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參數(shù)資料
| 型號： | MC78M20CT |
| 廠商： | MOTOROLA INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 20 V FIXED POSITIVE REGULATOR, PSFM3 |
| 封裝： | PLASTIC, TO-220, 3 PIN |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 189K |
| 代理商： | MC78M20CT |
MC78M00 MC78M00A Series
DEFINITIONS
7
MOTOROLA ANALOG IC DEVICE DATA
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
Mounted
Vertically
Figure 2. Worst Case Power Dissipation
versus Ambient Temperature (TO–220)
,
D
θ
JC = 5
°
C/W
PD(max) = 7.52 W
No Heat Sink
θ
HS = 20
°
C/W
θ
HS = 10
°
C/W
Infinite Heat
Sink
R
θ
,
J
J
°
L, LENGTH OF COPPER (mm)
PD
R
θ
JA
10
5.0
3.0
2.0
1.0
0.5
0.3
0.2
0.1
40
50
60
70
80
90
TA, AMBIENT TEMPERATURE (
°
C)
25
50
75
100
125
150
0
10
20
30
25
15
5.0
L
2.0 oz. Copper
PD(max) for TA = 50
°
C
0
0.4
0.8
1.2
1.6
2.0
2.4
Minimum
Size Pad
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC78M20CTD | 制造商:ONS 功能描述:ON SEMICONDUCTOR NXC4C |
| MC78M20CTG | 功能描述:線性穩(wěn)壓器 - 標準 20V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節(jié): 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M24BT | 功能描述:線性穩(wěn)壓器 - 標準 24V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節(jié): 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M24BTG | 功能描述:線性穩(wěn)壓器 - 標準 24V 500mA Positive RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調節(jié): 最大輸入電壓:5.5 V 線路調整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MC78M24CP | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
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