参数资料
型号: RDK-242
厂商: Power Integrations
文件页数: 13/40页
文件大小: 0K
描述: KIT REF DESIGN VG TOPSWITCH-JX
标准包装: 1
系列: TOPSwitch®-JX
主要目的: AC/DC,主面和辅面
输出及类型: 1,隔离
功率 - 输出: 30W
输出电压: 12V
电流 - 输出: 2.5A
输入电压: 85 ~ 264VAC
稳压器拓扑结构: 回扫
频率 - 开关: 132kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: TOP266VG
其它名称: 596-1312
TOP264-271
Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins
V
+
DC
Input
Voltage
D
E Package
(eSIP-7C)
VXC F S D
C S D
CONTROL
C
V Package (eDIP-12)
S 12 1V
S 11 2X
S 10 3C
S9 4F
S8
S7 6D
S
D C
K Package (eSOP-12)
1V S 12
2X S 11
3C S 10
4F S9
S8
+
DC
Input
Voltage
D
R LS 4 M ?
V
CONTROL
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
DC MAX @100 VDC = 76%
DC MAX @375 VDC = 41%
C
-
S
X
F
6D
C D
S7
S
PI-6119-061011
-
S
PI-4717-120307
Figure 13. Three Terminal Operation (VOLTAGE MONITOR and EXTERNAL
CURRENT LIMIT Features Disabled. FREQUENCY Pin Tied to
SOURCE or CONTROL Pin.)
Figure 14. Line-Sensing for Undervoltage, Overvoltage and Line Feed-Forward.
+
DC
Input
Voltage
R LS
4 M ?
VR OVP
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%
+
DC
Input
Voltage
4 M ?
40 k ?
V UV = R LS × I UV + V V (I V = I UV )
For Values Shown
V UV = 103.8 VDC
R LS
D
V
D
V
-
S
CONTROL
C
R OVP >3k ?
-
6.2 V
S
CONTROL
C
PI-4719-120307
Figure 15. Line-Sensing for Undervoltage, Overvoltage, Line Feed-Forward and
Hysteretic Output Overvoltage Protection.
PI-4720-120307
Figure 16. Line Sensing for Undervoltage Only (Overvoltage Disabled).
+
RLS
V OV = I OV × R LS + V V (I V = I OV )
4 M ?
For Values Shown
V OV = 457.2 VDC
+
For R IL = 12 k ?
I LIMIT = 61%
For R IL = 19 k ?
I LIMIT = 37%
DC
Input
Voltage
D
55 k ?
V
1N4148
DC
Input
Voltage
D
CONTROL
C
See Figure 37 for other
resistor values (R IL ).
CONTROL
C
S
X
-
S
-
R IL
PI-4721-120307
Figure 17. Line-Sensing for Overvoltage Only (Undervoltage Disabled). Maximum
Duty Cycle Reduced at Low-Line and Further Reduction with
Figure 18. External Set Current Limit.
PI-5580-111210
Increasing Line Voltage.
13
www.powerint.com
Rev. E 08/12
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