XRP7620 Datasheet, PDF (6/11 Pages) Exar Corporation – 4-Channel Adjustable Current I2C Controlled LED Driver

XRP7620
4-Channel Adjustable Current I2C Controlled LED Driver
Typical Performance Characteristics
All data taken at V_IN = 2.7V to 5.5V, T_J = T_A = 25°C, unless otherwise specified - Schematic and BOM from Application
Information/Theory of Operation section of this datasheet.
CH₁ = SDA, CH₂ = SCL, CH₄ = I_LED = 20mA/div
Fig. 5: LED Current Change Settling Time
From 0.5mA to 31.5mA
Fig. 6: LED Current Change Settling Time
From 0mA to 31.5mA
Fig. 7: SDA, SCL Timeout for Shutdown
Fig. 8: LED Current Change Settling Time
From DAC 31.5mA to 0mA
Fig. 9: Line Regulation
DAC = 101000 (20mA)
© 2009 Exar Corporation
6/11
Fig. 10: Line Regulation LED1
DAC = 101000 (20mA)
Rev. 1.0.0