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Teilenummer | 7805BT |
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Beschreibung | MC7805BT | |
Hersteller | ON Semiconductor | |
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Gesamt 30 Seiten www.DataSheet4U.com
MC7800, MC7800A,
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−3, DPAK−3 and Standard
3−Lead Transistor Packages
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted)
Value
Unit
Rating
Symbol 369C 221A 936
Input Voltage
(5.0 − 18 V)
(24 V)
VI
35 Vdc
40
Power Dissipation
Thermal Resistance,
Junction−to−Ambient
PD
RqJA
Internally Limited
W
92 65 Figure °C/W
14
Thermal Resistance,
Junction−to−Case
RqJC 5.0 5.0 5.0 °C/W
Storage Junction Temperature
Range
Tstg
−65 to +150
°C
Operating Junction Temperature
TJ
+150
°C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
*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.
© Semiconductor Components Industries, LLC, 2005
April, 2005 − Rev. 14
1
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1
2
3
TO−220−3
T SUFFIX
CASE 221A
Heatsink surface
connected to Pin 2.
Pin 1. Input
D2PAK−3
2. Ground D2T SUFFIX
1
3. Output
CASE 936
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
4
12
3
DPAK−3
DT SUFFIX
CASE 369C
STANDARD APPLICATION
Input
Cin*
0.33 mF
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 mF could cause instability.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 22 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 28 of this data sheet.
Publication Order Number:
MC7800/D
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MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (Vin = 11 V, IO = 1.0 A, TJ = Tlow to Thigh (Note 7), unless otherwise noted)
MC7806AC
Characteristic
Symbol Min Typ Max Unit
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 8)
8.6 Vdc ≤ Vin ≤ 25 Vdc, IO = 500 mA
9.0 Vdc ≤ Vin ≤ 13 Vdc, IO = 1.0 A
Load Regulation (Note 8)
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
VO 5.88 6.0 6.12 Vdc
VO 5.76 6.0 6.24 Vdc
Regline
mV
− 5.0 12
− 1.4 15
Regload
mV
− 1.3 25
− 0.9 25
− 0.2 15
IB − 3.3 6.0 mA
DIB mA
− − 0.8
− − 0.8
− − 0.5
RR
58 65
− dB
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
VI − VO − 2.0 − Vdc
Vn − 10 − mV/VO
Output Resistance (f = 1.0 kHz)
rO − 0.9 − mW
Short Circuit Current Limit (TA = 25°C)
ISC − 0.2 − A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax − 2.2 − A
Average Temperature Coefficient of Output Voltage
TCVO
− −0.3 − mV/°C
7. Tlow = 0°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C, NCV7805
= *40°C for MC78XXB, MC78XXAB, NCV7805
8. 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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MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 1.0 A, TJ = Tlow to Thigh (Note 18), unless otherwise noted)
MC7812AB/MC7812AC
Characteristic
Symbol
Min
Typ
Max Unit
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
14.8 Vdc ≤ Vin ≤ 27 Vdc
Line Regulation (Note 19)
14.8 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA
16 Vdc ≤ Vin ≤ 22 Vdc, IO = 1.0 A
14.5 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C
Load Regulation (Note 19)
5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
Quiescent Current
Quiescent Current Change
15 Vdc ≤ Vin ≤ 30 Vdc, IO = 500 mA
14.8 Vdc ≤ Vin ≤ 27 Vdc, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A, TJ = 25°C
Ripple Rejection
VO
11.75
12
12.25
Vdc
VO 11.5 12 12.5 Vdc
Regline
Regload
IB
DIB
RR
−
−
−
−
−
−
−
−
−
55
mV
3.8 18
2.2 20
6.0 120
mV
− 25
− 25
3.4 6.0 mA
mA
− 0.8
− 0.8
− 0.5
60 − dB
15 Vdc ≤ Vin ≤ 25 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
VI − VO
−
2.0
− Vdc
Vn − 10 − mV/VO
Output Resistance (f = 1.0 kHz)
rO − 1.1 − mW
Short Circuit Current Limit (TA = 25°C)
ISC − 0.2 − A
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Imax − 2.2 − A
Average Temperature Coefficient of Output Voltage
TCVO − −0.8 − mV/°C
18. Tlow = 0°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C, NCV7805
= *40°C for MC78XXB, MC78XXAB, NCV7805
19. 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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Seiten | Gesamt 30 Seiten | |
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