參數(shù)資料
型號(hào): MC78M08A
廠商: ON SEMICONDUCTOR
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: 500 mA Positive Voltage Regulators
中文描述: 500毫安正電壓穩(wěn)壓器
文件頁(yè)數(shù): 6/16頁(yè)
文件大?。?/td> 178K
代理商: MC78M08A
MC78M00, MC78M00A Series
http://onsemi.com
6
MC78M20C/B ELECTRICAL CHARACTERISTICS
(V
I
= 29 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
19.2
20
20.8
Vdc
Output Voltage Variation
(23 Vdc
V
I
35 Vdc, 5.0 mA
I
O
350 mA)
V
O
19
-
21
Vdc
Line Regulation
(T
J
= 25
°
C, 23 Vdc
V
I
35 Vdc, I
O
= 200 mA)
Reg
line
-
10
50
mV
Load Regulation
(T
J
= 25
°
C, 5.0 mA
I
O
500 mA)
(T
J
= 25
°
C, 5.0 mA
I
O
200 mA)
Input Bias Current (T
J
= 25
°
C)
Reg
load
mV
-
-
30
10
400
200
I
IB
-
3.2
6.5
mA
Quiescent Current Change
(23 Vdc
V
I
35 Vdc, I
O
= 200 mA)
(5.0 mA
I
O
350 mA)
Output Noise Voltage (T
A
= 25
°
C, 10 Hz
f
100 kHz)
I
IB
mA
-
-
-
-
0.8
0.5
V
n
-
110
-
V
Ripple Rejection
(I
O
= 100 mA, f = 120 Hz, 24 V
V
I
34 V)
(I
O
= 300 mA, f = 120 Hz, 24 V
V
I
34 V, T
J
= 25
°
C)
RR
dB
52
52
-
70
-
-
Dropout Voltage
(T
J
= 25
°
C)
Short Circuit Current Limit (T
J
= 25
°
C, V
I
= 35 V)
V
I
-V
O
-
2.0
-
Vdc
I
OS
-
50
±
0.5
-
mA
mV/
°
C
Average Temperature Coefficient of Output Voltage
(I
O
= 5.0 mA)
V
O
/ T
-
-
Peak Output Current
(T
J
= 25
°
C)
I
O
-
700
-
mA
MC78M24C/B ELECTRICAL CHARACTERISTICS
(V
I
= 33 V, I
O
= 350 mA, T
J
= T
low
to T
high
, P
D
5.0 W,
unless otherwise noted) (Note 6)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
23
24
25
Vdc
Output Voltage Variation
(27 Vdc
V
I
38 Vdc, 5.0 mA
I
O
350 mA)
V
O
22.8
-
25.2
Vdc
Line Regulation
(T
J
= 25
°
C, 27 Vdc
V
I
38 Vdc, I
O
= 200 mA)
Reg
line
-
10
50
mV
Load Regulation
(T
J
= 25
°
C, 5.0 mA
I
O
500 mA)
(T
J
= 25
°
C, 5.0 mA
I
O
200 mA)
Input Bias Current (T
J
= 25
°
C)
Reg
load
mV
-
-
30
10
480
240
I
IB
-
3.2
7.0
mA
Quiescent Current Change
(27 Vdc
V
I
38 Vdc, I
O
= 200 mA)
(5.0 mA
I
O
350 mA)
Output Noise Voltage (T
A
= 25
°
C, 10 Hz
f
100 kHz)
I
IB
mA
-
-
-
-
0.8
0.5
V
n
-
170
-
V
Ripple Rejection
(I
O
= 100 mA, f = 120 Hz, 28 V
V
I
38 V)
(I
O
= 300 mA, f = 120 Hz, 28 V
V
I
38 V, T
J
= 25
°
C)
RR
dB
50
50
-
70
-
-
Dropout Voltage
(T
J
= 25
°
C)
Short Circuit Current Limit (T
J
= 25
°
C)
V
I
-V
O
-
2.0
-
Vdc
I
OS
-
50
±
0.5
-
mA
mV/
°
C
Average Temperature Coefficient of Output Voltage
(I
O
= 5.0 mA)
V
O
/ T
-
-
Peak Output Current
(T
J
= 25
°
C)
6. T
low
= 0
°
C for MC78MxxAC, C
= -40
°
C for MC78MxxAB, B
I
O
-
700
-
mA
T
high
= +125
°
C for MC78MxxAB, AC, B, C
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