BA178!!T / FP series
Regulator ICs
Standard 78 series, 3-pin regulator
BA178!!
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
!!T / FP series
!! !!
51 2
61 5
71 8
82 0
92 4
10 −−
BA17805T / FP
BA17806T / FP
BA17807T / FP
BA17808T / FP
BA17809T / FP
BA17810T / FP
BA17812T / FP
BA17815T / FP
BA17818T / FP
BA17820T / FP
BA17824T / FP
Regulator ICs
""""Internal circuit configuration diagram
R
4
R
10
Q
12
R
5
R
6
D
1
R
7
Q
Q
18
Q
14
R
22
BA178!!T / FP series
(1)
R
8
13
Q
5
R
R
1
Q
7
Q
Q
1
R
18
R
9
R
Q
8
Q
10
Q
6
R
15
R
2
2
16
C
1
Q
4
R
14
R
3
D
3
13
D
Q
2
9
Q
16
Q
15
Q
11
Q
3
R
R
12
21
R
17
R
20
R
19
INPUT
Q
17
R
11
(3)
OUTPUT
(2)
COMMON
""""Absolute maximum ratings (Ta=25°C)
^ Common specifications for BA178 !!T / FP series p
Parameter Symbol Limits Unit
Applied voltage V
Power
dissipation
TO220FP
TO252-3
IN
Pd
Operating temperature Topr ˚C
Storage temperature Tstg ˚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).
35 V
∗
2.0
∗
1.0
−40 ∼+85
−55 ∼+150
W
""""Recommended operating conditions (Ta=25°C)
BA17806T / FP
Parameter Symbol Min. Typ. Max. Unit
Input voltage 8.5 − 21 V
Output current
BA17808T / FP
Parameter Symbol Min. Typ. Max. Unit
Input voltage
Output current
BA17805T / FP
Parameter Symbol Min. Typ.
V
Input voltage 7.5 − 25 V
Output current − 1A−
IN
I
O
Max. Unit
BA17807T / FP
Parameter Symbol Min. Typ. Max. Unit
V
Input voltage
Output current
IN
9.5 − 22 V
I
O
−− 1A
V
IN
I
O
−− 1A
V
IN
10.5 − 23 V
I
O
−− 1A
Regulator ICs
BA178!!T / FP series
BA17809T / FP
Parameter Symbol Min. Typ. Max. Unit
V
Input voltage
Output current
IN
11.5 − 26 V
I
O
−− 1A
BA17812T / FP
Parameter Symbol Min. Typ. Max. Unit
V
Input voltage
Output current
IN
15 − 27 V
I
O
−− 1A
BA17818T / FP
Parameter Symbol Min. Typ. Max. Unit
Input voltage
Output current
V
I
21 − 33 V
IN
O
−− 1A
BA17824T / FP
Parameter Symbol Min. Typ. Max. Unit
Input voltage
Output current
V
IN
27 − 33 V
O
I
−− 1A
BA17810T / FP
Parameter Symbol Min. Typ. Max. Unit
Input voltage
Output current
12.5 − 25 V
IN
V
I
O
−− 1A
BA17815T / FP
Parameter Symbol Min. Typ. Max. Unit
V
Input voltage
Output current
IN
17.5 − 30 V
I
O
−− 1A
BA17820T / FP
Parameter Symbol Min. Typ. Max. Unit
V
Input voltage
Output current
IN
23 − 33 V
I
O
−− 1A
""""Electrical characteristics
<BA17805T / FP individual specifications> (unless otherwise noted, Ta=25° C, V
Parameter Symbol Min. Typ. Max. Unit Conditions
Output voltage 1 V
Output voltage 2 V
Input stability 1 Reg.I
Input stability 2 Reg.I
Ripple rejection ratio R.R. 62 78 − dB
Load regulation 1 Reg.L
Load regulation 2 Reg.L
Temperature coefficient of output voltage T
Output noise voltage V
Minimum I/O voltage differential V
Bias current I
Bias current change 1 I
Bias current change 2 I
Peak output current I
Output short-circuit current I
O1
4.8 5.0 5.2 V IO=500mA
O2
4.75 − 5.25 V
1
− 3 100 mV
2
− 150m V
1
− 15 100 mV I O=5mA ∼ 1A
2
− 550m VI O=250 ∼ 750mA
CVO
−− 1.0 − mV/ ˚C
n
− 40 −µ V f=10Hz ∼ 100kHz
d
− 2.0 − VIO=1A
b
− 4.5 8.0 mA I O=0mA
b1
−− 0.5 mA
b2
−− 0.8 mA
O-P
− 1.7 − ATj=25 ˚C
OS
− 0.6 − AVIN=25V
IN
V
VIN=7∼ 25V, IO=500mA
VIN=8∼ 12V, IO=500mA
e
IN
O
=5mA, Tj=0∼ 125˚C
I
O
=5mA∼ 1A
I
V
IN
=10V, IO=500mA)
IN
=7.5∼ 20V, IO=5mA∼ 1A
=1Vrms, f=120Hz, IO=100mA
=8∼ 25V
Measurement
circuit
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
BA178!!T / FP series
Regulator ICs
<BA17806T / FP individual specifications> (unless otherwise noted, Ta=25° C, VIN=11V, IO=500mA)
Parameter Symbol Min. Typ. Max. Unit Conditions
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
V
O1
5.75 6.0 6.25 V I
V
O2
5.7 − 6.3 V
Reg.I
1
− 4 120 mV
Reg.I
2
− 260m V
R.R. 59 73 − dB
Reg.L
1
− 16 120 mV I
Reg.L
2
− 660m VI
CVO
T
V
V
I
I
I
I
O-P
OS
I
−− 0.5 − mV/ ˚C
n
− 60 −µ Vf=10Hz ∼ 100kHz
d
− 2.0 − VI
b
− 4.5 8.0 mA I
b1
−− 0.5 mA
b2
−−0.8 mA
− 1.7 − AT
− 0.6 − AV
O
=
500mA
IN
=
8.5∼ 21V, I
V
V
IN
=
8∼ 25V, I
V
IN
=
9∼ 13V, I
e
IN
=
1Vrms, f=120Hz, I
O
=
5mA∼ 1A
O
=
250∼ 750mA
O
=
5mA, T
j
=
1A
=
0mA
=
5mA∼ 1A
=
8.5∼ 25V
=
25˚C
=
25V
=
I
O
O
O
I
V
IN
j
IN
O
=
5mA∼ 1A
O
=
500mA
O
=
500mA
0∼ 125˚ C
O
=
100mA
Measurement
circuit
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
<BA17807T / FP individual specifications> (unless otherwise noted, Ta=25° C, VIN=13V, IO=500mA)
Parameter Symbol Min. Typ. Max.
Output voltage 1
Output voltage 2
Input stability 1
Input stability 2
Ripple rejection ratio
Load regulation 1
Load regulation 2
Temperature coefficient of output voltage
Output noise voltage
Minimum I/O voltage differential
Bias current
Bias current change 1
Bias current change 2
Peak output current
Output short-circuit current
V
O1
6.7 7.0 7.3
O2
V
Reg.I
Reg.I
6.65 − 7.35
1
− 5 140
2
− 270
R.R. 57 69 −
Reg.L
1
− 17 140
Reg.L
2
− 670 mVI
CVO
T
V
V
I
b
I
b1
I
b2
I
O-P
I
OS
n
d
−−0.5 −
− 70 −
− 2.0 −
− 4.5 8.5
−−0.5
−−0.8
− 1.7 −
− 0.6 −
Unit
V
V
mV
mV
dB
mV
mV/˚ C
µ V
V
mA
mA
mA
A
A
I
O
=
IN
V
V
IN
V
IN
e
IN
I
O
=
O
=
O
=
I
f=10Hz∼ 100kHz
I
O
=
I
O
=
O
=
I
V
IN
T
j
=
V
IN
Conditions
500mA
=
9.5∼ 22V, I
=
9∼ 25V, I
=
10∼ 15V, I
=
1Vrms, f=120Hz, I
O
O
=
O
=
5mA∼ 1A
500mA
=
500mA
5mA∼ 1A
250∼ 750mA
5mA, T
j
=
0∼ 125˚ C
1A
0mA
5mA∼ 1A
=
9.5∼ 25V
25˚C
=
25V
O
=
100mA
Measurement
circuit
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