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NTE7096 fiches techniques PDF

NTE Electronics - Integrated Circuit Current Mode Pulse Width Modulator (PWM) Control Circuit

Numéro de référence NTE7096
Description Integrated Circuit Current Mode Pulse Width Modulator (PWM) Control Circuit
Fabricant NTE Electronics 
Logo NTE Electronics 





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NTE7096 fiche technique
NTE7096 & NTE7097
Integrated Circuit
Current Mode Pulse Width Modulator (PWM)
Control Circuit
Description:
The NTE7096 and NTE7097 are integrated circuits in 8–Lead DIP type packages that incorporate a
new precision temperature–controlled oscillator with an internally trimmed discharge current to mini-
mize variations in frequency. A precision duty–cycle clamp eliminates any need for an external oscil-
lator when at, or near, a 50% duty–cycle condition. Duty–cycles greater than 50% are also possible.
Special logic ensures that Vref is stabilized before the output stage is enabled. Ion–implant resistors
provide tighter control of under–voltage lockout.
Other features include low start–up current, pulse–by–current limiting, and high–current totem pole
output for driving capacitive loads, such as the gate of a power MOSFET. The output is low in the
off state, consistent with N–channel devices.
Features:
D Optimized for Off–Line Control
D Internally Trimmed Temperature Compensated Oscillator
D Maximum Duty–Cycle Clamp
D Vref Stabilized before Output Stage is Enabled
D Low Start–Up Current
D Pulse–by Pulse Current Limiting
D Improved U/V Lockout
D Double Pulse Suppression
D 1% Trimmed Bandgap Reference
D High Current Totem Pole Output
Absolute Maximum Ratings:
Supply Voltage (ICC < 30mA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self Limiting
Supply Voltage (Low Impedence Source) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1A
Output Energy (Capacitive Load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5µJ
Analog Inputs (Pin2, Pin3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VCC
Error Amp Output Sink Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA

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