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A8514KLPTR-T PDF预览

A8514KLPTR-T

更新时间: 2024-01-21 10:28:52
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.

A8514KLPTR-T 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

A8514KLPTR-T 数据手册

 浏览型号A8514KLPTR-T的Datasheet PDF文件第3页浏览型号A8514KLPTR-T的Datasheet PDF文件第4页浏览型号A8514KLPTR-T的Datasheet PDF文件第5页浏览型号A8514KLPTR-T的Datasheet PDF文件第7页浏览型号A8514KLPTR-T的Datasheet PDF文件第8页浏览型号A8514KLPTR-T的Datasheet PDF文件第9页 
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  
Oscillator Frequency  
Symbol  
Test Conditions  
Min.  
Typ.  
Max.  
Unit  
RFSET = 10 kΩ  
1.8  
2
2.2  
MHz  
Oscillator Frequency  
fSW  
RFSET = 20 kΩ  
RFSET = 35.6 kΩ  
RFSET = 10 kΩ  
0.9  
520  
1
580  
1.00  
1.1  
640  
MHz  
kHz  
V
FSET/SYNC Pin Voltage  
FSET Frequency Range  
Synchronization  
VFSET  
fFSET  
580  
2500  
kHz  
Synchronized PWM Frequency  
fSWSYNC  
580  
150  
2300  
kHz  
ns  
Synchronization Input  
Minimum Off-Time  
tPWSYNCOFF  
Synchronization Input  
Minimum On-Time  
tPWSYNCON  
150  
ns  
VSYNC(H) FSET/SYNC pin, high level  
VSYNC(L) FSET/SYNC pin, low level  
0.4  
V
V
SYNC Input Logic Voltage  
2.0  
LED Current Sinks  
LEDx Accuracy  
ErrLED  
ΔLEDx  
VLED  
ISET = 120 μA  
ISET = 120 μA  
3
3
%
%
LEDx Matching  
LEDx Regulation Voltage  
VLED1=VLED2=VLED3 =VLED4, ISET = 120 μA  
ISET = 120 μA  
600  
633  
0.988  
20  
700  
653  
1.003  
800  
672  
1.018  
120  
mV  
A/A  
V
I
SET to ILEDx Current Gain  
AISET  
VISET  
ISET  
ISET Pin Voltage  
Allowable ISET Current  
μA  
While LED sinks are in regulation, sensed  
from LEDx pin to ground  
V
LED Short Detect  
VLEDSC  
ILEDSS  
4.6  
5.1  
2.0  
5.6  
V
Current through each enabled LEDx pin  
during soft start  
Soft Start LEDx Current  
mA  
Measured while PWM/EN = low, during  
dimming control and internal references  
are powered-on (exceeding tPWML results in  
shutdown)  
Maximum PWM Dimming  
Until Off-Time2  
fSW  
cycles  
tPWML  
32,750  
Minimum PWM On-Time  
tPWMH  
First cycle when powering-up device  
0.75  
0.5  
2
1
μs  
μs  
Time between PWM enable and LED current  
reaching 90% of maximum  
PWM High to LED-On Delay  
tdPWM(on)  
Time between PWM enable going low and  
LED current reaching 10% of maximum  
PWM Low to LED-Off Delay  
tdPWM(off)  
360  
500  
ns  
Continued on the next page…  
Allegro MicroSystems, Inc.  
115 Northeast Cutoff  
6
Worcester, Massachusetts 01615-0036 U.S.A.  
1.508.853.5000; www.allegromicro.com  

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