Datasheet

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 P
D
Internally Limited W
Thermal Resistance, Junction−to−Ambient
q
JA
65 °C/W
Thermal Resistance, Junction−to−Case
q
JC
5.0 °C/W
Case 936 (D
2
PAK)
T
A
= +25°C P
D
Internally Limited W
Thermal Resistance, Junction−to−Ambient
q
JA
70 °C/W
Thermal Resistance, Junction−to−Case
q
JC
5.0 °C/W
Storage Junction Temperature Range T
stg
−65 to +150 °C
Junction Temperature T
J
+150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
*This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL_STD_883, Method 3015
Machine Model Method 200 V
MC7905B, MC7905C
ELECTRICAL CHARACTERISTICS
(V
I
= −10 V, I
O
= 500 mA, Tlow* < 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
DI
IB
−
−
−
−
1.3
0.5
mA
Output Noise Voltage (T
A
= +25°C, 10 Hz ≤ f ≤ 100 kHz) V
n
− 40 −
mV
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
− 1.3 −
Vdc
Average Temperature Coefficient of Output Voltage
I
O
= 5.0 mA, Tlow* ≤ T
J
≤ +125°C
DV
O
/DT
− −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.
*Tlow = −40°C for MC7905B and Tlow = 0°C for MC7905C.