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MP2481DH-LF PDF预览

MP2481DH-LF

更新时间： 2024-11-11 19:49:03
品牌 Logo 应用领域
芯源 - MPS 驱动光电二极管接口集成电路
页数 文件大小 规格书
12页 422K
描述
LED Driver, 27-Segment, PDSO8, ROHS COMPLIANT, MO-187AA-T, MSOP-8

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MP2481DH-LF 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：HTSSOP, TSSOP8,.19针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.67
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：2复用显示功能：NO
功能数量：1区段数：27
端子数量：8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：TSSOP8,.19
封装形状：SQUARE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：12 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Display Drivers最大供电电压：36 V
最小供电电压：4.5 V标称供电电压：12 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：3 mm
Base Number Matches：1

MP2481DH-LF 数据手册

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MP2481  
36V, 1.2A, 1.4MHz  
White LED Driver  
The Future of Analog IC Technology  
DESCRIPTION  
FEATURES  
The MP2481 is a 36V, 1.2A, white LED driver  
suitable for either step-down or inverting  
step-up/down applications. It achieves 1.2A  
peak output current over a wide input supply  
range with excellent load and line regulation.  
Current mode operation provides fast transient  
response and eases loop stabilization. Fault  
condition protection includes thermal shutdown,  
cycle-by-cycle peak current limiting, input over  
voltage protection, open strings protection and  
output short circuit protection.  
•
•
1.2A Maximum Output Current  
Unique Step-up/down Operation (Buck-  
Boost Mode)  
•
Wide 4.5V to 36V Operating Input Range for  
Step-Down Applications (Buck Mode)  
0.30Ω Internal Power MOSFET Switch  
Fixed 1.4MHz Frequency  
Analog and PWM Dimming  
0.2V Reference Voltage  
Up to 95% Efficiency  
5μA Shutdown Mode  
No minimum LED required  
Stable with Low ESR Output Ceramic  
Capacitors  
•
•
•
•
•
•
•
•
The MP2481 incorporates both DC and PWM  
dimming onto a single control pin. The separate  
input reference ground pin allows for direct  
enable and/or dimming control for a positive to  
negative power conversion.  
The MP2481 requires a minimum number of  
readily available standard external components  
and is available in 8-pin MSOP8E package.  
•
•
•
•
•
•
Cycle-by-Cycle Over Current Protection  
Thermal Shutdown Protection  
Open Strings Protection  
Input Over Voltage Protection  
Output Short Circuit Protection  
Available in 8-Pin MSOP8E Package  
EVALUATION BOARD REFERENCE  
Board Number  
Mode  
APPLICATIONS  
•
•
•
•
•
•
General LED Illuminations  
LCD Backlight Panels  
Handheld Computers  
Automotive Internal Lighting  
Portable Multimedia Players  
Portable GPS Devices  
EV2481-H-00A  
Step-down  
EV2481-H-01A  
Step-up/down  
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green  
status, please visit MPS website under Quality Assurance. “MPS” and “The  
Future of Analog IC Technology” are Trademarks of Monolithic Power  
Systems, Inc.  
TYPICAL APPLICATION (STEP-UP/DOWN APPLICATION)  
Efficiency vs.  
Input Voltage  
Step-up/down  
Application  
3
4.5V-36V  
VIN  
1
7
8
90  
85  
80  
75  
70  
65  
60  
VDD  
OVP  
BST  
Cbs  
C1  
3 series, 9 paralleled  
L1  
SW  
4 series,400mA  
3 series,400mA  
MP2481  
C2  
R1  
D1  
3 series,9 paralleded,180mA total  
5
6
EN/DIM  
ON OFF  
DC or PWM INPUT  
R2  
INGND  
4
FB  
VSS  
0
5
10  
15 20 25 30  
2
Rs  
INPUT VOLTAGE (V)  
MP2481 Rev. 1.42  
4/28/2012  
www.MonolithicPower.com  
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.  
© 2012 MPS. All Rights Reserved.  
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