NTE7097中文资料Integrated Circuit Current Mode Pulse Width Modulator (PWM) Control Circuit数据手册NTE规格书

描述 Description

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.Features:
Optimized for Off–Line Control
Internally Trimmed Temperature Compensated Oscillator
Maximum Duty–Cycle Clamp
Vref Stabilized before Output Stage is Enabled
Low Start–Up Current
Pulse–by Pulse Current Limiting
Improved U/V Lockout
Double Pulse Suppression
1% Trimmed Bandgap Reference
High Current Totem Pole OutputAbsolute 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