NTE1722
NTE1722 is Integrated Circuit Pulse Width Modulator (PWM) Control Circuit manufactured by NTE Electronics.
Description
: The NTE1722 is a high performance pulse width modulator integrated circuit in an 18- Lead DIP type package intended for fixed frequency switching regulators and other power control applications. Functions included in this IC are a temperature pensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and steering logic, and two high current totem pole outputs ideally suited for driving the capacitance of power FETs at high speeds. Additional protective features include soft start and undervoltage lockout, digital current limiting, double pulse inhibit, adjustable dead time and a data latch for single pulse metering. All digital control ports art TTL and B- series CMOS patible. Active low logic design allows easy wired- OR connections for maximum flexibility. The versatility of this device enables implementation in single- ended or push- pull switching regulators that are transformerless or transformer coupled. Features
: D 8.0 to 35 Volt Operation D 5.0 Volt ±1% Trimmed Reference D 1.0Hz to 400k Hz Oscillator Range D Dual Source/Sink Current Outputs: ±100m A D Digital Current Limiting D Programmable Dead Time D Wide Current Limit mon Mode Range D Guaranteed 6 Unit Synchronization Absolute Maximum Ratings: (Values beyond which damage may occur) Supply Voltage, VCC
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- - . . . +40V Collector Supply Voltage, VC
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- . +40V Logic Inputs
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- 0.3 to +5.5V Analog Inputs
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- 0.3 to VCC V Output Current (Source or Sink), IO
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