参数资料
型号: TOP257MN
厂商: Power Integrations
文件页数: 16/50页
文件大小: 0K
描述: IC OFFLINE SWIT PROG OVP 10CSDIP
产品培训模块: TOPSwitch® HX General Introduction
标准包装: 50
系列: TOPSwitch®-HX
输出隔离: 隔离
频率范围: 119kHz ~ 145kHz
输出电压: 700V
功率(瓦特): 119W
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
产品目录页面: 1204 (CN2011-ZH PDF)
配用: 596-1193-ND - KIT REF DESIGN TOP HX FOR TOP258
其它名称: 596-1187-5
TOP252-262
Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
+
TOP252-258M
D
C
X
V
TOP254-258Y
+
TOP259-261Y
DC
Input
Voltage
D
S
S
S
S
S
S C
VXCS F
D
DC
Input
Voltage
VXCSG
D
D
V
D
V
CONTROL
C
C
S D
CONTROL
C
CS
D
-
S
X
F
-
S
X
G
PI-4716-020508
Figure 16a. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin) for TOP254-258 Y Packages.
PI-4984-020708
Figure 16b. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
CURRENT LIMIT Features Disabled for TOP259-261 Y Packages.
+
eSIP L Package
eSIP E Package
+
V UV = I UV × R LS + V V (I V = I UV )
V OV = I OV × R LS + V V (I V = I OV )
DC
Input
Voltage
VXC F S D
C S D
VXC F S D
C S D
DC
Input
Voltage
R LS
4 M ?
For R LS = 4 M ?
V UV = 102.8 VDC
V OV = 451 VDC
DC MAX @100 VDC = 76%
DC MAX @375 VDC = 41%
D
V
D
V
CONTROL
C
CONTROL
C
-
S
X
F
-
S
PI-4956-071708
Figure 16c. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin) for TOP252-262 L and E Packages.
PI-4717-120307
Figure 17. Line-Sensing for Undervoltage, Overvoltage and Line Feed-Forward.
+
DC
Input
Voltage
D
R LS
4 M ?
V
V UV = I UV × R LS + V V (I V = I UV )
V OV = I OV × R LS + V V (I V = I OV )
For R LS = 4 M ?
V UV = 102.8 VDC
V OV = 451 VDC
Sense Output Voltage
DC MAX @ 100 VDC = 76%
DC MAX @ 375 VDC = 41%
+
DC
Input
Voltage
D
R LS
4 M ?
VR OVP
V
V UV = I UV × R LS + V V (I V = I UV )
V OV = I OV × R LS + V V (I V = I OV )
For R LS = 4 M ?
V UV = 102.8 VDC
V OV = 451 VDC
Sense Output Voltage
R OVP
DC MAX @ 100 VDC = 76%
DC MAX @ 375 VDC = 41%
Reset
10 k ?
Q R
CONTROL
C
CONTROL
C
R OVP >3k ?
-
S
-
S
PI-4756-121007
Figure 18. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Latched Output Overvoltage Protection.
16
Rev. H 06/13
PI-4719-120307
Figure 19. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Hysteretic Output Overvoltage Protection.
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