November 1999
1
MIC2981/2982
MIC2981/2982
Micrel
MIC2981/2982
High-Voltage High-Current Source Driver Array
Final 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'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 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.
Functional Diagrams
OUT1
OUT2
OUT3
OUT4OUT7
OUT8
MIC2981
MIC2982
4
IN1
IN2
IN3
IN4IN7
IN8
GND
V
S
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
Ordering Information
Part Number
Temperature Range
Package
MIC2981BN/
MIC2982BN*
40
C to +85
C
18-pin DIP
MIC2981BWM/
MIC2982BWM*
40
C to +85
C
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.
IN
OUT
V
S
GND
1.5k
20k
800
1.8k
Typical MIC2891/2982 Source Driver
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
MIC2981/2982
Micrel
MIC2981/2982
2
November 1999
Pin Configuration
2
IN2
OUT2
17
3
IN3
OUT3
16
4
IN4
OUT4
15
5
IN5
OUT5
14
6
IN6
OUT6
13
7
IN7
OUT7
12
1
IN1
OUT1
18
8
IN8
OUT8
11
9
V
S
GND
10
18-Pin DIP (N)
18-Pin Wide SOP (WM)
Pin No.
Pin No.
Pin Name
Pin Function
18
IN1IN8
Input 1 through Input 8: Base drive to driver input transistor.
9
V
S
Supply Input
10
GND
Ground
1118
OUT8OUT1
Output 8 through Output 1: Emitter of Darlington driver output.
Pin Description
November 1999
3
MIC2981/2982
MIC2981/2982
Micrel
Absolute Maximum Ratings
Supply Voltage (V
S
) ...................................................... 50V
Output Voltage (V
CE
) .................................................... 50V
Continuous Output Current (I
C
) ................................ 500mA
Input Voltage (V
IN
)
MIC2981/82 ............................................................... 30V
Ground Current (I
GND
) .................................................... 3A
Junction Temperature (T
J
) ...................................... +150
C
Storage Temperature (T
S
) ....................... 65
C to +150
C
Operating Ratings
Supply Voltage (V
S
) ............................................ 5V to 50V
Ambient Temperature (T
A
) ......................... 40
C to +85
C
Package Thermal Resistance
PDIP
JA
.............................................................. 56
C/W
SOP
JA
.............................................................. 84
C/W
Electrical Characteristics
(Note 3)
V
S
= 50V, T
A
= +25
C, unless noted.
Symbol
Parameter
Condition
Min
Typ
Max
Units
I
CEX
Output Leakage Current
V
IN
= 0.4V, T
A
= +70
C, Note 1
200
A
V
CE(sus)
Output Sustaining Voltage
I
OUT
= 45mA
35
V
V
CE(sat)
Collector-Emitter Saturation Voltage
V
IN
= 2.4V, I
OUT
= 100mA
1.7
2.0
V
V
IN
= 2.4V, I
OUT
= 225mA
1.8
2.1
V
V
IN
= 2.4V, I
OUT
= 350mA
1.9
2.2
V
I
IN(on)
Input Current
MIC2981
V
IN
= 2.4V
140
200
A
V
IN
= 3.85
310
450
A
MIC2982
V
IN
= 2.4V
140
200
A
V
IN
= 12V
1.25
1.93
mA
I
OUT
Output Source Current
V
IN
= 2.4V, V
CE
= 2.2V
350
mA
I
S
Supply Current
V
IN
= 2.4, OUT18 = open, Note 1
10
mA
t
ON
Turn-On Delay
0.5E
IN
to 0.5E
OUT
, R
L
= 100
, V
S
= 35V,
1.0
2.0
s
t
OFF
Turn-Off Delay
0.5E
IN
to 0.5E
OUT
, R
L
= 100
, V
S
= 35V,
5.0
10
s
Note 2
I
R
Clamp Diode Leakage Current
V
R
= 50V, V
IN
= 0.4V, Note 1
50
A
V
F
Clamp Diode Forward Voltage
I
F
= 350mA
1.5
2.0
V
General Note: Devices are ESD protected; however, handling precautions are recommended.
Note 1:
Applied to all 8 inputs simultaneously.
Note 2:
Load conditions affect turnoff delay.
Note 3:
Specification for packaged product only.
MIC2981/2982
Micrel
MIC2981/2982
4
November 1999
Package Information
0.020
(0.508)
0.018
0.003
(0.457
0.076)
PIN 1
0.920
(23.370)
.250
0.005
(6.350
0.127)
0.060
0.005
(1.524
0.127)
0.100
0.010
(2.540
0.254)
MAX
0.125
(3.175)
MIN
0.020
(0.508)
MIN
0.130
0.005
(3.302
0.127)
+0.025
0.015
+0.635
0.381
0.325
8.255
(
)
0
-10
0.290-0.320
(7.336-8.128)
0.040
(1.016)
TYP
0.030-0.110
(0.762-2.794)
RAD
18-Pin Plastic DIP (N)
0.022 (0.559)
0.018 (0.457)
5
TYP
0.408 (10.363)
0.404 (10.262)
0.459 (11.659)
0.455 (11.557)
0.103 (2.616)
0.099 (2.515)
SEATING
PLANE
0.027 (0.686)
0.031 (0.787)
0.016 (0.046)
TYP
0.301 (7.645)
0.297 (7.544)
0.094 (2.388)
0.090 (2.286)
0.297 (7.544)
0.293 (7.442)
10
TYP
0.032 (0.813) TYP
0.330 (8.382)
0.326 (8.280)
7
TYP
0.050 (1.270)
TYP
0.015
(0.381)
R
0.015
(0.381)
MIN
PIN 1
DIMENSIONS:
INCHES (MM)
18-Pin Wide SOP (WM)
MICREL INC.
1849 FORTUNE DRIVE
SAN JOSE, CA 95131
USA
TEL
+ 1 (408) 944-0800
FAX
+ 1 (408) 944-0970
WEB
http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
1999 Micrel Incorporated
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