MC7900
MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.)
Rating
Symbol
Value
Input Voltage (– 5.0 V ≥ VO ≥ –18 V)
VI
– 35
Input Voltage (24 V)
– 40
Power Dissipation
Case 221A
TA = +25°C
PD
Thermal Resistance, Junction–to–Ambient
θJA
Thermal Resistance, Junction–to–Case
θJC
Case 936 (D2PAK)
TA = +25°C
PD
Thermal Resistance, Junction–to–Ambient
θJA
Thermal Resistance, Junction–to–Case
θJC
Storage Junction Temperature Range
Tstg
Junction Temperature
TJ
Internally Limited
65
5.0
Internally Limited
70
5.0
– 65 to +150
+150
THERMAL CHARACTERISTICS
Characteristics
Symbol
Max
Thermal Resistance, Junction–to–Ambient
RθJA
65
Thermal Resistance, Junction–to–Case
RθJC
5.0
Unit
Vdc
W
°C/W
°C/W
W
°C/W
°C/W
°C
°C
Unit
°C/W
°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
mV
–
7.0
50
–
2.0
25
–
–
Regload
–
–
35
100
8.0
50
mV
11
100
4.0
50
Output Voltage
–7.0 Vdc ≥ VI ≥ – 20 Vdc, 5.0 mA ≤ IO ≤ 1.0 A, P ≤ 15 W
VO
Vdc
– 4.75
–
– 5.25
Input Bias Current (TJ = +25°C)
Input Bias Current Change
–7.0 Vdc ≥ VI ≥ – 25 Vdc
5.0 mA ≤ IO ≤ 1.5 A
IIB
–
4.3
8.0
mA
∆IIB
mA
–
–
1.3
–
–
0.5
Output Noise Voltage (TA = +25°C, 10 Hz ≤ f ≤ 100 kHz)
Vn
–
40
–
µV
Ripple Rejection (IO = 20 mA, f = 120 Hz)
RR
–
70
–
dB
Dropout Voltage
IO = 1.0 A, TJ = +25°C
VI–VO
Vdc
–
2.0
–
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, 0°C ≤ TJ ≤ +125°C
∆VO/∆T
mV/°C
–
–1.0
–
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.
2
MOTOROLA ANALOG IC DEVICE DATA