BA17806T/FP [ROHM]
Standard 78 series, 3-pin regulator; 标准的78系列， 3针调节器
| 型号： | BA17806T/FP |
| 厂家： | 
ROHM |
| 描述： | Standard 78 series, 3-pin regulator |
| 文件： | 总11页 (文件大小：124K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
BA178!!T / FP series
Regulator ICs
Standard 78 series, 3-pin regulator
BA178!!T / FP series
The BA178!!T and BA178!!FP series are 3pin 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 1A 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 TO220FP 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, 24V).
"Product codes
Output voltage (V) Product name Output voltage (V) Product name
5
6
BA17805T / FP
BA17806T / FP
BA17807T / FP
BA17808T / FP
BA17809T / FP
BA17810T / FP
12
15
18
20
24
−
BA17812T / FP
BA17815T / FP
BA17818T / FP
BA17820T / FP
BA17824T / FP
−
7
8
9
10
BA178!!T / 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
(3)
Q
10
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
R18
R3
D3
(2)
COMMON
"Absolute maximum ratings (Ta=25°C)
^Common specifications for BA178!!T / FP seriesp
Parameter
Applied voltage
Symbol
Limits
35
Unit
VIN
V
TO220FP
TO252-3
2.0 ∗
1.0 ∗
Power
dissipation
Pd
W
Operating temperature
Storage temperature
Topr
Tstg
−40∼+85
−55∼+150
˚C
˚C
Reduced by 16 mW / ˚C (TO220FP) and 8 mW / ˚C (TO252-3) for each increase in Ta of 1˚C over 25˚C
∗
(without heat sink).
"Recommended operating conditions (Ta=25°C)
BA17805T / FP
BA17806T / FP
Parameter
Parameter
Input voltage
Output current
Symbol Min.
Typ.
−
Max.
25
Unit
V
Symbol Min.
Typ.
−
Max.
21
Unit
V
V
IN
7.5
Input voltage
Output current
V
IN
8.5
I
O
−
−
1
A
I
O
−
−
1
A
BA17807T / FP
Parameter
BA17808T / FP
Parameter
Symbol Min.
Typ.
−
Max.
22
Unit
V
Symbol Min.
Typ.
−
Max.
23
Unit
V
Input voltage
Output current
VIN
9.5
Input voltage
Output current
VIN
10.5
I
O
−
−
1
A
I
O
−
−
1
A
BA178!!T / FP series
Regulator ICs
BA17809T / FP
BA17810T / FP
Parameter
Parameter
Input voltage
Output current
Symbol
Min.
11.5
−
Typ.
−
Max.
26
Unit
V
Symbol
Min.
12.5
−
Typ.
−
Max.
25
Unit
V
VIN
Input voltage
Output current
VIN
I
O
−
1
A
I
O
−
1
A
BA17812T / FP
Parameter
BA17815T / FP
Parameter
Symbol Min.
Typ.
−
Max.
27
Unit
V
Symbol Min.
Typ.
−
Max.
30
Unit
V
Input voltage
Output current
VIN
15
Input voltage
Output current
V
IN
17.5
I
O
−
−
1
A
I
O
−
−
1
A
BA17818T / FP
Parameter
BA17820T / FP
Parameter
Symbol
Min.
21
−
Typ.
−
Max.
33
Unit
V
Symbol
Min.
23
−
Typ.
−
Max.
33
Unit
V
Input voltage
Output current
VIN
Input voltage
Output current
VIN
I
O
−
1
A
I
O
−
1
A
BA17824T / FP
Parameter
Symbol Min.
Typ.
−
Max.
33
Unit
V
Input voltage
Output current
V
IN
27
I
O
−
−
1
A
"Electrical characteristics
<BA17805T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=10V, IO=500mA)
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
=500mA
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=7.5∼20V, I =5mA∼1A
O
Input stability 1
Reg.I
Reg.I
R.R.
1
3
mV
mV
dB
IN=7∼25V, I
O
=500mA
=500mA
Input stability 2
2
−
1
IN=8∼12V, I
O
Ripple rejection ratio
Load regulation 1
62
−
78
15
5
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
100
50
−
mV
mV
mV/˚C
µV
V
I
I
I
O
=5mA∼1A
Load regulation 2
Reg.L
−
O
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
−1.0
40
2.0
4.5
−
O
=5mA, T =0∼125˚C
j
Vn
−
−
f=10Hz∼100kHz
Vd
−
−
IO
IO
IO
=1A
Ib
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
=5mA∼1A
IN=8∼25V
Ib2
−
−
V
I
O-P
OS
−
1.7
0.6
Tj=25˚C
VIN=25V
I
−
−
A
BA178!!T / FP series
Regulator ICs
<BA17806T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=11V, IO=500mA)
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
120
60
−
V
V
I
O
=
500mA
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
IN
IN
=
8.5∼21V, I =5mA∼1A
O
Input stability 1
Reg.I
Reg.I
R.R.
1
4
mV
mV
dB
=
8∼25V, I
O
=
500mA
500mA
Input stability 2
2
−
2
=
9∼13V, I
O
=
Ripple rejection ratio
Load regulation 1
59
−
73
16
6
e
IN
=
1Vrms, f
5mA∼1A
250∼750mA
5mA, T 0∼125˚C
=120Hz, I =100mA
O
Reg.L
1
2
120
60
−
mV
mV
mV/˚C
µV
V
I
I
I
f
I
I
I
O
=
Load regulation 2
Reg.L
−
O
=
=
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
−0.5
60
2.0
4.5
−
O
j
=
Vn
−
−
=10Hz∼100kHz
Vd
−
−
O
O
O
=
1A
Ib
−
8.0
0.5
0.8
−
mA
mA
mA
A
=
0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
b1
b2
−
=
5mA∼1A
8.5∼25V
25˚C
25V
I
−
−
V
IN
=
I
O-P
OS
−
1.7
0.6
T
j=
I
−
−
A
V
IN
=
<BA17807T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=13V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol
Min.
Typ. Max.
Conditions
Unit
V
O1
O2
6.7
6.65
−
7.0
−
7.3
7.35
140
70
−
I
O
=
500mA
9.5∼22V, I
9∼25V, I
10∼15V, I
120Hz, I
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
V
Output voltage 2
V
V
V
V
IN
IN
IN
=
O=
5mA∼1A
500mA
=500mA
Input stability 1
Reg.I
Reg.I
R.R.
1
2
5
=
=
O
=
mV
mV
dB
Input stability 2
−
2
O
Ripple rejection ratio
Load regulation 1
57
−
69
17
6
e
IN
=
1Vrms, f
5mA∼1A
250∼750mA
5mA, T 0∼125˚C
=
O=100mA
Reg.L
1
2
140
70
−
I
I
I
f
I
I
I
O
=
mV
mV
mV/˚C
µV
V
Load regulation 2
Reg.L
−
O
=
=
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
−0.5
70
2.0
4.5
−
O
j
=
V
n
−
−
=10Hz∼100kHz
V
d
−
−
O
O
O
=
1A
I
b
−
8.5
0.5
0.8
−
=
0mA
mA
mA
mA
A
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
−
=
5mA∼1A
9.5∼25V
25˚C
25V
b2
−
−
V
IN
=
I
O-P
−
1.7
0.6
T
j=
I
OS
−
−
V
IN
=
A
BA178!!T / FP series
Regulator ICs
<BA17808T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=14V, IO=500mA)
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
160
80
−
V
I
O
=
500mA
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
V
IN
IN
IN
=
10.5∼23V, IO=5mA∼1A
Input stability 1
Reg.I
Reg.I
R.R.
1
2
5
mV
mV
dB
mV
mV
=
=
10.5∼25V, IO=500mA
Input stability 2
−
3
11∼17V, IO=500mA
Ripple rejection ratio
Load regulation 1
56
−
65
19
7
e
IN
=
1Vrms, f
5mA∼1A
250∼750mA
5mA, T 0∼125˚C
=
120Hz, I =100mA
O
Reg.L
Reg.L
1
160
80
−
IO
=
Load regulation 2
2
−
IO
=
=
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
−0.5
80
2.0
4.5
−
mV/˚C I
O
j
=
V
n
−
−
µV
V
f
I
I
I
=10Hz∼100kHz
Vd
−
−
O
O
O
=
1A
I
b
−
8.0
0.5
0.8
−
mA
mA
mA
A
=
0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
=
5mA∼1A
10.5∼25V
25˚C
25V
−
−
V
IN
=
I
O-P
OS
−
1.7
0.6
T
j=
I
−
−
A
V
IN
=
<BA17809T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=15V, IO=500mA)
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
180
90
−
V
V
I
O
=500mA
IN=11.5∼26V, I
IN=11.5∼26V, I
IN=13∼19V, I
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
=5mA∼1A
Input stability 1
Reg.I
Reg.I
R.R.
1
2
6
mV
mV
dB
O=500mA
Input stability 2
−
4
O
=500mA
Ripple rejection ratio
Load regulation 1
56
−
64
20
8
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
180
90
−
mV
mV
mV/˚C
µV
V
IO
=5mA∼1A
Load regulation 2
Reg.L
−
IO
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage diffrential
Bias current
T
CVO
−
−0.5
90
2.0
4.5
−
IO
=5mA, Tj =0∼125˚C
Vn
−
−
f=10Hz∼100kHz
Vd
−
−
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
−
=5mA∼1A
IN=11.5∼26V
b2
−
−
V
I
O-P
−
1.7
0.3
Tj=25˚C
VIN=30V
I
OS
−
−
A
BA178!!T / FP series
Regulator ICs
<BA17810T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=16V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
9.6
9.5
−
10.0
−
10.4
10.5
200
100
−
V
V
I
O
=500mA
IN=12.5∼25V, I
IN=12.5∼27V, I
IN=14∼20V, I =500mA
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=5mA∼1A
Input stability 1
Reg.I
Reg.I
R.R.
1
2
7
mV
mV
dB
O=500mA
Input stability 2
−
4
O
Ripple rejection ratio
Load regulation 1
55
−
64
21
8
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
200
90
−
mV
mV
mV/˚C
µV
V
I
I
I
O
=5mA∼1A
Load regulation 2
Reg.L
−
O
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
−0.5
100
2.0
4.5
−
O
=5mA, Tj =0∼125˚C
V
n
−
−
f=10Hz∼100kHz
V
d
−
−
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
=5mA∼1A
IN=12.5∼27V
−
−
V
I
O-P
OS
−
1.7
0.3
Tj=25˚C
VIN=30V
I
−
−
A
<BA17812T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=19V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min. Typ. Max. Unit
Conditions
V
O1
O2
11.5 12.0 12.5
V
I
O
=500mA
IN=15∼27V, I
IN=14.5∼30V, I
IN=16∼22V, I =500mA
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
11.4
−
−
8
12.6
240
120
−
V
V
V
V
O=5mA∼1A
Input stability 1
Reg.I
Reg.I
R.R.
1
2
mV
mV
dB
mV
mV
O=500mA
Input stability 2
−
5
O
Ripple rejection ratio
Load regulation 1
55
−
63
23
10
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
Reg.L
1
240
120
−
IO
=5mA∼1A
Load regulation 2
2
−
IO
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
−
0.5
110
2.0
4.5
−
mV/˚C I
O
=5mA, Tj =0∼125˚C
V
n
d
−
−
µV f=10Hz∼100kHz
V
−
−
V
mA
mA
mA
A
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
−
=5mA∼1A
IN=14.5∼30V
b2
−
−
V
I
O-P
−
1.7
0.3
Tj=25˚C
VIN=30V
I
OS
−
−
A
BA178!!T / FP series
Regulator ICs
<BA17815T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=23V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
14.4
15.0
−
15.6
15.75
300
150
−
V
V
I
O
=500mA
IN=17.5∼30V, I
IN=17.5∼30V, I
IN=20∼26V, I
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
14.25
V
V
V
O
=5mA∼1A
Input stability 1
Reg.I
Reg.I
R.R.
1
2
−
−
9
mV
mV
dB
O=500mA
Input stability 2
5
O
=500mA
Ripple rejection ratio
Load regulation 1
54
−
62
27
10
−0.6
125
2.0
4.5
−
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
300
150
−
mV
mV
mV/˚C
µV
V
I
I
I
O
=5mA∼1A
Load regulation 2
Reg.L
−
O
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
O
=5mA, Tj=0∼125˚C
V
n
d
−
−
f=10Hz∼100kHz
V
−
−
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
b2
−
=5mA∼1A
IN=17.5∼30V
−
−
V
I
O-P
OS
−
1.7
0.3
Tj=25˚C
VIN=30V
I
−
−
A
<BA17818T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=27V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max. Unit
Conditions
V
O1
O2
17.3 18.0
18.7
18.9
360
180
−
V
V
I
O
=500mA
IN=21∼33V, I
IN=21∼33V, I
IN=24∼33V, I
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
−
−
10
5
V
V
V
O
=5mA∼1A
=500mA
=500mA
Input stability 1
Reg.I
Reg.I
R.R.
1
2
mV
mV
dB
O
Input stability 2
−
O
Ripple rejection ratio
Load regulation 1
55
−
61
30
12
−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
V
I
I
I
O
=5mA∼1A
Load regulation 2
Reg.L
−
O
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
O
=5mA, Tj=0∼125˚C
V
n
d
−
−
f=10Hz∼100kHz
V
−
−
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
−
=5mA∼1A
IN=21∼33V
b2
−
−
V
I
O-P
−
1.7
0.3
Tj=25˚C
VIN=30V
I
OS
−
−
A
BA178!!T / FP series
Regulator ICs
<BA17820T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=29V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
19.2
19.0
−
20.0
−
20.8
21.0
400
200
−
V
V
I
O
=500mA
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=23∼33V, I
O
O
=5mA∼1A
=500mA
=500mA
Input stability 1
Reg.I
Reg.I
R.R.
1
12
7
mV
mV
dB
IN=23∼33V, I
Input stability 2
2
−
IN=26∼32V, I
O
Ripple rejection ratio
Load regulation 1
53
−
60
32
14
−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
µV
V
I
I
I
O
=5mA∼1A
Load regulation 2
Reg.L
−
O
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
TCVO
−
O
=5mA, Tj =0∼125˚C
Vn
−
−
f=10Hz∼100kHz
Vd
−
−
IO
IO
IO
=1A
Ib
−
8.0
0.5
0.8
−
mA
mA
mA
A
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
Ib1
−
=5mA∼1A
IN=23∼33V
Ib2
−
−
V
IO-P
−
1.7
0.3
T=25˚C
j
IOS
−
−
A
VIN=30V
<BA17824T / FP individual specifications> (unless otherwise noted, Ta=25°C, VIN=33V, IO=500mA)
Measurement
circuit
Parameter
Output voltage 1
Symbol Min.
Typ. Max.
Unit
Conditions
V
O1
O2
23.0
22.8
−
24.0
−
25.0
25.2
480
240
−
V
I
O
=500mA
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
V
IN=27∼33V, I
IN=27∼33V, I
IN=30∼33V, I
O
O
O
=5mA∼1A
=500mA
=500mA
Input stability 1
Reg.I
Reg.I
R.R.
1
2
15
10
58
37
15
−0.7
180
2.0
4.7
−
mV
mV
dB
mV
mV
Input stability 2
−
Ripple rejection ratio
Load regulation 1
50
−
e
IN=1Vrms, f=120Hz, I =100mA
O
Reg.L
1
2
480
240
−
IO
=5mA∼1A
Load regulation 2
Reg.L
−
IO
=250∼750mA
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
T
CVO
−
mV/˚C I
O
=5mA, T =0∼125˚C
j
V
n
−
−
µV f=10Hz∼100kHz
V
d
−
−
V
mA
mA
mA
A
IO
IO
IO
=1A
I
b
−
8.0
0.5
0.8
−
=0mA
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
I
I
b1
−
=5mA∼1A
IN=27∼33V
b2
−
−
V
I
O-P
−
1.7
0.3
Tj =25˚C
VIN=30V
I
OS
−
−
A
BA178!!T / FP series
Regulator ICs
"Measurement circuits
eIN
V
~
10Ω5W
INPUT OUTPUT
INPUT OUTPUT
COMMON
0.1µF
eOUT
0.1µF
100µF
0.33µF
V
IO
V
IN
V
COMMON
~
V
IN
I
O
e
IN=1Vrms
f=120Hz
e
eOINUT
Ripple rejection ratio R.R. = 20 log
(
)
Fig. 1 Measurement circuit for output voltage,
input stability,load regulation,
temperature coefficient of output voltage
Fig. 2 Measurement circuit for ripple rejection rario
V
10µF
+
INPUT OUTPUT
BPF
INPUT OUTPUT
COMMON
0.33µF
0.33µF
0.1µF
0.1 µF
10Hz∼
100kHz
∆V=
100mA
Noise
meter
V
VIN
I
O
I
IA
O
V
IN
COMMON
Fig. 4 Measurement circuit for Minimum
I / O voltage differential
Fig. 3 Measurement circuit for output noise voltage
INPUT OUTPUT
INPUT OUTPUT
0.33 µF
0.1 µF
0.33 µF
0.1 µF
A
IO
VIN
V
IN
IO
COMMON
A
COMMON
Fig. 5 Measurement circuit for bias
current and bias current change
Fig. 6 Measurement circuit for
Fig. 1 output short-circuit current
"Electrical characteristic curves
25
10
6
(1) Infinite heat sink, θj-c = 5.7 (˚C/W)
(2) 100×100×2 (mm3), with Al heat sink
(3) 50×50×2 (mm3), with Al heat sink
(4) No heat sink θj-a = 62.5 (˚C/W)
V
IN=10V, IOUT=0
BA17805T
V
IN=10V
(1) 22.0
BA17805T
5
4
3
2
8
6
4
20
15
10
5
Note: With Al heat sink, tightening
torque = 6 kg/cm and silicon
grease as lubricant
(2) 11.0
(3) 6.5
(4) 2.0
2
0
1
0
1.0
1.2
1.4
1.6
1.8
2.0
25
50
75
100 125 150 175 200
0
25
50
75
100
125
150
OUTPUT CURRENT : IOUT (A)
JUNCTION TEMPERATURE : Tj (˚C)
AMBIENT TEMPERATURE : Ta (˚C)
Fig. 7 Current limit characteristics
Fig. 8 Thermal cutoff circuit
Fig. 2 characteristics
Fig.9 Ta - power dissipation
characteristics (TO220)
BA178!!T / 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 Ta - power dissipation
Fig.3 characteristics (TO252-3)
"Operation notes
(1) Although the circuit examples included in this handbook are highly recommendable for general use, you should be
thoroughly familiar with circuit characteristics as they relate to your own use 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 can not 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 0.1µF 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, it may be be damaged if
absolute maximum ratings for voltage or operating temperature are exceeded. When 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.
BA178!!T / FP series
Regulator ICs
"External dimensions (Units : mm)
BA178OOT series
BA178OOFP 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
2.3 0.2
0.65
±
2.3
(3)
±
0.2
0.5±0.1
(1)
+0.1
−0.05
(1) INPUT
2.54±0.5
2.54±0.5
0.55
2.6±0.5
(2) COMMON
(3) OUTPUT
(1) (2) (3)
(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