MC78T12CT 查看數據表（PDF） - Motorola => Freescale
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MC78T12CT Datasheet PDF : 12 Pages
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MC78T00 Series
ELECTRICAL CHARACTERISTICS (Vin = 13 V, IO = 3.0 A, 0°C ≤ TJ ≤ 125°C, PO ≤ Pmax [Note 1], unless otherwise noted.)
MC78T08C
Characteristics
Symbol
Min
Typ
Max
Unit
Output Voltage
(5.0 mA ≤ IO ≤ 3.0 A, TJ = +25°C)
(5.0 mA ≤ IO ≤ 3.0 A;
5.0 mA ≤ IO ≤ 2.0 A, 10.4 Vdc ≤ Vin ≤ 23 Vdc)
Line Regulation (Note 2)
(10.3 Vdc ≤ Vin ≤ 35 Vdc, IO = 5.0 mA, TJ = +25°C
10.3 Vdc ≤ Vin ≤ 35 Vdc, IO = 1.0 A, TJ = +25°C
11 Vdc ≤ Vin ≤ 17 Vdc, IO = 3.0 A, TJ = +25°C
10.7 Vdc ≤ Vin ≤ 23 Vdc, IO = 1.0 A)
Load Regulation (Note 2)
(5.0 mA ≤ IO ≤ 3.0 A, TJ = +25°C)
(5.0 mA ≤ IO ≤ 3.0 A)
VO
Vdc
7.7
8.0
8.3
7.6
8.0
8.4
Regline
–
4.0
35
mV
Regload
mV
–
10
30
–
15
80
Thermal Regulation
(Pulse = 10 ms, P = 20 W, TA = +25°C)
Regtherm
–
0.002 0.03 %VO/W
Quiescent Current
(5.0 mA ≤ IO ≤ 3.0 A, TJ = +25°C)
(5.0 mA ≤ IO ≤ 3.0 A)
Quiescent Current Change
(10.3 Vdc ≤ Vin ≤ 35 Vdc, IO = 5.0 mA, TJ = +25°C;
5.0 mA ≤ IO ≤ 3.0 A, TJ = +25°C;
10.7 Vdc ≤ Vin ≤ 23 Vdc, IO = 1.0 A)
Ripple Rejection
(11 Vdc ≤ Vin ≤ 21 Vdc, f = 120 Hz, IO = 2.0 A, TJ = 25°C)
IB
mA
–
3.5
5.0
–
4.0
6.0
∆IB
–
0.3
1.0
mA
RR
60
71
–
dB
Dropout Voltage (IO = 3.0 A, TJ = +25°C)
Output Noise Voltage
(10 Hz ≤ f ≤ 100 kHz, TJ = +25°C)
Output Resistance (f = 1.0 kHz)
Short Circuit Current Limit
(Vin = 35 Vdc, TJ = +25°C)
Peak Output Current (TJ = +25°C)
Average Temperature Coefficient of Output Voltage (IO = 5.0 mA)
Vin–VO
–
Vn
–
RO
–
ISC
–
Imax
–
TCVO
–
2.2
2.5
Vdc
10
–
µV/VO
2.0
–
mΩ
1.5
–
A
5.0
–
A
0.3
–
mV/°C
NOTES: 1. Although power dissipation is internally limited, specifications apply only for PO ≤ Pmax, Pmax = 25 W.
2. Line and load regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.
Pulse testing with low duty cycle is used.
MOTOROLA ANALOG IC DEVICE DATA
3
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