FxLED & Backlight LED Driver Selection

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2 FxLED & Backlight LED Driver Selection Graphical Selector Guide Audio Modulate Shift Register Gamma Correction Auto Breath Charge Pump Eval Board IS31FL Channel LED, 60mA QFN-24 FxLED Driver IS31FL Outputs 3 - RGB QFN-20 IS31FL3236 IS31FL Channel LED QFN-44, TQFP-4 6 Outputs 2 - RGB QFN-20 IS31FL3235 IS31FL319 2-Channel LED QFN Outputs 2 - RGB + 4 individual QFN-20 IS31FL LED Driver QFN-2, TSSOP-2 IS31FL LED Driver QFN-24 IS31FL321 1-Channel LED QFN-24, SOP-24 IS31FL Outputs 1 - RGB DFN-10 IS31FL LED Driver (x) Audio Freq Equalizer QFN-24 IS31FL Channel LED QFN-2 RGB Multi-Channel Matrix Backlight LED Driver LED Arrangement Boost Converter Charge Pump DC Level Dim Constant Current Pulse Count Dim PWM Dim Eval Board IS31BL ma or 320mA ParallelQFN-16 IS31BL ma DFN-10 1 IS31BL3212 IS31BL3229 IS31BL ma Output DFN- 20 ma Output QFN Amp Integrated FET DFN-, TSOT Number of LEDS 1

3 FxLED IS31FL319 - AUDIO MODULATED 10 OUTPUT LED DRIVER The IS31FL319 is an LED driver with an audio synchronization mode that virtually eliminates the need of real time software processing for LED lighting effects. 10 outputs each with 3.9mA at 0.4V headroom The OUT0-9 can be operated at 4 basic modes: 2 independently controlled, 6 channels of 256 steps PWM RGB LED drivers with programmable brightness and blinking patterns for LED s lighting effects Audio synchronization mode Fully programmable operating modes top-down scan mode Audio synchronization +Top-down scan mode constant current mode One Shot Programming mode with Gamma correction combination of audio synchronization and top-down scan mode Interface intensity control mode with 256 steps current level setting for RGB lighting effects Each outputs enable/disable individually Audio gain setting VDD Range: 3.0V to 5.5V Cellular phones MP3/MP4/CD/mini-disk players Digital picture frame/toys Package: QFN-20, (3mm 3mm) Example of Breath Timing Period = T1 : T4 2

4 FxLED Multi-CHANNEL LIGHT EFFECT LED DRIVERS Multi-channel light effect LED drivers with two-dimensional auto breathing mode and an audio modulated display mode. They have a One Shot Programming mode and PWM Control mode for RGB lighting effects. The maximum output current can be adjusted in set levels (5mA~40mA). Supply voltage 2.7V to 5.5V interface, automatic address increment function RGB groups, single color LED breathing system-free pre-established pattern Independently controlled automatic and semiautomatic breathing system-free pre-established pattern The devices include an audio modulated display mode, wherein the brightness of LED can be modulated by an audio analog signal. There is a cascade pin for the synchronization of two chips. Independently controlled outputs of 256 PWM steps Programmable output current levels Audio mode with AGC function Cascade for the synchronization of chips Over-temperature protection Example of Breath Timing Period = T1 : T4 Mobile phones and other hand-held devices for LED display LED in White Good Appliances Part. Multi Device Connect IS31FL3193. RGB LED Current Cascade Audio Package Package Group Levels Input Outline 1 5 DFN-10 IS31FL QFN-20 IS31FL QFN-20 Logo Lighting 3

5 FxLED IS31FL CHANNELS LED DRIVER 2.7V to 5.5V supply interface, automatic address increment function Individually modulate each LED brightness with 256 steps PWM Audio Frame Mode with frames of memory for animations of 16 outputs not used as LED drivers can be used as GPIO ports Over-temperature protection Package: QFN-2 (4mm 4mm) 4 Mobile phones and other hand-held devices for LED display The IS31FL3216 is a fun light LED controller with an audio modulation mode. It can store data of frames with internal RAM to play small animations automatically. It can sample an input analog signal to modulate the intensity of LEDs, or control frames playing by internal ADC block. The LED current of each channel can be set in 256 steps by adjusting the PWM duty cycle through an interface. channels can be used as GPIO ports. LED in White Good Appliances

6 FxLED Multi - CHANNEL LED DRIVERS The IS31FL3216 is a fun light LED controller with an audio modulation mode. It can store data of frames with internal RAM to play small animations automatically. It can sample an input analog signal to modulate the intensity of LEDs, or control frames playing by internal ADC block. The LED current of each channel can be set in 256 steps by adjusting the PWM duty cycle through an interface. channels can be used as GPIO ports. 2.7V to 5.5V supply interface, automatic address increment function Internal reset register Modulate LED brightness with 256 steps PWM Each channel can be controlled independently Each channel can be scaled independently by 1, ½, ⅓ and ¼ Part. IS31FL321. of Current Package Package Outline Channels Scaling 1 QFN-24 SOP-24 IS31FL QFN-36 IS31FL QFN-44 TQFP-4 IS31FL321 Mobile phones and other hand-held devices for LED display LED in White Good Appliances 5

7 FxLED IS31FL BIT COLOR LED DRIVER WITH PWM CONTROL Output current capability and number of outputs: 60mA 16 outputs Constant current range: 5mA to 60mA Application output voltage: 0.4V For anode-common LEDs Power supply voltage range, VDD = 3.3V to 5.5V Serial and parallel data transfer rate: 20MHz (Max. cascade connection) Package: QFN-24 (4mm 4mm) Cellular phones The IS31FL3726 is comprised of constantcurrent drivers designed for color LEDs. The output current value can be adjusted from 5mA to 60mA through the external resistor. As a result, all outputs will have virtually the same current levels. MP3/MP4/CD/mini disk players Toys This driver incorporates 16-bit constant t-current outputs, a 16-bit shift register, a 16-bit latch and a 16-bit AND-gate circuit. 6

8 FxLED AUDIO MODULATED MATRIX LED DRIVER Supply voltage range: 2.7V to 5.5V 400kHz -compatible interface One address pin with 4 logic levels to allow four slave addresses Individual blink control The devices are compact LED driver for addressing multiple LEDs in a matrix arrangement which are programmable via an interface. Additionally each of the LEDs can be dimmed individually with -bit allowing 256 steps of linear dimming. The intensity of any matrix picture can be modulated by an audio signal. Additional features help minimize MCU/DSP software overhead. Auto intensity breathing during the switching of different frames Audio modulated LED display frame intensity frames memory for animations (IS31FL3731) Picture mode and animation mode (IS31FL3731) Mobile phones and other hand-held devices for LED display LED in White Good Appliances Audio frequency equalizer display Part. Matrix Size IS31FL Block (64) IS31FL3730 IS31FL3731 Current Package Scaling QFN Blocks (64) QFN Blocks (72) QFN-2 TSSOP-2 Package Outline 7

9 BACKLIGHT IS31BL LED BACKLIGHT DRIVER Supply voltage: 2.7V ~ 5.5V 1X, 1.5X operating mode Fade in and fade out mode Output current can be 25mA 32 current level and PWM intensity control Low input current ripple, low EMI 90% high efficiency inductors, low noise operation Over voltage protection on output Package: QFN-20 (3mm 3mm ) Built-in thermal protection Automatic soft start Built-in thermal protection The IS31BL3229 with a smart charge-pump circuit is a parallel white-led driver with eight matched 20mA current outputs. It can supply a total output current of 160mA over an input voltage range of 2.7V to 5.5V. The IS31BL3229 typically draws less than 1µA when placed in shutdown, and 0.7mA when operating in the noload and 1X mode condition. If any of the outputs are not used, leave the pin(s) unconnected. Brightness can be controlled by simple-series-control techniques and external PWM signal. Cell phone, smart phone, PDA Mp3, Mp4, Personal Navigation Devices White LED backlighting

10 BACKLIGHT MULTI-CHANNEL CONSTANT CURRENT LED DRIVERs The IS31BL3230 provides eight regulated current sources of up to 40mA of load current each, while the IS31BL3212 provides four regulated current sources of up to 23mA of load current each. All the outputs can be connected in parallel to combine the currents for up to 320mA (BL3230) or 92mA (BL3212) flowing through one LED. They require no charge pump, have no EMI noise and have significantly improved efficiency. Ultra low headroom voltage Cost effective LED driver Current adjustable via external resistors Best ise and Efficiency Performance Highly integrated design, minimal component 1.0µA (typ.) Shutdown current (BL3212) Flash LED driver White LED display and keypad backlight Cell Li-ion battery-operated equipment including PDAs, hand-held PCs, cellular phone Part. Channels IS31BL3230 IS31BL Current Package Package Source (ma) Outline 40 QFN DFN- 9

11 BACKLIGHT IS31BL FLASH LED DRIVER Operates from 2.7V to 5.5V Up to 90% efficiency in Torch Mode Output current up to 750mA Adjustable output current in Flash Mode Minimum external components, no external inductor required Automatic boost mode Less than 1µA shutdown current Low ripple and EMI Package: DFN-10 (3mm 3mm) The IS31BL3231 is a current-regulated charge pump and ideal for powering high brightness LEDs for camera flash and torch applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The IS31BL3231 automatically switches between linear and boost modes ensuring that LED current does not depend on the LED forward voltage. Over voltage protection on output Short and over temperature protections White LED backlighting Cellular phones Generic lighting/flash/strobe applications IS31BL3231 provides low cost, space saving solution for driving LED. It also integrates thermal and short circuit protection function. 10

12 IS31BL3506A - 1.0MHZ BOOST CONVERTER BACKLIGHT 35V Internal MOSFET Switch Supply voltage: 2.7V~5.5V Built-in soft start Drive series strings of -9 LEDs (DFN-) - LEDs (TSOT-23-6) PWM or DC voltage dimming Frequency of PWM is 500Hz ~ 500kHz Package: TSOT-23-6 and DFN- (2mm 2mm) 1.0MHz high speed switching frequency 300mV feedback voltage Over voltage protection IS31BL3506A is a boost converter featuring an integrated MOSFET switch designed for driving series strings of LEDs. The input operating voltage range is 2.7V~5.5V. The regulated LED load current is set using an external, low value sensing resistor. The device adjusts the PWM duty cycle of the switch to maintain the voltage at the FB pin at a value of 0.3V. The IS31BL3506A operates at a constant switching frequency of 1.0MHz to allow for small component size. IS31BL3506A features an over voltage shutdown pin which prevents the output voltage from exceeding 35V (typ.) in the case of an open circuit condition. -40 C ~ +5 C working temperature range Small LCD Backlights tebook PC GPS 11

13 Ordering Information uct Selector Guide FxLED Driver Part. IS31FL319 IS31FL3193 IS31FL3196 IS31FL3199 IS31FL3216 IS31FL321 IS31FL3235 IS31FL3236 IS31FL3726 IS31FL372 IS31FL3730 IS31FL3731. of. RGB Gamma Control Audio Auto VDD Package Key Feature Channel Group Correction Interface Sync. Dimming (V) (Size mm) 10 2 Built-in SPI QFN-20 Auto RGB color mixing with (3.0x3.0) Audio Sync mode 3 1 Built-in DFN-10 16Million color RGB auto and (3.0x3.0) semi-auto breathing with pre-set pattern 6 2 Built-in QFN-20 16Million color RGB auto and (3.0x3.0) semi-auto breathing with AGC Audio Sync mode 9 3 Built-in QFN-20 16Million color RGB auto and (3.0x3.0) semi-auto breathing with pre-set pattern 16 External QFN-2 Audio modulated, Internal SRAM (3.0x3.0) supports animation frames, 16 independent channels 1 External QFN-24 Modulate 1 Independent LED (4.0x4.0) channels with 256 steps PWM SOP-24 (10x15) 2 External QFN-36 Modulate 2 Independent LED (4.0x4.0) channels with 256 steps PWM 36 External QFN-44 Modulate 36 Independent LED (5.0x5.0) channels with 256 steps PWM TQFP-4 16 Serial QFN channels On/Off LED driver (4.0x4.0) with serial-in and serial-out for cascade application 16 External QFN row/column outputs, Audio Matrix 64 (4.0x4.0) Modulated. x, 7x9, 6x10, 5x11 matrix arrays. 16 External QFN row/column outputs, Audio Matrix 12 (4.0x4.0) Modulated. x, 7x9, 6x10, 5x11 bi-color matrix arrays. 1 External QFN-2 1 row/column outputs. Audio Matrix 144 (4.0x4.0) Modulated, Two x9 arrays with SSOP-2 SRAM. -image swapping x9x2 (144 dot) LED array display Status FxLED Driver Evaluation Boards IC Part Number IS31FL319-QFLS2 IS31FL3193-DLS2 IS31FL3199-QFLS2 IS31FL3216-QFLS2 IS31FL321-GRLS2 IS31FL3236-QFLS2 IS31FL3726-QFLS2 IS31FL372-QFLS2 IS31FL3730-QFLS2 IS31FL3731-QFLS2 12 Demo Board Part Number IS31FL319-QFLS2-EB IS31FL3193-DLS2-EB IS31FL3199-QFLS2-EB IS31FL3216-QFLS2-EB IS31FL321-GRLS2-EB IS31FL3236-QFLS2-EB IS31FL3726-QFLS2-EB IS31FL372-QFLS2-EB IS31FL3730-QFLS2-EB IS31FL3731-QFLS2-EB Audio Modulated LED Driver 3-Channel LED Driver 9-Channel LED Driver 16-Channel LED Driver 1-Channel LED Driver 36-Channel LED Driver 16-Bit Serial w/pwm Control LED Driver 64-Matrix Audio Modulated LED Driver 12-Matrix Audio Modulated LED Driver 144-Matrix Audio Modulated LED Driver

14 Ordering Information White LED Driver for LCD Backlight & Flash Part. IS31BL3212. of Type of Driver LED 3/4 Constant Current IS31BL3229 IS31BL3230 IS31BL IS31BL IS31BL3506A 9 IS31BL3506B IOUT (ma) 23 VDD (V) ISD Intensity Package Key Feature Status (ua) Control (Size in mm) Pulse DFN- Ultra low headroom voltage, highly Count (2.0x2.0) integrated design with minimal component Constant Current PWM QFN-20 channel output with built-in charge w/charge pump (3.0x3.0) pump for high efficiency mode (1x/1.5x) Constant Current 40mA or PWM QFN-16 Ultra low headroom voltage. All out 320mA in (3.0x3.0) puts may be connected in parallel parallel Charge Pump Pulse DFN-10 Camera Flash LED Driver Count (3.0x3.0) Charge Pump Pulse DFN=10 Camera Flash LED Driver with time S=Q1/13 Count (3.0x3.0) out protection Boost PWM or TSOT V Internal MOSFET 1MHz Step DC Level (3.0x3.0) up Converter; Vfb = 300mV DFN- (2.0x2.0) Boost PWM or TSOT V Internal MOSFET 1MHz Step- S=Q4/12 DC Level (3.0x3.0) up Converter; Vfb = 200mV LED Driver Evaluation Boards IC Part Number IS31BL3212-STLS2 IS31BL3230-QFLS2 IS31BL3231-DLS2 IS31BL3506A-DLS2 Demo Board Part Number IS31BL3212-STLS2-EB IS31BL3230-QFLS2-EB IS31BL3231-DLS2-EB IS31BL3506A-DLS2-EB 3-Channel Constant Current LED Driver -Channel Constant Current LED Driver LED Flash Driver DC/DC Boost Converter LED Backlight Driver 13

15 ISSI Sales Offices *HEADQUARTERS West Coast Office San Jose, CA Tel Fax China Office Beijing Tel Tel Fax China Office Xiamen City Tel Fax India Office New Delhi Tel Fax Japan Office Tokyo Tel Fax Central Office Copell, TX Tel Fax China Office Shanghai Tel Fax Taiwan Office Hsin-Chu Tel Fax India Office Bangalore Tel Fax Korea Office Kyunggi-Do Tel Fax East Coast Office Dunstable, MA Tel Fax China Office Shenzhen Tel Fax Taiwan Office Taipei Tel Fax India Office Chennai Tel Fax Singapore Office Tel Fax Southeast Office Raleigh, NC Tel. China Office Hong Kong Tel Fax Europe Office Devon England Tel Fax 1940 Zanker Road San Jose, CA Tel: Fax: Web: , ISSI, Inc. All Rights Reserved. ISSI is a registered trademark of Integrated Silicon Solution, Inc.

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