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PDF MC7808CT Data sheet ( Hoja de datos )
| Número de pieza | MC7808CT | |
| Descripción | (MC7800x Series) 1A Positive Voltage Regulator | |
| Fabricantes | ON Semiconductor | |
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( DataSheet : www.DataSheet4U.com )
MC7800, MC7800A, LM340,
LM340A Series, NCV7805
1.0 A Positive Voltage
Regulators
These voltage regulators are monolithic integrated circuits designed
as fixed–voltage regulators for a wide variety of applications
including local, on–card regulation. These regulators employ internal
current limiting, thermal shutdown, and safe–area compensation. With
adequate heatsinking they can deliver output currents in excess of
1.0 A. Although designed primarily as a fixed voltage regulator, these
devices can be used with external components to obtain adjustable
voltages and currents.
• Output Current in Excess of 1.0 A
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe–Area Compensation
• Output Voltage Offered in 2% and 4% Tolerance
• Available in Surface Mount D2PAK, DPAK and Standard 3–Lead
Transistor Packages
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Symbol Value
Input Voltage (5.0 – 18 V)
Input Voltage (24 V)
Power Dissipation
VI 35
40
Unit
Vdc
Case 221A (TO–220)
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
Case 369A (DPAK)
TA = 25°C
Thermal Resistance, Junction–to–Ambient
Thermal Resistance, Junction–to–Case
Storage Junction Temperature Range
Operating Junction Temperature
NOTE: ESD data available upon request.
PD
RθJA
RθJC
PD
RθJA
RθJA
PD
RθJA
RθJC
Tstg
TJ
Internally
Limited
65
5.0
W
°C/W
°C/W
Internally
Limited
See
Figure
14
5.0
W
°C/W
°C/W
Internally
Limited
92
5.0
W
°C/W
°C/W
–65 to
+150
°C
+150
°C
© Semiconductor Components Industries, LLC, 2002
www.DAaptrailS, h2e0e0t24U– .Rcoemv. 10
1
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1
2
3
TO–220
T SUFFIX
CASE 221A
Heatsink surface
connected to Pin 2.
D2PAK
Pin 1. Input
D2T SUFFIX
2. Ground
1
CASE 936
3. Output
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
1
3
DPAK
DT SUFFIX
CASE 369A
STANDARD APPLICATION
Input
Cin*
0.33 µF
MC78XX
Output
CO**
A common ground is required between the
input and the output voltages. The input voltage
must remain typically 2.0 V above the output
voltage even during the low point on the input
ripple voltage.
XX, These two digits of the type number
indicate nominal voltage.
* Cin is required if regulator is located an
appreciable distance from power supply
filter.
** CO is not needed for stability; however,
it does improve transient response. Values
of less than 0.1 µF could cause instability.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the wdewvwic.eDamtaarSkihneget4U.com
section on page 18 of this data sheet.
Publication Order Number:
MC7800/D
1 page  
MC7800, MC7800A, LM340, LM340A Series, NCV7805
ELECTRICAL CHARACTERISTICS (Vin = 11 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7806AC
Characteristic
Symbol Min Typ Max
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
8.6 Vdc ≤ Vin ≤ 21 Vdc
Line Regulation (Note 2)
8.6 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA
9.0 Vdc ≤ Vin ≤ 13 Vdc, IO = 1.0 A
Load Regulation (Note 2)
5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
250 mA ≤ IO ≤ 750 mA
Quiescent Current
Quiescent Current Change
9.0 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA
9.0 Vdc ≤ Vin ≤ 21 Vdc, IO = 1.0 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
Ripple Rejection
9.0 Vdc ≤ Vin ≤ 19 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
VO 5.88 6.0 6.12
VO 5.76 6.0 6.24
Regline
– 5.0 12
– 1.4 15
Regload
– 1.3 25
– 0.9 25
– 0.2 15
IB – 3.3 6.0
∆IB
– – 0.8
– – 0.8
– – 0.5
RR
58 65
–
VI – VO – 2.0 –
Vn – 10 –
Output Resistance (f = 1.0 kHz)
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Average Temperature Coefficient of Output Voltage
rO
ISC
Imax
TCVO
– 0.9 –
– 0.2 –
– 2.2 –
– –0.3 –
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
mΩ
A
A
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7808B
MC7808C
Characteristic
Symbol Min Typ Max Min Typ Max Unit
Output Voltage (TJ = 25°C)
VO 7.7 8.0 8.3 7.7 8.0 8.3 Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
10.5 Vdc ≤ Vin ≤ 23 Vdc
11.5 Vdc ≤ Vin ≤ 23 Vdc
VO Vdc
– – – 7.6 8.0 8.4
7.6 8.0 8.4
–
–
–
Line Regulation, TJ = 25°C, (Note 2)
10.5 Vdc ≤ Vin ≤ 25 Vdc
11 Vdc ≤ Vin ≤ 17 Vdc
Regline
mV
– 6.0 160 – 6.0 32
– 1.7 80 – 1.7 16
Load Regulation, TJ = 25°C (Note 2)
5.0 mA ≤ IO ≤ 1.5 A
Regload
–
1.4 160
–
1.4 35 mV
Quiescent Current
IB – 3.3 8.0 – 3.3 8.0 mA
Quiescent Current Change
10.5 Vdc ≤ Vin ≤ 25 Vdc
5.0 mA ≤ IO ≤ 1.0 A
∆IB mA
– – – – – 1.0
– – 0.5 – – 0.5
1. Tlow = 0°C for MC78XXAC, C, LM340AT–XX, LM340T–XX
= *40°C for MC78XXB, MC78XXAB, NCV7805
Thigh = +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX, NCV7805
2. Load and line 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.
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5 Page 
MC7800, MC7800A, LM340, LM340A Series, NCV7805
ELECTRICAL CHARACTERISTICS (Vin = 27 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7818AC
Characteristic
Symbol Min Typ Max
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
21 Vdc ≤ Vin ≤ 33 Vdc
Line Regulation (Note 2)
21 Vdc ≤ Vin ≤ 33 Vdc, IO = 500 mA
24 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A
24 Vdc ≤ Vin ≤ 30 Vdc, IO = 1.0 A, TJ = 25°C
20.6 Vdc ≤ Vin ≤ 33 Vdc, IO = 1.0 A, TJ = 25°C
Load Regulation (Note 2)
5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
250 mA ≤ IO ≤ 750 mA
Quiescent Current
Quiescent Current Change
21 Vdc ≤ Vin ≤ 33 Vdc, IO = 500 mA
21.5 Vdc ≤ Vin ≤ 30 Vdc, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
Ripple Rejection
22 Vdc ≤ Vin ≤ 32 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
VO 17.64 18 18.36
VO 17.3 18 18.7
Regline
– 9.5 22
– 3.2 25
– 3.2 10.5
– 8.0 22
Regload
– 2.0 25
– 1.8 25
– 1.5 15
IB – 3.5 6.0
∆IB
– – 0.8
– – 0.8
– – 0.5
RR
53 57
–
VI – VO – 2.0 –
Vn – 10 –
Output Resistance f = 1.0 kHz
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Average Temperature Coefficient of Output Voltage
rO
ISC
Imax
TCVO
– 1.3 –
– 0.2 –
– 2.2 –
– –1.5 –
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
mΩ
A
A
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7824B
MC7824C
Characteristic
Symbol Min Typ Max Min Typ Max Unit
Output Voltage (TJ = 25°C)
VO 23 24 25 23 24 25 Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
27 Vdc ≤ Vin ≤ 38 Vdc
28 Vdc ≤ Vin ≤ 38 Vdc
VO Vdc
– – – 22.8 24 25.2
22.8 24 25.2
–
–
–
Line Regulation, (Note 2)
27 Vdc ≤ Vin ≤ 38 Vdc
30 Vdc ≤ Vin ≤ 36 Vdc
Regline
mV
– 11.5 480 – 2.7 60
– 3.8 240 – 2.7 48
Load Regulation, (Note 2)
5.0 mA ≤ IO ≤ 1.5 A
Regload
–
2.1 480
–
4.4 65 mV
Quiescent Current
IB – 3.6 8.0 – 3.6 6.5 mA
Quiescent Current Change
27 Vdc ≤ Vin ≤ 38 Vdc
5.0 mA ≤ IO ≤ 1.0 A
∆IB mA
– – – – – 1.0
– – 0.5 – – 0.5
1. Tlow = 0°C for MC78XXAC, C, LM340AT–XX, LM340T–XX
= *40°C for MC78XXB, MC78XXAB, NCV7805
Thigh = +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX, NCV7805
2. Load and line 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.
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| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet MC7808CT.PDF ] | |
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