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IS31FL3237-QFLS4-TR PDF预览

IS31FL3237-QFLS4-TR

更新时间: 2024-11-11 14:51:39
品牌 Logo 应用领域
美国芯成 - ISSI PC驱动接口集成电路
页数 文件大小 规格书
18页 350K
描述
LED Driver,

IS31FL3237-QFLS4-TR 技术参数

是否Rohs认证:符合生命周期:Active
包装说明:HVQCCN, LCC44,.2SQ,16Reach Compliance Code:compliant
Factory Lead Time:6 weeks风险等级:5.71
Samacsys Confidence:4Samacsys Status:Released
Samacsys PartID:1474628Samacsys Pin Count:45
Samacsys Part Category:Integrated CircuitSamacsys Package Category:Other
Samacsys Footprint Name:IS31FL3237-QFLS4-TR-2Samacsys Released Date:2019-05-16 13:52:37
Is Samacsys:N数据输入模式:SERIAL
输入特性:STANDARD接口集成电路类型:LED DISPLAY DRIVER
JESD-30 代码:S-XQCC-N44长度:5 mm
复用显示功能:NO功能数量:1
区段数:36端子数量:44
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装等效代码:LCC44,.2SQ,16封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE座面最大高度:0.8 mm
最大压摆率:8 mA最大供电电压:5.5 V
最小供电电压:2.7 V标称供电电压:3.6 V
表面贴装:YES温度等级:AUTOMOTIVE
端子形式:NO LEAD端子节距:0.4 mm
端子位置:QUAD宽度:5 mm
最小 fmax:1 MHzBase Number Matches:1

IS31FL3237-QFLS4-TR 数据手册

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IS31FL3237  
36-CHANNEL LED DRIVER  
Preliminary Information  
May 2018  
GENERAL DESCRIPTION  
FEATURES  
IS31FL3237 is an LED driver with 36 constant current  
channels. Each channel can be pulse width modulated  
(PWM) by 16 bits for smooth LED brightness control.  
In addition, each channel has an 8-bit output current  
control register which allows fine tuning the current for  
rich RGB color mixing, e.g., a pure white color LED  
application. The maximum output current of each  
channel is designed to be 38mA, which can be  
adjusted by one 8-bit global control register.  
Proprietary programmable algorithms are used in  
IS31FL3237 to minimize audible noise caused by the  
MLCC decoupling capacitor. All registers can be  
programmed via a high speed I2C (1MHz).  
2.7V to 5.5V VCC supply  
Pin to pin with IS31FL3236/IS31FL3236A (QFN-44,  
5mm×5mm)  
1MHz I2C interface, automatic address increment  
function with readout function  
Four selectable I2C addresses  
Modulate LED brightness with  
256/1024/4096/65536 steps PWM method  
Modulate LED DC current with 256 method  
Global 256 analog global current control  
PWM frequency selectable  
Open short detect function  
Temperature detect function  
Spread spectrum  
-40°C to +125°C temperature range  
QFN-44 (5mm×5mm) package  
IS31FL3237 can be turned off with minimum current  
consumption by either pulling the SDB pin low or by  
using the software shutdown feature.  
IS31FL3237 is available in QFN-44 (5mm×5mm)  
package. It operates from 2.7V to 5.5V over the  
temperature range of -40°C to +125°C.  
APPLICATIONS  
AI-speakers and smart home devices  
LED in home appliances  
LED display for hand-held devices  
TYPICAL APPLICATION CIRCUIT  
VBattery  
VBattery  
38  
VCC  
37  
43  
OUT1  
OUT2  
1 F  
AD  
0.1 F  
44  
1
VDD  
OUT3  
OUT4  
2
2k  
2k  
41  
SDA  
SCL  
SDB  
42  
36  
Micro  
Controller  
IS31FL3237  
100k  
32  
33  
34  
35  
OUT33  
OUT34  
OUT35  
OUT36  
40  
R= (VLED+ - VF - 0.6V)/IOUT  
R_EXT  
GND  
REXT  
3.3k  
17  
39  
Figure 1 Typical Application Circuit  
Integrated Silicon Solution, Inc. – www.issi.com  
1
Rev. 0B, 05/10/2018  

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