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參數(shù)資料
| 型號： | SG3525ANG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Pulse Width Modulator Control Circuit |
| 中文描述： | 0.5 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | LEAD FREE, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 155K |
| 代理商： | SG3525ANG |
SG3525A
http://onsemi.com
7
Figure 9. Output Circuit
(1/2 Circuit Shown)
Figure 10. SingleEnded Supply
Figure 11. PushPull Configuration
Figure 12. Driving Power FETS
Low power transformers can be driven directly by the SG3525A.
Automatic reset occurs during deadtime, when both ends of the
primary winding are switched to ground.
Q1
R1
R2
13
To Output Filter
11
14
12
V
C
SG3525A
A
B
GND
+
V
supply
For singleended supplies, the driver outputs are grounded.
The V
C
terminal is switched to ground by the totempole
source transistors on alternate oscillator cycles.
In conventional pushpull bipolar designs, forward base drive is
controlled by R1R3. Rapid turnoff times for the power devices
are achieved with speedup capacitors C1 and C2.
V
C
SG3525A
A
B
GND
+V
supply
R1
13
12
11
14
R3
C2
C1
Q1
Q2
T1
R2
The low source impedance of the output drivers provides
rapid charging of power FET input capacitance while
minimizing external components.
+
V
supply
V
C
SG3525A
A
B
GND
11
14
Q1
Q2
T1
R1
13
12
V
C
SG3525A
A
B
GND
13
11
14
12
+V
supply
T1
Q1
Q2
R2
R1
T2
C1
C2
Figure 13. Driving Transformers in a
HalfBridge Configuration
Q3
V
CC
Q5
Q4
Q7
Q9
Q10
13
V
C
V
ref
Q1
Q2
Q6 Omitted
in SG3527A
5.0k
10k
10k
2.0k
Q11
Q6
Q8
5.0k
11, 14
Output
Clock
F/F
PWM
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SG3525A | Pulse Width Modulator Control Circuit(脈寬調(diào)制器控制電路) |
| SG3526 | PULSE WIDTH MODULATION CONTROL CIRCUIT |
| SG3526 | PULSE WIDTH MODULATION CONTROL CIRCUIT |
| SG3526N | PULSE WIDTH MODULATION CONTROL CIRCUIT |
| SG3526 | REGULATING PULSE WIDTH MODULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SG3525ANG | 制造商:ON Semiconductor 功能描述:DC/DC Converter IC |
| SG3525AP | 功能描述:電壓模式 PWM 控制器 Voltage Mode w/Sync 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 |
| SG3525AP013TR | 功能描述:電壓模式 PWM 控制器 Voltage Mode w/Sync 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 |
| SG3525AP13TR | 制造商:STMicroelectronics 功能描述:REGULATING PULSE WIDTH MODULATOR - Tape and Reel |
| SG3526 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:REGULATING PULSE WIDTH MODULATOR |
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