DATASHEET To request the full datasheet, please visit www.intersil.com/products/isl98611 ISL98611 FN8662 Rev.4.00 High Efficiency Display Power and LED Driver for Smart Phones Sep 13, 2017 The ISL98611 is a high-efficiency display power supply and Features LED driver for small size displays, such as smart phones. It Display power output voltage: 5V, 5.6V integrates a boost regulator, LDO, and inverting charge pump that are used to generate regulated positive and negative Positive and negative voltages can be programmed from voltages for display power. It also integrates a boost regulator 4.5V to 6V and 3-channel current sinks for the LED backlight driver. The >88% efficiency with 12mA load between VP and VN positive and negative output voltages can be adjusted from Up to 93% efficient LED driver 4.5V up to 6V. Only 8 external components integrated compensation and The ISL98611 extends the battery life of mobile devices by feedback circuits delivering greater than 88% efficiency for the display power function and up to 93% efficiency for the backlight driver when Analog, PWM, and hybrid dimming powering 12 LEDs. It reduces the PCB area by integrating the 2.2% current matching down to 1mA and 2.8% at 50A two functions into a single IC and by requiring only eight Can drive 2 strings of LEDs external components in total. 10-bit linear and 11-bit logarithmic DC output current This product drives backlight LEDs with excellent current control matching even at very low LED current (2.2% down to 1mA 2 and 2.8% at 50A), improving the brightness uniformity of I C, PWM, and SWIRE dimming inputs with internal LCD displays. It includes analog, PWM, and hybrid dimming to multiplier for CABC maximize LED efficiency while eliminating color shift issues. 2.5V to 5V input voltage range 2 The ISL98611 is offered in a 2.33x2.61mm WLCSP package VP and VN output adjustable from 4.5V up to 6V with and the device is specified for operation across the 50mV steps -40C to +85C ambient temperature range. 2 I C adjustable output voltages and settings 1A shutdown supply current Applications RoHS compliant TFT-LCD Smart phone displays Small size/handheld display TABLE 1. KEY DIFFERENCES BETWEEN PARTS PART NUMBER VP/VN OPTIONS (V) Related Literature ISL98611IIZ-T 5 For a full list of related documents, visit our website ISL98611II56Z-T 5.6 - ISL98611 product page 3P6S 30mA/string V IN 2.5V TO 5V L2 C VLED 10H 4.7F CIN 0603 L 1 10F LXLED VIN VLED 2.2H 0402 CH0 CH1 CH2 LXBST VBSTCP VBST CVBST ISL98611 C CP 10F 10F CP 0402 0402 FAULT C VN SWIRE CN 10F PWMI 0402 SCL -5.0V PROCESSOR VN SDA NEGATIVE SUPPLY ENP VSUB LCD PANEL ENN POSITIVE SUPPLY ENLED VP AGND PGND +5.0V CVP 10F 0402 FIGURE 1. TYPICAL APPLICATION CIRCUIT FOR 3-CHANNEL LED DRIVER FN8662 Rev.4.00 Page 1 of 2 Sep 13, 2017ISL98611 2P7S 30mA/string VIN 2.5V TO 5V L2 CVLED 10H 4.7F C IN 0603 L1 10F LXLED VIN VLED 2.2H 0402 CH0 CH1 CH2 LXBST VBSTCP VBST ISL98611 C VBST C CP 10F 10F CP 0402 0402 FAULT C VN SWIRE CN 10F PWMI 0402 SCL -5.0V PROCESSOR VN SDA NEGATIVE SUPPLY ENP VSUB LCD PANEL ENN POSITIVE SUPPLY ENLED VP AGND PGND +5.0V C VP 10F 0402 FIGURE 2. TYPICAL APPLICATION CIRCUIT FOR 2-CHANNEL LED DRIVER Copyright Intersil Americas LLC 2014-2017. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil s sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN8662 Rev.4.00 Page 2 of 2 Sep 13, 2017