器件名称: MC34023
功能描述: High Speed SingleEnded PWM Controller
文件大小: 441.43KB 共18页
简 介:MC34023, MC33023 High Speed SingleEnded PWM Controller
The MC34023 series are high speed, fixed frequency, singleended pulse width modulator controllers optimized for high frequency operation. They are specifically designed for OffLine and DCtoDC converter applications offering the designer a costeffective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cyclebycycle current limiting, and a latch for single pulse metering. The flexibility of this series allows it to be easily configured for either current mode or voltage mode control.
Features
http://onsemi.com
16 1
PDIP16 P SUFFIX CASE 648
16 1
SOIC16W DW SUFFIX CASE 751G
50 ns Propagation Delay to Output High Current Totem Pole Output Wide Bandwidth Error Amplifier FullyLatched Logic with Double Pulse Suppression Latching PWM for CycleByCycle Current Limiting SoftStart Control with Latched Overcurrent Reset Input Undervoltage Lockout with Hysteresis Low Startup Current (500 mA Typ) Internally Trimmed Reference with Undervoltage Lockout 90% Maximum Duty Cycle (Externally Adjustable) Precision Trimmed Oscillator Voltage or Current Mode Operation to 1.0 MHz Func……
