BA7810FP-E1 [ROHM]
Regulator, 1 Output, BIPolar,;
| 型号： | BA7810FP-E1 |
| 厂家： | 
ROHM |
| 描述： | Regulator, 1 Output, BIPolar, |
| 文件： | 总13页 (文件大小：337K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TECHNICAL NOTE
Universal Standard 78 Series Regulators
3-Terminal
Positive Voltage Regulator
BA78□□,BA78M□□Series
●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
BA78□□CP
BA78□□FP
5V
○
○
6V
○
○
7V
○
○
8V
○
○
9V
○
○
10V 12V 15V 18V 20V 24V Package
○
○
○
○
○
○
TO220CP-3
TO252-3
○
○
○
○
○
○
■0.5A BA78M□□Series
Part Number
BA78M□□CP
BA78M□□FP
5V
○
○
6V
○
○
7V
○
○
8V
○
○
9V
○
○
10V 12V 15V 18V 20V 24V Package
○
○
○
○
○
○
TO220CP-3
TO252-3
○
○
○
○
○
○
Dec.2006
●Output Voltage and Marking
Part Number：BA78□□□□ (1A)
Part Number：BA78M□□□□ (0.5A)
a
b
a
b
Symbol
a
assignment of output voltage
Symbol
assignment of output voltage
□□ Output voltage (V) □□ Output voltage (V)
□□ Output voltage (V) □□ Output voltage (V)
05
06
07
08
09
10
5.0V typ.
6.0V typ.
7.0V typ.
8.0V typ.
9.0V typ.
10.0V typ.
12
15
18
20
24
12V typ.
15V typ.
18V typ.
20V typ.
24V typ.
05
06
07
08
09
10
5.0V typ.
6.0V typ.
7.0V typ.
8.0V typ.
9.0V typ.
10.0V typ.
12
15
18
20
24
12V typ.
15V typ.
18V typ.
20V typ.
24V typ.
a
Package
Package
CP：TO220CP-3
FP：TO252-3
CP：TO220CP-3
FP：TO252-3
b
b
●Absolute Maximum Rating (Ta=25℃)
BA78□□CP/FP, BA78M□□CP/FP
Parameter
Power supply voltage
TO220CP-3
Power Dissipation 1
TO252-3
TO220CP-3
Power Dissipation 2
TO252-3
Symbol
Vin
Limits
Unit
V
35
＊1
2
1
Pd1
W
W
A
＊1
＊2
＊2
＊3
22
10
1
Pd2
Io
BA78□□
BA78□□M
Output Current
＊3
0.5
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
Tj
-40～+85
-55～+150
-40～+150
℃
℃
℃
Operating Junction Temperature Range
＊1 Derating in done 16mW/℃(TO220CP-3), 8mW/℃(TO252-3) for temperatures above Ta=25℃
＊2 Derating in done 176mW/℃(TO220CP-3), 80mW/℃(TO252-3) for temperatures above Ta=25℃, Mounted on infinity Alminium heat sink.
＊3 Pd,ASO and Tjmax(150℃) should not be exceeded.
●Operating Conditions(Ta=25℃, Pd should not be exceeded)
BA78□□CP/FP
BA78M□□CP/FP
Parameter
Symbol Min.
Max.
25
21
22
23
26
25
27
30
33
33
33
1
Unit.
Parameter
Symbol Min.
Max.
25
21
22
23
26
25
27
30
33
33
33
0.5
Unit.
BA7805
7.5
8.5
9.5
10.5
11.5
BA78M05
7.5
8.5
9.5
10.5
11.5
BA7806
BA7807
BA7808
BA7809
BA7810
BA7812
BA7815
BA7818
BA7820
BA7824
BA78M06
BA78M07
BA78M08
BA78M09
BA78M10
BA78M12
BA78M15
BA78M18
BA78M20
BA78M24
Input
Voltage
Input
Voltage
Vin
Io
V
Vin
Io
V
12.5
14.5
17.5
21
23
27
12.5
14.5
17.5
21
23
27
Output Current
-
A
Output Current
-
A
2/12
●BA78M□□CP/FP
ELECTRICALCHARACTERISTICS
(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＝350mA unless otherwise specified)
Limit
Parameter
Symbol
Type
Unit
Condition
Min
4.8
Typ
5.0
Max
5.2
05
06
07
08
09
10
12
15
18
20
24
05
5.75
6.7
6.0
6.25
7.3
7.0
7.7
8.0
8.3
9.4
8.6
9.0
Output Voltage 1
Vo1
V
Io=350mA
9.6
10.0
12.0
15.0
18.0
20.0
24.0
－
10.4
12.5
15.6
18.7
20.8
25.0
5.25
11.5
14.4
17.3
19.2
23.0
4.75
Vin=7.5～20V, Io=5mA～350mA
Vin=8.5～21V, Io=5mA～350mA
Vin=9.5～22V, Io=5mA～350mA
Vin=10.5～23V, Io=5mA～350mA
Vin=11.5～24V, Io=5mA～350mA
Vin=12.5～25V, Io=5mA～350mA
Vin=15～27V, Io=5mA～350mA
Vin=17.5～30V, Io=5mA～350mA
Vin=21～33V, Io=5mA～350mA
Vin=23～33V, Io=5mA～350mA
Vin=27～33V, Io=5mA～350mA
Vin=7～25V, Io=200mA
－
－
－
－
－
－
－
－
－
－
3
3
4
4
4
5
5
6
7
8
10
1
1
1
1
2
2
3
3
3
4
5
78
74
71
69
67
66
63
60
58
58
55
-1.0
-0.5
-0.6
-0.7
875
2.0
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
5.7
6.65
7.6
8.55
9.5
11.4
14.25
17.1
19.0
22.8
－
6.3
7.35
8.4
9.45
10.5
12.6
15.75
18.9
21.0
25.2
100
100
100
100
100
100
100
100
100
100
100
50
Output Voltage 2
Line Regulation 1
Line Regulation 2
Ripple Rejection
Vo2
V
－
Vin=8～25V, Io=200mA
Vin=9～25V, Io=200mA
－
－
Vin=10.5～25V, Io=200mA
Vin=11.5～26V, Io=200mA
Vin=12.5～28V, Io=200mA
Vin=14.5～30V, Io=200mA
Vin=17.5～30V, Io=200mA
Vin=21～33V, Io=200mA
Vin=23～33V, Io=200mA
Vin=27～33V, Io=200mA
Vin=8～12V, Io=200mA
Vin=9～25V, Io=200mA
Vin=10～25V, Io=200mA
Vin=11～25V, Io=200mA
Vin=12～25V, Io=200mA
Vin=14～26V, Io=200mA
Vin=16～30V, Io=200mA
Vin=20～30V, Io=200mA
Vin=24～33V, Io=200mA
Vin=24～33V, Io=200mA
－
Reg.I1
－
mV
mV
dB
－
－
－
－
－
－
－
50
50
50
50
50
50
50
50
－
－
－
Reg.I2
－
－
－
－
－
50
50
－
－
Vin=28～33V, Io=200mA
05
06
07
08
09
10
12
15
62
60
57
56
56
56
55
54
53
53
50
－
－
－
－
－
ein=1Vrms, f=120Hz,
Io=100mA
R.R.
Tcvo
－
－
－
－
18
20
24
－
－
－
05
Temperature
Coefficient of
Output Voltage
－
－
06/07/08/09/10/12
15/18
mV/℃ Io=5mA, Tj=0～125℃
－
－
－
－
20/24
common
common
－
－
Tj=25℃
Io=500mA
Peak Output Current
Dropout Voltage
Io-p
Vd
mA
V
－
－
3/12
●BA78M□□CP/FP
ELECTRICALCHARACTERISTICS
(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＝350mA unless otherwise specified)
Limit
Parameter
Symbol
Type
Unit
Condition
Min
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
Typ
20
20
20
20
20
20
20
20
20
20
20
10
10
10
10
10
10
10
10
10
10
10
40
60
70
80
90
100
110
130
140
150
170
4.5
－
Max
100
120
140
160
180
200
240
300
360
400
480
50
60
70
80
90
100
120
150
180
200
240
－
05
06
07
08
09
10
Io=5mA～500mA
Load Regulation 1
Reg.L1
mV
12
15
18
20
24
05
06
07
08
09
10
Io=5mA～200mA
Load Regulation 2
Reg.L2
mV
12
15
18
20
24
05
06
07
－
－
－
08
－
09
10
12
Output Noise
Voltage
μV
f=10Hz～100kHz
Vn
－
－
－
15
18
20
－
－
－
24
common
Bias Current
Ib
6.0
0.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
－
mA
mA
Io=0mA
Io=5mA～350mA
Bias Current Change1
Ib1
common
－
Vin:8～25V, Io=200mA
Vin:9～25V, Io=200mA
Vin:10～25V, Io=200mA
Vin:10.5～25V, Io=200mA
Vin:12～25V, Io=200mA
Vin:13～25V, Io=200mA
Vin:14.5～30V, Io=200mA
Vin:17.5～30V, Io=200mA
Vin:21～33V, Io=200mA
Vin:23～33V, Io=200mA
Vin:27～33V, Io=200mA
Vin=25V
05
－
06
07
08
－
－
－
09
10
12
15
18
20
24
Bias Current Change 2
Ib2
Ios
Ro
－
mA
－
－
－
－
－
05/06/07/08
09/10/12/15/18/20/24
0.4
0.17
9
10
11
12
13
14
16
19
22
25
37
Short-Circuit
A
Output Current
－
Vin=30V
－
05
06
07
08
09
10
12
15
18
20
24
－
－
－
－
mΩ
Output Resistance
－
f=1kHz
－
－
－
－
－
4/12
●BA78□□CP/FP
ELECTRICALCHARACTERISTICS
(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)
Limit
Parameter
Symbol
Type
Unit
Condition
Min
4.8
Typ
5.0
Max
5.2
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
5.75
6.7
6.0
6.25
7.3
7.0
7.7
8.0
9.0
8.3
9.4
8.6
9.6
Output Voltage 1
Vo1
V
Io=500mA
10.0
12.0
15.0
18.0
20.0
24.0
－
10.4
12.5
15.6
18.7
20.8
25.0
5.25
11.5
14.4
17.3
19.2
23.0
4.75
Vin=7.5～20V, Io=5mA～1A
Vin=8.5～21V, Io=5mA～1A
Vin=9.5～22V, Io=5mA～1A
Vin=10.5～23V, Io=5mA～1A
Vin=11.5～26V, Io=5mA～1A
Vin=12.5～25V, Io=5mA～1A
Vin=15～27V, Io=5mA～1A
Vin=17.5～30V, Io=5mA～1A
Vin=21～33V, Io=5mA～1A
Vin=23～33V, Io=5mA～1A
Vin=27～33V, Io=5mA～1A
Vin=7～25V, Io=500mA
－
－
－
－
－
－
－
－
－
－
3
4
5
5
6
7
8
9
10
12
15
1
2
2
3
4
4
5
5.7
6.65
7.6
8.55
9.5
11.4
14.25
17.1
19.0
22.8
－
6.3
7.35
8.4
9.45
10.5
12.6
15.75
18.9
21.0
25.2
100
120
140
160
180
200
240
300
360
400
480
50
60
70
80
90
100
120
150
180
200
240
－
Output Voltage 2
Line Regulation 1
Line Regulation 2
Ripple Rejection
Vo2
V
－
Vin=8～25V, Io=500mA
Vin=9～25V, Io=500mA
－
－
Vin=10.5～25V, Io=500mA
Vin=11.5～26V, Io=500mA
Vin=12.5～27V, Io=500mA
Vin=14.5～30V, Io=500mA
Vin=17.5～30V, Io=500mA
Vin=21～33V, Io=500mA
Vin=23～33V, Io=500mA
Vin=27～33V, Io=500mA
Vin=8～12V, Io=500mA
－
Reg.I1
－
mV
mV
dB
－
－
－
－
－
－
－
Vin=9～13V, Io=500mA
－
Vin=10～15V, Io=500mA
Vin=11～17V, Io=500mA
Vin=13～19V, Io=500mA
Vin=14～20V, Io=500mA
Vin=16～22V, Io=500mA
Vin=20～26V, Io=500mA
Vin=24～30V, Io=500mA
Vin=26～32V, Io=500mA
Vin=30～33V, Io=500mA
－
－
Reg.I2
－
－
－
5
5
7
－
－
－
10
78
73
69
65
64
64
63
62
61
60
58
-1.0
-0.5
-0.6
-0.7
1.7
2.0
62
59
57
56
56
55
55
54
53
53
50
－
－
－
－
－
ein=1Vrms, f=120Hz,
Io=100mA
R.R.
Tcvo
－
－
12
15
18
20
24
－
－
－
－
－
05
Temperature
Coefficient of
Output Voltage
－
－
06/07/08/09/10/12
15/18
mV/℃ Io=5mA, Tj=0～125℃
－
－
－
－
20/24
common
common
－
－
Tj=25℃
Io=1A
Peak Output Current
Dropout Voltage
Io-p
Vd
A
V
－
－
5/12
●BA78□□CP/FP
ELECTRICALCHARACTERISTICS
(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)
Limit
Parameter
Symbol
Type
Unit
Condition
Min
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
Typ
15
16
17
19
20
21
23
27
30
32
37
5
Max
100
120
140
160
180
200
200
300
360
400
480
50
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
24
05
06
07
08
09
10
12
15
18
20
Io=5mA～1A
Load Regulation 1
Reg.L1
mV
6
6
7
8
60
70
80
90
Io=250mA～750mA
Load Regulation 2
Reg.L2
mV
8
90
10
10
12
14
15
40
60
70
80
90
100
110
125
140
150
180
4.5
－
100
150
180
200
240
－
－
－
－
－
Output Noise
Voltage
μV
f=10Hz～100kHz
Vn
－
－
－
－
－
－
24
Bias Current
Bias Current Change 1
Ib
Ib1
common
common
8.0
0.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
－
mA
mA
Io=0mA
Io=5mA～1A
－
Vin:8～25V, Io=500mA
Vin:8.5～25V, Io=500mA
Vin:9.5～25V, Io=500mA
Vin:10.5～25V, Io=500mA
Vin:11.5～26V, Io=500mA
Vin:12.5～27V, Io=500mA
Vin:14.5～30V, Io=500mA
Vin:17.5～30V, Io=500mA
Vin:21～33V, Io=500mA
Vin:23～33V, Io=500mA
Vin:27～33V, Io=500mA
Vin=25V
05
06
07
08
09
10
12
15
－
－
－
－
Bias Current Change 2
Ib2
Ios
Ro
－
mA
－
－
－
18
20
24
－
－
05/06/07/08
09/10/12/15/18/20/24
0.6
0.3
9
Short-Circuit
A
Output Current
－
Vin=30V
－
05
06
07
08
09
10
12
15
18
20
24
－
10
10
10
10
11
12
14
17
19
27
－
－
－
－
－
－
－
－
－
－
mΩ
Output Resistance
－
f=1kHz
－
－
－
－
－
6/12
BA78M
z
Characteristics data(Ta=25°C, Vin=10V(05), 14V(08), 23V(15) unless otherwise specified)
20
15
10
5
20
20
15
10
5
Ta=25°C
Io=350mA
BA78M15
Ta=25°C
Io=500mA
Ta=25°C
Io=0mA
15
10
5
BA78M15
BA78M15
BA78M08
BA78M05
BA78M08
BA78M05
BA78M08
BA78M05
0
0
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Vin [V]
Vin [V]
Vin [V]
Fig.2 Line Regulation (Io=350mA)
Fig.1 Line Regulation (Io=0mA)
Fig.3 Line Regulation(Io=500mA)
2.0
20
15
10
5
6
5
4
3
2
1
0
Ta=25°C
Ta=25°C
Io=0mA
Ta=25°C
BA78M05
BA78M15
1.5
1.0
0.5
0.0
BA78M15
BA78M08
BA78M05
BA78M08
BA78M08
BA78M05
BA78M15
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0.0
0.5
1.0
1.5
2.0
Vin [V]
Vin [V]
Io [A]
Fig.5 Load Regulation
Fig.4 Vin - Ib
Fig.6 Peak Output Current
100
80
1.0
0.8
0.6
0.4
0.2
0.0
2.0
Ta=25°C
Ta=25°C
BA78M05
BA78M05
BA78M08
BA78M15
1.5
1.0
0.5
0.0
BA78M05
BA78M08
BA78M15
60
BA78M15
BA78M08
40
20 Ta=25°C
Io=100mA
0
10
100
1K
10K
100K
1M
0
0.1
0.2
0.3
0.4
0.5
0
5
10
15
20
25
30
Frequency［Hz］
Io [A]
Vin [V]
Fig.9 Ripple Rejection Ratio
Fig.8 Short – Circuit Output Current
Fig.7 Dropout Voltage
1.5
1.0
6
6
Ta=25°C
Io=5mA
Io=0mA
BA78M15
BA78M15
5
4
3
2
1
0
5
BA78M05
0.5
4
BA78M08
BA78M05
BA78M08
0.0
3
2
1
0
BA78M05
BA78M15
BA78M08
-0.5
-1.0
-1.5
-40
-20
0
20
40
60
80
100
0
0.1
0.2
0.3
0.4
0.5
-40
-20
0
20
Ta [
40
]
℃
60
80
100
Io [A]
Ta[℃]
Fig.12 Io - Ib
Fig.11 Ta - Ib
7/12
Fig.10 Ta - Vo
BA78
z
Characteristics data (Ta=25°C, Vin=10V(05), 14V(08), 23V(15) unless otherwise specified)
20
20
15
10
5
20
15
10
5
Ta=25°C
Io=500mA
Ta=25°C
Io=1A
Ta=25°C
Io=0mA
15
10
5
BA7815
BA7815
BA7815
BA7808
BA7805
BA7808
BA7805
BA7808
BA7805
0
0
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
0
5
10
15
Vin [V]
20
25
30
Vin [V]
Vin [V]
Fig.14 Line Regulation (Io=500mA)
Fig15. Line Regulation (Io=1A)
Fig.13 Line Regulation (Io=0mA)
6
5
4
3
2
1
0
20
2.0
Ta=25°C
Io=0mA
Ta=25°C
Ta=25°C
BA7815
BA7805
15
10
5
1.5
BA7805
BA7808
BA7808
BA7815
1.0
0.5
0.0
BA7808
BA7805
BA7815
0
0
5
10
15
20
25
30
0.0
0.5
1.0
1.5
2.0
0
5
10
15
20
25
30
Vin [V]
Io [A]
Vin [V]
Fig.17 Load Regulation
Fig.16 Vin - Ib
Fig.18 Peak Output Current
2.0
1.5
1.0
0.5
0.0
2
1.5
1
100
80
60
40
20
Ta=25°C
Ta=25°C
BA7805
BA7805
BA7808
BA7815
BA7805
BA7808
BA7815
BA7808
BA7815
0.5
0
Ta=25°C
Io=100mA
0
10
100
1K
Frequency [Hz]
10K
100K
1M
0
0.2
0.4
0.6
0.8
1
0
5
10
15
Vin [V]
20
25
30
Io [A]
Fig.19 Dropout Voltage
Fig.21 Ripple Rejection Ratio
Fig.20 Short – Circuit Output Current
6
6
1.5
Io=0mA
BA7815
Io=5mA
Ta=25°C
BA7815
5
4
3
2
1
0
5
1.0
0.5
4
BA7808
BA7808
BA7805
BA7815
BA7805
3
0.0
BA7805
-0.5
-1.0
-1.5
2
BA7808
1
0
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
0
0.2
0.4
0.6
0.8
1
Ta [℃]
Ta [℃]
Io [A]
Fig.24 Io - Ib
Fig.22 Ta - Vo
Fig.23 Ta - Ib
8/12
●Internal Circuit Structural Diagram
INPUT
R9
R13
D2
R8
Q8
R4
R10
Q9
Q16
Q12
Q17
R21
R17
R12
R11
Q15
R5
R6
Q10
OUTPUT
Q6
R2
Q13
Q5
R20
R19
R15
C1
R16
Q11
R1
D1
Q7
Q18
Q4
Q1
Q14
Q3
Q2
R14
D3
R7
R22
R3
R18
COMMON
FIN
1
2 3
TO220CP-3
TO252-3
PIN No.
Symbol
INPUT
Function
PIN No.
Symbol
INPUT
Function
Input terminal
1
2
3
Input terminal
Ground terminal
Output terminal
1
2
3
COMMON
OUTPUT
N.C.
Non connection terminal
Output terminal
OUTPUT
COMMON
FIN
Ground terminal
●Protection Circuit
(1)Over-current protection circuit
Vin=10V
6
BA7805CP
When the maximum rating current or more is rushed, it controls the current
ability and protects the IC from destruction.
5
4
3
2
1
0
1
2
Output Current : IO[A]
(2) Thermal shutdown circuit
6
When the chip temperature of IC exceeds the setting temperature, the IC goes
OFF, and it controls the IC not to be destroyed by the heat generation.
It can be restored by being lowered the chip temperature of IC below the
setting temperature.
5
4
3
2
Vin=10V
BA7805CP
1
0
200
75 100 125 150 175
25
50
Chip Junction temperature : Tj [°C]
(3) Safety operation area control circuit
It controls the output current in inverse proportion ratio to voltage difference
(input-output).
When voltage difference becomes bigger, the IC will be destroyed in rush
current.
2
Tj=25°C
BA7805CP
1.5
1
It protects the IC by controlling the current ability according to the voltage level.
0.5
0
10
20
30
40
Input-Output voltage difference: Vin-Vo [V]
9/12
●Thermal design
Refer to the following thermal derating curves (Fig. 25, 26), when using in the status of Ta=25°C or more.
The characteristic of IC is greatly related to the operating temperature.
When it is used in over maximum junction temperature, the elements inside IC might become weaker and be destroyed.
It is recommended to take into consideration thermal of IC.
Note that the temperatures are in the allowed temperature limits and operated within Pd.
It is necessary to operate it at junction temperature Tjmax or less to prevent IC from the thermal destruction.
Please operate IC within permissible loss Pd because the junction temperature Tj might become considerably a high
temperature even if ambient temperature Ta is normal temperature (25°C).
Power consumption Pc(W) may be expressed by the equation shown below:
Vin : Input Voltage
Vo : Output Voltage
Io : Output Current
Ib : Bias current
Pc=(Vin-Vo) ×Io+ Vin×Iｂ
permissible loss Pd≧Pc
Pd − Vin × Ib
Io ≦
Vin − Vo
Maximum Output current IoMAX can be calculated in thermal design.
・Calculation example
Ex.1) Ta=85°C, Vin =7.5V, Vo=5.0V
Using TO220CP-3 alone
θja=62.5°C/W→16mW/°C
Pd=1.04W at 85°C
1.04 − 7.5× 4.5m
7.5 − 5.0
Io≦
Io≦400mA
Be sure to use this IC within a power dissipation at the range of operating temperature.
25
20
12.5
10
(1) Mounted on infinity Alminium heat sinkθj-c=12.5 (°C/W)
(2) Using an IC aloneθj-a=125.0°C/W
(1) Mounted on infinity Alminium heat sinkθj-c=5.7(℃/W)
(2) Using an IC aloneθj-a=62.5℃/W
(1) 22.0
(1) 10.0
15
10
7.5
5
5
0
2.5
0
(2) 2.0
(2) 1.0
0
25
50
75
100
125
150
0
25
50
75
100
125
150
AMBIENT TEMPERATURE : Ta[°C]
AMBIENT TEMPERATURE : Ta[°C]
Fig.25 Thermal derating curve (TO220CP-3)
Fig.26 Thermal derating curve (TO252-3)
● Terminal Setting and Cautions
・INPUT
It is recommended that a capacitor (about 0.33uF) be inserted between INPUT and COMMON.
The value of capacitor is designed suitable for the actual application.
・OUTPUT
It is recommended that a capacitor (about 0.1uF) be inserted between OUTPUT and COMMON.
A tantalum capacitor can also be used for this pin because insufficient capacitors may cause oscillation by a temperature
change.
・COMMON
Keep the no voltage drop between Ground level of set board and IC.
When there is the voltage difference, setting voltage becomes inaccuracy and unstable.
It is recommended to connect by wide, short pattern, and lower the inpedance.
10/12
●Note 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
Resistor
Transistor (NPN)
B
C
E
Backflow prevention diode
Pin A
B
C
Pin B
E
VCC
Parasitic
element
N
P
GND
N
N
P+
Output terminal
P+
P+
P+
P
Other adjacent elements
Pin A
N
N
N
P substrate
P substrate
GND
GND
GND
Parasitic element
Parasitic element
Parasitic
element
Fig.27 Bypass Diode
Fig.28 Simplified structure of monorisic IC
11/12
●Ordering part number
78 Series common No.
B A
7 8
M
0 5
F P
E 2
ROHM prefix
Output Current
Without M : 1A
With M : 0.5A
Package
Package specification
E2 : Embossed taping
Output Voltage
05 : 5V
CP : TO220CP-3
FP : TO252-3
24 : 24V
TO220CP-3
<Dimension>
<Tape and Reel information >
Tape
Embossed carrier tape
4.5 0.1
φ
3.2 0.1
10.0 +0.3
2.8 +0.2
-0.1
-
0.1
Quantity
500pcs
E2
Direction
Of feed
(The direction is the 1pin of product is at the upper left when you hold
reel on the left hand and you pull out the tape on the right hand)
１２３４
１２３４
１２３４
１２３４
１２３４
1 2 3
(0.585)
0.42 0.1
2.85
0.82 0.1
1.30
2.54
2.46
1Pin
Direction of feed
Reel
(Unit:mm)
※When you order , please order in times the amount of package quantity.
TO252-3
<Dimension >
< Tape and Reel information >
Tape
Embossed carrier tape
C0.5
2.3±0.2
6.5±0.2
5.1−+00..12
Quantity
2000pcs
0.5±0.1
E2
FIN
Direction
Of feed
(The direction is the 1pin of product is at the upper left when you hold
reel on the left hand and you pull out the tape on the right hand)
1
2
3
x
x
x x
x
x
x x
x
x
x x
x
x
x x
x
x
x x
x x x x
0.65
0.75
2.3
0.65
0.5±0.1
1.0±0.2
±
0.2 2.3±0.2
1Pin
Reel
(Unit:mm)
※When you order , please order in times the amount of package quantity.
12/12
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level
of reliability and the malfunction of which would directly endanger human life (such as medical
instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers
and other safety devices), please be sure to consult with our sales representative in advance.
It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance
of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow
for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in
order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM
cannot be held responsible for any damages arising from the use of the products under conditions out of the
range of the specifications or due to non-compliance with the NOTES specified in this catalog.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact your nearest sales office.
THE AMERICAS / EUPOPE / ASIA / JAPAN
ROHM Customer Support System
Contact us : webmaster@ rohm.co.jp
www.rohm.com
TEL : +81-75-311-2121
FAX : +81-75-315-0172
Copyright © 2007 ROHM CO.,LTD.
21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan
Appendix1-Rev2.0
相关型号：
BA7810FP-E2
Fixed Positive Standard Regulator, 10VBIPolar, PSSO2, ROHS COMPLIANT, TO-252, 3 PIN
ROHM
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