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參數(shù)資料
| 型號(hào)： | 2943 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER |
| 中文描述： | 大電流半橋電機(jī)驅(qū)動(dòng) |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 97K |
| 代理商： | 2943 |
2943
HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER
DISCONTINUED
PRODUCT
—FORREFERENCE
I
Saturated Output Drivers
I
Logic-Compatible Inputs
I
Output-Transient Protection
I
Tri-State Output
*Internal high-voltage shutdown above 24 V.
A
ease of installation. The heat-sink tab is at ground potential and does
not require insulation.
Designed for use as a general-purpose motor driver, the
UDN2943Z half-bridge driver combines high-current sink and source
drivers with logic stages, level shifting, diode transient protection, and
a voltage regulator for single-supply operation. Capable of operating
in extremely harsh environments, this device can withstand high
transient voltages without damage. The driver can be used in pairs for
full-bridge operation, or as triplets in three-phase brushless dc motor-
drive applications.
The input circuitry is compatible with TTL, low-voltage CMOS,
and NMOS logic. Logic lockout prevents both source and sink drivers
from turning ON simultaneously. Each driver is turned ON by an active-
low input, making the UDN2943Z especially desirable in many micro-
processor applications. An accidental input open circuit will turn OFF
the corresponding output. The device also provides an internally-
generated dead time to prevent crossover currents during output
switching. Monolithic, space-saving construction offers reliability
unobtainable with discrete components.
Saturated output drivers provide for low saturation voltage at the
maximum rated current. Internal short-circuit protection, activated at
load currents above 1 A, protects the source driver from accidental
short-circuits between the output and ground.
The UDN2943Z driver is rated for continuous operation with
inductive loads at supply voltages of up to 24 V. With supply voltage
transients (to 35 V maximum), a high-voltage protection circuit
becomes operative, shutting OFF both output drivers. The internal
thermal shutdown is triggered by a nominal junction temperature
Single-chip construction and a 5-lead power-tab TS-001 plastic
package provide cost-effective and reliable systems designs.
It also features excellent power dissipation ratings, minimum size, and
FEATURES
I
±
1 A Output Current
I
8.5 V to 24 V Operating Range
I
Crossover-Current Protected
I
Withstands 35 V Supply Transients
I
Internal Over-Voltage Protection
I
Internal Short-Circuit Protection
HIGH-CURRENT
HALF-BRIDGE MOTOR DRIVER
2943
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, Range V
S
....
8.5 V to 35 V*
Output Voltage, V
CE(sus)
.......................
24 V
Input Voltage Range, V
IN
....
-0.3 V to +18 V
Continuous Output Current, I
OUT
......
±
1.0 A
Package Power Dissipation,
P
D
.......................................
See Graph
Operating Temperature Range,
T
A
.................................
-20
°
C to +85
°
C
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
Always order by complete part number:
UDQ2943Z
.
TM
McroSystems, Inc.
D
2
1
2
3
4
5
O
S
G
S
Dwg. PP-022-1
+
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 2944 | QUAD HIGH-CURRENT, HIGH-VOLTAGE SOURCE DRIVER |
| 2951-2001 | Interface IC |
| 2951-2002 | 5-Pin, Multiple-Input, Programmable Reset ICs |
| 2951-2003 | Interface IC |
| 2953 | FULL-BRIDGE PWM MOTOR DRIVERS |
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