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
GNDV
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
IN
OUT
V
S
GND
1.5k
20k
800Ω
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.
MIC2981/2982 Micrel, Inc.
MIC2981/2982 2 June 2005
Pin Configuration
2IN2 OUT217
3IN3 OUT316
4IN4 OUT415
5IN5 OUT514
6IN6 OUT613
7IN7 OUT712
1IN1 OUT118
8IN8 OUT811
9V
S
GND10
18-Pin DIP (N)
18-Pin Wide SOP (WM)
Pin No. Pin No. Pin Name Pin Function
1–8 IN1–IN8 Input 1 through Input 8: Base drive to driver input transistor.
9V
SSupply Input
10 GND Ground
11–18 OUT8–OUT1 Output 8 through Output 1: Emitter of Darlington driver output.
Pin Description
June 2005 3 MIC2981/2982
MIC2981/2982 Micrel, Inc.
Absolute Maximum Ratings
Supply Voltage (VS)...................................................... 50V
Output Voltage (VCE).................................................... 50V
Continuous Output Current (IC)................................ 500mA
Input Voltage (VIN)
MIC2981/82 ............................................................... 30V
Ground Current (IGND) .................................................... 3A
Junction Temperature (TJ)...................................... +150°C
Storage Temperature (TS)....................... –65°C to +150°C
Operating Ratings
Supply Voltage (VS)............................................ 5V to 50V
Ambient Temperature (TA)......................... –40°C to +85°C
Package Thermal Resistance
PDIP θJA .............................................................. 56°C/W
SOP θJA .............................................................. 84°C/W
Electrical Characteristics(Note 3)
VS = 50V, TA = +25°C, unless noted.
Symbol Parameter Condition Min Typ Max Units
ICEX Output Leakage Current VIN = 0.4V, TA = +70°C, Note 1 200 µA
VCE(sus) Output Sustaining Voltage IOUT = 45mA 35 V
VCE(sat) Collector-Emitter Saturation Voltage VIN = 2.4V, IOUT = 100mA 1.7 2.0 V
VIN = 2.4V, IOUT = 225mA 1.8 2.1 V
VIN = 2.4V, IOUT = 350mA 1.9 2.2 V
IIN(on) Input Current MIC2981 VIN = 2.4V 140 200 µA
VIN = 3.85 310 450 µA
MIC2982 VIN = 2.4V 140 200 µA
VIN = 12V 1.25 1.93 mA
IOUT Output Source Current VIN = 2.4V, VCE = 2.2V 350 mA
ISSupply Current VIN = 2.4, OUT1–8 = open, Note 1 10 mA
tON Turn-On Delay 0.5EIN to 0.5EOUT, RL = 100Ω, VS = 35V, 1.0 2.0 µs
tOFF Turn-Off Delay 0.5EIN to 0.5EOUT, RL = 100Ω, VS = 35V, 5.0 10 µs
Note 2
IRClamp Diode Leakage Current VR = 50V, VIN = 0.4V, Note 1 50 µA
VFClamp Diode Forward Voltage IF = 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, Inc.
MIC2981/2982 4 June 2005
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. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 1999 Micrel Incorporated