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부품번호 | MC34163 기능 |
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기능 | (MC33163 / MC33163) Step-Up/Down/Inverting Switching Regulators | ||
제조업체 | ON Semiconductor | ||
로고 | |||
전체 16 페이지수
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MC34163, MC33163
3.4 A, Step−Up/Down/
Inverting Switching
Regulators
The MC34163 series are monolithic power switching regulators that
contain the primary functions required for dc−to−dc converters. This
series is specifically designed to be incorporated in step−up,
step−down, and voltage−inverting applications with a minimum
number of external components.
These devices consist of two high gain voltage feedback
comparators, temperature compensated reference, controlled duty
cycle oscillator, driver with bootstrap capability for increased
efficiency, and a high current output switch. Protective features consist
of cycle−by−cycle current limiting, and internal thermal shutdown.
Also included is a low voltage indicator output designed to interface
with microprocessor based systems.
These devices are contained in a 16 pin dual−in−line heat tab plastic
package for improved thermal conduction.
Features
• Output Switch Current in Excess of 3.0 A
• Operation from 2.5 V to 40 V Input
• Low Standby Current
• Precision 2% Reference
• Controlled Duty Cycle Oscillator
• Driver with Bootstrap Capability for Increased Efficiency
• Cycle−by−Cycle Current Limiting
• Internal Thermal Shutdown Protection
• Low Voltage Indicator Output for Direct Microprocessor Interface
• Heat Tab Power Package
• Moisture Sensitivity Level (MSL) Equals 1
• Pb−Free Packages are Available*
Ipk Sense 8
VCC 7
Timing
Capacitor
6
− ILimit
+
+
OSC
9
Driver
Collector
10
Switch
Collector
11
5
GND
4
Control Logic
and Thermal
Shutdown
+
12
GND
13
Voltage
Feedback 1
3
Voltage
Feedback 2
2
LVI Output 1
LVI
+
+
−
VFB
+
+
−
+
14
Switch
Emitter
15
16
Bootstrap
Input
(Bottom View)
This device contains 114 active transistors.
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 5
1
16
1
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MARKING
DIAGRAMS
16
PDIP−16 1
P SUFFIX
CASE 648C
MC3x163P
AWLYYWWG
16
16
1
MC3x163DW
AWLYYWWG
SOIC−16W
DW SUFFIX
CASE 751G 1
x = 3 or 4
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G = Pb−Free Package
PIN CONNECTIONS
LVI Output 1
Voltage Feedback 2 2
Voltage Feedback 1 3
4
GND
5
Timing Capacitor 6
VCC 7
Ipk Sense 8
16 Bootstrap Input
15 Switch
14 Emitter
13
GND
12
11
Switch Collector
10
9 Driver Collector
(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.
Publication Order Number:
MC34163/D
MC34163, MC33163
100
VCC = 15 V
TA = 25°C
1) ton, RDT = ∞
2) ton, RDT = 20 k
3) ton, toff, RDT = 10 k
4) toff, RDT = 20 k
5) toff, RDT = ∞
10
1
2
3
4
5
1.0
0.1
1.0
CT, OSCILLATOR TIMING CAPACITOR (nF)
10
Figure 2. Output Switch On−Off Time
versus Oscillator Timing Capacitor
2.0
VCC = 15 V
CT = 620 pF
0
− 2.0
− 4.0
− 6.0
− 55
− 25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
100
Figure 3. Oscillator Frequency Change
versus Temperature
125
140
VCC = 15 V
VFB1 = 5.05 V
120
100
80
60
− 55 − 25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 4. Feedback Comparator 1 Input Bias
Current versus Temperature
1300
1280 VCC = 15 V
Vth Max = 1275 mV
1260 Vth Typ = 1250 mV
1240
Vth Min = 1225 mV
1220
1200
− 55 − 25 0 25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 5. Feedback Comparator 2 Threshold
Voltage versus Temperature
2.8
VCC = 15 V
Pin 16 = VCC + 5.0 V
2.4
2.0
1.6
1.2
− 55
− 25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
100
Figure 6. Bootstrap Input Current
Source versus Temperature
125
7.6
IZ = 25 mA
7.4
7.2
7.0
6.8
− 55
− 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
Figure 7. Bootstrap Input Zener Clamp
Voltage versus Temperature
125
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4
4페이지 MC34163, MC33163
Ipk Sense
RSC
VCC
Timing Capacitor
Shutdown
CT
RDT
GND
8
0.25 V
+−
Current
Limit
+
7
+
6 Oscillator
5
Thermal
R
Q
S
4 Latch
+
9 Driver Collector
10
Switch Collector
Q1 11
Q2
12
60
13
GND
Voltage Feedback 1
Voltage Feedback 2
LVI Output
3
2
1
+
+−
LVI
14
45 k
+ Feedback
+ +− Comparator
15
1.25 V 15 k
+
1.125 V
2.0 mA
16
+ 7.0 V
Switch Emitter
Bootstrap Input
(Bottom View)
+
−
Figure 19. Representative Block Diagram
=
Sink Only
Positive True Logic
1
Comparator Output
0
1.25 V
Timing Capacitor CT
0.55 V
1
Oscillator Output
0
On
Output Switch
Off
Nominal Output
Voltage Level
Output Voltage
t 9t
Startup
Quiescent Operation
Figure 20. Typical Operating Waveforms
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |