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MC33066P View Datasheet(PDF) - Motorola => Freescale

Part Name
Description
Manufacturer
MC33066P
Motorola
Motorola => Freescale Motorola
MC33066P Datasheet PDF : 12 Pages
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Order this document by MC34066/D
High Performance
Resonant Mode Controllers
The MC34066/MC33066 are high performance resonant mode
controllers designed for off–line and dc–to–dc converter applications that
utilize frequency modulated constant on–time or constant off–time control.
These integrated circuits feature a variable frequency oscillator with
programmable deadtime, precision retriggerable one–shot timer,
temperature compensated reference, high gain wide–bandwidth error
amplifier with a precision output clamp, steering flip–flop, and dual high
current totem pole outputs ideally suited for driving power MOSFETs.
Also included are protective features consisting of a high speed fault
comparator and latch, programmable soft–start circuitry, input undervoltage
lockout with selectable thresholds, and reference undervoltage lockout.
These devices are available in dual–in–line and surface mount packages.
Variable Frequency Oscillator with a Control Range Exceeding 1000:1
Programmable Oscillator Deadtime Allows Constant Off–Time Operation
Precision Retriggerable One–Shot Timer
Internally Trimmed Bandgap Reference
5.0 MHz Error Amplifier with Precision Output Clamp
Dual High Current Totem Pole Outputs
Selectable Undervoltage Lockout Thresholds with Hysteresis
Enable Input
Programmable Soft–Start Circuitry
Low Startup Current for Off–Line Operation
MC34066
MC33066
HIGH PERFORMANCE
RESONANT MODE
CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 648
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
(SO–16L)
PIN CONNECTIONS
Simplified Block Diagram
VCC
15
Enable/
UVLO Adjust 9
VCC UVLO
Reference
Regulator
Osc
Deadtime 1
Osc RC
Osc Control 2
Current 3
One–Shot RC
16
Variable
Frequency
Oscillator
One–Shot
Vref UVLO
Aout
Steering
Flip–Flop
Bout
Error Amp
Clamp
Error Amp
Out 6 Error
Amplifier
Error Amp +
8
Error Amp –
7
CSoft–Start
11
Soft–Start
Fault–Detector/
Latch
MOTOROLA ANALOG IC DEVICE DATA
5 Vref
Gnd
4
Drive
14 Output A
Drive
12 Output B
Drive Gnd
13
Fault Input
10
Osc Deadtime 1
Osc RC 2
Osc Control 3
Current
Gnd 4
Vref 5
Error Amp Out 6
Error Amp 7
Inverting Input
Error Amp 8
Noninverting Input
(Top View)
16 One–Shot RC
15 VCC
14 Drive Output A
13 Drive Gnd
12 Drive Output B
11 CSoft–Start
10 Fault Input
9
Enable/UVLO
Adjust
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC34066DW
TA = 0° to +70°C
MC34066P
SO–16L
Plastic DIP
MC33066DW
TA = – 40° to +85°C
MC33066P
SO–16L
Plastic DIP
© Motorola, Inc. 1996
Rev 1
1
 

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