NTE7096

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 minimize variations in frequency. A precision duty–cycle clamp eliminates any need for an external oscillator 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) . . . . . . . . . . . . . . . . . . . . . . . . . ...