Datasheet > UDN2987X-6

UDN2987X-6

更新时间： 2024-11-18 03:11:07

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器过电流保护
页数	文件大小	规格书
9页	656K
描述
DABIC-5 8-Channel Source Driver with Overcurrent Protection

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中文翻译

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UDN2987X-6 数据手册

UDN2987x-6

DABIC-5 8-Channel Source Driver

with Overcurrent Protection

Package A, 20-pin DIP

Package LW, 20-pin SOIC-W

Features

Providing overcurrent protection for each of its eight

sourcing outputs, the UDN2987A-6 and UDN2987LW-6

drivers are used as an interface between standard low-level logic

and relays, motors, solenoids, LEDs, and incandescent lamps.

These devices include thermal shut down and output transient

protection/clamp diodes for use with sustaining

voltages to 35 V.

Approximate Scale 1:1

In these drivers, each channel includes a latch to turn off

that channel if the maximum channel current is exceeded. All

channels are disabled if the thermal shutdown is activated. A

common FAULT output is used to indicate either chip thermal

shutdown or any overcurrent condition. All outputs are enabled

ꢀ4.75 to 35 V driver supply voltage

ꢀOutput enable-disable (OE/R)

ꢀ350 mA output source current

ꢀOvercurrent protected

ꢀInternal ground clamp diodes

by pulling the common OE/R input high. When OE/R is low,

all outputs are inhibited and the eight latches are reset. The

OE/R function can be especially important during power-up, in

ꢀOutput Breakdown Voltage 35 V minimum

ꢀTTL, DTL, PMOS, or CMOS compatible inputs

ꢀInternal Thermal Shut Down (TSD)

preventing floating inputs from turning on the outputs.

Under normal operating conditions, each of eight outputs

will source in excess of 100 mA continuously at an ambient

temperature of 25°C and a supply of 35 V. The over-current

fault circuit will protect the device from short-circuits to ground

with supply voltages of up to 30 V.

Applications

ꢀRelays

ꢀMotors

ꢀSolenoids

ꢀLEDs

The inputs are compatible with 5 and 12 V logic systems:

TTL, Schottky TTL, DTL, PMOS, and CMOS. In all cases, the

output is switched ON by an active high input level. Compared

to their predecessor devices, the UDN2987A and UDN2987LW,

the UDN2987A-6 and UDN2987LW-6 have a significantly

faster T_PHL(200 ns typical) and a lower driver supply voltage

rating (4.75 V), which allows the use of 5 V logic.

ꢀIncandescent lamps

Typical Application

IN1

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

GND

IN2

IN3

The UDN2987A-6 is supplied in a 20-pin dual in-line plastic

(DIP) package; the UDN2987LW-6 is supplied in a 20-lead

small-outline (SOIC-W) plastic package. The Pb (lead) free

versions have 100% matte-tin leadframe plating.

IN4

1 to 8 Load

Components

2987

CPU

IN5

IN6

IN7

IN8

FAULT

OE/R

4.75 to 35 V

29876DS

12 3 4 5 6 7...9

中文翻译

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与UDN2987X-6相关器件

型号	品牌	获取价格	描述	数据表
UDN2987X-6_12	ALLEGRO	获取价格	Providing overcurrent protection for each of its eight sourcing outputs, the UDN2987LW-6 d
UDN2993	ALLEGRO	获取价格	DUAL H-BRIDGE MOTOR DRIVERS
UDN2993B	ALLEGRO	获取价格	DUAL H-BRIDGE MOTOR DRIVERS
UDN-2993B	ETC	获取价格	DC Motor Controller/Driver
UDN2993LB	ALLEGRO	获取价格	DUAL H-BRIDGE MOTOR DRIVERS
UDN-2993LB	ETC	获取价格	PIN Diode Driver
UDN2998	ALLEGRO	获取价格	DUAL FULL-BRIDGE MOTOR DRIVER
UDN2998B	ALLEGRO	获取价格	Brush DC Motor Controller, 3A, PSFM12, SIP-12
UDN2998W	ALLEGRO	获取价格	DUAL FULL-BRIDGE MOTOR DRIVER
UDN-2998W	ETC	获取价格	DC Motor Controller/Driver

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