|
|
|
부품번호 | MC78M20CDT 기능 |
|
|
기능 | THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS | ||
제조업체 | Motorola Semiconductors | ||
로고 | |||
Three-Terminal
Medium Current Positive
Voltage Regulators
The MC78M00/MC78M00A Series positive voltage regulators are
identical to the popular MC7800 Series devices, except that they are
specified for only half the output current. Like the MC7800 devices, the
MC78M00 three–terminal regulators are intended for local, on–card voltage
regulation.
Internal current limiting, thermal shutdown circuitry and safe–area
compensation for the internal pass transistor combine to make these
devices remarkably rugged under most operating conditions. Maximum
output current, with adequate heatsinking is 500 mA.
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe–Area Compensation
• MC78M00A High Accuracy (±2%) Available for 5.0 V, 8.0 V, 12 V
and 15 V
• Previous Commerical Temperature Range has been extended to a
Junction Temperature Range of –40°C to +125°C
Representative Schematic Diagram
1.0 k 1.0 k
Input
210
300
3.6
k
6.4
k
6.7
V 16 k
1.0 k
3.0 k
5.6 k
100
200
300
40
pF
6.0 k
50 200
0.24
13
Output
2.0 k 3.9 k
Order this document by MC78M00/D
MC78M00
MC78M00A
Series
THREE–TERMINAL MEDIUM
CURRENT POSITIVE FIXED
VOLTAGE REGULATORS
SEMICONDUCTOR
TECHNICAL DATA
T SUFFIX
PLASTIC PACKAGE
CASE 221A
(TO–220)
Heatsink surface
connected to Pin 2.
Pin 1. Input
2. Ground
3. Output
1
2
3
1
3
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
12 3
DT–1 SUFFIX
PLASTIC PACKAGE
CASE 369
(DPAK)
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
6.0 2.8 k
k
Gnd
This device contains 28 active transistors.
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC78M05AC
MC78M05C
MC78M06C
MC78M08AC
MC78M08C
5.0 V
5.0 V
6.0 V
8.0 V
8.0 V
MC78M09C
MC78M12AC
MC78M12C
MC78M15AC
MC78M15C
9.0 V
12 V
12 V
15 V
15 V
MC78M18C
MC78M20C
MC78M24C
18 V
20 V
24 V
MOTOROLA ANALOG IC DEVICE DATA
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC78MXXCDT
MC78MXXACDT*
MC78MXXCT
MC78MXXACT*
TJ = – 40° to +125°C
DPAK
TO–220
XX Indicates nominal voltage.
* Available in 5.0, 8.0, 12 and 15 V devices.
© Motorola, Inc. 1997
Rev 6
1
MC78M00 MC78M00A Series
MC78M09C ELECTRICAL CHARACTERISTICS (VI = 15 V, IO = 350 mA, –40°C < TJ < 125°C, PD ≤ 5.0 W, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = 25°C)
Output Voltage Variation
(11.5 Vdc ≤ VI ≤ 23 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
Line Regulation
(TJ = 25°C, 11.5 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA)
Load Regulation
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
Input Bias Current (TJ = 25°C)
Quiescent Current Change
(11.5 Vdc ≤ VI ≤ 25 Vdc, IO = 200 mA)
(5.0 mA ≤ IO ≤ 350 mA)
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Ripple Rejection
(IO = 100 mA, f = 120 Hz, 12.5 V ≤VI ≤ 22.5 V)
(IO = 300 mA, f = 120 Hz, 12.5 V ≤VI ≤ 22.5 V, TJ = 25°C)
Dropout Voltage
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V)
Average Temperature Coefficient of Output Voltage
(IO = 5.0 mA)
Peak Output Current
(TJ = 25°C)
VO 8.64 9.0 9.45 Vdc
VO 8.55 – 9.45 Vdc
Regline
–
6.0 50 mV
Regload
IIB
∆IIB
Vn
RR
VI–VO
–
–
–
–
–
–
56
56
–
mV
25 180
10 90
3.2 6.0 mA
mA
– 0.8
– 0.5
52 – µV
dB
––
80 –
2.0 – Vdc
IOS – 50 – mA
∆VO/∆T – ±0.2 – mV/°C
IO – 700 – mA
MC78M12C/AC ELECTRICAL CHARACTERISTICS (VI = 19 V, IO = 350 mA, –40°C < TJ < 125°C, PD ≤ 5.0 W,
unless otherwise noted.)
Characteristics
Symbol Min Typ
Output Voltage (TJ = 25°C)
MC78M12C
MC78M12AC
VO
11.50
12
11.76
12
Output Voltage Variation
(14.5 Vdc ≤ VI ≤ 27 Vdc, 5.0 mA ≤ IO ≤ 350 mA)
MC78M12C
MC78M12AC
VO
11.4 –
11.5 –
Line Regulation
(TJ = 25°C, 14.5 Vdc ≤ VI ≤ 30 Vdc, IO = 200 mA)
Load Regulation
(TJ = 25°C, 5.0 mA ≤ IO ≤ 500 mA)
(TJ = 25°C, 5.0 mA ≤ IO ≤ 200 mA)
Input Bias Current (TJ = 25°C)
Quiescent Current Change
(14.5 Vdc ≤ VI ≤ 30 Vdc, IO = 200 mA)
(5.0 mA ≤ IO ≤ 350 mA)
Output Noise Voltage (TA = 25°C, 10 Hz ≤ f ≤ 100 kHz)
Regline
Regload
IIB
∆IIB
Vn
–
–
–
–
–
–
–
8.0
25
10
3.2
–
–
75
Ripple Rejection
(IO = 100 mA, f = 120 Hz, 15 V ≤VI ≤ 25 V)
(IO = 300 mA, f = 120 Hz, 15 V ≤VI ≤ 25 V, TJ = 25°C)
Dropout Voltage
(TJ = 25°C)
Short Circuit Current Limit (TJ = 25°C, VI = 35 V)
Average Temperature Coefficient of Output Voltage
(IO = 5.0 mA)
Peak Output Current
(TJ = 25°C)
RR
55 –
55 80
VI–VO – 2.0
IOS – 50
∆VO/∆T – ±0.3
IO – 700
Max
12.50
12.24
12.6
12.5
50
240
120
6.0
0.8
0.5
–
–
–
–
–
–
–
Unit
Vdc
Vdc
mV
mV
mA
mA
µV
dB
Vdc
mA
mV/°C
mA
4 MOTOROLA ANALOG IC DEVICE DATA
4페이지 MC78M00 MC78M00A Series
DEFINITIONS
Line Regulation – The change in output voltage for a
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
Load Regulation – The change in output voltage for a
change in load current at constant chip temperature.
Maximum Power Dissipation – The maximum total
device dissipation for which the regulator will operate within
specifications.
Input Bias Current – That part of the input current that is
not delivered to the load.
Output Noise Voltage – The rms AC voltage at the
output, with constant load and no input ripple, measured over
a specified frequency range.
Long Term Stability – Output voltage stability under
accelerated life test conditions with the maximum rated
voltage listed in the devices’ electrical characteristics and
maximum power dissipation.
Figure 1. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
100
Free Air
PD(max) for TA = 50°C
2.4
90 Mounted
2.0
Vertically
80
Minimum
70 Size Pad
60
2.0 oz. Copper
L
1.6
ÎÎÎÎÎÎL 1.2
ÎÎÎÎÎÎ 0.8
50 0.4
RθJA
40 0
0 5.0 10 15 20 25 30
L, LENGTH OF COPPER (mm)
Figure 2. Worst Case Power Dissipation
versus Ambient Temperature (TO–220)
10
5.0
θHS = 10°C/W
Infinite Heat
Sink
3.0 θHS = 20°C/W
2.0
No Heat Sink
1.0
0.5
0.3
0.2 θJC = 5°C/W
PD(max) = 7.52 W
0.1
25 50
75
100 125
TA, AMBIENT TEMPERATURE (°C)
150
MOTOROLA ANALOG IC DEVICE DATA
7
7페이지 | |||
구 성 | 총 12 페이지수 | ||
다운로드 | [ MC78M20CDT.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
MC78M20CDT | THREE-TERMINAL MEDIUM CURRENT POSITIVE FIXED VOLTAGE REGULATORS | Motorola Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |