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参数资料
| 型号： | SG3525ADWG |
| 厂商： | ON Semiconductor |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR PWM VM 16-SOIC |
| 产品变化通告： | Product Discontinuation 27/Jan/2012 |
| 标准包装： | 47 |
| PWM 型： | 电压模式 |
| 输出数： | 2 |
| 频率 - 最大： | 400kHz |
| 占空比： | 49% |
| 电源电压： | 8 V ~ 35 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 包装： | 管件 |
SG3525A
MAXIMUM RATINGS
Rating
Supply Voltage
Collector Supply Voltage
Logic Inputs
Analog Inputs
Output Current, Source or Sink
Reference Output Current
Oscillator Charging Current
Power Dissipation
T A = +25 ° C (Note 1)
T C = +25 ° C (Note 2)
Thermal Resistance, Junction?to?Air
Thermal Resistance, Junction?to?Case
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
Symbol
V CC
V C
I O
I ref
P D
R q JA
R q JC
T J
T stg
T Solder
Value
+40
+40
?0.3 to +5.5
?0.3 to V CC
± 500
50
5.0
1000
2000
100
60
+150
?55 to +125
+300
Unit
Vdc
Vdc
V
V
mA
mA
mA
mW
° C/W
° C/W
° C
° C
° C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. Derate at 10 mW/ ° C for ambient temperatures above +50 ° C.
2. Derate at 16 mW/ ° C for case temperatures above +25 ° C.
RECOMMENDED OPERATING CONDITIONS
Characteristics
Supply Voltage
Collector Supply Voltage
Output Sink/Source Current
(Steady State)
(Peak)
Reference Load Current
Oscillator Frequency Range
Oscillator Timing Resistor
Oscillator Timing Capacitor
Deadtime Resistor Range
Operating Ambient Temperature Range
Symbol
V CC
V C
I O
I ref
f osc
R T
C T
R D
T A
Min
8.0
4.5
0
0
0
0.1
2.0
0.001
0
0
Max
35
35
± 100
± 400
20
400
150
0.2
500
+70
Unit
Vdc
Vdc
mA
mA
kHz
k W
m F
W
° C
APPLICATION INFORMATION
Shutdown Options (See Block Diagram, page 2)
Since both the compensation and soft?start terminals
(Pins 9 and 8) have current source pull?ups, either can
readily accept a pull?down signal which only has to sink a
maximum of 100 m A to turn off the outputs. This is subject
to the added requirement of discharging whatever external
capacitance may be attached to these pins.
An alternate approach is the use of the shutdown circuitry
of Pin 10 which has been improved to enhance the available
shutdown options. Activating this circuit by applying a
positive signal on Pin 10 performs two functions: the PWM
latch is immediately set providing the fastest turn?off signal
to the outputs; and a 150 m A current sink begins to discharge
the external soft?start capacitor. If the shutdown command
is short, the PWM signal is terminated without significant
discharge of the soft?start capacitor, thus, allowing, for
example, a convenient implementation of pulse?by?pulse
current limiting. Holding Pin 10 high for a longer duration,
however, will ultimately discharge this external capacitor,
recycling slow turn?on upon release.
Pin 10 should not be left floating as noise pickup could
conceivably interrupt normal operation.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SG3525ADWR2 | 功能描述:电压模式 PWM 控制器 8-35V PWM RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| SG3525ADWR2G | 功能描述:电压模式 PWM 控制器 8-35V PWM RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| SG3525ADWR2G-CUT TAPE | 制造商:ON 功能描述:SC Series 20 mA 400 kHz Surface Mount PWM Control Circuit - SOIC-16L |
| SG3525AJ | 制造商:Microsemi Corporation 功能描述:SG3525AJ - Bulk |
| SG3525AN | 功能描述:电压模式 PWM 控制器 Voltage Mode w/Sync RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
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