MC79M00 Datasheet, PDF (4/8 Pages) Motorola, Inc – THREE-TERMINAL NEGATIVE FIXED VOLTAGE REGULATORS

MC79M00 Series
MC79M15B, C
ELECTRICAL CHARACTERISTICS (V_I = − 23 V, I_O = 350 mA, T_low to T_high (Note 8), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max Unit
Output Voltage (T_J = 25°C)
Line Regulation, T_J = 25°C (Note 7)
−17.5 Vdc ≥ V_I ≥ −30 Vdc
−18 Vdc ≥ V_I ≥ −28 Vdc
V_O
−14.4 −15 −15.6 Vdc
Reg_line
mV
−
5.0
80
−
3.0
50
Load Regulation, T_J = 25°C (Note 7)
5.0 mA ≤ I_O ≤ 500 mA
Reg_load
−
mV
30
240
Output Voltage
−17.5 Vdc ≥ V_I ≥ −30 Vdc, 5.0 mA ≤ I_O ≤ 350 mA
V_O
Vdc
−14.25
−
−15.75
Input Bias Current (T_J = 25°C)
Input Bias Current Change
−17.5 Vdc ≥ V_I ≥ −30 Vdc, I_O = 350 mA
5.0 mA ≤ I_O ≤ 350 mA, V_I = −23 V
I_IB
−
4.4
8.0
mA
DI_IB
mA
−
−
0.4
−
−
0.4
Output Noise Voltage, T_A = 25°C, 10 Hz ≤ f ≤ 100 kHz
Ripple Rejection (f = 120 Hz)
V_n
−
90
−
mV
RR
54
60
−
dB
Dropout Voltage
I_O = 500 mA, T_J = 25°C
V_I−V_O
Vdc
−
1.1
−
Average Temperature Coefficient of Output Voltage
I_O = 5.0 mA, 0°C ≤ T_J ≤ 125°C
DV_O/DT
mV/°C
−
−1.0
−
7. Load and line regulation are specified at constant temperature. Change in V_O due to heating effects must be taken into account separately.
Pulse testing with low duty cycle is used.
8. B = T_low to T_high, −40°C < T_J < 125°C
C = T_low to T_high, 0°C < T_J < 125°C
100
2.4
Free Air
P_D(max) for T_A = 50°C
90
Mounted
2.0
Vertically
80
Minimum
70
Size Pad
60
2.0 oz. Copper
L
1.6
ÎÎÎÎÎÎÎÎ _L
1.2
ÎÎÎÎÎÎÎÎ_0.8
50
0.4
R_qJA
40
0
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 1. DPAK−3 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
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