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MC33023のメーカーはMotorola Semiconductorsです、この部品の機能は「High Speed Single-Ended PWM Controller」です。 |
部品番号 | MC33023 |
| |
部品説明 | High Speed Single-Ended PWM Controller | ||
メーカ | Motorola Semiconductors | ||
ロゴ | |||
このページの下部にプレビューとMC33023ダウンロード(pdfファイル)リンクがあります。 Total 19 pages
High Speed Single-Ended
PWM Controller
The MC34023 series are high speed, fixed frequency, single–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, 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, 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 Output
• High Current Totem Pole Output
• 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 µA 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
• Functionally Similar to the UC3823
Order this document by MC34023/D
MC34023
MC33023
16
1
P SUFFIX
PLASTIC PACKAGE
CASE 648
16
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
(SO–16L)
PIN CONNECTIONS
16
Vref
4
Clock
5
RT
6
CT
7
Ramp
Error Amp 3
Output
Noninverting
Input
2
Inverting
Input
1
8
Soft–Start
Simplified Application
Oscillator
5.1V
Reference
UVLO
Latching
Error PWM
Amp
Soft–Start
10 Ground
This device contains 176 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
15
VCC
13
VC
14
Output
12
Power
Ground
11
Current
9
Limit Ref
Current
Limit/
Shutdown
Error Amp
Inverting Input
Error Amp
Noninverting Input
Error Amp Output
1
2
3
16 Vref
15 VCC
14 Output
Clock 4
RT 5
CT 6
Ramp 7
Soft–Start 8
13 VC
12 Power Ground
11 Current Limit
Reference
10 Ground
9 Current Limit/
Shutdown
(Top View)
ORDERING INFORMATION
Device
MC33023P
MC33023DW
MC34023P
Operating
Temperature Range Package
Plastic DIP
TA = – 40° to +105°C
SO–16L
TA = 0° to +70°C Plastic DIP
© Motorola, Inc. 1996
Rev 2
1
1 Page MC34023 MC33023
ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kΩ, CT = 1.0 nF, for typical values TA = + 25°C, for min/max values TA is
the operating ambient temperature range that applies [Note 2], unless otherwise noted.)
Characteristic
Symbol
Min Typ Max Unit
ERROR AMPLIFIER SECTION
Input Offset Voltage
Input Bias Current
Input Offset Current
Open–Loop Voltage Gain (VO = 1.0 V to 4.0 V)
Gain Bandwidth Product (TJ = + 25°C)
Common Mode Rejection Ratio (VCM = 1.5 V to 5.5 V)
Power Supply Rejection Ratio (VCC = 10 V to 30 V)
Output Current, Source (VO = 4.0 V)
Output Current, Sink (VO = 1.0 V)
Output Voltage Swing, High State (IO = – 0.5 mA)
Output Voltage Swing, Low State (IO = 1 mA)
Slew Rate
PWM COMPARATOR SECTION
Ramp Input Bias Current
Duty Cycle, Maximum
Duty Cycle, Minimum
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Propagation Delay (Ramp Input to Output, TJ = + 25°C)
SOFT–START SECTION
Charge Current (VSoft–Start = 0.5 V)
Discharge Current (VSoft–Start = 1.5 V)
CURRENT SENSE SECTION
Input Bias Current (Pin 9(12) = 0 V to 4.0 V)
Current Limit Comparator Input Offset Voltage (Pin 11(14) = 1.1 V)
Current Limit Reference Input Common Mode Range (Pin 11(14))
Shutdown Comparator Threshold
Propagation Delay (Current Limit/Shutdown to Output, TJ = + 25°C)
OUTPUT SECTION
Output Voltage
Low State (ISink = 20 mA)
(ISink = 200 mA)
High State (ISource = 20 mA)
(ISource = 200 mA)
Output Voltage with UVLO Activated (VCC = 6.0 V, ISink = 0.5 mA)
Output Leakage Current (VC = 20 V)
Output Voltage Rise Time (CL = 1.0 nF, TJ = + 25°C)
Output Voltage Fall Time (CL = 1.0 nF, TJ = + 25°C)
UNDERVOLTAGE LOCKOUT SECTION
Start–Up Threshold (VCC Increasing)
UVLO Hysteresis Voltage (VCC Decreasing After Turn–On)
TOTAL DEVICE
Power Supply Current
Start–Up (VCC = 8.0 V)
Operating
VIO
IIB
IIO
AVOL
GBW
CMRR
PSRR
ISource
ISink
VOH
VOL
SR
– – 15 mV
– 0.6 3.0 µA
– 0.1 1.0 µA
60 95 – dB
4.0 8.3
– MHz
75 95 – dB
85 110 – dB
0.5 3.0 – mA
1.0 3.6
–
4.5 4.75 5.0
0 0.4 1.0
V
6.0 12
– V/µs
IIB
DC(max)
DC(min)
Vth
tPLH(in/out)
–
80
–
1.1
–
– 0.5
90
–
1.25
60
– 5.0
–
0
1.4
100
Ichg
Idischg
3.0 9.0 20
1.0 4.0
–
IIB – – 15
VIO – – 45
VCMR
1.0 – 1.25
Vth 1.25 1.40 1.55
tPLH(in/out)
–
50 80
µA
%
V
ns
µA
mA
µA
mV
V
V
ns
VOL
VOH
VOL(UVLO)
IL
tr
tf
–
–
13
12
–
–
–
–
0.25 0.4
1.2 2.2
13.5 –
13 –
0.25 1.0
100 500
30 60
30 60
V
V
µA
ns
ns
Vth(on)
VH
8.8 9.2 9.6
0.4 0.8 1.2
V
V
ICC mA
– 0.5 1.2
– 20 30
NOTES: 1. Maximum package power dissipation limits must be observed.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Tlow = 0°C for MC34023
Tlow = – 40°C for MC33023
Thigh = +70°C for MC34023
Thigh = +105°C for MC33023
MOTOROLA ANALOG IC DEVICE DATA
3
3Pages MC34023 MC33023
Figure 13. Soft–Start Charge Current
versus Temperature
10
VCC = 15 V
9.5
9.0
8.5
8.0
7.5
7.0
– 55 – 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125
Figure 14. Output Saturation Voltage
versus Load Current
0
VCC
– 1.0
VCC = 15 V
80 µs Pulsed Load
– 2.0
120 Hz Rate
TA = 25°C
Source Saturation
(Load to Ground)
2.0
1.0
Ground
Sink Saturation
(Load to VCC)
0
0 0.2 0.4 0.6 0.8 1.0
IO, OUTPUT LOAD CURRENT (A)
Figure 15. Drive Output Rise and Fall Time
Figure 16. Drive Output Rise and Fall Time
OUTPUT RISE & FALL TIME 1.0 nF LOAD
50 ns/DIV
OUTPUT RISE & FALL TIME 10 nF LOAD
50 ns/DIV
Figure 17. Supply Voltage versus Supply Current
30
25 RT = 3.65 kΩ
CT = 1.0 nF
20
VCC Increasing
15
VCC Decreasing
10
5.0
0
0 4.0 8.0 12 16 20
VCC, SUPPLY VOLTAGE (V)
6 MOTOROLA ANALOG IC DEVICE DATA
6 Page | |||
ページ | 合計 : 19 ページ | ||
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PDF ダウンロード | [ MC33023 データシート.PDF ] |
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MC33023 | High Speed Single-Ended PWM Controller | Motorola Semiconductors |