参数资料
型号: AS3647-ZWLT-500
厂商: ams
文件页数: 2/38页
文件大小: 0K
描述: IC WHITE LED FLASH DVR 13WLCSP
标准包装: 1
恒定电压:
拓扑: PWM,升压(升压)
输出数: 2
内部驱动器:
类型 - 主要: 闪灯/白光
频率: 4MHz
电源电压: 2.7 V ~ 4.4 V
输出电压: 2.8 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 13-UFBGA,WLCSP
供应商设备封装: 13-WLCSP(2.25x1.5)
包装: 标准包装
工作温度: -30°C ~ 85°C
其它名称: AS3647-ZWLT-500DKR
Datasheet
AS3647/47B
1600mA High Current LED Flash Driver
1 General Description
The AS3647/47B is an inductive high efficient DCDC
step up converter with two current sinks. The DCDC
step up converter operates at a fixed frequency of 4MHz
and includes soft startup to allow easy integration into
noise sensitive RF systems. The two current sinks can
operate in flash / torch / assist (=video) light modes.
2 Key Features
?? High efficiency 4MHz fixed frequency DCDC Boost
converter with soft start allows small coils
- Stable even in coil current limit
?? LED current adjustable up to 1600mA
The AS3647/47B includes flash timeout, overvoltage,
?? Automatic
current adjustment for low battery voltage
The AS3647/47B is controlled by an I C interface and
?? I
C Interface with automatic shutdown
overtemperature, undervoltage and LED short circuit
protection functions. A TXMASK/TORCH function
reduces the flash current in case of parallel operation to
the RF power amplifier and avoids a system shutdown.
Alternatively this pin can be used to directly operate the
torch light directly.
2
has a hardware automatic shutdown if SCL=0 for
100ms. Therefore no additional enable input is required
for shutting down of the device once the system shuts
down.
?? PWM operation for lower output current for reliable
light output of the LED; running at 31.25kHz to avoid
audible noise
?? Protection functions:
Automatic Flash Timeout timer to protect the LED(s)
Overvoltage and undervoltage Protection
Overtemperature Protection
LED short/open circuit protection
2
?? 5V constant voltage mode operation
?? Available
in tiny WL-CSP Packages, 13 balls 0.5mm
pitch 2.25x1.5x0.6mm, 15 balls 0.4mm pitch
The AS3647/47B is available in a space-saving WL-
CSP package measuring only 2.25x1.5x0.6mm
(AS3647B: 2.25x1.5x0.5mm) and operates over the -
30oC to +85oC temperature range.
Figure 1. Typical Operating Circuit
2.25x1.5x0.5mm package size
3 Applications
Flash/torch/videolight for smartphones, feature-phones,
tablets, DSCs, DVCs
     
%
  ( )*
  
  ) 
  
 ! "#
  $         
  $ #
  $ 
  ) 
  +' ,
 -,  ."
    *
%  & $  
      
  
      
%  & $ #
 
   
  #      /   
  %
AS3647/47B
'
www.austriamicrosystems.com/AS3647
(ptr)
1.5-4
1 - 37
相关PDF资料
PDF描述
AS3643-ZWLT-500 IC WHITE LED FLASH DVR 13WLCSP
P51-750-A-P-I12-5V-000-000 SENSOR 750PSI 22MM M20-1.5 6G 5V
P51-300-G-B-MD-4.5OVP-000-000 SENSOR 300PSI 1/8-27NPT .5-4.5V
P51-100-A-AD-M12-5V-000-000 SENS 100PSI 7/16-20 UNF 1-5V
REC5-2412DRWZ/H2/A/M/CTRL CONV DC/DC 5W 9-36VIN +/-12VOUT
相关代理商/技术参数
参数描述
AS3648-ZWLT 功能描述:IC LED DVR 2000MA FLASH 13WLCSP 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
AS3648-ZWLT-500 功能描述:IC WHITE LED FLASH DVR 13WLCSP 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
AS36490FLF 制造商:TT Electronics / IRC 功能描述:AS36490FLF
AS36490HLF 制造商:TT Electronics / IRC 功能描述:AS36490HLF
AS36490JLF 制造商:TT Electronics / IRC 功能描述:AS36490JLF