XRP7620 Exar Corporation, XRP7620 Datasheet
XRP7620
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XRP7620 Summary of contents
Page 1
... The XRP7620 is designed to operate from a single cell lithium-ion battery or fixed 3.3V or 5.0V power rails and is available in a RoHS compliant, “green”/halogen free space saving 8-pin 2mmx3mm DFN package ...
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... Current DAC Resolution Current for DAC=000000 Current for DAC=000001 Maximum LED Current DAC=111111 Maximum Current Change Settling Time Current Source Dropout Voltage Shutdown Supply Current Shutdown Supply Current Thermal Shutdown Die Temperature © 2009 Exar Corporation ...
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... Parameter Thermal Shutdown Hysteresis SDA, SCL Input Logic Low Voltage SDA, SCL Input Logic High Voltage SDA, SCL Timeout for Shutdown PECIFICATION XRP7620 Status R/W Address Data S A 7-bit 1/0 8-bit Start Condition Acknowledgement sent by the slave IMING HARACTERISTICS Unless otherwise indicated ...
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... and t measured between 0 and Fig. 3: XRP7620 Block Diagram 2mm x 3mm VIN 1 8 SDA 2 7 SCL 3 6 GND 4 5 DFN-8L Fig. 4: XRP7620 Pin Assignement 4/ ...
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... J XRP7620IHTR-F -40°C≤T ≤+100°C J XRP7620EVB XRP7620 Evaluation Board “YY” = Year – “WW” = Work Week – “F”= Green/Halogen Free Package - “X” = Lot Number XRP7620 may be ordered with alternative I © 2009 Exar Corporation ...
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... Information/Theory of Operation section of this datasheet SDA SCL 20mA/div LED Fig. 5: LED Current Change Settling Time From 0.5mA to 31.5mA Fig. 7: SDA, SCL Timeout for Shutdown Fig. 9: Line Regulation DAC = 101000 (20mA) © 2009 Exar Corporation ...
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... Fig. 11: Line Regulation @ T DAC = 111100 (30mA) Fig. 13: Line Regulation @ T DAC = 111100 (30mA) Fig. 15: Line Regulation @ T DAC = 001010 (5mA) © 2009 Exar Corporation ...
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... Keeps registers contents 1 1 Active Table 2: XRP7620 Status Register Bits B7 and B6 Status register bits B5-B2 These bits are to control the LED On/Off individually. Putting 1 (logic high) will enable the driver and putting 0 (logic low) will disable the driver. Status register bits B1 and B0 These bits are the readback bits ...
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... Addressing and Writing Data To write data to the XRP7620 one of the following two cycles must be followed: Easy shutdown/startup sequence [Slave Address with write bit][Data for Status] Full shutdown/startup sequence [Slave Address with write Status][Data for LED1][Data for LED2][Data ...
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... PACKAGE SPECIFICATION 8- PIN DFN © 2009 Exar Corporation 10/ ...
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... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...