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參數(shù)資料
| 型號： | 2985 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | 8-CHANNEL SOURCE DRIVER |
| 中文描述： | 8通道源驅動 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 145K |
| 代理商： | 2985 |
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V
S
GND
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8-CHANNEL SOURCE DRIVER
Recommended for applications requiring separate logic and load grounds,
load supply voltages to 30 V, and load currents to 250 mA, the UDN2985A
source driver is used as an interface between standard low-power digital logic
and LEDs, relays, and solenoids. The outputs feature saturated transistors for
low collector-emitter saturation voltages.
The UDN2985A driver is for use with 5 V logic systems: TTL, Schottky
TTL, DTL, and CMOS. This device has a minimum output breakdown rating
of 30 V with a minimum output sustaining voltage of 15 V. The output is
switched on by an active-high input level.
Under normal operating conditions, this device can source up to 120 mA
for each of the eight outputs at an ambient temperature of 75
°
C and a supply
voltage of 15 V. It incorporates input current-limiting resistors and output
transient-suppression diodes.
The UDN2985A source driver is supplied in an 18-pin dual in-line
package. All inputs are on one side of the package, output pins on the other,
to simplify printed wiring board layout.
Always order by complete part number:
UDN2985A
.
Dwg. No. DS-1013
FEATURES
I
TTL, DTL, or CMOS Compatible Inputs
I
250 mA Output Source Current Capability
I
Output Transient-Suppression Diodes
I
30 V Minimum Output Breakdown Voltage
I
Low Output-Saturation Voltage
PARTIAL SCHEMATIC DIAGRAM
1 of 8 DRIVERS
D
2
Dwg. No. A-10,243
2985
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
°
C
Driver Supply Voltage, V
S
..................
30 V
Continuous Output Current,
I
OUT
........................................
-250 mA
Input Voltage, V
IN
...............................
20 V
Package Power Dissipation,
P
D
..............................................
2.2 W*
Operating Temperature Range,
T
A
...............................
-20
°
C to +85
°
C
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
*Derate at the rate of 18 mW/
°
C above
T
A
= 25
°
C.
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