MIC2981/2982
Micrel
MIC2981/2982
High-Voltage High-Current Source Driver Array
Preliminary Information
General
The MIC2981/82 is an 8-channel, high-voltage, high-current
source driver array ideal for switching high-power loads from
logic-level TTL, CMOS, or PMOS control signals.
These drivers can manage multiple loads of up to 50V and
500mA, limited only by package power dissipation.
Micrel鈥檚 MIC2981/82 features inputs compatible with 5V TTL
and 5V to 15V CMOS or PMOS logic outputs. Micrel鈥檚 dual-
marked device replaces either UDN2981 or UDN2982 de-
vices.
The MIC2981/82 is available in the 18-pin plastic DIP and 18-
lead wide SOP package. Both devices operate in the indus-
trial temperature range.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Output voltage to 50V
Output current to 500mA
Transient-protected outputs
Integral clamp diodes
TTL, CMOS, or PMOS compatible inputs
Applications
鈥?Relay and solenoid switching
鈥?Stepping motor
鈥?LED and incandescent displays
Ordering Information
Part Number
MIC2981BN/
MIC2982BN*
MIC2981BWM/
MIC2982BWM*
Temperature Range
鈥?0掳C to +85掳C
鈥?0掳C to +85掳C
Package
18-pin DIP
18-pin wide SOP
* Orders for MIC2981BN or MIC2982BN will be filled with dual-marked
MIC2981/82BN. Orders for MIC2981BWM or MIC2982BWM will be
filled with dual-marked MIC2981/82BWM.
Functional Diagrams
IN1
OUT1
V
S
IN2
OUT2
20k
IN3
OUT3
1.8k
IN
IN4鈥揑N7
4
OUT4鈥揙UT7
800鈩?/div>
1.5k
OUT
IN8
OUT8
GND
V
S
MIC2981
MIC2982
GND
Typical MIC2891/2982 Source Driver
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
November 1999
1
MIC2981/2982
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