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MC33067 の電気的特性と機能

MC33067のメーカーはMotorola Semiconductorsです、この部品の機能は「(MC33067 / MC34067) HIGH PERFORMANCE ZERO VOLTAGE SWITCH RESONANT MODE CONTROLLERS」です。


製品の詳細 ( Datasheet PDF )

部品番号 MC33067
部品説明 (MC33067 / MC34067) HIGH PERFORMANCE ZERO VOLTAGE SWITCH RESONANT MODE CONTROLLERS
メーカ Motorola Semiconductors
ロゴ Motorola Semiconductors ロゴ 




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MC33067 Datasheet, MC33067 PDF,ピン配置, 機能
High Performance
Resonant Mode Controllers
The MC34067/MC33067 are high performance zero voltage switch
resonant mode controllers designed for off–line and dc–to–dc converter
applications that utilize frequency modulated constant off–time or constant
deadtime control. These integrated circuits feature a variable frequency
oscillator, a precise retriggerable one–shot timer, temperature compensated
reference, high gain wide bandwidth error amplifier, 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, 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.
Zero Voltage Switch Resonant Mode Operation
Variable Frequency Oscillator with a Control Range Exceeding 1000:1
Precision One–Shot Timer for Controlled Off–Time
Internally Trimmed Bandgap Reference
4.0 MHz Error Amplifier
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
Order this document by MC34067/D
MC34067
MC33067
HIGH PERFORMANCE
ZERO VOLTAGE SWITCH
RESONANT MODE
CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 648
16
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
(SO–16L)
16
1
Simplified Block Diagram
15
VCC
Enable / 9
UVLO Adjust
1
Osc Charge
2
Osc RC
Oscillator 3
Control Current
16
One–Shot
Error Amp 6
Output
Noninverting 8
Input
Inverting Input 7
11
Soft–Start
VCC UVLO /
Enable
Variable
Frequency
Oscillator
One–Shot
2.5 V
Clamp
Error
Amp
5.0 V
Reference
Vref UVLO
Steering
Flip–Flop
Soft–Start
Fault Detector
4 Ground
MOTOROLA ANALOG IC DEVICE DATA
5
Vref
14
Output A
12
Output B
13
Pwr Gnd
10
Fault Input
PIN CONNECTIONS
Osc Charge 1
16 One–Shot RC
Osc RC 2
Osc Control Current 3
15 VCC
14 Drive Output A
Gnd 4
Vref 5
Error Amp Out 6
Inverting Input 7
Noninverting Input 8
13 Power Gnd
12 Drive Output B
11 CSoft–Start
10 Fault Input
9
Enable/UVLO
Adjust
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
MC34067DW
MC34067P
MC33067DW
MC33067P
TA = 0 to + 70°C
TA = – 40° to + 85°C
Package
SO–16L
Plastic DIP
SO–16L
Plastic DIP
© Motorola, Inc. 1999
Rev 1, 05/99
1

1 Page





MC33067 pdf, ピン配列
MC34067 MC33067
ELECTRICAL CHARACTERISTICS (VCC = 12 V [Note 2], ROSC= 18.2 k, RVFO = 2940, COSC = 300 pF, RT = 2370 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.)
Characteristic
Symbol
Min Typ Max Unit
OSCILLATOR
Frequency (Error Amp Output Low)
TA = 25°C
Total Variation (VCC = 10 to 18 V, TA = TLow to THigh
Frequency (Error Amp Output High)
TA = 25°C
Total Variation (VCC = 10 to 18 V, TA = TLow to THigh
Oscillator Control Input Voltage, Pin 3 @ 25°C
ONE–SHOT
Drive Output Off–Time
TA = 25°C
Total Variation (VCC = 10 to 18 V, TA = TLow to THigh
fOSC(low)
500
525
540
490 – 550
fOSC(high)
Vin
1900
1850
2050
2.5
2150
2200
kHz
kHz
V
tBlank
235 250 270
225 – 280
ns
DRIVE OUTPUTS
Output Voltage
Low State (ISink = 20 mA)
Low State (ISink = 200 mA)
High State (ISource = 20 mA)
High State (ISource = 200 mA)
Output Voltage with UVLO Activated (VCC = 6.0 V, ISink = 1.0 mA)
Output Voltage Rise Time (CL = 1.0 nF)
Output Voltage Fall Time (CL = 1.0 nF)
FAULT COMPARATOR
Input Threshold
Input Bias Current (VPin 10 = 0 V)
Propagation Delay to Drive Outputs (100 mV Overdrive)
SOFT–START
Capacitor Charge Current (VPin 11 = 2.5 V)
Capacitor Discharge Current (VPin 11 = 2.5 V)
UNDERVOLTAGE LOCKOUT
Startup Threshold, VCC Increasing
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to VCC
Minimum Operating Voltage After Turn–On
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to VCC
Enable/UVLO Adjust Shutdown Threshold Voltage
Enable/UVLO Adjust Input Current (Pin 9 = 0 V)
TOTAL DEVICE
Power Supply Current (Enable/UVLO Adjust Pin Open)
Startup (VCC = 13.5 V)
Operating (fOSC = 500 kHz) (Note 2)
VOL
VOH
– 0.8 1.2
– 1.5 2.0
9.5 10.3
9.0 9.7
VOL(UVLO)
tr
tf
0.8 1.2
20 50
15 50
V
V
ns
ns
Vth 0.93 1.0
IIB – – 2.0
tPLH(In/Out)
60
1.07
– 10
100
V
µA
ns
Ichg
Idischg
4.5 9.0 14 µA
3.0 8.0 – mA
Vth(UVLO) 14.8 16 17.2
8.0 9.0
10
VCC(min)
8.0
9.0
10
7.6 8.6 9.6
Vth(Enable)
6.0
7.0
Iin(Enable)
– – 0.2 – 1.0
V
V
V
mA
mA
ICC – 0.5 0.8
– 27 35
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 the MC34067
= – 40°C for the MC33067
Thigh = + 70°C for MC34067
Thigh = + 85°C for MC33067
MOTOROLA ANALOG IC DEVICE DATA
3


3Pages


MC33067 電子部品, 半導体
VCC
15
MC34067 MC33067
Figure 13. MC34067 Representative Block Diagram
Enable /
UVLO Adjust 9
50k
7.0k
50k
7.0k
8.0V VCC UVLO
5.1V
Reference
Vref
Vref UVLO
Vref
5
OSC Charge
1
ROSC
OSC RC
COSC
2
One–Shot RC
CT RT
Oscillator 16
Control Current
3
IOSO RVFO
Error Amp Output 6
8
Noninverting Input
Inverting Input 7
Soft–Start
Error Amp
11
Vref
Q1 D1
Q2
Oscillator
IOSC
4.9V/3.6V
One–Shot
4.9V/3.6V
3.1V
Error Amp
Clamp
9.0µA
4.2/4.0V
Steering
Flip–Flop
Q
T
RQ
Output A
14
Power Ground
13
Output B
12
Fault Comparator
1.0V
Fault Input
10
4 Ground
5.1 V
COSC
3. 6 V
One–Shot 5.1 V
3.6 V
Timing Diagram
Output A
Output B
tOS tOS tOS
Error Amp output high, minimum IOSC current
occurring at minimum input voltage, maximum load.
6
tOS tOS tOS
Error Amp output low, maximum IOSC current
occurring at maximum input voltage, minimum load.
MOTOROLA ANALOG IC DEVICE DATA

6 Page



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