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MP1521EQ-LF-Z PDF预览

MP1521EQ-LF-Z

更新时间: 2024-02-21 09:11:21
品牌 Logo 应用领域
芯源 - MPS 驱动接口集成电路
页数 文件大小 规格书
8页 182K
描述
LED Driver, 6-Segment, 3 X 3 MM, LEAD FREE, QFN-16

MP1521EQ-LF-Z 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:QFN
包装说明:HVQCCN,针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.08
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:S-XQCC-N16
JESD-609代码:e3长度:3 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:6
端子数量:16最高工作温度:85 °C
最低工作温度:-20 °C封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1 mm
最大供电电压:25 V最小供电电压:2.7 V
标称供电电压:5 V表面贴装:YES
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:NO LEAD端子节距:0.5 mm
端子位置:QUAD处于峰值回流温度下的最长时间:40
宽度:3 mmBase Number Matches:1

MP1521EQ-LF-Z 数据手册

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MP1521  
High Efficiency  
White LED Driver  
Monolithic Power Systems  
General Description  
Features  
The MP1521 is a constant-current Boost  
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On Board Power MOSFET  
Drive 9 White LEDs from 2.7V Input  
Drive 15 White LEDs from 5V Input  
Up to 90% Efficiency  
Over 80mA Output Current Capacity  
Open Load Shutdown  
Low Current Sensing Feedback Voltage  
Up to 3 String Current Sensing Feedback  
Analog and Digital PWM Brightness Control  
UVLO, Thermal Shutdown  
Soft Start  
Internal Current Limit  
Available in Compact MSOP10 and  
Tiny 3 mm x 3 mm QFN16 Package  
Evaluation Boards Available  
Regulator.  
This IC has three individual  
current-sensing feedbacks, which are ideal for  
driving multiple strings of series connected  
LEDs. The OLS pin is designed for detecting  
loose or open LED connections.  
The IC uses a peak current, constant minimum  
off-time architecture. The feedback pins  
measure voltage across sense resistors in  
series with the LED strings. When supplying a  
bias current of 20mA, the voltage drop across  
the sense resistor is only 0.4V to minimize  
power loss. Either a DC voltage or a PWM  
signal at the BRT/PWM input can control the  
LED brightness.  
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Applications  
The MP1521 has an on board power MOSFET  
switch that is protected by current limit, open  
load shutdown, thermal shutdown, and under  
voltage lockout.  
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Handheld Computers, Cell phones, PDAs,  
Digital and Video Cameras, Small LCD  
Displays  
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Li Ion and NiMH Battery Applications  
Ordering Information  
Part Number  
Package  
Temperature  
MP1521EK  
MSOP10  
-20° to +85°C  
MP1521EQ  
EV0005  
QFN16 (3x3)  
-20° to +85°C  
MP1521EK Evaluation Board  
MP1521EQ Evaluation Board  
EV0021  
For Tape & Reel, add suffix –Z (i.e., MP1521EK–Z)  
For Lead Free, add suffix –LF (i.e., MP1521EK–LF–Z)  
Typical Application Circuit (One String of Six (6) LEDs)  
Efficiency vs LED current, 1 string of 6  
Using Toko D62CB 47µH Inductor  
VIN  
L1  
D1  
CIN  
1
2
10  
IN  
SW  
ON  
COUT  
GND  
MP1521  
100  
90  
80  
70  
60  
50  
EN  
9
8
GND  
OLS  
EN  
REF  
OFF  
V = 5V  
IN  
3
4
V = 4V  
IN  
V = 3V  
IN  
BRT/  
PWM  
White LEDs  
FB1  
FB2  
7
6
BRT/PWM  
FB3  
5
5
10  
15  
20  
25  
LED Current (mA)  
MP1521 Rev 2.7 10/06/04  
www.monolithicpower.com  
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