BA178M07FP [ROHM]
Standard 78M series, 3-pin regulator; 标准的78M系列， 3针调节器
| 型号： | BA178M07FP |
| 厂家： | 
ROHM |
| 描述： | Standard 78M series, 3-pin regulator |
| 文件： | 总11页 (文件大小：125K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BA178M!!T / BA178M!!FP series
Regulator ICs
Standard 78M series, 3-pin regulator
BA178M!!T / BA178M!!FP series
The BA178M!!T and BA178M!!FP series are 3-pin, fixed positive output voltage regulators. These regulators are
used to provide a stabilized output voltage from a fluctuating DC input voltage.
There are 11 fixed output voltages, as follows : 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, and 24V.
The maximum current capacity is 0.5A for each of the above voltages.
"Application
Constant voltage power supply
"Features
1) Built-in overcurrent protection circuit and thermal shutdown circuit.
2) Excellent ripple regulation.
3) Available in TO-220FP and TO252-3 packages, to meet wide range of applications.
4) Compatible with other manufacturers' regulators.
5) Richly diverse lineup. (5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24 V)
"Product codes
Output voltage (V)
Product No.
Output voltage (V)
Product No.
BA178M12T / FP
BA178M15T / FP
BA178M18T / FP
BA178M20T / FP
BA178M24T / FP
−
5
6
BA178M05T / FP
BA178M06T / FP
BA178M07T / FP
BA178M08T / FP
BA178M09T / FP
BA178M10T / FP
12
15
18
20
24
−
7
8
9
10
BA178M!!T / BA178M!!FP series
Regulator ICs
"Internal circuit configuration diagram
(1)
INPUT
R4
R10
R8
R9
R13
Q
8
Q
9
D2
Q
12
Q
16
Q
17
Q
15
R12
R21
R5
R17
R11
Q
13
Q
10
(3)
OUTPUT
Q
6
R6
Q
5
R15
R16
R20
R2
R1
C1
Q
11
D1
Q
7
Q
18
Q
4
Q
2
Q
1
Q3
Q
14
R19
R14
R7
R22
R10
R3
D3
(2)
COMMON
"Absolute maximum ratings (Ta=25°C)
^Common specifications for BA178M!!T / FP seriesp
Parameter
Symbol
Limits
Unit
V
Applied voltage
VIN
35
∗
2.0
1.0
TO220FP
Power dissipation
Pd
W
∗
TO252−3
Operating temperature
Storage temperature
Topr
Tstg
−40~+85
−55~+150
°C
°C
Reduced by 16 mW (TO220FP) and 8 mW (TO252-3) for each increase in Ta of 1°C over 25°C
(without heat sink).
∗
"Recommended operating conditions (Ta=25°C)
BA178M05T / FP
BA178M06T / FP
Parameter
Input voltage
Output current
Symbol Min.
Typ.
−
Max.
20
Unit
V
Parameter
Input voltage
Output current
Symbol
Min.
8.5
−
Typ.
−
Max.
21
Unit
V
V
IN
V
IN
7.5
I
O
−
0.5
A
I
O
−
−
0.5
A
BA178M08T / FP
BA178M07T / FP
Parameter
Input voltage
Output current
Symbol
Min.
10.5
−
Typ.
−
Max.
23
Unit
V
Parameter
Input voltage
Output current
Symbol
Min.
9.5
−
Typ.
−
Max.
22
Unit
V
V
IN
V
IN
I
O
−
0.5
A
I
O
−
0.5
A
BA178M10T / FP
BA178M09T / FP
Parameter
Input voltage
Output current
Symbol
VIN
Min.
12.5
−
Typ.
−
Max.
25
Unit
V
Parameter
Input voltage
Output current
Symbol
Min.
11.5
−
Typ.
−
Max.
24
Unit
V
V
IN
I
O
−
0.5
A
IO
−
0.5
A
BA178M!!T / BA178M!!FP series
Regulator ICs
BA178M12T / FP
BA178M15T / FP
Parameter
Input voltage
Output current
Symbol
Min.
15
−
Typ.
−
Max.
27
Unit
V
Parameter
Input voltage
Output current
Symbol
Min.
17.5
−
Typ.
−
Max.
30
Unit
V
V
IN
VIN
IO
I
O
−
0.5
A
−
0.5
A
BA178M18T / FP
BA178M20T / FP
Parameter
Input voltage
Output current
Symbol
VIN
Min.
21
−
Typ.
−
Max.
33
Unit
V
Parameter
Input voltage
Output current
Symbol
VIN
Min.
23
−
Typ.
−
Max.
33
Unit
V
IO
−
0.5
A
−
0.5
A
IO
BA178M24T / FP
Parameter
Input voltage
Output current
Symbol
Min.
27
−
Typ.
−
Max.
33
Unit
V
VIN
IO
−
0.5
A
"Electrical characteristics
<BA178M05T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=10V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max. Unit
Conditions
V
O1
O2
4.8
4.75
−
5.0
−
5.2
5.25
100
50
−
V
V
I
O
=
IN
IN
IN
350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
V
V
V
=
=
=
7.5
~
20V, I =5~350mA
O
Input stability 1
Reg.I
Reg.I
R.R.
1
2
3
mV
mV
dB
7
~
~
25V, I
12V, I
O
=
=
200mA
200mA
Input stability 2
−
1
8
O
Ripple rejection ratio
Load regulation 1
62
−
78
20
10
−1.0
40
2.0
4.5
−
e
IN
=
1Vrms, f
=
120Hz, I =100mA
O
Reg.L
1
2
100
50
−
mV
mV
mV/°C
µV
I
I
I
f
I
I
I
O
=
=
=
5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=
5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
5mA, T
100kHz
500mA
0mA
j
=
0~
125°C
V
n
−
−
10Hz
~
V
d
−
−
V
O
O
O
=
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
=
=
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
5~
350mA
25V, I =200mA
−
−
V
T
V
IN
=
8~
O
I
O
−P
−
875
0.4
j=
25°C
25V
I
OS
−
−
IN
=
BA178M!!T / BA178M!!FP series
Regulator ICs
<BA178M06T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=11V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
5.75
5.7
−
6.0
−
6.25
6.3
100
50
−
V
V
I
O
=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
V
V
V
IN=8.5 21V, I =5~350mA
~
O
Input stability 1
Reg.I
Reg.I
R.R.
1
3
mV
mV
dB
IN=8
~
~
25V, I
O
=200mA
=200mA
Input stability 2
2
−
1
IN=9
25V, I
O
Ripple rejection ratio
Load regulation 1
60
−
74
20
10
−0.5
60
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
120
60
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
25V, I
Tj=25°C
IN=25V
j
=0~125°C
Vn
−
−
f=10Hz~
Vd
−
−
V
IO
IO
IO
Ib
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
~
Ib2
−
−
V
IN=9
~
O=200mA
IO−P
−
875
0.4
IOS
−
−
V
<BA178M07T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=13V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max. Unit
Conditions
V
O1
O2
6.7
6.65
−
7.0
−
7.3
7.35
100
50
−
V
V
I
O
=350mA
IN=9.5 22V, I
IN=9 25V, I =200mA
IN=10 25V, I =200mA
IN=1Vrms, f=120Hz, I =100mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
V
V
V
~
O=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
2
4
mV
mV
dB
~
O
Input stability 2
−
1
~
O
Ripple rejection ratio
Load regulation 1
57
−
71
20
10
−0.5
70
2.0
4.5
−
e
O
Reg.L
1
2
140
70
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
25V, I
Tj=25°C
IN=25V
j=0~125°C
V
n
−
−
f=10Hz~
V
d
−
−
V
IO
IO
IO
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
~
−
−
V
IN=10
~
O=200mA
I
O
−
P
−
875
0.4
I
OS
−
−
V
BA178M!!T / BA178M!!FP series
Regulator ICs
<BA178M08T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=14V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
7.7
7.6
−
8.0
−
8.3
8.4
100
50
−
V
V
I
O
=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
V
V
V
IN=10.5
~
~
23V, IO=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
4
mV
mV
dB
IN=10.5
25V, IO=200mA
Input stability 2
2
−
1
IN=11
~
12V, IO=200mA
Ripple rejection ratio
Load regulation 1
56
−
69
20
10
−0.5
80
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I
O=100mA
Reg.L
1
2
160
80
−
mV
mV
mV/°C
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
=5mA, T
j
=0~125°C
Vn
−
−
µV f=10Hz
~
100kHz
Vd
−
−
V
IO
IO
IO
=500mA
Ib
−
6.0
0.5
0.8
−
mA
mA
mA
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
b1
b2
−
=5
~
350mA
25V, I =200mA
I
−
−
V
IN=10.5
~
O
IO−P
−
875
0.4
mA Tj=25°C
IN=25V
IOS
−
−
A
V
<BA178M09T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=15V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max.
Unit
Conditions
V
O1
O2
8.6
8.55
−
9.0
−
9.4
9.45
100
50
−
V
V
I
O
=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
V
V
V
IN=11.5
~
~
24V, IO=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
2
4
mV
mV
dB
IN=11.5
26V, IO=200mA
Input stability 2
−
2
IN=12
~
25V, IO=200mA
Ripple rejection ratio
Load regulation 1
56
−
67
20
10
−0.5
90
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I
O=100mA
Reg.L
1
2
180
90
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
25V, I
Tj=25°C
IN=30V
j=0~125°C
V
n
−
−
f=10Hz~
V
d
−
−
V
IO
IO
IO
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
~
−
−
V
IN=12
~
O=200mA
I
O
−P
−
875
0.17
I
OS
−
−
V
BA178M!!T / BA178M!!FP series
Regulator ICs
<BA178M10T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=16V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max.
Unit
Conditions
=350mA
V
O1
O2
9.6
9.5
−
10.0 10.4
V
V
I
O
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
−
5
10.5
100
50
−
V
V
V
IN=12.5
~
~
25V, I
O
=5
~350mA
Input stability 1
Reg.I
1
mV
mV
dB
IN=12.5
28V, I
O
=200mA
Input stability 2
Reg.I
2
−
2
IN=14~
26V, IO=200mA
Ripple rejection ratio
Load regulation 1
R.R.
56
−
66
20
10
−0.5
100
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I
O=100mA
Reg.L
1
200
100
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
2
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
25V, I
j=0~125°C
V
n
−
−
f=10Hz
~
V
d
−
−
V
I
I
I
O
O
O
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
~
Ib2
−
−
V
IN=13
~
O=200mA
IO−
P
−
875
0.17
Tj=25°C
IN=30V
IOS
−
−
V
<BA178M12T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=19V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max.
Unit
Conditions
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
O1
O2
11.5 12.0 12.5
V
V
I
O
=350mA
27V, I
IN=14.5 30V, I
IN=16 30V, I =200mA
IN=1Vrms, f=120Hz, I =100mA
Output voltage 2
V
11.4
−
−
5
12.6
100
50
−
V
V
V
IN=15
~
O=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
mV
mV
dB
~
O=200mA
Input stability 2
2
−
3
~
O
Ripple rejection ratio
Load regulation 1
55
−
63
20
10
−0.5
110
2.0
4.5
−
e
O
Reg.L
1
2
240
120
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
IN=14.5 30V, I
Tj=25°C
IN=30V
j
=0~125°C
V
n
−
−
f=10Hz~
V
d
−
−
V
IO
IO
IO
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
b1
b2
−
~
I
−
−
V
~
O=200mA
IO−
P
−
875
0.17
IOS
−
−
V
BA178M!!T / BA178M!!FP series
Regulator ICs
<BA178M15T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=23V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Conditions
Symbol Min. Typ. Max. Unit
I
O
=350mA
IN=17.5 30V, I
IN=17.5 30V, I
IN=20 30V, I =200mA
IN=1Vrms, f=120Hz, I =100mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
V
O1
O2
14.4 15.0 15.6
V
V
Output voltage 2
V
V
V
~
O=5~350mA
V
14.25
−
6
15.75
100
50
−
Input stability 1
~
O
=200mA
Reg.I
Reg.I
R.R.
1
2
−
−
mV
mV
dB
Input stability 2
~
O
3
Ripple rejection ratio
Load regulation 1
e
O
54
−
60
20
10
−0.6
130
2.0
4.5
−
I
I
I
O
=5
~
~
500mA
200mA
Reg.L
1
2
300
150
−
mV
mV
mV/°C
µV
Load regulation 2
O
O
=5
Reg.L
−
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
IN=17.5 30V, I
Tj=25°C
IN=30V
j
=0~125°C
T
CVO
−
f=10Hz
~
V
n
−
−
I
I
I
O
O
O
V
d
−
−
V
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
~
I
I
b1
b2
−
V
~
O
=200mA
−
−
I
O
−
P
−
875
0.17
V
I
OS
−
−
<BA178M18T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=27V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max. Unit
Conditions
V
O1
O2
17.3 18.0 18.7
V
V
I
O
=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
17.1
−
−
7
18.9
100
50
−
V
V
V
IN=21
IN=21
IN=24
~
~
~
33V, I
33V, I
33V, I
O
O
O
=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
mV
mV
dB
=200mA
=200mA
Input stability 2
2
−
3
Ripple rejection ratio
Load regulation 1
53
−
58
20
10
−0.6
140
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
360
180
−
mV
mV
mV/°C
µV
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
=5mA, T
100kHz
=500mA
=0mA
=5 350mA
33V, I
j=0~125°C
V
n
−
−
f=10Hz
~
V
d
−
−
V
I
I
I
O
O
O
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
b1
b2
−
~
I
−
−
V
IN=21
~
O
=200mA
I
O
−
P
−
875
0.17
Tj=25°C
IN=30V
I
OS
−
−
V
BA178M!!T / BA178M!!FP series
Regulator ICs
<BA178M20T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=29V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max. Unit
Conditions
V
O1
O2
19.2 20.0 20.8
V
V
I
O
=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
V
19.0
−
−
8
21.0
100
50
−
V
V
V
IN=23
IN=23
IN=24
~
~
~
33V, I
33V, I
33V, I
O
O
O
=5~350mA
Input stability 1
Reg.I
Reg.I
R.R.
1
mV
mV
dB
=200mA
=200mA
Input stability 2
2
−
4
Ripple rejection ratio
Load regulation 1
53
−
58
20
10
−0.7
150
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
400
200
−
mV
mV
mV/°C
I
I
I
O
=5
~
~
500mA
200mA
Load regulation 2
Reg.L
−
O
O
=5
Temperature coefficient of output voltage
Output noise voltage
Mninimum I/O voltage differential
Bias current
TCVO
−
=5mA, T
j
=0~125°C
V
n
−
−
µV f=10Hz
~
100kHz
V
d
−
−
V
IO
IO
IO
=500mA
I
b
−
6.0
0.5
0.8
−
mA
mA
mA
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
=5
~
350mA
33V, I =200mA
Ib2
−
−
V
IN=23
~
O
IO−
P
−
875
0.17
mA Tj=25°C
IN=30V
IOS
−
−
A
V
<BA178M24T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=33V, IO=350mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max. Unit
Conditions
VO1
VO2
23.0 24.0 25.0
V
IO=350mA
Fig.1
Fig.1
Fig.1
Fig.1
Fig.2
Fig.1
Fig.1
Fig.1
Fig.3
Fig.4
Fig.5
Fig.5
Fig.5
Fig.1
Fig.6
Output voltage 2
22.8
−
−
10
25.2
100
50
−
V
VIN=27
VIN=27
VIN=28
~
~
~
33V, IO=5
~
350mA
Input stability 1
Reg.I1
Reg.I2
R.R.
Reg.L1
Reg.L2
TCVO
Vn
mV
mV
dB
mV
mV
33V, IO=200mA
33V, IO=200mA
Input stability 2
−
5
Ripple rejection ratio
Load regulation 1
50
−
55
eIN=1Vrms, f=120Hz, IO=100mA
20
480
240
−
IO=5
~
~
500mA
200mA
Load regulation 2
−
10
IO=5
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
−
−0.7
170
2.0
4.8
−
mV/°C IO=5mA, T
j
=0~125°C
−
−
µV
V
f=10Hz~100kHz
Vd
−
−
IO=500mA
IO=0mA
Ib
−
6.0
0.5
0.8
−
mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
IO=5~
350mA
33V, IO=200mA
Tj=25°C
IN=30V
Ib2
−
−
VIN=27
~
IO−P
IOS
−
875
0.17
−
−
V
BA178M!!T / BA178M!!FP series
Regulator ICs
"Measurement circuits
V
IN
V
INPUT OUTPUT
0.1µF
10Ω5W
INPUT OUTPUT
COMMON
V
V
IN
I
O
0.1µF
COMMON
eOUT
100µF
0.33µF
V
IO
eIN=1Vrms
f=120Hz
e
IN
Ripple rejection ratioR.R.=20 log
(
)
e
OUT
Fig. 1 Measurement circuit for output voltage,
input stability, load regulation,
Fig. 2 Measurement circuit for ripple rejection ratio
temperature coefficient of output voltage
10µF
V
+
BPF
INPUT OUTPUT
COMMON
0.33µF
0.1 µF
10Hz
100kHz
~
Noise
meter
INPUT OUTPUT
I
O
V
IN
0.33µF
0.1µF
∆V=
100mV
V
V
IN
I
O
COMMON
500mA
Fig. 3 Measurement circuit for output noise voltage
Fig. 4 Measurement circuit for Minimum
I/O voltage differential
INPUT
OUTPUT
INPUT OUTPUT
0.33µF
0.1µF
0.33 µF
0.1 µF
A
IO
V
IN
V
IN
I
O
COMMON
COMMON
A
Fig. 5 Measurement circuit for bias current
and bias current change
Fig. 6 Measurement circuit for
Fig. 10output short-circuit current
"Electrical characteristic curves
10
25
6
(1) Infinite heat sink, θj−c = 5.7 (°C / W)
V
IN=10V, IOUT=0
V
IN=10V
(2) 100
(3) 50
×
100×
2 (mm3), with Al heat sink
(1) 22.0
BA178M05T
BA178M05T
×
50
×
2 (mm3), with Al heat sink
5
4
3
2
8
6
4
2
20
15
10
5
(4) No heat sink θj−a = 62.5 (°C / W)
(2) 11.0
(3) 6.5
(4) 2.0
1
0
25
50
75
100 125 150 175 200
0
25
50
75
100
125
150
0
0.2
0.4
0.6
0.8
1.0
AMBIENT TEMPERATURE : Ta (°C)
JUNCTION TEMPERATURE : Tj (°C)
OUTPUT CURRENT : IOUT (A)
Fig.9 Thermal derating characteristic
(TO220FP)
Fig. 8 Thermal cutoff circuit
characteristics
Fig. 7 Current limit characteristics
BA178M!!T / BA178M!!FP series
Regulator ICs
12.5
(1) Infinite heat sink, θj−c=12.5 (°C / W)
(2) No heat sink θj−c=125.0 (°C /W)
(1) 10.0
10
7.5
5
2.5
0
(2) 1.0
0
25
50
75
100
125
150
AMBIENT TEMPERATURE : Ta (°C)
Fig.10 Thermal derating characteristic
(TO252−3)
"Operation notes
(1) Although the circuit examples included in this handbook are highly recommendable for general use, you should
thoroughly familiar yourself with the circuit characteristics as they relate to your own conditions. If you intend
to change the number of external circuits, leave an ample margin, taking into account discrepancies in both static
and dynamic characteristics of external parts and Rohm ICs. In addition, please be advised that Rohm cannot
provide complete assurance regarding patent rights.
(2) Operating power supply voltage
When operating within the normal voltage range and within the ambient operating temperature range, most circuit
functions are guaranteed. The rated values cannot be guaranteed for the electrical characteristics, but there are no
sudden changes of the characteristics within these ranges.
(3) Power dissipation
Heat attenuation characteristics are noted on a separate page and can be used as a guide in judging power
dissipation.
If these ICs are used in such in a way that the allowable power dissipation level is exceeded, an increase in the chip
temperature could cause a reduction in the current capability or could otherwise adversely affect the performance of
the IC. Make sure a sufficient margin is allowed so that the allowable power dissipation value is not exceeded.
(4) Preventing oscillation in output and using bypass capacitors
Always use a capacitor between the output pins and the GND to prevent fluctuation in the output and to prevent
oscillation between the output pins and the GND of the application’s input (VIN µF should be used.)
Changes in the temperature and other factors can cause the value of the capacitor to change, and this can cause
oscillation. To prevent this, we recommend using a tantalum capacitor which has minimal changes in nominal
capacitance.
Also, we recommend adding a bypass capacitor of about 0.33µF between the input pin and the GND, as close to the
pin as possible.
(5) Thermal overload circuit
A built-in thermal overload circuit prevents damage from overheating. When the thermal circuit is activated, the various
outputs are in the OFF state. When the temperature drops back to a constant level, the circuit is restored.
(6) Internal circuits could be damaged if there are modes in which the electric potential of the application’s input (VIN) and
GND are the opposite of the electric potential of the various outputs. Use of a diode or other such bypass path is
recommended.
(7) Although the manufacture of this product includes rigorous quality assurance procedures, the product may be
damaged if absolute maximum ratings for voltage or operating temperature are exceeded. If damage has occurred,
special modes (such as short circuit mode or open circuit mode) cannot be specified. If it is possible that such special
modes may be needed, please consider using a fuse or some other mechanical safety measure.
(8) When used within a strong magnetic field, be aware that there is a slight possibility of malfunction.
BA178M!!T / BA178M!!FP series
Regulator ICs
"External dimensions (Units : mm)
BA178MOOT series
BA178MOOFP series
+0.3
−0.1
+0.3
−0.1
4.5
10.0
+0.3
−0.1
+0.2
−0.1
7.0
φ3.1 0.1
2.8
6.5 0.2
2.3 0.2
5.0+0.2
0.5 0.1
−0.1
(2)
1.3
0.8
0.65
0.65
2.3 0.2
2.3 0.2
0.5 0.1
(1)
(3)
+0.1
−0.05
(1) INPUT
2.54 0.5
(1) (2) (3)
2.54 0.5
0.55
2.6 0.5
(2) COMMON
(3) OUTPUT
(1) INPUT
(2) COMMON
(3) OUTPUT
(1) (2) (3)
TO220FP
TO252−3
相关型号：
©2020 ICPDF网 联系我们和版权申明