参数资料
型号: TOP257MG
厂商: Power Integrations
文件页数: 12/50页
文件大小: 0K
描述: IC OFFLINE SWIT PROG OVP 10CSDIP
标准包装: 50
输出隔离: 隔离
频率范围: 59.4kHz ~ 72.6kHz
输出电压: 700V
功率(瓦特): 41W
工作温度: -40°C ~ 150°C
封装/外壳: 10-SDIP(0.300",7.62mm),9 引线
供应商设备封装: SDIP-10C
包装: 管件
其它名称: 596-1334-5
TOP252-262
M Pin
X Pin
V Pin
I REM(N)
I UV
I OV
I OV(LS)
(Enabled)
Output
MOSFET
Switching
(Disabled)
Disabled when supply
output goes out of
regulation
(Non-Latching)
(Latching)
I
I LIMIT (Default)
Current
Limit
I
DC MAX (78%)
Maximum
Duty Cycle
I
V BG
Pin Voltage
-250
-200
-150
-100
-50
0
25
50
75
100
125
336
I
X and V Pins (Y, E, L and M Packages) and M Pin (P and G Packages) Current ( μ A)
Note: This figure provides idealized functional characteristics with typical performance values. Please refer to the parametric
table and typical performance characteristics sections of the data sheet for measured data. For a detailed description of
each functional pin operation refer to the Functional Description section of the data sheet.
PI-4646-071708
Figure 12. MULTI-FUNCTION (P and G package). VOLTAGE MONITOR and EXTERNAL CURRENT LIMIT (Y, E/L and M package) Pin Characteristics.
The circuit examples shown in Figures 41, 42 and 43 show a
simple method for implementing the primary sensed over-
voltage protection.
During a fault condition resulting from loss of feedback, output
voltage will rapidly rise above the nominal voltage. The increase
in output voltage will also result in an increase in the voltage at
the output of the bias winding. A voltage at the output of the
bias winding that exceeds of the sum of the voltage rating of the
Zener diode connected from the bias winding output to the
V-pin (or M-pin) and V-pin (or M-pin) voltage, will cause a current
in excess of I V or I M to be injected into the V-pin
(or M-pin), which will trigger the OVP feature.
The primary sensed OVP protection circuit shown in Figures 41,
42 and 43 is triggered by a significant rise in output voltage (and
therefore bias winding voltage). If the power supply is operating
under heavy load or low input line conditions when an open
loop occurs, the output voltage may not rise significantly.
Under these conditions, a latching shutdown will not occur until
load or line conditions change. Nevertheless, the operation
provides the desired protection by preventing significant rise in
the output voltage when the line or load conditions do change.
Primary side OVP protection with the TOPSwitch-HX in a typical
application will prevent a nominal 12 V output from rising above
approximately 20 V under open loop conditions. If greater
accuracy is required, a secondary sensed OVP circuit is
recommended.
12
Rev. H 06/13
www.powerint.com
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TOP257MN 功能描述:交流/直流开关转换器 Off-Line Switcher IC 30W/78W PK 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
TOP257PG 功能描述:交流/直流开关转换器 30W/45W PK 85-264VAC 41W/70W PK (230V AC) 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
TOP257PN 功能描述:交流/直流开关转换器 Off-Line Switcher IC 30W/45W PK 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
TOP257YN 功能描述:交流/直流开关转换器 Off-Line Switcher IC 119W 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
TOP258EG 功能描述:交流/直流开关转换器 148W (85-264VAC) 195W (230V AC) 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