MIC2803/2804
Micrel
MIC2803/2804
High-Voltage High-Current Darlington Array
Not Recommended for New Designs
General
The MIC2803 and MIC2804 are high-voltage, high-current
Darlington arrays ideal for switching high-power loads from
logic-level TTL, CMOS, or PMOS control signals.
The MIC2803/4 Darlington transistor array can be used to
manage multiple loads of up to 50V and 500mA, limited by
package power dissipation.
The MIC2803 features inputs compatible with 5V TTL and
CMOS logic while the MIC2804 features inputs compatible
with 6V to 15V CMOS or PMOS logic outputs.
The MIC2803/4 is available in 18-pin plastic DIP and wide
SOIC packages in the –40°C to +85°C temperature range.
Features
•
•
•
•
•
Output voltage to 50V
Output current to 500mA
Open-collector outputs
Integral clamp diodes
TTL, CMOS, or PMOS compatible inputs
Applications
• Relay and solenoid switching
• Stepping motor
• LED and incandescent displays
Ordering Information
Part Number
MIC2803BN
MIC2803BWM
MIC2804BN
MIC2804BWM
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
18-pin DIP
18-pin wide SOIC
18-pin DIP
18-pin wide SOIC
Functional Diagrams
COM
2.7k
IN
1
18
OUT
IN1
2
OUT1
7.2K
17
3K
IN2
3
OUT2
16
IN3
4–7
OUT3
Typical MIC2803 Darlington Driver
15–12
IN4–IN7
8
4
OUT4–OUT7
COM
11
IN8
9
OUT8
10
10.5k
IN
7.2K
3K
OUT
GND
MIC2803
MIC2804
COM
Typical MIC2804 Darlington Driver
6-34
April 1998
MIC2803/2804
Micrel
Absolute Maximum Ratings
Output Voltage (V
CE
) .................................................... 50V
Continuous Output Current (I
C
) ................................ 500mA
Input Voltage (V
IN
) ........................................................ 30V
Continuous Input Current (I
IN
) .................................... 25mA
Storage Temperature (T
S
) ....................... –65°C to +150°C
Operating Ratings
Ambient Temperature (T
A
) ......................... –40°C to +85°C
Package Thermal Resistance
PDIP
θ
JA
.............................................................. 56°C/W
SOIC
θ
JA
............................................................. 84°C/W
Electrical Characteristics
V
CC
= 50V, T
A
= 25°C, unless noted.
Symbol
I
CEX
Parameter
Output Leakage Current
MIC2804
V
CE(sat)
Collector-Emitter Saturation Voltage
Condition
T
A
= +25°C
T
A
= +70°C
T
A
= +85°C, V
IN
= 1.0V
I
C
= 100mA, I
IN
= 250µA
I
C
= 200mA, I
IN
= 350µA
I
C
= 350mA, I
IN
= 500µA
MIC2803
MIC2804
I
IN(off)
V
IN(on)
Input Voltage
MIC2803
V
IN
= 3.85V
V
IN
= 5.0V
V
IN
= 12V
I
C
= 500µA, T
A
= +85°C
V
CE
= 2.0V, I
C
= 200mA
V
CE
= 2.0V, I
C
= 250mA
V
CE
= 2.0V, I
C
= 300mA
V
CE
= 2.0V, I
C
= 125mA
V
CE
= 2.0V, I
C
= 200mA
V
CE
= 2.0V, I
C
= 275mA
V
CE
= 2.0V, I
C
= 350mA
15
0.5E
IN
to 0.5E
OUT
0.5E
IN
to 0.5E
OUT
V
R
= 50V, T
A
= +25°C
V
R
= 50V, T
A
= +85°C
I
F
= 350mA
1.7
0.15
0.05
50
0.9
1.1
1.3
0.93
0.35
1.0
65
2.4
2.7
3.0
5.0
6.0
7.0
8.0
25
1.0
1.0
50
100
2.0
Min
Typ
Max
50
100
500
1.1
1.3
1.6
1.35
0.5
1.45
Units
µA
µA
µA
V
V
V
mA
mA
mA
µA
V
V
V
V
V
V
V
pF
µs
µs
µA
µA
V
I
IN(on)
Input Current
MIC2804
C
IN
t
ON
t
OFF
I
R
V
F
Input Capacitance
Turn-On Delay
Turn-Off Delay
Clamp Diode Leakage Current
Clamp Diode Forward Voltage
General Note:
Devices are ESD protected; however, handling precautions are recommended.
6-36
April 1998
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