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TOP264KG 数据表(PDF) 13 Page - Power Integrations, Inc.

部件名 TOP264KG
功能描述  Integrated Off-Line Switcher with EcoSmart™ Technology for Highly Efficient Power Supplies
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  POWERINT [Power Integrations, Inc.]
网页  http://www.powerint.com
标志 POWERINT - Power Integrations, Inc.

TOP264KG 数据表(HTML) 13 Page - Power Integrations, Inc.

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Rev. F 05/15
13
TOP264-271
www.power.com
Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
PI-4717-120307
DC
Input
Voltage
+
-
D
S
C
CONTROL
V
4 M
Ω
R
LS
VUV = IUV × RLS + VV (IV = IUV)
VOV = IOV × RLS + VV (IV = IOV)
For RLS = 4 MΩ
VUV = 102.8 VDC
VOV = 451 VDC
DCMAX@100 VDC = 76%
DCMAX@375 VDC = 41%
PI-4719-120307
DC
Input
Voltage
Sense Output Voltage
+
-
D
V
S
C
VUV = IUV × RLS + VV (IV = IUV)
VOV = IOV × RLS + VV (IV = IOV)
For RLS = 4 MΩ
VUV = 102.8 VDC
VOV = 451 VDC
DCMAX @ 100 VDC = 76%
DCMAX @ 375 VDC = 41%
CONTROL
RLS
4 M
Ω
R
OVP >3kΩ
VROVP
ROVP
Figure 14. Line-Sensing for Undervoltage, Overvoltage and Line Feed-Forward.
Figure 15. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Hysteretic Output Overvoltage Protection.
Figure 13. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin.)
X
F
DC
Input
Voltage
+
-
D
C
D C
S
S D
S
C
CONTROL
V
V X C S
F
D
PI-6119-061011
E Package
(eSIP-7C)
V Package (eDIP-12)
1 V
2 X
3 C
4 F
6 D
S 12
S 11
S 10
S 9
S 8
S 7
D
C
S
K Package (eSOP-12)
S 12
S 11
S 10
S 9
S 8
S 7
1 V
2 X
3 C
4 F
6 D
PI-4720-120307
DC
Input
Voltage
+
-
D
V
S
C
VUV = RLS × IUV + VV (IV = IUV)
For Values Shown
VUV = 103.8 VDC
RLS
6.2 V
4 M
Ω
40 k
Ω
CONTROL
PI-4721-120307
DC
Input
Voltage
+
-
D
S
C
CONTROL
V
4 M
Ω
55 k
Ω
RLS
1N4148
VOV = IOV × RLS + VV (IV = IOV)
For Values Shown
VOV = 457.2 VDC
Figure 16. Line-Sensing for Undervoltage Only (Overvoltage Disabled).
Figure 17. Line-Sensing for Overvoltage Only (Undervoltage Disabled). Maximum
Duty Cycle Reduced at Low-Line and Further Reduction with
Increasing Line Voltage.
Figure 18. External Set Current Limit.
X
PI-5580-111210
DC
Input
Voltage
+
-
D
S
C
RIL
For RIL = 12 kΩ
ILIMIT = 61%
See Figure 37 for other
resistor values (RIL).
For RIL = 19 kΩ
ILIMIT = 37%
CONTROL



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