDIP7
封裝: LEAD FREE, PLASTIC, DIP-7
文件頁(yè)數(shù): 3/14頁(yè)
文件大小: 148K
代理商: NCP1337PG
NCP1337
http://onsemi.com
3
Figure 2. Internal Circuit Architecture
+
GND
BO
5 V
+
+
3 V
DISABLE
10 A
Vdd
+
BOK
7.5 s min
period
SStart
Ton
Clk
D
R1
R2
Q
Q
S
Soxyless
demag
detection
DRV
Startup
S
Q
R
V
CC
< 4 V
PERM. LATCH
Vdd
TSD
TSD
Soxyless
8 s
timeout
35 s
max Toff
5.5 s
blanking
Toff
V
CC
Soxyless
V
BO
+
500 mV
OVP
+
SSkip
Skip
Setpoint
+
+
20 kHz
Lowpass
filter
Vdd
FB
3 V
500 mV
FAULT
if Zener
activated
Vdd
Ton
V
BO
70 A x V
BO
35 A
CS
2 p
4 k
350 ns
LEB
CS
comp.
300 s
SoftSkip
SSkip
4 ms
softstart
SStart
PERM.
LATCH
67 s
max Ton
FAULT
Management*
FAULT
(*If FAULT duration > 80 ms = > STOP
Restart when 2nd time VCC = VCCon)
TSD
Inhib
Toff
Ton
+
+
12 V
10 V
5 V
HV
9.5 mA or
600
A
VCC
+
+
OVP
18.6 V
100 mV
130 mV
+
Ton
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