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PDF NTE1729 Data sheet ( Hoja de datos )
| Número de pieza | NTE1729 | |
| Descripción | Integrated Circuit Pulse Width Modulator (PWM) Control Circuit | |
| Fabricantes | NTE | |
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NTE1729
Integrated Circuit
Pulse Width Modulator (PWM) Control Circuit
Description:
The NTE1729 is an inverter control unit in a 16–Lead DIP type package which provides all the control
circuitry for PWM type switching regulators. Included in this device is the voltage reference, dual error
amplifiers, oscillator, pulse width modulator, pulse steering flip flop, dual alternating output switches,
and dead time control.
Features:
D Complete PWM Power Control Circuit
D Adjustable Dead Time: 0 to 100%
D No Double Pulsing of Same Output during Load Transient Condition
D Dual Error Amplifiers have Wide Common Mode Input Voltage Capability: –0.3V to VCC –2V
D Circuit Architecture Provides Easy Synchronization
D Uncommitted Outputs for 250mA Sink or Source
D With Miss–Operation Prevention Circuit for Low Level Supply Voltage
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41V
Error Amplifier Input Voltage, VICM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC +0.3V
Output Voltage, VCER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41V
Total Power Dissipation (TA = +25°C), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Recommended Operating Conditions:
Parameter
Supply Voltage
Output Voltage
Output Current
Error Amplifier Sink Current
Timing Capacitor
Timing Resistance
Oscillation Frequency
Operating Temperature
Symbol
VCC
VCER
IC
IOAMP
CT
RT
fosc
Topt
Min
7
–0.3
–
–
0.47
1.8
1
–20
Typ Max Unit
– 40 V
– 40 V
– 200 mA
– –0.3 mA
– 10000 nF
– 500 kΩ
– 300 kHz
– +70 °C
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet NTE1729.PDF ] | |
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| NTE1723 | Integrated Circuit Pulse Width Modulator (PWM) Regulator | NTE |
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