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MC34023 の電気的特性と機能

MC34023のメーカーはON Semiconductorです、この部品の機能は「(MC33023 / MC34023) High Speed Single-Ended PWM Controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 MC34023
部品説明 (MC33023 / MC34023) High Speed Single-Ended PWM Controller
メーカ ON Semiconductor
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MC34023 Datasheet, MC34023 PDF,ピン配置, 機能
MC34023, MC33023
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.
Features
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
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Low Startup Current (500 mA 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
Pb−Free Packages are Available*
http://onsemi.com
16
1
16
1
PDIP−16
P SUFFIX
CASE 648
SOIC−16W
DW SUFFIX
CASE 751G
MARKING DIAGRAMS
16
16
MC34023P
AWLYYWWG
1
MC33023DW
AWLYYWWG
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
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
Oscillator
5.1V
Reference
UVLO
Latching
Error PWM
Amp
Soft−Start
10 Ground
This device contains 176 active transistors.
Figure 1. Simplified Application
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
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 6
1
Publication Order Number:
MC34023/D

1 Page





MC34023 pdf, ピン配列
MC34023, MC33023
ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kW, 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
REFERENCE SECTION
Reference Output Voltage (IO = 1.0 mA, TJ = + 25°C)
Line Regulation (VCC = 10 V to 30 V)
Load Regulation (IO = 1.0 mA to 10 mA)
Temperature Stability
Total Output Variation over Line, Load, and Temperature
Output Noise Voltage (f = 10 Hz to 10 kHz, TJ = + 25°C)
Long Term Stability (TA = +125°C for 1000 Hours)
Output Short Circuit Current
OSCILLATOR SECTION
Vref
Regline
Regload
TS
Vref
Vn
S
ISC
5.05
4.95
− 30
5.1
2.0
2.0
0.2
50
5.0
− 65
5.15
15
15
5.25
−100
V
mV
mV
mV/°C
V
mV
mV
mA
Frequency
TJ = + 25°C
Line (VCC = 10 V to 30 V) and Temperature (TA = Tlow to Thigh)
Frequency Change with Voltage (VCC = 10 V to 30 V)
Frequency Change with Temperature (TA = Tlow to Thigh)
Sawtooth Peak Voltage
Sawtooth Valley Voltage
Clock Output Voltage
High State
Low State
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
fosc
Dfosc/DV
Dfosc/DT
VOSC(P)
VOSC(V)
VOH
VOL
380
370
2.6
0.7
3.9
VIO
IIB
IIO
AVOL
GBW
CMRR
PSRR
ISource
ISink
VOH
VOL
SR
60
4.0
75
85
0.5
1.0
4.5
0
6.0
400
400
0.2
2.0
2.8
1.0
4.5
2.3
0.6
0.1
95
8.3
95
110
3.0
3.6
4.75
0.4
12
kHz
420
430
1.0 %
−%
3.0 V
1.25 V
V
2.9
15 mV
3.0 mA
1.0 mA
− dB
− MHz
− dB
− dB
− mA
5.0 V
1.0
− V/ms
PWM COMPARATOR SECTION
Ramp Input Bias Current
IIB − −0.5 −5.0
Duty Cycle, Maximum
Duty Cycle, Minimum
DC(max)
DC(min)
80
90
0
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Vth 1.1 1.25 1.4
Propagation Delay (Ramp Input to Output, TJ = + 25°C)
tPLH(in/out)
60 100
SOFT−START SECTION
Charge Current (VSoft−Start = 0.5 V)
Ichg 3.0 9.0 20
Discharge Current (VSoft−Start = 1.5 V)
Idischg 1.0 4.0
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
= −40°C for MC33023
Thigh = +70°C for MC34023
= +105°C for MC33023
mA
%
V
ns
mA
mA
http://onsemi.com
3


3Pages


MC34023 電子部品, 半導体
MC34023, MC33023
0
− 5.0
VCC = 15 V
− 10
− 15
TA = − 55°C
TA = +125°C
TA = + 25°C
− 20
− 25
− 30
0
10 20 30 40
ISource, SOURCE CURRENT (mA)
Figure 8. Reference Voltage Change
versus Source Current
50
66
65.6 VCC = 15 V
65.2
64.8
64.4
64
− 55 − 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125
Figure 9. Reference Short Circuit Current
versus Temperature
Vref LINE REGULATION 10 V to 24 V
(2.0 ms/DIV)
Figure 10. Reference Line Regulation
Vref LOAD REGULATION 1.0 mA to 10 mA
(2.0 ms/DIV)
Figure 11. Reference Load Regulation
100
60 VCC = 15 V
Pin 11(14) = 1.1 V
20
− 20
− 60
− 100
− 55 − 25
0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125
Figure 12. Current Limit Comparator Input
Offset Voltage versus Temperature
1.50
1.46 VCC = 15 V
1.42
1.38
1.34
1.30
− 55
− 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
125
Figure 13. Shutdown Comparator Threshold
Voltage versus Temperature
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6 Page



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共有リンク

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部品番号部品説明メーカ
MC34023

(MC33023 / MC34023) High Speed Single-Ended PWM Controller

ON Semiconductor
ON Semiconductor
MC34025

(MC33025 / MC34025) High Speed Single-Ended PWM Controller

ON Semiconductor
ON Semiconductor


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