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参数资料
| 型号： | TNY278PG |
| 厂商： | Power Integrations |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT OVP OTP HV 8DIP |
| 标准包装： | 50 |
| 输出隔离： | 隔离 |
| 频率范围： | 124kHz ~ 140kHz |
| 输出电压： | 700V |
| 功率（瓦特）： | 28W |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm），7 引线 |
| 供应商设备封装： | DIP-8B |
| 包装： | 管件 |
| 相关产品： | 732-2250-ND - TRANS OFF LINE POWER PI TNY278 |
| 其它名称： | 596-1318-5 |
TNY274-280
At near maximum load, TinySwitch-III will conduct during nearly
all of its clock cycles (Figure 6). At slightly lower load, it will
“skip” additional cycles in order to maintain voltage regulation at
the power supply output (Figure 7). At medium loads, cycles
will be skipped and the current limit will be reduced (Figure 8).
At very light loads, the current limit will be reduced even further
200
(Figure 9). Only a small percentage of cycles will occur to satisfy
the power consumption of the power supply.
The response time of the ON/OFF control scheme is very fast
compared to PWM control. This provides tight regulation and
excellent transient response.
200
100
V
DC-INPUT
100
V
DC-INPUT
0
10
0
10
5
V
BYPASS
5
V
BYPASS
0
400
0
400
200
V
DRAIN
200
V
DRAIN
0
0
0
1
2
0
1
2
Time (ms)
Figure 10. Power Up with Optional External UV Resistor (4 M Ω )
Connected to EN/UV Pin.
200
Time (ms)
Figure 11. Power Up Without Optional External UV Resistor
Connected to EN/UV Pin.
200
100
V
DC-INPUT
100
V
DC-INPUT
0
400
300
0
400
300
200
V
DRAIN
200
V
DRAIN
100
0
100
0
0
.5
1
0
2.5
5
Time (s)
Figure 12. Normal Power Down Timing (without UV).
Time (s)
Figure 13. Slow Power Down Timing with Optional External (4 M Ω ) UV Resistor
Connected to EN/UV Pin.
6
Rev. I 01/09
www.powerint.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TNY278PN | 功能描述:交流/直流开关转换器 21.5W 85-265 VAC 28W/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
| TNY278PN-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range |
| TNY278PTL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range |
| TNY279G | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Energy Efficient, Off-Line Switcher with Enhanced Flexibility and Extended Power Range |
| TNY279GN | 功能描述:交流/直流开关转换器 25W 85-265 VAC 32W/230 VAC RoHS:否 制造商:STMicroelectronics 输出电压:800 V 输入/电源电压（最大值）:23.5 V 输入/电源电压（最小值）:11.5 V 开关频率:115 kHz 电源电流:1.6 mA 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:SSO-10 封装:Reel |
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