參數(shù)資料
型號(hào)： SG3524N
廠(chǎng)商： NXP SEMICONDUCTORS
元件分類(lèi)： 穩(wěn)壓器
英文描述： SMPS control circuit
中文描述： 0.1 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP16
封裝： PLASTIC, SOT-38-4, DIP-16
文件頁(yè)數(shù)： 3/5頁(yè)
文件大?。?/td> 125K
代理商： SG3524N
Philips Semiconductors
Product specification
SG3524
SMPS control circuit
1994 Aug 31
3
DC ELECTRICAL CHARACTERISTICS
(Continued)
T
A
= 0
°
C to +70
°
C, V
IN
= 20V, and f = 20kHz, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
Typ
UNIT
Min
Max
Output section
(each output)
Collector-emitter voltage (breakdown)
Collector-leakage current
Saturation voltage
Emitter output voltage
t
R
Rise time
t
F
Fall time
Total standby current
(excluding oscillator charging current,
error and current limit dividers, and
with outputs open)
40
V
μ
A
V
V
μ
s
μ
s
V
CE
=40V
I
C
=50mA
V
IN
=20V
R
C
=2k
, T
A
=25
°
C
R
C
=2k
, T
A
=25
°
C
0.1
1
18
0.2
0.1
50
2
17
V
IN
=40V
8
10
mA
THEORY OF OPERATION
Voltage Reference
An internal series regulator provides a nominal 5V output which is
used both to generate a reference voltage and is the regulated
source for all the internal timing and controlling circuitry. This
regulator may be bypassed for operation from a fixed 5V supply by
connecting Pins 15 and 16 together to the input voltage. In this
configuration, the maximum input voltage is 6.0V.
This reference regulator may be used as a 5V source for other
circuitry. It will provide up to 50mA of current itself and can easily be
expanded to higher currents with an external PNP as shown in
Figure 3.
I
to 1.0A
DEPENDING
ON CHOICE
V
REF
Q1
100
+V
IN
10
μ
F
+
GND
15
16
8
SG3524
REFERENCE
SECTION
SL00176
Figure 3. Expanded Reference Current Capability
TEST CIRCUIT
OSC OUT
2k
2k
OUTPUTS
12
13
11
14
5
4
10
9
1
2
7
6
8
16
3
15
SG3524
RAMP
N.I.
INPUT
INV.
INPUT
COMP
SHUT
DOWN
CURRENT
LIMIT
V
IN
8–40V
0.1
R
T
C
T
2k
10k
2k
10k
1k
V
REF
I
S
V
IN
SL00177
Figure 4. Test Circuit
相關(guān)PDF資料
PDF描述
SG3524D SMPS control circuit
SG3524 SMPS control circuit(SMPS控制電路)
SG3524Y REGULATING PULSE-WIDTH MODULATORS
SG3524J REGULATING PULSE WIDTH MODULATOR
SG3524N REGULATING PULSE WIDTH MODULATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SG3524N 制造商:STMicroelectronics 功能描述:IC PWM CONTROLLER 3524 DIP16
SG3524N 制造商:Texas Instruments 功能描述:IC PWM CONTROLLER 3524 DIP16
SG3524NE4 功能描述:電壓模式 PWM 控制器 Regulating Pulse Width Modulator RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
SG3524NS 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:REGULATING PULSE-WIDTH MODULATORS
SG3524NSR 功能描述:電壓模式 PWM 控制器 Regulating Pulse Width Modulator RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開(kāi)關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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