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PDF NTE7109 Data sheet ( Hoja de datos )
| Número de pieza | NTE7109 | |
| Descripción | Integrated Circuit Switching Regulator Control | |
| Fabricantes | NTE Electronics | |
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NTE7109
Integrated Circuit
Switching Regulator Control
Description:
The NTE7109 is a primary switching regulator controller in a 16–Lead DIP type package designed
to get the regulated DC voltage from an AC power supply. This device can directly drive a MOSFET
with fast rise and fall output pulses.
The NTE7109 contains not only a high frequency OSC and fast output drive, but also a current limiter
with fast response and high sensibility so a true “fast switching regulator” can be realized. By adding
additional compenents to the primary side, a timer–type protection circuit can be made for protection
against short–circuit and overcurrent.
Features:
D 500kHz Operation to MOSFET
• Output Current: ±2A
• Output Rise Time: 60ns; Fall Time: 40ns
• Modified Totem–Pole Output Method with Low Through Current
D Compact and Light–Weight Power Supply
• Low Start–Up Current: 90µA Typ.
• Wide Range Between “Start–Up Voltage” and “Stop Voltage” make the Power Input Smooting
Capacitor Low; Start–Up Threshold Voltage: 16V; Stop Voltage: 10V
• High Power Dissipation Package withstands the Heat Generated bt the Gate–Drive Current
of a MOSFET
D Simplified Peripheral Circuit with Protection Circuit and Built–In Large–Capacity Totem–Pole
Output
• High–Speed Current Limiting Circuit using Pulse–by–Pulse Method (Two Systems of
CLM+pin, CLM–pin)
• Protection by Intermittent Operation of Output Overcurrent: Timer Protection Circuit
• Overvoltage Protection Circuit with an Externally Resettable Latch (OVP)
• Protection Circuit for Output Miss Action at Low Supply Voltage (UVLO)
D High–Performance and Highly Functional Power Supply
• Triangular Wave Oscillator for Easy Dead Time Setting
Applications:
D Feed Forward Regulator
D Flyback Regulator
1 page  
Pin Connection Diagram
Collector 1
VOUT 2
Emitter 3
VF 4
ON/OFF 5
OVP (Shut Down) 6
DET 7
F/B 8
16 VCC
15 CLM (+)
14 CLM (–)
13 GND
12 CT
11 T – OFF
10 OSC Capacitance
9 T – ON
16 9
.260 (6.6) Max
18
.785 (19.9) Max
.245
(6.22)
Min
.100 (2.54)
.700 (17.7)
.300 (7.62)
.200 (5.08)
Max
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet NTE7109.PDF ] | |
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