参数资料
型号: TOP256LG
厂商: Power Integrations
文件页数: 5/50页
文件大小: 0K
描述: IC OFFLINE SWIT PROG OVP 7FESIP
标准包装: 48
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): 88W
工作温度: -40°C ~ 150°C
封装/外壳: 7-SIP,6 引线,裸露焊盘,成形引线
供应商设备封装: eSIP-7F
包装: 管件
TOP252-262
CONTROL (C)
Z C
V C
0
1
INTERNAL
SUPPLY
DRAIN (D)
-
EXTERNAL
CURRENT
LIMIT (X)
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.8 V
I FB
VI (LIMIT)
CURRENT
LIMIT
ADJUST
ON/OFF
V BG + V T
+
5.8 V
4.8 V
INTERNAL UV
COMPARATOR
SOFT START
√ 16
SHUTDOWN/
AUTO-RESTART
K PS(UPPER)
K PS(LOWER)
CURRENT LIMIT
COMPARATOR
-
+
-
+
-
+
DC MAX
VOLTAGE
MONITOR (V)
FREQUENCY
(F)
1V
V
LINE
SENSE
OVP OV/
UV
DC MAX
STOP LOGIC
STOP SOFT
START
OSCILLATOR
WITH JITTER
66k/132k
F REDUCTION
F REDUCTION
D MAX
CLOCK
HYSTERETIC
THERMAL
SHUTDOWN
S
R
Q
SOURCE (S)
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
K PS(UPPER)
K PS(LOWER)
SOFT START
I FB
I PS(UPPER)
I PS(LOWER)
PWM
OFF
SOURCE (S)
PI-4511-082907
Figure 3c. Functional Block Diagram (TOP254-258 YN Package and all eSIP Packages).
CONTROL (C)
Z C
V C
0
1
INTERNAL
SUPPLY
DRAIN (D)
-
EXTERNAL
CURRENT
LIMIT (X)
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.8 V
I FB
VI (LIMIT)
CURRENT
LIMIT
ADJUST
ON/OFF
V BG + V T
+
5.8 V
4.8 V
INTERNAL UV
COMPARATOR
SOFT START
√ 16
SHUTDOWN/
AUTO-RESTART
K PS(UPPER)
K PS(LOWER)
CURRENT LIMIT
COMPARATOR
-
+
-
+
-
+
VOLTAGE
MONITOR (V)
1V
V
LINE
SENSE
OVP OV/
UV
DC MAX
STOP LOGIC
DC MAX
STOP SOFT
START
OSCILLATOR
WITH JITTER
D MAX
CLOCK
HYSTERETIC
THERMAL
SHUTDOWN
SOURCE (S)
CONTROLLED
TURN-ON
GATE DRIVER
F REDUCTION
S
R
Q
LEADING
EDGE
BLANKING
SOURCE (S)
F REDUCTION
K PS(UPPER)
K PS(LOWER)
SOFT START
I FB
I PS(UPPER)
I PS(LOWER)
PWM
OFF
PI-4974-122607
SIGNAL
GROUND (G)
Figure 3d. Functional Block Diagram TOP259YN, TOP260YN, TOP261YN.
5
www.powerint.com
Rev. H 06/13
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