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參數(shù)資料
| 型號： | SG3524 |
| 廠商： | Microsemi Corporation |
| 英文描述： | REGULATING PULSE WIDTH MODULATOR |
| 中文描述： | 調(diào)控脈寬調(diào)制器 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 125K |
| 代理商： | SG3524 |
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
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| SG3524D | REGULATING PULSE WIDTH MODULATOR |
| SG3524J | Regulating Pulse Width Modulator |
| SG3524N | Regulating Pulse Width Modulator |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG3524B | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:REGULATING PULSE WIDTH MODULATOR |
| SG3524BDW | 功能描述:IC REG CTRLR BUCK PWM VM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
| SG3524BDW-TR | 制造商:Microsemi Corporation 功能描述:Voltage Mode PWM Controller 19V 100mA 16-Pin SOWB T/R |
| SG3524BJ | 制造商:Microsemi Corporation 功能描述:SG3524BJ - Bulk |
| SG3524BN | 制造商:Microsemi Corporation 功能描述:Voltage Mode PWM Controller 19V 100mA 16-Pin PDIP 制造商:Microsemi Corporation 功能描述:VOLT MODE PWM CNTRLR 19V 100MA 16PDIP - Rail/Tube 制造商:Microsemi 功能描述:Voltage Mode PWM Controller 19V 100mA 16-Pin PDIP |
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