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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 -40C to +85C 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 -40C to +85C -40C to +85C -40C to +85C -40C to +85C 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
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April 1998
MIC2803/2804
Micrel
Pin Configuration
IN1 1 IN2 2 IN3 3 IN4 4 IN5 5 IN6 6 IN7 7 IN8 8 GND 9
18 OUT1 17 OUT2 16 OUT3 15 OUT4 14 OUT5 13 OUT6 12 OUT7 11 OUT8 10 COM
18-Pin DIP (N) 18-Pin Wide SOIC (WM)
Pin Description
Pin Number 1-8 9 10 11-18 Pin Name IN1-IN8 GND COM OUT8-OUT1 Pin Function Input 1 through Input 8: Base drive to Darlington transistor via current limiting resistor. Ground Clamp Diode Common Output 8 through Output 1: Open collector output of Darlington transistor.
6
April 1998
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MIC2803/2804
Micrel
Absolute Maximum Ratings
Output Voltage (VCE) .................................................... 50V Continuous Output Current (IC) ................................ 500mA Input Voltage (VIN) ........................................................ 30V Continuous Input Current (IIN) .................................... 25mA Storage Temperature (TS) ....................... -65C to +150C
Operating Ratings
Ambient Temperature (TA) ......................... -40C to +85C Package Thermal Resistance PDIP JA .............................................................. 56C/W SOIC JA ............................................................. 84C/W
Electrical Characteristics
VCC = 50V, TA = 25C, unless noted. Symbol ICEX Parameter Output Leakage Current MIC2804 VCE(sat) Collector-Emitter Saturation Voltage Condition TA = +25C TA = +70C TA = +85C, VIN = 1.0V IC = 100mA, IIN = 250A IC = 200mA, IIN = 350A IC = 350mA, IIN = 500A MIC2803 MIC2804 IIN(off) VIN(on) Input Voltage MIC2803 VIN = 3.85V VIN = 5.0V VIN = 12V IC = 500A, TA = +85C VCE = 2.0V, IC = 200mA VCE = 2.0V, IC = 250mA VCE = 2.0V, IC = 300mA VCE = 2.0V, IC = 125mA VCE = 2.0V, IC = 200mA VCE = 2.0V, IC = 275mA VCE = 2.0V, IC = 350mA 15 0.5EIN to 0.5EOUT 0.5EIN to 0.5EOUT VR = 50V, TA = +25C VR = 50V, TA = +85C IF = 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 A A A V V V mA mA mA A V V V V V V V pF s s A A V
IIN(on)
Input Current
MIC2804
CIN tON tOFF IR VF
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.
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April 1998

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