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PDF BA78M10FP Data sheet ( Hoja de datos )

Número de pieza BA78M10FP
Descripción 78 Series Regulators
Fabricantes ROHM Semiconductor 
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78 Series Regulators
1A Output 78 series Regulators
500mA Output 78 series Regulators
BA78□□Series,BA78M□□Series
No.12019ECT01
Description
BA78□□, BA78M□□ series are three-terminal regulators available with several fixed output voltages. It supplies the
stable fixes voltage from unstable direct input voltage. The useful output voltage lineup is 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V,
18V, 20V, 24V with 0.5A / 1A current ability. They have nearly same electric characteristics as competitor products and cover
a wide range of application.
Features
1) Built-in over-current protection circuit and thermal shutdown circuit
2) High ripple rejection
3) Available TO220CP-3, TO252-3 package to a wide range application
4) Compatible replacement to competitor products
5) Various voltage lineup (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V)
Applications
Fixed voltage power supply for TV, Audio components, etc
Line up
1A BA78□□Series
Part Number
5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package
BA78□□CP
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO220CP-3
BA78□□FP
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO252-3
0.5A BA78M□□Series
Part Number
5V 6V 7V 8V 9V 10V 12V 15V 18V 20V 24V Package
BA78M□□CP ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO220CP-3
BA78M□□FP
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TO252-3
Output Voltage and Marking
Part NumberBA78□□□□ (1A)
ab
Symbol
assignment of output voltage
□□ Output voltage(V) □□ Output voltage(V)
05 5.0V typ. 12 12V typ.
06 6.0V typ. 15 15V typ.
a 07 7.0V typ. 18 18V typ.
08 8.0V typ. 20 20V typ.
09 9.0V typ. 24 24V typ.
10 10.0V typ.
Package
CPTO220CP-3
b FPTO252-3
Part NumberBA78M□□□□ (0.5A)
ab
Symbol
assignment of output voltage
□□ Output voltage(V) □□ Output voltage(V)
05 5.0V typ. 12
12V typ.
06 6.0V typ. 15
15V typ.
a 07
7.0V typ.
18
18V typ.
08 8.0V typ. 20
20V typ.
09 9.0V typ. 24
24V typ.
10 10.0V typ.
Package
CPTO220CP-3
b FPTO252-3
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
1/12
2012.03 - Rev.C

1 page




BA78M10FP pdf
BA78□□Series,BA78M□□Series
Technical Note
Electrical Characteristics BA78□□CP/FP
(Ta=25,Vin=10V(05),11V(06),13V(07),14V(08),15V(09),16V(10),19V(12),23V(15),27V(18),29V(20),33V(24),Io=500mA unless otherwise specified)
Parameter
Symbol
Type
Limit
Min Typ Max
Unit
Condition
05 4.8 5.0 5.2
06 5.75 6.0 6.25
07 6.7 7.0 7.3
08 7.7 8.0 8.3
09 8.6 9.0 9.4
Output Voltage 1
Vo1
10
9.6 10.0 10.4
V Io=500mA
12 11.5 12.0 12.5
15 14.4 15.0 15.6
18 17.3 18.0 18.7
20 19.2 20.0 20.8
24 23.0 24.0 25.0
05 4.75 - 5.25
Vin=7.520V, Io=5mA1A
06 5.7 - 6.3
Vin=8.521V, Io=5mA1A
07 6.65 - 7.35
Vin=9.522V, Io=5mA1A
08 7.6 - 8.4
Vin=10.523V, Io=5mA1A
09 8.55 - 9.45
Vin=11.526V, Io=5mA1A
Output Voltage 2
Vo2
10 9.5 - 10.5 V Vin=12.525V, Io=5mA1A
12 11.4 - 12.6
Vin=1527V, Io=5mA1A
15 14.25 - 15.75
Vin=17.530V, Io=5mA1A
18 17.1 - 18.9
Vin=2133V, Io=5mA1A
20 19.0 - 21.0
Vin=2333V, Io=5mA1A
24 22.8 - 25.2
Vin=2733V, Io=5mA1A
05 - 3 100 Vin=725V, Io=500mA
06 - 4 120 Vin=825V, Io=500mA
07 - 5 140 Vin=925V, Io=500mA
08 - 5 160 Vin=10.525V, Io=500mA
09 - 6 180 Vin=11.526V, Io=500mA
Line Regulation 1
Reg.I1
10
- 7 200 mV Vin=12.527V, Io=500mA
12 - 8 240 Vin=14.530V, Io=500mA
15 - 9 300 Vin=17.530V, Io=500mA
18 - 10 360 Vin=2133V, Io=500mA
20 - 12 400 Vin=2333V, Io=500mA
24 - 15 480 Vin=2733V, Io=500mA
05 - 1 50
Vin=812V, Io=500mA
06 - 2 60
Vin=913V, Io=500mA
07 - 2 70
Vin=1015V, Io=500mA
08 - 3 80
Vin=1117V, Io=500mA
09 - 4 90
Vin=1319V, Io=500mA
Line Regulation 2
Reg.I2
10
- 4 100 mV Vin=1420V, Io=500mA
12 - 5 120 Vin=1622V, Io=500mA
15 - 5 150 Vin=2026V, Io=500mA
18 - 5 180 Vin=2430V, Io=500mA
20 - 7 200 Vin=2632V, Io=500mA
24 - 10 240 Vin=3033V, Io=500mA
05
62 78
-
06
59 73
-
07
57 69
-
08
56 65
-
Ripple Rejection
R.R.
09
10
12
56 64
55 64
55 63
-
-
-
dB
ein=1Vrms, f=120Hz,
Io=100mA
15
54 62
-
18
53 61
-
20
53 60
-
24
50 58
-
Temperature
Coefficient of
Output Voltage
05 - -1.0 -
Tcvo
06/07/08/09/10/12
15/18
-
-
-0.5
-0.6
-
-
mV/Io=5mA, Tj=0125
20/24
- -0.7 -
Peak Output Current
Io-p
common
- 1.7 -
A Tj=25
Dropout Voltage
Vd
common
- 2.0 -
V Io=1A
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
5/12
2012.03 - Rev.C

5 Page





BA78M10FP arduino
BA78□□Series,BA78M□□Series
Technical Note
Notes for use
(1) Absolute Maximum Ratings
While utmost care is taken to quality control of this product, any application that may exceed some of the absolute
maximum ratings including the voltage applied and the operating temperature range may result in breakage. If broken,
short-mode or open-mode may not be identified. So if it is expected to encounter with special mode that may exceed the
absolute maximum ratings, it is requested to take necessary safety measures physically including insertion of fuses.
(2) Ground voltage
Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state.
Furthermore, check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient.
(3) Thermal design
When you do the kind of use which exceeds Pd, It may be happened to deteriorating IC original quality such as decrease
of electric current ability with chip temperature rise. Do not exceed the power dissipation (Pd) of the package specification
rating under actual operation, and please design enough temperature margins.
(4) Short-circuiting between terminals, and mismounting
When mounting to pc board, care must be taken to avoid mistake in its orientation and alignment. Failure to do so may
result in IC breakdown. Short-circuiting due to foreign matters entered between output terminals, or between output and
power supply or GND may also cause breakdown.
(5) Operation in Strong electromagnetic field
Be noted that using the IC in the strong electromagnetic radiation can cause operation failures.
(6) Inspection with the IC set to a pc board
If a capacitor must be connected to the pin of lower impedance during inspection with the IC set to a pc board, the
capacitor must be discharged after each process to avoid stress to the IC. For electrostatic protection, provide proper
grounding to assembling processes with special care taken in handling and storage. When connecting to jigs in the
inspection process, be sure to turn OFF the power supply before it is connected and removed.
(7) Input to IC terminals
This is a monolithic IC with P+ isolation between P-substrate and each element as illustrated below. This P-layer and the
N-layer of each element form a P-N junction, and various parasitic element are formed.
If a resistor is joined to a transistor terminal as shown in Fig 28.
P-N junction works as a parasitic diode if the following relationship is satisfied;
GND>Terminal A (at resistor side), or GND>Terminal B (at transistor side); and
if GND>Terminal B (at NPN transistor side),
a parasitic NPN transistor is activated by N-layer of other element adjacent to the above-mentioned parasitic diode.
The structure of the IC inevitably forms parasitic elements, the activation of which may cause interference among circuits,
and/or malfunctions contributing to breakdown. It is therefore requested to take care not to use the device in such
manner that the voltage lower than GND (at P-substrate) may be applied to the input terminal, which may result in
activation of parasitic elements.
(8) Ground wiring pattern
If small-signal GND and large-current GND are provided, It will be recommended to separate the large-current GND
pattern from the small-signal GND pattern and establish a single ground at the reference point of the set PCB so that
resistance to the wiring pattern and voltage fluctuations due to a large current will cause no fluctuations in voltages of the
small-signal GND. Pay attention not to cause fluctuations in the GND wiring pattern of external parts as well.
(9) Thermal shutdown circuit
A temperature control circuit is built in the IC to prevent the damage due to overheat.Therefore, the output is turned off
when the thermal circuit works and is turned on when the temperature goes down to the specified level.
But, built-in the IC a temperature control circuit to protect itself, and avoid the design used the thermal protection.
(10) Over current protection circuit
The over-current protection circuits are built in at output, according to their respective current outputs and prevent the IC
from being damaged when the load is short-circuited or over-current. But, these protection circuits are effective for
preventing destruction by unexpected accident. When it’s in continuous protection circuit moving period don’t use please.
And for ability, because this chip has minus characteristic, be careful for heat plan.
(11) There is a possibility to damage an internal circuit or the element when Vin and the voltage of each terminal reverse in the
application. For instance, Vin is short-circuited to GND etc. with the charge charged to an external capacitor. Please use
the capacitor of the output terminal with 1000μF or less. Moreover, the Vin series is recommended to insert the diode of
the by-pass the diode of the backflow prevention or between each terminal and Vin.
Pin B
Bypass diode
Backflow prevention diode
VCC
Output terminal
Pin A
Resistor
N
N P+
Parasitic element
P P+ N
P substrate
GND
Pin B
Transistor (NPN)
CB
E
N P+
N
P
P+ N
P substrate
Parasitic element
GND
GND
BC
E
Parasitic
element
GND
Other adjacent elements
Pin A
Parasitic
element
Fig.27 Bypass Diode
Fig.28 Simplified structure of monorisic IC
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
11/12
2012.03 - Rev.C

11 Page







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