- 您现在的位置：买卖IC网 > Datasheet目录307 > A8514KLPTR-T (Allegro Microsystems Inc)IC LED DVR WHT 4X80MA 16-ETSSOP Datasheet资料下载
参数资料
| 型号： | A8514KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/42页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHT 4X80MA 16-ETSSOP |
| 标准包装： | 8,000 |
| 拓扑： | PWM，SEPIC，升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 车载，背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 580kHz ~ 2MHz |
| 电源电压： | 5 V ~ 40 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
第1页当前第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页
A8514
Wide Input Voltage Range, High Efficiency
Fault Tolerant LED Driver
Description (continued)
The A8514 is provided in a 20-pin TSSOP package (suffix LP) with
an exposed pad for enhanced thermal dissipation. It is lead (Pb) free,
with 100% matte tin lead frame plating.
Selection Guide
Part Number
Packing*
A8514KLPTR-T 4000 pieces per 13-in. reel
*Contact Allegro ? for additional packing options
Absolute Maximum Ratings*
Characteristic
LEDx Pins
OVP Pin
VIN, VSENSE, GATE Pins
SW Pin
ˉFˉ ˉA ˉ ˉUˉˉLˉ ˉTˉ Pin
ISET, FSET, APWM, COMP Pins
All Other Pins
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
T A
T J (max)
T stg
Notes
VSENSE and GATE pins should not exceed V IN
by more than 0.4 V
Continuous
t < 50 ns
Range K
Rating
–0.3 to 55
–0.3 to 60
–0.3 to 40
–0.6 to 62
–1.0
-0.3 to 40
–0.3 to 5.5
–0.3 to 7
–40 to 125
150
–55 to 150
Unit
V
V
V
V
V
V
V
V
oC
oC
oC
*Stresses beyond those listed in this table may cause permanent damage to the device. The Absolute Maximum ratings are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the Electrical
Characteristics table is not implied. Exposure to Absolute Maximum-rated conditions for extended periods may affect device reliability.
Table of Contents
Specifications
Thermal Characteristics
Pin-out Diagram and Terminal List
Characteristic Performance
Functional Description
Enabling the IC
Powering up: LED pin short-to-ground check
Soft start function
Frequency selection
Sync
LED current setting and LED dimming
PWM dimming
APWM pin
Analog dimming
LED short detect
Overvoltage protection
Boost switch overcurrent protection
2
3
3
8
11
11
11
13
13
14
15
15
16
18
18
19
21
Input overcurrent protection and disconnect switch
Setting the current sense resistor
Input UVLO
VDD
Shutdown
Fault protection during operation
Application Information
Design Example for Boost Configuration
Design Example for SEPIC Configuration
Package Outline Drawing
Appendix A. Feedback Loop Calculations
Power Stage Transfer Function
Output to Control Transfer Function
Stabilizing the Closed Loop System
Measuring the Feedback Loop Gain and Phase Margin
Allegro MicroSystems, LLC
115 Northeast Cutoff
22
23
23
23
23
24
26
26
30
34
A-1
A-1
A-2
A-4
A-6
2
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
相关PDF资料 |
PDF描述 |
|---|---|
| A8515GLPTR-T | IC LED DVR WHT/RGB BKLGT 16TSSOP |
| A8516ELPTR-T | IC LED DVR BACKLIGHT MON 24TSSOP |
| A8740EEETR-T | IC PHOTOFLASH CAP CHARGER 8DFN |
| AC162049-2 | MOD PROGR UNIV MPLAB ICD2 ICD3 |
| AC162049 | MODULE SOCKET FOR ICD2 DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| A8515 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A8515 is a multi-output white LED (WLED) driver for LCD backlighting in consumer and industrial displays. |
| A8515GLPTR-T | 功能描述:IC LED DVR WHT/RGB BKLGT 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C |
| A8516 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A8516 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions. |
| A85169-000 | 制造商:TE Connectivity 功能描述:MPCB-20.0-0-E563 - Cable Rools/Shrink Tubing |
| A8516ELBTR-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A8516 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions. |
发布紧急采购，3分钟左右您将得到回复。