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PDF MC7912AC Data sheet ( Hoja de datos )

Número de pieza MC7912AC
Descripción 1.0A Negative Voltage Regulators
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MC7900 Series
1.0 A Negative Voltage
Regulators
The MC7900 series of fixed output negative voltage regulators are
intended as complements to the popular MC7800 series devices.
These negative regulators are available in the same sevenvoltage
options as the MC7800 devices. In addition, one extra voltage option
commonly employed in MECL systems is also available in the
negative MC7900 series.
Available in fixed output voltage options from 5.0 V to 24 V,
these regulators employ current limiting, thermal shutdown, and
safearea compensation making them remarkably rugged under
most operating conditions. With adequate heatsinking they can deliver
output currents in excess of 1.0 A.
No External Components Required
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor SafeArea Compensation
Available in 2% Voltage Tolerance (See Ordering Information)
PbFree Package May be Available. The GSuffix Denotes a
PbFree Lead Finish
2.0 k 8.0 k
Gnd
3.6 k 1.0 k 4.0 k R1
1.2 k 1.6 k
R2
10 k
20 pF
10 pF 10 k
2.0 k 20 k 20 k
1.1 k
This device contains 26 active transistors.
240
750
Figure 1. Representative Schematic Diagram
VO
0.3
VI
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TO220
T SUFFIX
CASE 221AB
Heatsink surface
connected to Pin 2.
1
2
3
Pin 1. Ground
2. Input
3. Output
D2PAK
D2T SUFFIX
CASE 936
12
3
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
STANDARD APPLICATION
Input
Cin*
0.33 mF
MC79XX
Output
CO**
1.0 mF
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above more negative even
during the high point of 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 improve stability and transient response.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
July, 2013 Rev. 18
1
Publication Order Number:
MC7900/D

1 page




MC7912AC pdf
MC7900 Series
MC7912B, MC7912C
ELECTRICAL CHARACTERISTICS (VI = 19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 4)
(TJ = +25°C, IO = 100 mA)
14.5 Vdc VI 30 Vdc
16 Vdc VI 22 Vdc
(TJ = +25°C, IO = 500 mA)
14.5 Vdc VI 30 Vdc
16 Vdc VI 22 Vdc
Load Regulation, TJ = +25°C (Note 4)
5.0 mA IO 1.5 A
250 mA IO 750 mA
Output Voltage
14.5 Vdc VI 27 Vdc, 5.0 mA IO 1.0 A, P 15 W
VO 11.5 12 12.5 Vdc
Regline
mV
13 120
6.0 60
55 240
24 120
Regload
mV
46 240
17 120
VO Vdc
11.4 − −12.6
Input Bias Current (TJ = +25°C)
Input Bias Current Change
14.5 Vdc VI 30 Vdc
5.0 mA IO 1.5 A
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz)
Ripple Rejection (IO = 20 mA, f = 120 Hz)
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
Average Temperature Coefficient of Output Voltage
IO = 5.0 mA, Tlow* TJ +125°C
IIB 4.4 8.0 mA
DIIB mA
− − 1.0
− − 0.5
Vn 75 mV
RR 61 dB
VIVO 1.3 Vdc
DVO/DT
mV/°C
− −1.0
MC7912AC
ELECTRICAL CHARACTERISTICS (VI = 19 V, IO = 500 mA, Tlow* < TJ < +125°C, unless otherwise noted.)
Characteristics
Symbol Min Typ Max Unit
Output Voltage (TJ = +25°C)
Line Regulation (Note 4)
16 Vdc VI 22 Vdc; IO = 1.0 A, TJ = +25°C
16 Vdc VI 22 Vdc; IO = 1.0 A
14.8 Vdc VI 30 Vdc; IO = 500 mA
14.5 Vdc VI 27 Vdc; IO = 1.0 A, TJ = +25°C
VO 11.75 12 12.25 Vdc
Regline
mV
6.0 60
24 120
24 120
13 120
Load Regulation (Note 4)
5.0 mA IO 1.5 A, TJ = +25°C
250 mA IO 750 mA
5.0 mA IO 1.0 A
Output Voltage
14.8 Vdc VI 27 Vdc, 5.0 mA IO 1.0 A, P 15 W
Regload
mV
46 150
17 75
35 150
VO Vdc
11.5 − −12.5
Input Bias Current
IIB 4.4 8.0 mA
Input Bias Current Change
15 Vdc VI 30 Vdc
5.0 mA IO 1.0 A
5.0 mA IO 1.5 A, TJ = +25°C
DIIB mA
− − 0.8
− − 0.5
− − 0.5
Output Noise Voltage (TA = +25°C, 10 Hz f 100 kHz)
Vn 75 mV
Ripple Rejection (IO = 20 mA, f = 120 Hz)
RR 61 dB
Dropout Voltage (IO = 1.0 A, TJ = +25°C)
VIVO 1.3 Vdc
Average Temperature Coefficient of Output Voltage
IO = 5.0 A, Tlow* TJ +125°C
DVO/DT
mV/°C
− −1.0
4. 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.
*Tlow = 40°C for MC7912B and Tlow = 0°C for MC7912C.
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MC7912AC arduino
Device
MC7905ACD2T
MC7905ACD2TG
MC7905ACD2TR4
MC7905ACD2TR4G
MC7905ACT
MC7905ACTG
MC7905BD2T
MC7905BD2TG
MC7905BD2TR4
MC7905BD2TR4G
MC7905BT
MC7905BTG
MC7905CD2T
MC7905CD2TG
MC7905CD2TR4
MC7905CD2TR4G
MC7905CT
MC7905CTG
MC7905.2CT
MC7905.2CTG
MC7906CD2T
MC7906CD2TG
MC7906CT
MC7906CTG
MC7908ACT
MC7908ACTG
MC7908CD2T
MC7908CD2TG
MC7908CD2TR4
MC7908CD2TR4G
MC7908CT
MC7908CTG
MC7900 Series
Nominal
Output Voltage
5.0 V
5.2 V
6.0 V
8.0 V
ORDERING INFORMATION
Output Voltage
Tolerance
2%
4%
4%
4%
2%
4%
Package
D2PAK
D2PAK
(PbFree)
D2PAK
D2PAK
(PbFree)
TO220
TO220
(PbFree)
D2PAK
D2PAK
(PbFree)
D2PAK
D2PAK
(PbFree)
TO220
TO220
(PbFree)
D2PAK
D2PAK
(PbFree)
D2PAK
D2PAK
(PbFree)
TO220
TO220
(PbFree)
TO220
TO220
(PbFree)
D2PAK
D2PAK
(PbFree)
TO220
TO220
(PbFree)
TO220
TO220
(PbFree)
D2PAK
D2PAK
(PbFree)
D2PAK
D2PAK
(PbFree)
TO220
TO220
(PbFree)
Operating
Temperature Range
TJ = 0°C to +125°C
TJ = 40°C to +125°C
TJ = 0°C to +125°C
TJ = 0°C to +125°C
TJ = 0°C to +125°C
TJ = 0°C to +125°C
Shipping
50 Units/Rail
50 Units/Rail
800 Tape & Reel
800 Tape & Reel
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
800 Tape & Reel
800 Tape & Reel
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
800 Tape & Reel
800 Tape & Reel
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
50 Units/Rail
800 Tape & Reel
800 Tape & Reel
50 Units/Rail
50 Units/Rail
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