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June 2005 1 MIC2981/2982
MIC2981/2982 Micrel, Inc.
MIC2981/2982
High-Voltage High-Current Source Driver Array
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’s MIC2981/82 features inputs compatible with 5V TTL
and 5V to 15V CMOS or PMOS logic outputs. Micrel’s
dual-marked device replaces either UDN2981 or UDN2982
devices.
The MIC2981/82 is available in the 18-pin plastic DIP and
18-lead wide SOP package. Both devices operate in the
industrial temperature range.
Functional Diagrams
OUT1
OUT2
OUT3
OUT4–OUT7
OUT8
MIC2981
MIC2982
4
IN1
IN2
IN3
IN4–IN7
IN8
VS GND
Features
• Output voltage to 50V
• Output current to 500mA
• Transient-protected outputs
• Integral clamp diodes
• TTL, CMOS, or PMOS compatible inputs
Applications
• Relay and solenoid switching
• Stepping motor
• LED and incandescent displays
IN
OUT
VS
GND
1.5k
20k
800Ù
1.8k
Typical MIC2891/2982 Source Driver
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Ordering Information
Part Number
Reference Manufacturing* PbFree Temperature Range Package
MIC2981BN** MIC2981/82BN MIC2981/82YN –40ºC to +85ºC 18-pin DIP
MIC2982BN** MIC2981/82BN MIC2981/82YN –40ºC to +85ºC 18-pin DIP
MIC2981BWM** MIC2981/82BWM MIC2981/82YWM –40ºC to +85ºC 18-pin wide SOP
MIC2982BWM** MIC2981/82BWM MIC2981/82YWM –40ºC to +85ºC 18-pin wide SOP
* Order entry P/N.
**Orders for MIC2981BN or MIC2982BN will be filled with dual-marked MIC2981/82BN.
**Orders for MIC2981YN or MIC2982YN will be filled with dual-marked MIC2981/82YN.
**Orders for MIC2981BWM or MIC2982BWM will be filled with dual-marked MIC2981/82BWM.
**Orders for MIC2981YWM or MIC2982YWM will be filled with dual-marked MIC2981/82YWM.
