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A8514 PDF预览

A8514

更新时间: 2024-01-22 18:29:09
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器
页数 文件大小 规格书
35页 1288K
描述
The A8514 is a multi-output white LED driver for small-size LCD backlighting.

A8514 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP-20针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.71
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PDSO-G20
JESD-609代码:e3长度:6.5 mm
湿度敏感等级:2复用显示功能:NO
功能数量:1区段数:48
端子数量:20最高工作温度:125 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP20,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:16 V
认证状态:Not Qualified筛选级别:AEC-Q100
座面最大高度:1.2 mm子类别:Display Drivers
最大压摆率:10 mA最大供电电压:40 V
最小供电电压:5 V标称供电电压:16 V
表面贴装:YES温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:40宽度:4.4 mm
最小 fmax:2.5 MHzBase Number Matches:1

A8514 数据手册

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Wide Input Voltage Range, High Efficiency  
Fault Tolerant LED Driver  
A8514  
ELECTRICAL CHARACTERISTICS1,2 (continued) Valid at VIN = 16 V, TA = 25°C, indicates specifications guaranteed by design  
and characterization over the full operating temperature range with TA = TJ = –40°C to 125°C; unless otherwise noted  
Characteristics  
Symbol  
Test Conditions  
Min.  
Typ.  
Max.  
Unit  
GATE Pin  
GATE Pin Sink Current  
IGSINK  
VGS = VIN  
104  
μA  
μs  
Gate Fault Shutdown Greater than  
2X Current2  
tGFAULT2  
3
Gate Fault Shutdown Greater than  
1–2X Current  
fSW  
cycles  
tGFAULT1  
VGS  
10,000  
–6.7  
Gate to source voltage measured when gate  
is on  
Gate Voltage  
V
VSENSE Pin  
VSENSE Pin Sink Current  
IADJ  
18.8  
94  
20.3  
104  
21.8  
114  
μA  
Measured between VIN and VSENSE,  
RADJ = 0 Ω  
VSENSE Trip Point  
VSENSE 2X Trip2  
VSENSEtrip1  
mV  
2X VSENSEtrip , instantaneous shutdown,  
RADJ = 0 Ω  
VSENSEtrip2  
180  
mV  
¯¯¯  
¯
¯¯¯¯¯¯  
FAULT Pin  
¯¯¯¯¯¯¯¯¯  
FAULT Pull-Down Voltage  
VFAULT  
IFAULT = 1 mA  
0.5  
1
V
¯¯¯¯¯¯¯¯¯  
FAULT Pin Leakage Current  
IFAULTLKG VFAULT = 5 V  
μA  
Thermal Protection (TSD)  
Thermal Shutdown Threshold2  
Thermal Shutdown Hysteresis2  
TSD  
Temperature rising  
165  
20  
ºC  
ºC  
TSDHYS  
1For input and output current specifications, negative current is defined as coming out of the node or pin (sourcing); positive current is defined as  
going into the node or pin (sinking).  
2Ensured by design and characterization, not production tested.  
3Minimum VIN = 5 V is only required at startup. After startup is completed, the IC is able to function down to VIN = 4 V.  
Allegro MicroSystems, Inc.  
115 Northeast Cutoff  
7
Worcester, Massachusetts 01615-0036 U.S.A.  
1.508.853.5000; www.allegromicro.com  

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