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参数资料
| 型号： | NTE7126 |
| 元件分类： | 稳压器 |
| 英文描述： | 20 A SWITCHING REGULATOR, 120 kHz SWITCHING FREQ-MAX, PSFM12 |
| 文件页数： | 1/3页 |
| 文件大小： | 24K |
| 代理商： | NTE7126 |
NTE7125 & NTE7126
Integrated Circuit
Switching Regulator
Description:
The NTE7125 and NTE7126 are integrated circuits in a 12–Lead SIP type package incorporating all
the power switching, amplifier, error detection, and overcurrent protection circuits required in a self–
extcitation type semi–regulated off–line switching regulator. As a result, these devices can be used
in the design of switching power supplies with a minimal number of external components. Further-
more, the adoption of MOSFET power switching elements supports a higher oscillation frequency
than possible with bi–polar transistors. This allows smaller pulse transformers and capacitors to be
used, making it possible to construct miniature power supply systems.
Features:
D Power MOSFET Devices
D Ideal for Semi–Regulated Control Switching Supplies
D Error Detection Circuit On–Chip (40.5V ±0.5V Set Refernce Voltage)
D Overcurrent Protection Circuit On–Chip
D Higher Oscillation Frequency allows the use of Smaller Pulse Transformers
D IMST Substrate acts as an Electromagnetic Shield, makinf Low–Noise Designs Possible
Applications:
D CRT/CTV Power Supplies
D Office Automation Equipment Power Supplies
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Operating Substrate Temperature (Recommended value is +105
°C), TCmax
+115
°C
. . . . . . . . . . . .
AC Input Voltage, VAC
140Vrms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPerating Temperature Range, Topr
–10
° to +85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg
–30
° to +115°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Output Power (VO = 135V), WOmax
NTE7125
110W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NTE7126
145W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TR1
Drain Current, ID
NTE7125
6A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NTE7126
8A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulse Drain Current, ID (pulse)
20A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drain Reverse Current, IDR
6A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gate–Source Voltage, VGSS
±30V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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