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MC34066 반도체 회로 부품 판매점

(MC33066 / MC34066) HIGH PERFORMANCE RESONANT MODE CONTROLLERS



Motorola Semiconductors 로고
Motorola Semiconductors
MC34066 데이터시트, 핀배열, 회로
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
Osc
Deadtime 1
Osc RC
Osc Control 2
Current 3
One–Shot RC
16
VCC UVLO
Reference
Regulator
Variable
Frequency
Oscillator
One–Shot
Vref UVLO
Steering
Flip–Flop
Aout
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


MC34066 데이터시트, 핀배열, 회로
MAXIMUM RATINGS
Rating
Power Input Supply Voltage
Drive Output Current, Source or Sink (Note 1)
Continuous
Pulsed (0.5 µs, 25% Duty Cycle)
Error Amplifier, Fault, One–Shot, Oscillator, and
Soft–Start Inputs
UVLO Adjust Input
Soft–Start Discharge Current
Power Dissipation and Thermal Characteristics
DW Suffix Package, Case 751G
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction–to–Air
P Suffix Package, Case 648
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, Junction–to–Air
Operating Junction Temperature
Operating Ambient Temperature
MC34066
MC33066
Storage Temperature Range
MC34066 MC33066
Symbol
VCC
IO
Vin
Value
20
0.3
1.5
–1.0 to +6.0
Unit
V
A
V
Vin(UVLO)
Idchg
–1.0 to VCC
20
V
mA
PD
RθJA
PD
RθJA
TJ
TA
Tstg
862
145
1.25
100
+150
0 to +70
–40 to +85
–65 to +150
mW
°C/W
W
°C/W
°C
°C
°C
ELECTRICAL CHARACTERISTICS (VCC = 12 V [Note 2], ROSC = 95.3 k, RDT = 0 , RVFO = 5.62 k, COSC = 300 pF, RT = 14.3 k,
CT = 300 pF, CL = 1.0 nF, for typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies
[Note 3], unless otherwise noted.)
Characteristics
Symbol
Min Typ Max Unit
REFERENCE SECTION
Reference Output Voltage (IO = 0 mA, TA = 25°C)
Line Regulation (VCC = 10 V to 18 V)
Load Regulation (IO = 0 mA to 10 mA)
Total Output Variation over Line, Load, and Temperature
Output Short Circuit Current
Reference Undervoltage Lockout Threshold
ERROR AMPLIFIER
Input Offset Voltage (VCM = 1.5 V)
Input Bias Current (VCM = 1.5 V)
Input Offset Current (VCM = 1.5 V)
Open Loop Voltage Gain (VCM = 1.5 V, VO = 2.0 V)
Gain Bandwidth Product (f = 100 kHz)
Vref
Regline
Regload
Vref
IO
Vth
VIO
IIB
IIO
AVOL
GBW
5.0 5.1 5.2
V
– 1.0 20 mV
– 1.0 20 mV
4.9 – 5.3 mV
25 100 190 mA
3.8 4.3 4.8
V
– 1.0 10 mV
– 0.2 1.0 µA
– 0 0.5 µA
70 100
dB
2.5 4.2
– MHz
Input Common Mode Rejection Ratio (VCM = 1.5 V to 5.0 V)
Power Supply Rejection Ratio (VCC = 10 V to 18 V, f = 120 Hz)
Output Voltage Swing
High State with Respect to Pin 3 (ISource = 2.0 mA)
Low State with Respect to Ground (ISink = 1.0 mA)
CMRR
PSRR
VOH
VOL
70 95
80 100
2.3 2.7 3.1
– 0.4 0.6
dB
dB
V
NOTES: 1. Maximum package power dissipation limits must be observed.
2. Adjust VCC above the Startup threshold before setting to 12 V.
3. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Tlow = 0°C for MC34066
–40°C for MC33066
Thigh = +70°C for MC34066
Thigh = +85°C for MC33066
2 MOTOROLA ANALOG IC DEVICE DATA




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MC34066 controller

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