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SG3524N 参数 Datasheet PDF下载

SG3524N图片预览
型号: SG3524N
PDF下载: 下载PDF文件 查看货源
内容描述: 开关电源控制电路 [SMPS control circuit]
分类和应用: 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
文件页数/大小: 5 页 / 130 K
品牌: PHILIPS [ NXP SEMICONDUCTORS ]
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Philips Semiconductors
Product specification
SMPS control circuit
SG3524
DESCRIPTION
This monolithic integrated circuit contains all the control circuitry for
a regulating power supply inverter or switching regulator. Included in
a 16-pin dual-in-line package is the voltage reference, error
amplifier, oscillator, pulse-width modulator, pulse steering flip-flop,
dual alternating output switches and current-limiting and shut-down
circuitry. This device can be used for switching regulators of either
polarity, transformer-coupled DC-to-DC converters, transformerless
voltage doublers and polarity converters, as well as other power
control applications. The SG3524 is designed for commercial
applications of 0°C to +70°C.
PIN CONFIGURATION
D, F, N Packages
INVERT INPUT 1
NON-INV INPUT 2
OSC OUTPUT 3
(+)CL SENSE 4
(–)CL SENSE 5
R
T
6
C
T
7
16 V
REF
15 V
IN
14 EMITTER B
13 COLLECTOR B
12 COLLECTOR A
11 EMITTER A
10 SHUTDOWN
9
TOP VIEW
COMPENSATION
FEATURES
GROUND 8
Complete PWM power control circuitry
Single ended or push-pull outputs
Line and load regulation of 0.2%
1% maximum temperature variation
Total supply current is less than 10mA
Operation beyond 100kHz
ORDERING INFORMATION
DESCRIPTION
16-Pin Plastic Dual In-Line Package (DIP)
16-Pin Ceramic Dual In-Line Package (CERDIP)
16-Pin Small Outline (SO) Package
SL00174
Figure 1. Pin Configuration
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
0 to +70°C
ORDER CODE
SG3524N
SG3524F
SG3524D
DWG #
SOT38-4
0582B
SOT109-1
BLOCK DIAGRAM
V
REF
16
V
IN
15
REF
REG
+5V TO ALL
INTERNAL CIRCUITRY
+5V
OSCILLATOR
3
OUTPUT
FLIP FLOP
12
NOR
11
C
A
+5V
R
T
6
C
T
7
(RAMP)
OSC
+5V
+
COMPARATOR
+5V
ERROR
AMP
+
1k
10
SHUTDOWN
10k
9
COMPENSATION
+5V
+
CL
4
+SENSE
NOR
13
C
B
14 E
B
INV INPUT 1
N.I. INPUT 2
GROUND
8
(SUBSTRATE)
5 –SENSE
SL00175
Figure 2. Block Diagram
1994 Aug 31
1
853-0891 13721