EUP3595 Datasheet | Eutech Microelectronics

DESCRIPTION The EUP3595 is a parallel white-LED driver with four matched current outputs. It can supply a total output current of 100m A over an input voltage range of 3.0V to 5.5V. The amount of constant current sourced to the outputs is user selectable using one external sense resistor. EUP3595 typically draws 0.01µA when placed in shutdown, and 180µA when operating in the no-load condition. If any of the outputs are not used, leave the pin(s) unconnected. Brightness can be controlled by PWM techniques or by adding a DC voltage. A PWM signal can be applied to .. the EN/PWM pin to vary the perceived brightness of the LED. The EUP3595 uses an active-high enable level. The EUP3595 is available in TDFN-8 and TSSOP-8 package. FEATURES z z z z z z z z z Regulated IOUT With ± 0.3% Matching Between Constant Current Outputs Drives One, Two, Three or Four White LED’s with No Ballast Resistors 3.0V to 5.5V Input Voltage Up to 100m A Output Current Active-High Enable Very Small Solution Size Very Low Shutdown Current (0.01µA typical) Available in TDFN-8 ,TSSOP-8 Package Ro HS pliant and 100% Lead(Pb)-Free APPLICATIONS z z z Portable devices using white or blue LEDs with display and backlight or front-light Keypad LEDs Strobe LEDs Typical Application Circuit Figure 1. DS3595 Ver1.0 Feb. 2007 Block Diagram .. Figure 2. Pin Configurations Package Type Pin Configurations Package Type Pin Configurations TDFN-8 TSSOP-8 Pin Description PIN VIN GND EN/PWM ISET LED1-4 TDFN-8 1 2 3 4 8-5 TSSOP-8 1 2 3 4 8-5 Input Voltage Ground Active-High Enable Input - There is no internal pull-down resistor. Current Set Input- The resistor value tied between this pin and ground sets the output current. Current Source Outputs 1- 4 - Connect directly to LED’s DESCRIPTION DS3595 Ver1.0 Feb. 2007 Ordering Information Order Number EUP3595JIR1 EUP3595QIR1 Package Type TDFN-8 TSSOP-8 Marking Operating Temperature range -40 °C to 85°C -40 °C to 85°C xxxx 3595A xxxx...