Datasheet LED Driver 2 with I C Compatible and 3-wire Serial Interface for 56 LEDs in Dot Matrix BU26507GUL General Description Features - continued BU26507GUL is Matrix LED Driver that is the most Interface 2 suitable for the cellular phone. SPI and I C BUS FS modemax 400kHz It can control 5x6 (30 dot) LED Matrix by internal Compatibility 2 2 5-channel PMOS SWs and 6-channel LED drivers. For I C mode, I C Device address is selectable It can control the luminance and firefly lighting of the (74h or 75h) LED matrix by the setting of the internal register. Thermal shutdown 2 It supports SPI and I C interface. It adopts the very thin CSP package that is the most Key Specification suitable for the slim phone. VBAT input voltage 2.7V to 5.5V Oscillator frequency: 1.2MHz(Typ.) Features Operating temperature range: -40 to +85 LED Matrix driver (7x17) It has 5-channel PMOS SWs and 6-channel Package W(Typ.) x D(Typ.) x H(Max.) current drivers with 1/5 timing driven VCSP50L2: 2.50mm x 2.50mm x 0.55mm sequentially. Put ON/OFF (for every dot) The current drivers can drive from 0 to 20.00mA current with 16steps(for every dot)(ISET=100k ) The current drivers can drive maximum 42.5mA/Line(ISET=47k ) 64 steps of the luminance control by PWM (common setting for all dots) Easy register setting by A/B 2-side map for each dot. Automatic Slope function Cycle time, Slope time can be set for each dot. 8-direction automatic scroll function. Typical Application Circuit Pin Configuration Bottom View VBAT VINSW VBAT VINSW 4.7F/6.3V 4.7F/6.3V TEST1 SCL SDA SW5 SW4 E VIO SW5 VIO SW4 SW3 RESETB 4.7F/6.3V CE SYNC SW3 VINSW D RESETB SW2 SW1 SCL BU26507GUL IFMODE VIO SW2 SW1 SDA TESTO C CE LED6 IFMODE LED5 LED2 LED4 LED5 ISET CLKIO B SYNC LED4 Index LED3 ISET LED2 VBAT LED1 LED3 GND LED6 A LED1 CLKIO X 1 2 3 4 5 Y Matrix Direction Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays www.rohm.com TSZ02201-0G3G0CZ00260-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/34 TSZ2211114001 22.Jan.2013 Rev.001 TESTO (OPEN) TEST1 GND DatasheetDatasheet BU26507GUL o Absolute Maximum Ratings (Ta=25 C) Parameter Symbol Limits Unit Terminal voltage VMAX 7 V Power Dissipation (note) Pd 790 mW Operating Temperature Range Topr -40 to +85 Storage Temperature Range Tstg -55 to +125 o o Note Power dissipation deleting is 7.9mW/ C , when its used in over 25 C. (ROHMs standard board has been mounted.) The power dissipation of the IC has to be less than the one of the package. o Recommended Operating Ratings (VBAT VIO, Ta=-40 to 85 C) Parameter Symbol Limits Unit VBAT input voltage VBAT 2.7 to 5.5 V VINSW input voltage VINSW 2.7 to 5.5 V VIO pin voltage VIO 1.65 to 3.3 V Electrical Characteristics (Unless otherwise specified, Ta=25C, VBAT=3.6V, VINSW=3.6V, VIO=1.8V) Limit Parameter Symbol Unit Condition Min. Typ. Max. Circuit Current VBAT Circuit current 1 IBAT1 - 0 3.0 A RESETB=0V, VIO=0V VBAT Circuit current 2 IBAT2 - 0.5 5.0 A RESETB=0V, VIO=1.8V VBAT Circuit current 3 mA When LED1-6 are active IBAT3 - 0.8 1.4 with default settings. UVLO UVLO Threshold VUVLO - 2.1 2.5 V VBAT falling UVLO Hysteresis VHYUVLO 50 - - mV LED Driver (LED1-6) ILEDMax1 - 20.00 - mA LED1-6 ,ISET100k Maximum output current ILEDMax2 - 42.50 - mA LED1-6 ,ISET47k I=10.67mA setting, Output current ILED 9.92 10.67 11.41 mA VLED=1V,ISET=100 k ILEDMT= (ILEDMax-ILEDMin)/ LED current Matching ILEDMT - - 5 % (ILEDMax+ILEDMin) I=10.67mA setting, VLED=1V VBAT Driver pin voltage range VLED 0.2 - V ISET=100 k - 1.4 LED OFF Leak current ILKLED - - 1.0 A PMOS switch Leak current at OFF ILEAKP - - 1.0 A Resistor at ON RonP - 1.0 - Isw=60mA, VINSW=4.5V OSC OSC frequency fosc 0.96 1.2 1.44 MHz CE, SYNC, IFMODE L level input voltage VIL1 -0.3 - 0.25 x VIO V H level input voltage VIH1 0.75 x VIO - VIO +0.3 V L level input current IIL1 - 0 1 A H level input current IIH1 - 0 1 A SDA, SCL L level input voltage VIL2 -0.3 - 0.25 x VIO V H level input voltage VIH2 0.75 x VIO - VIO +0.3 V Input hysteresis Vhys 0.05 x VIO - - V L level output voltage VOL2 0 - 0.3 V At 3mA sink current (for SDA pin) Input voltage Input current Iin1 -3 - 3 A = from (0.1 x VIO) to (0.9 x VIO) www.rohm.com TSZ02201-0G3G0CZ00260-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/34 TSZ2211115001 22.Jan.2013 Rev.001