参数资料
型号: AS3647-ZWLT-500
厂商: ams
文件页数: 19/38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
AS3647/47B
Datasheet, Confidential - D e t a i l e d D e s c r i p t i o n
Figure 22. Low Voltage current Reduction Waveform with diagnostic-Flash and Main-Flash Phase
                    
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!         
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 %             
           
           
                        
  %     %              
If the diagnostic flash should be short (e.g. 10ms) it is recommended to operate this diagnostic flash at slightly higher
vin_low_v_run setting compared to the main flash as shown in Figure 23 :
Figure 23. Low Voltage current Reduction Waveform with short diagnostic-Flash and Main-Flash Phase
                    
   & '           
(          
                             %              %     
       %               %     
             
        
       
           
     
            
   !        
"               #
!         
  $          
 %             
           
           
                        
  %     %              
the I C command (see Figure 24) :
The different settings for vin_low_v_run allow a constant main flash current without dropping VIN below vin_low_v_run .
Flash Strobe Timings
The flash timing are defined as follows:
1. Flash duration defined by register flash_timeout and flash is started immediately when this mode is selected by
2
set strobe_on = 0, start the flash by setting out_on = 1
2. Flash duration defined by register flash_timeout and flash started with a rising edge on pin STROBE (see Fig-
ure 25) :
set strobe_on = 1 and strobe_type = 0
3. Flash start and timing defined by the pin STROBE; the flash duration is limited by the timeout timer defined by
flash_timeout (see Figure 26 and Figure 34 ):
set strobe_on = 1 and strobe_type = 1
www.austriamicrosystems.com/AS3647
1.5-4
18 - 37
相关PDF资料
PDF描述
AS3643-ZWLT-500 IC WHITE LED FLASH DVR 13WLCSP
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