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參數(shù)資料
| 型號： | MC7918 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1.0 A Negative Voltage Regulators(1.0 A 負向穩(wěn)壓器) |
| 中文描述： | 1.0負電壓穩(wěn)壓器（1.0甲負向穩(wěn)壓器） |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 124K |
| 代理商： | MC7918 |
MC7900 Series
http://onsemi.com
2
MAXIMUM RATINGS
(T
A
= +25
°
C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Input Voltage (–5.0 V
≥
V
O
≥
–18 V)
Input Voltage
(24 V)
V
I
–35
–40
Vdc
Power Dissipation
Case 221A
T
A
= +25
°
C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 936 (D
2
PAK)
T
A
= +25
°
C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
P
D
θ
JA
θ
JC
Internally Limited
65
5.0
W
°
C/W
°
C/W
P
D
θ
JA
θ
JC
Internally Limited
70
5.0
W
°
C/W
°
C/W
Storage Junction Temperature Range
T
stg
–65 to +150
°
C
Junction Temperature
T
J
+150
°
C
THERMAL CHARACTERISTICS
Characteristics
Symbol
Max
Unit
Thermal Resistance, Junction–to–Ambient
R
θ
JA
65
°
C/W
Thermal Resistance, Junction–to–Case
R
θ
JC
5.0
°
C/W
MC7905C
ELECTRICAL CHARACTERISTICS
(V
I
= –10 V, I
O
= 500 mA, 0
°
C < T
J
< +125
°
C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= +25
°
C)
V
O
–4.8
–5.0
–5.2
Vdc
Line Regulation (Note 1)
(T
J
= +25
°
C, I
O
= 100 mA)
–7.0 Vdc
≥
V
I
≥
–25 Vdc
–8.0 Vdc
≥
V
I
≥
–12 Vdc
(T
J
= +25
°
C, I
O
= 500 mA)
–7.0 Vdc
≥
V
I
≥
–25 Vdc
–8.0 Vdc
≥
V
I
≥
–12 Vdc
Reg
line
–
–
–
–
7.0
2.0
35
8.0
50
25
100
50
mV
Load Regulation, T
J
= +25
°
C (Note 1)
5.0 mA
≤
I
O
≤
1.5 A
250 mA
≤
I
O
≤
750 mA
Reg
load
–
–
11
4.0
100
50
mV
Output Voltage
–7.0 Vdc
≥
V
I
≥
–20 Vdc, 5.0 mA
≤
I
O
≤
1.0 A, P
≤
15 W
V
O
–4.75
–
–5.25
Vdc
Input Bias Current (T
J
= +25
°
C)
I
IB
–
4.3
8.0
mA
Input Bias Current Change
–7.0 Vdc
≥
V
I
≥
–25 Vdc
5.0 mA
≤
I
O
≤
1.5 A
I
IB
–
–
–
–
1.3
0.5
mA
Output Noise Voltage (T
A
= +25
°
C, 10 Hz
≤
f
≤
100 kHz)
V
n
–
40
–
μ
V
Ripple Rejection (I
O
= 20 mA, f = 120 Hz)
RR
–
70
–
dB
Dropout Voltage
I
O
= 1.0 A, T
J
= +25
°
C
V
I
–V
O
–
2.0
–
Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, 0
°
C
≤
T
J
≤
+125
°
C
V
O
/
T
–
–1.0
–
mV/
°
C
1. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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