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参数资料
| 型号： | RDK-242 |
| 厂商： | Power Integrations |
| 文件页数： | 9/40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： | 板 |
| 已用 IC / 零件： | TOP266VG |
| 其它名称： | 596-1312 |
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TOP264-271
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 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-5528-060409
Figure 9.
VOLTAGE MONITOR and EXTERNAL CURRENT LIMIT Pin Characteristics.
turned on after entering this mode, it will initiate a normal
start-up sequence with soft-start the next time the CONTROL
pin reaches 5.8 V. In the worst case, the delay from remote-on
to start-up can be equal to the full discharge/charge cycle time
of the CONTROL pin, which is approximately 125 ms for a
47 m F CONTROL pin capacitor. This reduced consumption
remote off mode can eliminate expensive and unreliable in-line
mechanical switches. It also allows for microprocessor
controlled turn-on and turn-off sequences that may be required
in certain applications such as inkjet and laser printers.
www.powerint.com
Soft-Start
The 17 ms soft-start sweeps the peak drain current and switching
frequency linearly from minimum to maximum value by operating
through the low frequency PWM mode and the variable
frequency mode before entering the full frequency mode. In
addition to start-up, soft-start is also activated at each restart
attempt during auto-restart and when restarting after being in
hysteretic regulation of CONTROL pin voltage (V C ), due to
remote OFF or thermal shutdown conditions. This effectively
minimizes current and voltage stresses on the output MOSFET,
9
Rev. E 08/12
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