BA612 [ROHM]
5-channel high current driver; 5通道高电流驱动器
| 型号： | BA612 |
| 厂家： | 
ROHM |
| 描述： | 5-channel high current driver |
| 文件： | 总4页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Standard ICs
5-channel high current driver
BA612
The BA612 is a high-current driver IC, and contains an array of five Darlington transistors, each with input resistance.
Input and output can be directed in the same direction using DIP Pin 14, with the layout optimized to facilitate mount-
ing.
Applications
•
Hammer solenoid drivers
Relay drivers
LED drivers
Features
•
1) 5-circuit Darlington transistor array.
2) Large current (up to 400mA) can be driven.
3) Input and output pins are aligned in the same direc-
tion, for easy mounting.
4) High current transfer ratio.
5) Can be coupled with MOS ICs.
Block diagram
•
1
2
3
4
5
6
7
14
13
12
11
10
9
N.C.
IN1
N.C.
OUT1
OUT2
OUT3
OUT4
OUT5
N.C.
IN2
IN3
IN4
IN5
8
GND
Sub
1
Standard ICs
BA612
Absolute maximum ratings (Ta = 25°C)
•
Parameter
Power supply voltage
Symbol
VCC
Limits
24
Unit
V
Power dissipation
Pd
550
mW
°C
°C
mA
V
Operating temperature
Storage temperature
Topr
Tstg
IC
– 25 ~ + 75
– 55 ~ + 125
450
Collector current
Input pin voltage withstanding ( + )
Input pin voltage withstanding ( – )
VIN +
VIN –
24
– 0.5
V
Reduced by 5.5mW for each increase in Ta of 1°C over 25°C
Internal circuit configuration
•
13
12
11
10
9
Q1
Q3
Q5
R3
Q7
Q9
R1
R1
R1
R1
5
R1
3
4
6
2
Q4
Q6
Q8
Q10
Q2
R2
R2
R2
R2
R2
R3
R3
R3
R3
7
R1 = 25kΩ
R2 = 25kΩ
R3 = 2kΩ
Fig.1
Electrical characteristics (unless otherwise noted, Ta = 25°C)
•
Measurement
circuit
Parameter
Symbol Min. Typ. Max. Unit
Conditions
—
Usage voltage range
Output leakage current
Output current (1 circuit)
Output current (5 circuits)
Collector saturation voltage
DC current transfer ratio
Input current
VCC
IL
—
—
—
—
—
20
V
—
100 µA VCC = 26V, VIN = 0V
Fig.10
Fig.11
—
IOUT
IOUT
VCE (sat)
hFE
—
400 mA When only 1 circuit is on
Fig.3
—
—
V
DC per circuit when all 5 circuits are on at once
—
2000
—
2.0
—
IOUT = 400mA, VIN = 17V
—
Fig.11
—
—
—
IIN
0.6
1.0
mA VIN = 17V, IOUT = 0mA
Fig.11
2
Standard ICs
BA612
Electrical characteristic curves
•
1000
500
400
300
200
100
0
4.0
3.2
2.4
1.6
0.8
0
800
All 5 circuits on at once
Repetition: 1Hz min.
600
550
400
200
0
VIN = 17V
Ta = 25°C
Ta = 50°C
75
125
– 25
0
40
80
120
160
0
20
40
60
80
100
0
200
OUTPUT CURRENT: IOUT (mA)
400
AMBIENT TEMPERATURE: Ta (°C)
DUTY CYCLE: (%)
Fig.2 Power dissipation vs. ambient
temperature
Fig.3 Output current vs. duty cycle
Fig.4 Output saturation voltage vs.
output current
10
36
28
105
8
6
4
2
0
VO = 1.5V
3
+ 75
IO = 400mA
When IO = 20mA
20
+ 100
+ 50
+ 25
104
IO = 200mA
12
0
— 25
— 50°C
4
0
103
0
2
4
6
8
10
– 40
0
40
80
120
– 40 – 20
0
20 40 60 80
INPUT VOLTAGE: VIN (V)
AMBIENT TEMPERATURE: Ta (°C)
AMBIENT TEMPERATURE: Ta (°C)
Fig.5 Output voltage vs. input voltage
(temperature characteristic)
Fig.6 Input threshold voltage vs.
ambient temperature
Fig.7 DC current amplification ratio vs.
ambient temperature (!)
(when VO = 1.5V)
2.0
1.6
1.2
0.8
0.4
0
105
IO = 400mA
VO = 2.0V
3
IO = 400mA
104
IO = 200mA
IO
IO = 200mA
VIN
17V
VO (sat)
103
– 40
0
40
80
120
– 40 – 20
0
20 40 60 80 100
AMBIENT TEMPERATURE: Ta (°C)
AMBIENT TEMPERATURE: Ta (°C)
Fig.9 Output saturation voltage vs.
ambient temperature
Fig.8 DC current amplification ratio vs.
ambient temperature (@)
(when VO = 2V)
3
Standard ICs
BA612
Measurement circuit
Application example
•
•
VCC 26V
VCC
IL
OUT
IN
BA612
BA6121 5 circuit
7
PMOS
GATE
Fig.10
Fig.12
Connections should be made as shown in Figure 12 if
inductive load is being driven.
OUT
IN
BA612
IIN
A clamp diode has to be added in series with the load
to suppress surges in the inductive load.
IOUT
VIN
17V
7
VOUT (sat)
Fig.11
External dimensions (Units: mm)
•
19.4 ± 0.3
14
1
8
7
7.62
2.54
0.5 ± 0.1
0° ~ 15°
DIP14
4
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