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| 型号： | A8502KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/35页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHITE MULTI 16-TSSOP |
| 标准包装： | 8,000 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 2 |
| 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： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 125°C |
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A8502
Wide Input Voltage Range, High Efficiency
Fault Tolerant LED Driver
Description (continued)
The A8502 is provided in a 16-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*
A8502KLPTR-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
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
2
3
8
11
11
11
13
13
14
15
15
16
18
LED short detect
Overvoltage protection
Boost switch overcurrent protection
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
Allegro MicroSystems, LLC
115 Northeast Cutoff
18
18
21
22
23
23
23
24
24
26
26
30
34
2
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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相关代理商/技术参数 |
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| A8503 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:High Efficiency 6-Channel, 2 MHz, WLED/RGB Driver |
| A8503EECTR-T | 功能描述:IC LED DRVR WHT/RGB BCKLGT 26QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:1 系列:- 恒定电流:- 恒定电压:- 拓扑:PWM，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:642kHz 电源电压:2.7 V ~ 5.5 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-VFDFN 裸露焊盘 供应商设备封装:10-VSON 包装:剪切带 (CT) 工作温度:-30°C ~ 85°C 产品目录页面:1371 (CN2011-ZH PDF) 其它名称:BD1603NUV-E2CT |
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| A8504910100N | 功能描述:环形MIL规格后盖 Backshell, Envrn, EMI/RFI, Strt, Nickel, Size 48 RoHS:否 制造商:Amphenol PCD MIL 类型:MIL-DTL-38999 III, IV 系列:AS85049 产品类型:Environmental EMI/RFI Backshells 外壳类型:Straight 外壳大小:18 外壳材质:Aluminum Alloy |
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