参数资料
型号: A6210GEUTR-T
厂商: Allegro Microsystems Inc
文件页数: 10/12页
文件大小: 0K
描述: IC LED DRIVER HIGH BRIGHT 16-QFN
特色产品: A6210 Buck-Regulating LED Driver
标准包装: 1
拓扑: PWM,降压(降压),切换式电容器(充电泵)
输出数: 1
内部驱动器:
类型 - 主要: 通用
类型 - 次要: 高亮度 LED(HBLED)
频率: 2MHz
电源电压: 9 V ~ 46 V
输出电压: 46V
安装类型: 表面贴装
封装/外壳: 16-WSQFN 裸露焊盘
供应商设备封装: 16-QFN-EP(4x4)
包装: 标准包装
工作温度: -40°C ~ 105°C
产品目录页面: 1141 (CN2011-ZH PDF)
其它名称: 620-1281-6
A6210
3 A, 2 MHz Buck-Regulating LED Driver
Application Circuit 2
V IN
24 V
C1
1.0 μ F
VIN
BOOT
LX
C2
22 nF
L 1
22 μ H
Suggested Parts
R1
310 k Ω
A 6210
D1
LED
Assembly
Name
C1
Description
1 μ F, 25V, X5R or X7R ceramic, 1210
Manufacturer - Part Number
Taiyo Yuden, TDK
TON
ISEN
C2
22 nF, 50V, X5R or X7R ceramic, 0805
PWM or Switch
DIS
SGND
R2
150 m Ω
R4
180 m Ω
D1
L1
R1
R2
3 A, 60 V, Schottky diode
22 μ H, 2.8 A inductor
310 k Ω , 1%, 0603
150 m Ω , 1%, 0805
Coilcraft - MSS1048-223ML
R4
180 m Ω , 1%, 0805
NC
GND
Average LED current = 2.4 A
Peak to peak current = 260 mA
LED Assembly voltage = 15 V
Switching frequency = 1.0 MHz
Efficiency = 94%
Channel 1 – Current through inductor and LED Assembly, Channel 2 – Main switching voltage (LX node)
Plot 1. Average current = 2.4 A
Plot 3. PWM frequency = 10 kHz, maximum duty cycle
Plot 5. Plot 4 with expanded time scale
Plot 2. Peak to peak current = 260 mA
Plot 4. PWM frequency = 10 kHz, minimum duty cycle
Plot 6. PWM frequency = 10 kHz, turn off
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
10
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