Datasheet > 2998

2998

更新时间： 2024-11-17 22:35:47

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器
页数	文件大小	规格书
6页	165K
描述
DUAL FULL-BRIDGE MOTOR DRIVER

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2998 数据手册

2998

DUAL FULL-BRIDGE

MOTOR DRIVER

As an interface between low-level logic and solenoids, dc (brush)

motors, or stepper motors, the UDN2998W dual full-bridge driver will

operate inductive loads up to 50 V with continuous output currents of

up to 2 A per bridge or peak (start-up) currents to 3 A. The control

inputs are compatible with TTL, DTL, and 5 V CMOS logic. Except

for a common supply voltage and thermal shutdown, the two drivers in

each package are completely independent.

For external PWM control, an Output Enable for each bridge

circuit is provided and the sink driver emitters are pinned out for

connection to external current-sensing resistors. The chopper drive

mode is characterized by low power dissipation levels and maximum

efficiency. A PHASE input to each bridge determines load-current

direction.

Extensive circuit protection is provided on-chip. Both ground-

clamp and flyback diodes for each bridge are provided. A thermal

shutdown circuit disables the load drive if chip temperature rating

(package power dissipation) is exceeded. Internally-generated delays

provide crossover-current protection.

Dwg. No. W-106

The UDN2998W is packaged in a 12-pin single in-line power-tab

package for high power capabilities. Driving either of the bridges at

the full 2 A dc rating requires the use of an external heat sink. The tab

is at ground potential and needs no insulation.

ABSOLUTE MAXIMUM RATINGS

at T_J≤ +150°C

Supply Voltage, V_BB.......................... 50 V

Output Current, I_OUT(continuous) ..... 2 A

(peak)........................................... 3 A

Sink Driver Emitter Voltage, V_E...... 1.5 V

Logic Input Voltage Range,

FEATURES

3 A Peak Output Current

Output Voltage to 50 V

Integral Output Suppression Diodes

Output Current Sensing

TTL/CMOS Compatible Inputs

Internal Thermal Shutdown Circuitry

Crossover-Current Protected

Automotive Capable

V_PHASEor V_ENABLE....... -0.3 V to 15 V

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

NOTE: Output current rating may be limited

by chopping frequency, ambient tempera-

ture, air flow, or heat sinking. Under any set

of conditions, do not exceed the specified

current rating or a junction temperature of

+150°C.

Always order by complete part number: UDN2998W .

12 3 4 5 6

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2998 替代型号

型号	品牌	替代类型	描述	数据表
6MBP50TEA120	FUJI	功能相似	Econo IPM series 1200V / 50A 6 in one-package
6MBP25RJ120	FUJI	功能相似	1200V / 25A 6 in one-package
UDN2998W	ALLEGRO	功能相似	DUAL FULL-BRIDGE MOTOR DRIVER

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2998-5022-94	ETC	获取价格	OSMP Microminiature Push-On Coaxial Connectors

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