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A2557KLB PDF预览

A2557KLB

更新时间: 2024-02-02 10:57:22
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器
页数 文件大小 规格书
12页 177K
描述
PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE

A2557KLB 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:SOIC包装说明:LEAD FREE, MS-013AA, SOIC-16
针数:16Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.82Is Samacsys:N
内置保护:TRANSIENT; OVER CURRENT; THERMAL驱动器位数:4
接口集成电路类型:AND GATE BASED PERIPHERAL DRIVERJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:10.3 mm
湿度敏感等级:3功能数量:4
端子数量:16最高工作温度:85 °C
最低工作温度:-20 °C输出电流流向:SINK
最大输出电流:0.3 A标称输出峰值电流:0.5 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:2.65 mm子类别:Peripheral Drivers
最大供电电压:5.25 V最小供电电压:4.75 V
标称供电电压:5 V表面贴装:YES
技术:BIPOLAR温度等级:OTHER
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40断开时间:10 µs
接通时间:10 µs宽度:7.5 mm
Base Number Matches:1

A2557KLB 数据手册

 浏览型号A2557KLB的Datasheet PDF文件第2页浏览型号A2557KLB的Datasheet PDF文件第3页浏览型号A2557KLB的Datasheet PDF文件第4页浏览型号A2557KLB的Datasheet PDF文件第5页浏览型号A2557KLB的Datasheet PDF文件第6页浏览型号A2557KLB的Datasheet PDF文件第7页 
2557  
PROTECTED QUAD LOW-SIDE DRIVER  
WITH FAULT DETECTION & SLEEP MODE  
The A2557xB, A2557xEB, and A2557xLB have been specifically  
designed to provide cost-effective solutions to relay-driving applications with  
up to 300 mA drive current per channel. They may also be used for driving  
incandescent lamps in applications where turn-on time is not a concern. Each  
of the four outputs will sink 300 mA in the on state. The outputs have a  
minimum breakdown voltage of 60 V and a sustaining voltage of 40 V. A  
low-power Sleep Mode is activated with either ENABLE low or all inputs  
low. In this mode, the supply current drops to below 100 µA.  
Over-current protection for each channel has been designed into these  
devices and is activated at a nominal 500 mA. It protects each output from  
short circuits with supply voltages up to 32 V. When an output experiences a  
short circuit, the output current is limited at the 500 mA current clamp. In  
addition, foldback circuitry decreases the current limit if an excessive voltage  
is present across the output and assists in keeping the device within its SOA  
(safe operating area). An exclusive-OR circuit compares the input and output  
state of each driver. If either a short or open load condition is detected, a  
single FAULT output is turned on (active low). Similar devices, for operation  
to 1.3 A, are available as the UDx2547B/EB.  
A2557xLB  
1
2
3
4
16  
IN  
IN  
OUT  
1
2
1
15  
14  
K
ENABLE  
GROUND  
GROUND  
OUT  
2
13  
12  
11  
10  
9
GROUND  
5
6
GROUND  
OUT  
3
V
CC  
7
8
FAULT  
OUT  
IN  
IN  
3
4
4
Continuous or multiple overload conditions causing the channel tempera-  
ture to reach approximately 165°C will result in an additional linear decrease  
in the output current of the affected driver. If the fault condition is corrected,  
the output stage will return to its normal saturated condition.  
Dwg. PP-017-4  
Note that the A2557xB (DIP) and the A2557xLB  
(SOIC) are electrically identical and share a  
common terminal number assignment.  
The first character of the part number suffix determines the device  
operating temperature range. Suffix ‘S-’ is the standard -20°C to +85°C;  
suffix ‘E-’ is -40°C to +85°C; suffix ‘K-’ is for the industrial temperature  
range of -40°C to +125°C. Package suffix ‘-B’ devices are 16-pin power  
DIPs; suffix ‘-EB’ devices are 28-lead power PLCCs; and suffix ‘-LB’ are 16-  
lead power wide-body SOICs for surface-mount applications. All packages  
are of batwing construction to provide for maximum package power dissipa-  
tion.  
ABSOLUTE MAXIMUM RATINGS  
Output Voltage, VO .............................. 60 V  
Over-Current Protected Output Voltage,  
VO ..................................................... 32 V  
Output Current, IO ......................... 500 mA*  
FAULT Output Voltage, VFLT ............. 60 V  
Logic Supply Voltage, VCC ................. 7.0 V  
Input Voltage, VI or VOE ..................... 7.0 V  
Package Power Dissipation,  
PD ........................................... See Graph  
Operating Temperature Range, TA  
Suffix ‘S-’ ...................... -20°C to +85°C  
Suffix ‘E-’ ...................... -40°C to +85°C  
Suffix ‘K-’ ................... -40°C to +125°C  
Junction Temperature,  
FEATURES  
I 300 mA Output Current per Channel  
I Independent Over-Current Protection &Thermal Limiting for Each Driver  
I Output Voltage to 60 V  
I Output SOA Protection  
I Fault-Detection Circuitry for Open or Shorted Load  
I Low Quiescent Current Sleep Mode  
I Integral Output Flyback/Clamp Diodes  
I TTL- and 5 V CMOS-Compatible Inputs  
TJ ............................................... +150°C*  
Storage Temperature Range,  
TS ................................. -55°C to +150°C  
*Outputs are current limited at approximately  
500 mA per driver and junction temperature  
limited if higher current is attempted.  
Complete part number includes a suffix to identify operating temperature  
range (E-, K-, or S-) and package type (-B, -EB, or -LB). Always order by  
complete part number, e.g., A2557KLB .  

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