MC33025P. ,HI-SPD PWM ControllerELECTRICAL CHARACTERISTICS (V = 15 V, R = 3.65 k, C = 1.0 nF, for typical values T = +25°C, for mi ..
MC3302D ,Single Supply Quad Comparatorsfeatures short circuitprotection.MOTOROLA Semiconductor Products Inc. MOTOROLA INC , 1975A NEW APPR ..
MC3302DR2 ,Single Supply Quad ComparatorsFeaturesCASE 751A1• Pb−Free Packages are Available*• Single or Split Supply Operation• Low Input Bi ..
MC3302P ,Single Supply Quad ComparatorsOrder this document by LM339/D* *These comparators are designed for use in level detection, low– ..
MC3303 ,Quad Operational Amplifierlogic diagram (each amplifier) IN+ +OUT–IN–Please be aware that an important notice concerning avai ..
MC33033DW ,Brushless DC Motor ControllerOrder this documantMOTOROLA by AN1o7s/o- SEMICONDUCTOR "Ii-I-iii-ttlg-li-ll-l"APPLICATION NOTEC AN ..
MC74HC125AF ,Buffer, Non-Inverting 3-StateMaximum Ratings are those values beyond which damage to the device may occur.Functional operation s ..
MC74HC125AFEL ,Buffer, Non-Inverting 3-StateMAXIMUM RATINGS*Symbol Parameter Value UnitÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎThis de ..
MC74HC125AFL1 ,Quad With 3-State Outputs NonInverting BufferMaximum Ratings are those values beyond which damage to the device may occur.Functional operation s ..
MC74HC125AFL2 ,Quad With 3-State Outputs NonInverting BufferThe MC74HC125A and MC74HC126A are identical in pinout tothe LS125 and LS126. The device inputs are ..
MC74HC125AFR1 ,Quad With 3-State Outputs NonInverting BufferELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)Guaranteed LimitÎÎÎV – 55 toCCÎSymbol Parame ..
MC74HC125AFR1 ,Quad With 3-State Outputs NonInverting BufferELECTRICAL CHARACTERISTICS (C = 50 pF, Input t = t = 6.0 ns)L r fGuaranteed LimitÎÎV – 55 toÎ CCÎÎÎ ..
MC33025P.
HI-SPD PWM Controller
MC34025, MC33025
High Speed Double-Ended
PWM Controller
The MC34025 series are high speed, fixed frequency, double−ended
pulse width modulator controllers optimized for high frequency
operation. They are specifically designed for Off−Line and
DC−to−DC converter applications offering the designer a cost
effective 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, steering flip−flop, and dual high current totem
pole outputs ideally suited for driving power MOSFETs.
Also included are protective features consisting of input and
reference undervoltage lockouts each with hysteresis, cycle−by−cycle
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. 50 ns Propagation Delay to Outputs Dual High Current Totem Pole Outputs Wide Bandwidth Error Amplifier Fully−Latched Logic with Double Pulse Suppression Latching PWM for Cycle−By−Cycle Current Limiting Soft−Start Control with Latched Overcurrent Reset Input Undervoltage Lockout with Hysteresis Low Start−Up Current (500 �A Typ) Internally Trimmed Reference with Undervoltage Lockout 45% Maximum Duty Cycle (Externally Adjustable) Precision Trimmed Oscillator Voltage or Current Mode Operation to 1.0 MHz Functionally Similar to the UC3825
Vref
Clock
Ramp
Error Amp
Output
Inverting
Input1
Soft-Start
Ground10 Current
Limit/
Shutdown
Output BNoninverting
Input Power
Ground
Output A
This device contains 227 active transistors.
