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參數(shù)資料
| 型號： | MC79M12CT |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-Terminal 0.5A Negative Voltage Regulator |
| 中文描述： | 12 V FIXED NEGATIVE REGULATOR, PSFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 118K |
| 代理商： | MC79M12CT |
MC79M00
4
MOTOROLA ANALOG IC DEVICE DATA
MC79M15B, C
ELECTRICAL CHARACTERISTICS
(VI = –23 V, IO = 350 mA, Tlow to Thigh [Note 2], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25
°
C)
Line Regulation, TJ = 25
°
C (Note 1)
–17.5 Vdc
≥
VI
≥
–30 Vdc
–18 Vdc
≥
VI
≥
–28 Vdc
Load Regulation, TJ = 25
°
C (Note 1)
5.0 mA
≤
IO
≤
500 mA
VO
–14.4
–15
–15.6
Vdc
Regline
–
–
5.0
3.0
80
50
mV
Regload
–
30
240
mV
Output Voltage
–17.5 Vdc
≥
VI
≥
–30 Vdc, 5.0 mA
≤
IO
≤
350 mA
VO
–14.25
–
–15.75
Vdc
Input Bias Current (TJ = 25
°
C)
Input Bias Current Change
–17.5 Vdc
≥
VI
≥
–30 Vdc, IO = 350 mA
5.0 mA
≤
IO
≤
350 mA, VI = –23 V
Output Noise Voltage, TA = 25
°
C, 10 Hz
≤
f
≤
100 kHz
Ripple Rejection (f = 120 Hz)
IIB
IIB
–
4.4
8.0
mA
–
–
–
–
0.4
0.4
mA
Vn
RR
–
90
–
μ
V
54
60
–
dB
Dropout Voltage
IO = 500 mA, TJ = 25
°
C
VI–VO
–
1.1
–
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0
°
C
≤
TJ
≤
125
°
C
VO/
T
–
–1.0
–
mV/
°
C
NOTES:
1.Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. Pulse
testing with low duty cycle is used.
2.B = Tlow to Thigh, –40
°
C < TJ < 125
°
C
C = Tlow to Thigh, 0
°
C < TJ < 125
°
C
R
θ
,
J
J
°
PD
Figure 1. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
40
50
60
70
80
90
100
0
10
20
30
25
15
5.0
L, LENGTH OF COPPER (mm)
Minimum
Size Pad
L
Free Air
Mounted
Vertically
R
θ
JA
2.0 oz. Copper
0
0.4
0.8
1.2
1.6
2.0
2.4
PD(max) for TA = 50
°
C
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