参数资料
型号: NE5560
厂商: NXP Semiconductors N.V.
英文描述: Switched-mode power supply control circuit
中文描述: 开关电源控制电路
文件页数: 9/16页
文件大小: 240K
代理商: NE5560
Philips Semiconductors
Product specification
NE/SE5560
Switched-mode power supply control circuit
1994 Aug 31
2
BLOCK DIAGRAM
NOTE:
1. See Voltage/Current fed supply characteristic curve.
FEED
FORWARD
EXTERNAL
SYNC INPUT
DEMAGNETIZATION
OVER-VOLTAGE PROTECTION
REFERENCE
VOLTAGE
SAWTOOTH
GENERATOR
FEEDBACK
VOLTAGE
GAIN ADJUST
MODULATOR
INPUT
CUTY CYCLE
CONTROL
CURRENT
LIMITING
+
0.48V
0.6V
+
0.6V
0.48V
+
+
+
PULSE WIDTH
MODULATOR
+
0.6V
S
R
LATCH
Q
R
S
START
STOP
REMOTE
ON/OFF
STABILIZED
SUPPLY
+
0.6V
3
4
5
8
11
10
1
12
2
14
15
13
9
8
7
16
OUTPUTS
CT
RT
VZ
VCC
1k
100
OC1
Q1
+
VCC
SL00361
Figure 2. Block Diagram
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