參數(shù)資料
型號(hào): MC7918
廠商: Motorola, Inc.
英文描述: THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS
中文描述: 三端負(fù)固定電壓調(diào)節(jié)器
文件頁(yè)數(shù): 2/12頁(yè)
文件大小: 186K
代理商: MC7918
MC7900
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
(TA = +25
°
C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Input Voltage (–5.0 V
VO
–18 V)
Input Voltage
(24 V)
VI
–35
–40
Vdc
Power Dissipation
Case 221A
TA = +25
°
C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Case 936 (D2PAK)
TA = +25
°
C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
PD
θ
JA
θ
JC
Internally Limited
65
5.0
W
°
C/W
°
C/W
PD
θ
JA
θ
JC
Tstg
TJ
Internally Limited
70
5.0
W
°
C/W
°
C/W
Storage Junction Temperature Range
–65 to +150
°
C
Junction Temperature
+150
°
C
THERMAL CHARACTERISTICS
Characteristics
Symbol
Max
Unit
Thermal Resistance, Junction–to–Ambient
R
θ
JA
R
θ
JC
65
°
C/W
Thermal Resistance, Junction–to–Case
5.0
°
C/W
MC7905C
ELECTRICAL CHARACTERISTICS
(VI = –10 V, IO = 500 mA, 0
°
C < TJ < +125
°
C, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = +25
°
C)
Line Regulation (Note 1)
(TJ = +25
°
C, IO = 100 mA)
–7.0 Vdc
VI
–25 Vdc
–8.0 Vdc
VI
–12 Vdc
(TJ = +25
°
C, IO = 500 mA)
–7.0 Vdc
VI
–25 Vdc
–8.0 Vdc
VI
–12 Vdc
Load Regulation, TJ = +25
°
C (Note 1)
5.0 mA
IO
1.5 A
250 mA
IO
750 mA
VO
–4.8
–5.0
–5.2
Vdc
Regline
7.0
2.0
35
8.0
50
25
100
50
mV
Regload
11
4.0
100
50
mV
Output Voltage
–7.0 Vdc
VI
–20 Vdc, 5.0 mA
IO
1.0 A, P
15 W
VO
–4.75
–5.25
Vdc
Input Bias Current (TJ = +25
°
C)
Input Bias Current Change
–7.0 Vdc
VI
–25 Vdc
5.0 mA
IO
1.5 A
Output Noise Voltage (TA = +25
°
C, 10 Hz
f
100 kHz)
Ripple Rejection (IO = 20 mA, f = 120 Hz)
Dropout Voltage
IO = 1.0 A, TJ = +25
°
C
IIB
IIB
4.3
8.0
mA
1.3
0.5
mA
Vn
RR
40
μ
V
70
dB
VI–VO
2.0
Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0
°
C
TJ
+125
°
C
VO/
T
–1.0
mV/
°
C
NOTE:
1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
NOTE:
1.
Pulse testing with low duty cycle is used.
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