BD6085GUL

LED Drivers for LCD Backlights Multifunction Backlight LED Drivers for Small LCD Panels (Charge Pump Type) BD6085GUL ●Description BD6085GUL is Multi-Function LED Driver that is the most suitable for the cellular phone. It has many functions that are needed to "the upper side" of the cellular phone. ●Features 1) Total 7LEDs driver for LCD Backlight (Main/Sub) and LED Flash It can set maximum 30mA by 32 steps (Current DAC) for Main/Sub Display It can set maximum 360mA for Flash LED driver (It has 3 channels LED driver at maximum 120mA/ch for Flash.) The number of lighting for Main/Sub/Flash LED can be set up grouping by register. Ex. ) 4LEDs / 0LED / 3LEDs 4LEDs / 1LED / 2LEDs 4LEDs / 2LEDs / 1LED 4LEDs / 1LED / 1LED 5LEDs / 1LED / 1LED 5LEDs / 0LED / 2LEDs 6LEDs / 0LED / 1LED It can use the 1LED Flash module to 3LED Flash module. Normal mode = maximum 30mA/ch, Flash mode = x4 normal mode (for 3ch LED). The grouping of LED is independently controlled by register. 2) 4ch Series Regulator (LDO) It has selectable output voltage by the register. LDO1,LDO2 : Iomax=200mA LDO3,LDO4 : Iomax=150mA 3) Charge Pump DC/DC for LED driver It has x1/x1.33/x1.5/x2 mode that will be selected automatically. Soft start functions Over voltage protection (Auto-return type) Over current protection (Auto-return type) 4) Thermal shutdown (Auto-return type) 2 5) I C BUS FS mode(max 400kHz)Write/Read 6) VCSP50L3(3.30mm×3.30mm, 0.55mm) Small and thin CSP package *This chip is not designed to protect itself against radioactive rays. *This material may be changed on its way to designing. *This material is not the official specification. No.11040EAT28 ●Absolute Maximum Ratings (Ta=25 ℃) Parameter Maximum voltage Power Dissipation Operating Temperature Range Storage Temperature Range Symbol VMAX Pd Topr Tstg Ratings 7 1325 -35 ~ +85 -55 ~ +150 Unit V mW ℃ ℃ note)Power dissipation deleting is 10.6mW/ ℃, when it’s used in over 25 ℃. (It’s deleting is on the board that is ROHM’s standard) ●Operating conditions (VBAT≥VIO, Ta=-35~85 ℃) Symbol VBAT VIO Ratings 2.7~5.5 1.65~3.3 Unit V V Parameter VBAT input voltage VIO pin voltage www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 1/28 2011.04 - Rev.A BD6085GUL ●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V) Limits Parameter Symbol Unit Min. Typ. Max. 【Circuit Current】 VBAT Circuit current 1 VBAT Circuit current 2 VBAT Circuit current 3 VBAT Circuit current 4 VBAT Circuit current 5 VBAT Circuit current 6 VBAT Circuit current 7 VBAT Circuit current 8 VBAT Circuit current 9 【LED Driver】 LED current Step White LED Maximum setup current Flash LED Maximum setup current White LED current accuracy Flash LED current accuracy LED current Matching Flash / Normal current ratio LED OFF Leak current 【DC/DC(Charge Pump)】 Maximum Output voltage Current Load Oscillator frequency Over Voltage Protection detect voltage Short Circuit current limit 【I C Input (SDA, SCL)】 LOW level input voltage HIGH level input voltage Hysteresis of Schmitt trigger input LOW level output voltage (SDA) at 3mA sink current Input current each I/O pin 【RESETB】 LOW level input voltage HIGH level input voltage Input current each I/O pin VIL VIH Iin -0.3 0.75 × VIO -3 0.25 × VIO VBAT +0.3 3 V V μA VIL VIH Vhys VOL lin -0.3 0.75 × VIO 0.05 × VIO 0 -3 0.25 × VIO VBAT +0.3 0.3 3 V V V V μA 2 Technical Note Condition IBAT1 IBAT2 IBAT3 IBAT4 IBAT5 IBAT6 IBAT7 IBAT8 IBAT9 ILEDSTP IMAXWLED IMAXFLED IWLED IFLED ILEDMT RATFL ILKLED V℃P IOUT fosc OVP Ilim - 0.1 0.5 90 90 390 61 84 94 128 32 1.0 3.0 150 150 600 65 94 104 136 μA μA μA μA μA mA mA mA mA Step RESETB=0V, VIO=0V RESETB=0V, VIO=1.8V LDO1=LDO2=ON, ILDO=0mA Other blocks=OFF LDO3=LDO4=ON, ILDO=0mA Other blocks=OFF LDO1=LDO2=ON, ILDO=0mA DC/DC x1mode, ILED=2.8125(30x3/32)mA x 4ch DC/DC x1mode, ILED=60mA VBAT=3.7V, LED Vf=3.0V DC/DC x1.33mode, ILED=60mA VBAT=3.1V, LED Vf=3.0V DC/DC x1.5 mode, ILED=60mA VBAT=2.9V, LED Vf=3.5V DC/DC x2 mode, ILED=60mA VBAT=2.9V, LED Vf=4.0V LED1~7 LED1~7 (Normal mode) LED5~7 (Flash mode) ILED=15mA setting (Normal mode) At VLED=1.0V ILED=60mA setting (Flash mode) At VLED=1.0V Between LED1~7 at VLED=1.0V LED5~7, Flash mode/Normal mode At VLED=1.0V VLED=4.5V -7% 3.2 4.65 0.72 5.0 - 30 120 15 60 4 5.1 0.9 5.5 250 +7% 4 4.8 1.0 5.55 480 1.08 6.0 500 mA mA mA mA % A/A μA V mA MHz V mA VBAT≥3.2V, VOUT=4V VOUT=0V Input voltage = 0.1×VIO~0.9×VIO Input voltage = 0.1×VIO~0.9×VIO www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 2/28 2011.04 - Rev.A BD6085GUL ●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V) Limits Parameter Symbol Unit Min. Typ. Max. 【Regulator (LDO1)】 1.164 1.261 1.455 1.552 1.746 2.134 2.328 2.425 2.522 2.619 2.716 2.813 2.910 3.007 3.104 3.201 1.164 1.261 1.455 1.552 1.746 2.134 2.328 2.425 2.522 2.619 2.716 2.813 2.910 3.007 3.104 3.201 1.20 1.30 1.50 1.60 1.80 2.20 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 0.2 10 10 65 250 1.0 1.20 1.30 1.50 1.60 1.80 2.20 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 0.2 10 10 65 250 1.0 1.236 1.339 1.545 1.648 1.854 2.266 2.472 2.575 2.678 2.781 2.884 2.987 3.090 3.193 3.296 3.399 200 0.3 60 60 500 1.5 1.236 1.339 1.545 1.648 1.854 2.266 2.472 2.575 2.678 2.781 2.884 2.987 3.090 3.193 3.296 3.399 200 0.3 60 60 500 1.5 V V V V V V V V V V V V V V V V mA V mV mV dB mA kΩ V V V V V V V V V V V V V V V V mA V mV mV dB mA kΩ Technical Note Condition Output voltage Vo1 Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Vo=1.8V VBAT=2.5V, Io=200mA, Vo=2.8V Io=1~200mA, Vo=1.8V VBAT=3.4~4.5V, Io=50mA, Vo=1.8V f=100Hz, Vin=200mVp-p, Vo=1.2V Io=50mA, BW=20Hz~20kHz Vo=0V Output Current Dropout Voltage Load stability Input voltage stability Ripple Rejection Ratio Short circuit current limit Discharge resister at OFF 【Regulator (LDO2)】 Io1 Vsat1 ΔVo11 ΔVo12 RR1 Ilim1 ROFF1 Output voltage Vo2 Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Vo=2.5V VBAT=2.5V, Io=200mA, Vo=2.8V Io=1~200mA, Vo=2.5V VBAT=3.4~4.5V, Io=50mA, Vo=2.5V f=100Hz, Vin=200mVp-p, Vo=1.2V Io=50mA, BW=20Hz~20kHz Vo=0V Output Current Dropout Voltage Load stability Input voltage stability Ripple Rejection Ratio Short circuit current limit Discharge resister at OFF Io2 Vsat2 Δvo21 Δvo22 RR2 Ilim2 ROFF2 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 3/28 2011.04 - Rev.A BD6085GUL ●Electrical Characteristics (Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V) Limits Parameter Symbol Unit Min. Typ. Max. 【Regulator (LDO3)】 1.164 1.261 1.455 1.552 1.746 2.134 2.328 2.425 2.522 2.619 2.716 2.813 2.910 3.007 3.104 3.201 1.164 1.261 1.455 1.552 1.746 2.134 2.328 2.425 2.522 2.619 2.716 2.813 2.910 3.007 3.104 3.201 1.20 1.30 1.50 1.60 1.80 2.20 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 0.2 10 10 65 200 1.0 1.20 1.30 1.50 1.60 1.80 2.20 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 0.2 10 10 65 200 1.0 1.236 1.339 1.545 1.648 1.854 2.266 2.472 2.575 2.678 2.781 2.884 2.987 3.090 3.193 3.296 3.399 150 0.3 60 60 400 1.5 1.236 1.339 1.545 1.648 1.854 2.266 2.472 2.575 2.678 2.781 2.884 2.987 3.090 3.193 3.296 3.399 150 0.3 60 60 400 1.5 V V V V V V V V V V V V V V V V mA V mV mV dB mA kΩ V V V V V V V V V V V V V V V V mA V mV mV dB mA kΩ Technical Note Condition Output voltage Vo3 Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Vo=1.8V VBAT=2.5V, Io=150mA, Vo=2.8V Io=1~150mA, Vo=1.8V VBAT=3.4~4.5V, Io=50mA, Vo=1.8V f=100Hz, Vin=200mVp-p, Vo=1.2V Io=50mA, BW=20Hz~20kHz Vo=0V Output Current Dropout Voltage Load stability Input voltage stability Ripple Rejection Ratio Short circuit current limit Discharge resister at OFF 【Regulator (LDO4)】 Io3 Vsat3 Δvo31 Δvo32 RR3 Ilim3 ROFF3 Output voltage Vo4 Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Io=50mA Vo=2.8V VBAT=2.5V, Io=150mA, Vo=2.8V Io=1~150mA, Vo=2.8V VBAT=3.4~4.5V, Io=50mA, Vo=2.8V f=100Hz, Vin=200mVp-p, Vo=1.2V Io=50mA, BW=20Hz~20kHz Vo=0V Output Current Dropout Voltage Load stability Input voltage stability Ripple Rejection Ratio Short circuit current limit Discharge resister at OFF Io4 Vsat4 Δvo41 Δvo42 RR4 Ilim4 ROFF4 www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 4/28 2011.04 - Rev.A BD6085GUL ●Block Diagram / Application Circuit example Technical Note 1μF (6.3V) 1μF (6.3V) 1μF (6.3V) C1N C2N C1P C2P C3N VBAT VBATCP VBAT1 VBAT2 VBATLDO1 VBATLDO2 LED1~4 10µF C3P Charge Pump x1 / x1.33 / x1.5 / x2 Charge Pump Mode Control OVP LED terminal voltage feedback VOUT 2.2μF (6.3V) Back Light VIO RESETB SCL LED5 I/O Level Shift I C interface Digital Control TSD 2 LED6 Flash SDA LED7 IREF To LED1~7 VBATLDO2 VBATLDO1 VREF LDO1 Vo selectable Io=200mA LDO1O 1μF LDO2 Vo selectable Io=200mA LDO2O 1μF LDO3 Vo selectable Io=150mA LDO3O 1μF LDO4 Vo selectable Io=150mA LDO4O 1μF CPGND FLGND T3 (Open) Fig.1 Block Diagram / Application Circuit example 1 Back Light (4ch) + Flash (total 360mA) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. T4 (Open) WGND T1 AGND T2 5/28 2011.04 - Rev.A BD6085GUL Technical Note 1μF (6.3V) 1μF (6.3V) 1μF (6.3V) C1N C2N C1P C2P C3N VBAT VBATCP VBAT1 VBAT2 VBATLDO1 VBATLDO2 LED1~6 10µF C3P Charge Pump x1 / x1.33 / x1.5 / x2 Charge Pump Mode Control OVP LED terminal voltage feedback VOUT 2.2μF (6.3V) Back Light Main only or Main + Sub VIO RESETB SCL I/O Level Shift I2C interface Digital Control TSD LED7 SDA Flash IREF To LED1~7 VBATLDO2 VBATLDO1 VREF LDO1 Vo selectable Io=200mA LDO1O 1μF LDO2 Vo selectable Io=200mA LDO2O 1μF LDO3 Vo selectable Io=150mA LDO3O 1μF LDO4 Vo selectable Io=150mA LDO4O 1μF CPGND FLGND T3 (Open) Fig.2 Block Diagram / Application Circuit example 2 Back Light (6ch) + Flash (max 120mA) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. T4 (Open) WGND T1 AGND T2 6/28 2011.04 - Rev.A BD6085GUL ●Pin Arrangement ［Bottom View］ Technical Note F T4 VBATLDO2 VBAT1 AGND VBATLDO1 T3 E LDO2O LDO4O VBAT2 LDO3O LDO1O VIO D LED6 LED7 RESETB SCL SDA C1N C LED5 FLGND CPGND C2N C1P B LED4 WGND LED2 VOUT C2P VBATCP A T1 LED3 LED1 C3N C3P T2 1 2 3 4 5 6 Index Total: 35balls www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 7/28 2011.04 - Rev.A BD6085GUL ●Package VCSP50L3 SIZE : 3.30mm×3.30mm A ball pitch : 0.5mm Height : 0.55mm max Technical Note BD6085 Lot No. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 8/28 2011.04 - Rev.A BD6085GUL ●Pin Functions No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Ball No. B6 F3 E3 F5 F2 A1 A6 F6 F1 E6 D3 D5 D4 C4 F4 B2 C2 D6 C6 C5 B5 A4 A5 B4 E5 E1 E4 E2 A3 B3 A2 B1 C1 D1 D2 Pin Name VBATCP VBAT1 VBAT2 VBATLDO1 VBATLDO2 T1 T2 T3 T4 VIO RESETB SDA SCL CPGND AGND WGND FLGND C1N C1P C2N C2P C3N C3P VOUT LDO1O LDO2O LDO3O LDO4O LED1 LED2 LED3 LED4 LED5 LED6 LED7 I/O I I O O I I/O I I/O I/O I/O I/O I/O I/O O O O O O I I I I I I I ESD Diode For For Power Ground GND GND GND GND GND VBAT GND VBAT GND VBAT GND VBAT GND VBAT GND VBAT GND VBAT GND VBAT GND VBAT VBAT VBAT VBAT VBAT GND GND VBAT GND GND VBAT GND GND GND VBAT GND VBAT GND VBAT GND VBAT GND GND GND GND GND GND GND GND Functions Technical Note Equivalent Circuit A A A A A S S M N C H I H B B B B F G F G F G A Q Q Q Q E E E E E E E Power supply for charge pump Power supply Power supply Power supply for LDO Power supply for LDO Test Input Pin (short to Ground) Test Input Pin (short to Ground) Test Output Pin (Open) Test Output Pin (Open) Power supply for I/O and Digital Reset input (L: reset, H: reset cancel) I2C data input / output I2C clock input Ground Ground Ground Ground Charge Pump capacitor is connected Charge Pump capacitor is connected Charge Pump capacitor is connected Charge Pump capacitor is connected Charge Pump capacitor is connected Charge Pump capacitor is connected Charge Pump output pin LDO1 output pin LDO2 output pin LDO3 output pin LDO4 output pin LED cathode connection 1 (for Back Light) LED cathode connection 2 (for Back Light) LED cathode connection 3 (for Back Light) LED cathode connection 4 (for Back Light) LED cathode connection 5 (for Back Light or Flash) LED cathode connection 6 (for Back Light or Flash) LED cathode connection 7 (for Back Light or Flash) ※The LED terminal that isn't used is to short-circuit to the ground. But, the setup of a register concerned with LED that isn't used is prohibited. Total: 35Pin www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 9/28 2011.04 - Rev.A BD6085GUL ●Equivalent Circuit Technical Note A B VBAT C VBAT D VBAT E F VBAT G H VBAT VIO I VBAT VIO J VBAT VIO K VIO VIO L VBAT VBAT M VBAT VBAT N VBAT O VBAT P VBAT VBAT Q VBAT VBAT R VBAT VBAT S VBAT VBAT T VIO VBAT www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 10/28 2011.04 - Rev.A BD6085GUL ●I2C BUS format The writing/reading operation is based on the I2C slave standard. ・Slave address A7 A6 1 1 Technical Note A5 1 A4 0 A3 1 A2 1 A1 0 R/W 1/0 ・Bit Transfer SCL transfers 1-bit data during H. SCL cannot change signal of SDA during H at the time of bit transfer. If SDA changes while SCL is H, START conditions or STOP conditions will occur and it will be interpreted as a control signal. SDA SCL SDA a state of stability： SDA It can change Data are effective ・START and STOP condition When SDA and SCL are H, data is not transferred on the I2C- bus. This condition indicates, if SDA changes from H to L while SCL has been H, it will become START (S) conditions, and an access start, if SDA changes from L to H while SCL has been H, it will become STOP (P) conditions and an access end. SDA SCL S START condition P STOP condition ・Acknowledge It transfers data 8 bits each after the occurrence of START condition. A transmitter opens SDA after transfer 8bits data, and a receiver returns the acknowledge signal by setting SDA to L. DATA OUTPUT BY TRANSMITTER not acknowledge DATA OUTPUT BY RECEIVER acknowledge SCL 1 2 8 clock pulse for acknowledgement 9 S START condition www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 11/28 2011.04 - Rev.A BD6085GUL Technical Note ・Writing protocol A register address is transferred by the next 1 byte that transferred the slave address and the write-in command. The 3rd byte writes data in the internal register written in by the 2nd byte, and after 4th byte or, the increment of register address is carried out automatically. However, when a register address turns into the last address, it is set to 00h by the next transmission. After the transmission end, the increment of the address is carried out. *1 *1 S X X X X X X X 0 A A 7 A 6 A 5 A 4 A 3 A 2 A 1 A 0 A D7 D6 D5 D4 D3 D2 D1 D0 A slave address R /W=0(write) from master to slave from slave to master register address D ATA D7 D 6 D 5 D 4 D 3 D 2 D1 D0 A P DATA register address increment A =acknowledge(SD A LOW) A =not acknowledge(SDA HIGH) S=START condition P=STOP condition *1: Write Timing register address increment ・Reading protocol It reads from the next byte after writing a slave address and R/W bit. The register to read considers as the following address accessed at the end, and the data of the address that carried out the increment is read after it. If an address turns into the last address, the next byte will read out 00h. After the transmission end, the increment of the address is carried out. SXXXXXXX slave address R/W=1(read) 1 A D7 D6 D5 D4 D3 D2 D1 D0 A DATA register address increment A=acknowledge(SDA LOW) A=not acknowledge(SDA HIGH) S=START condition P=STOP condition D7 D6 D5 D4 D3 D2 D1 D0 A P DATA register address increment from master to slave from slave to master ・Multiple reading protocols After specifying an internal address, it reads by repeated START condition and changing the data transfer direction. The data of the address that carried out the increment is read after it. If an address turns into the last address, the next byte will read out 00h. After the transmission end, the increment of the address is carried out. S X X X X X X X 0 A A7 A6 A5 A4 A3 A2 A1 A0 A Sr X X X X X X X 1 A slave address R/W=0(write) register address slave address R/W=1(read) D7 D6 D5 D4 D3D2 D1D0 A DATA register address increment from master to slave from slave to master D7D6 D5D4D3D2D1D0 A P DATA register address increment A=acknowledge(SDA LOW) A=not acknowledge(SDA HIGH) S=START condition P=STOP condition Sr=repeated START condition As for reading protocol and multiple reading protocols, please do A(not acknowledge) after doing the final reading operation. It stops with read when ending by A(acknowledge), and SDA stops in the state of Low when the reading data of that time is 0. However, this state returns usually when SCL is moved, data is read, and A(not acknowledge) is done. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 12/28 2011.04 - Rev.A BD6085GUL ●Timing diagram SDA Technical Note t BUF t LOW t SU;DAT t HD;STA SCL t SU;STO P S t HD;STA S t HD;DAT t HIGH Sr t SU;STA ●Electrical Characteristics(Unless otherwise specified, Ta=25 ℃, VBAT=3.6V, VIO=1.8V) Standard-mode Parameter Symbol Min. Typ. Max. Min. 【I2C BUS format】 SCL clock frequency fSCL 0 100 0 LOW period of the SCL clock tLOW 4.7 1.3 HIGH period of the SCL clock tHIGH 4.0 0.6 Hold time (repeated) START condition After this period, the first clock is generated Fast-mode Typ. - Max. 400 0.9 - Unit kHz μs μs μs μs μs ns μs μs tHD;STA tSU;STA tHD;DAT tSU;DAT tSU;STO tBUF 4.0 4.7 0 250 4.0 4.7 - 3.45 - 0.6 0.6 0 100 0.6 1.3 Set-up time for a repeated START condition Data hold time Data set-up time Set-up time for STOP condition Bus free time between a STOP and START condition www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 13/28 2011.04 - Rev.A BD6085GUL ●Register List Address Register data D7 LDO2VSEL3 LDO4VSEL3 D6 GRPSET2 LDO4EN LDO2VSEL2 LDO4VSEL2 D5 GRPSET1 LDO3EN FLASHEN LDO2VSEL1 LDO4VSEL1 D4 GRPSET0 LDO2EN IMLED4 ISLED4 IFLLED4 LDO2VSEL0 LDO4VSEL0 D3 LDO1EN IMLED3 ISLED3 IFLLED3 LDO1VSEL3 LDO3VSEL3 D2 FLLEDEN IMLED2 ISLED2 IFLLED2 LDO1VSEL2 LDO3VSEL2 D1 SLEDEN IMLED1 ISLED1 IFLLED1 LDO1VSEL1 LDO3VSEL1 D0 SFTRST MLEDEN IMLED0 ISLED0 IFLLED0 LDO1VSEL0 LDO3VSEL0 Technical Note Function Software Reset LED Lighting group Setting Enable Control Main LED Current Setting Sub LED Current Setting Flash LED Current Setting Flash mode Setting LDO1 Vout Control LDO2 Vout Control LDO3 Vout Control LDO4 Vout Control 00h 01h 02h 03h 04h 05h 06h Input "0” for "-". Prohibit to accessing the address that isn’t mentioned. ●Register Map Address 00h < Software Reset, LED Lighting group Setting > Address 00h Initial Value R/W R/W 00h Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 SFTRST 0 GRPSET2 GRPSET1 GRPSET0 0 0 0 Bit7 : (Not used) Bit [6:4] : GRPSET [2:0] (Main group) (Sub group) (Flash group) “000” : “001” : “010” : “011” : “100” : “101” : “110” : “111” : Bit [3:1] : (Not used) Bit0 : LED1~4 LED1~4 LED1~4 LED1~4 LED1~5 LED1~5 LED1~6 LED1~6 --LED5 LED5~6 LED5 LED6 ------- LED5~7 LED6~7 LED7 LED7 LED7 LED6~7 LED7 LED7 SFTRST “0” : Reset cancel “1” : Reset (All register initializing) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 14/28 2011.04 - Rev.A BD6085GUL Technical Note Address 01h < Enable Control > Address 01h Initial Value R/W R/W 00h Bit7 Bit6 LDO4EN 0 Bit5 LDO3EN 0 Bit4 LDO2EN 0 Bit3 LDO1EN 0 Bit2 FLLEDEN 0 Bit1 SLEDEN 0 Bit0 MLEDEN 0 Bit7 : Bit6 : (Not used) LDO4EN “0” : LDO4 OFF “1” : LDO4 ON LDO3EN “0” : LDO3 OFF “1” : LDO3 ON LDO2EN “0” : LDO2 OFF “1” : LDO2 ON LDO1EN “0” : LDO1 OFF “1” : LDO1 ON FLLEDEN “0” : Flash LED OFF “1” : Flash LED ON SLEDEN “0” : Sub LED OFF “1” : Sub LED ON MLEDEN “0” : Main LED OFF “1” : Main LED ON Bit5 : Bit4 : Bit3 : Bit2 : Bit1 : Bit0 : www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 15/28 2011.04 - Rev.A BD6085GUL Technical Note Address 02h < Main LED Current Setting > Address 02h Initial Value R/W R/W 00h Bit7 Bit6 Bit5 Bit4 IMLED4 0 Bit3 IMLED3 0 Bit2 IMLED2 0 Bit1 IMLED1 0 Bit0 IMLED0 0 Bit[7:5] : (Not used) Bit[4:0] : IMLED [4:0] “00000” : “00001” : “00010” : “00011” : “00100” : “00101” : “00110” : “00111” : “01000” : “01001” : “01010” : “01011” : “01100” : “01101” : “01110” : “01111” : “10000” : “10001” : “10010” : “10011” : “10100” : “10101” : “10110” : “10111” : “11000” : “11001” : “11010” : “11011” : “11100” : “11101” : “11110” : “11111” : 0.9375 mA 1.875 mA 2.8125 mA 3.75 mA 4.6875 mA 5.625 mA 6.5625 mA 7.5 mA 8.4375 mA 9.375 mA 10.3125 mA 11.25 mA 12.1875 mA 13.125 mA 14.0625 mA 15 mA 15.9375 mA 16.875 mA 17.8125 mA 18.75 mA 19.6875 mA 20.625 mA 21.5625 mA 22.5 mA 23.4375 mA 24.375 mA 25.3125 mA 26.25 mA 27.1875 mA 28.125 mA 29.0625 mA 30 mA (Initial value) * LED Current : 30 x 1/32 mA Step www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 16/28 2011.04 - Rev.A BD6085GUL Technical Note Address 03h < Sub LED Current Setting > Address 03h Initial Value R/W R/W 00h Bit7 Bit6 Bit5 Bit4 ISLED4 0 Bit3 ISLED3 0 Bit2 ISLED2 0 Bit1 ISLED1 0 Bit0 ISLED0 0 Bit[7:5] : (Not used) Bit[4:0] : ISLED [4:0] “00000” : “00001” : “00010” : “00011” : “00100” : “00101” : “00110” : “00111” : “01000” : “01001” : “01010” : “01011” : “01100” : “01101” : “01110” : “01111” : “10000” : “10001” : “10010” : “10011” : “10100” : “10101” : “10110” : “10111” : “11000” : “11001” : “11010” : “11011” : “11100” : “11101” : “11110” : “11111” : 0.9375 mA 1.875 mA 2.8125 mA 3.75 mA 4.6875 mA 5.625 mA 6.5625 mA 7.5 mA 8.4375 mA 9.375 mA 10.3125 mA 11.25 mA 12.1875 mA 13.125 mA 14.0625 mA 15 mA 15.9375 mA 16.875 mA 17.8125 mA 18.75 mA 19.6875 mA 20.625 mA 21.5625 mA 22.5 mA 23.4375 mA 24.375 mA 25.3125 mA 26.25 mA 27.1875 mA 28.125 mA 29.0625 mA 30 mA (Initial value) * LED Current : 30 x 1/32 mA Step www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 17/28 2011.04 - Rev.A BD6085GUL Technical Note Address 04h < Flash LED Current Setting, Flash mode Setting > Address 04h Initial Value R/W R/W 00h Bit7 Bit6 Bit5 FLASHEN 0 Bit4 IFLLED4 0 Bit3 IFLLED3 0 Bit2 IFLLED2 0 Bit1 IFLLED1 0 Bit0 IFLLED0 0 Bit[7:6] : (Not used) Bit5 : FLASHEN “0” : Flash mode OFF “1” : Flash mode ON (x4 normal mode) Bit[4:0] : IFLLED [4:0] (At FLASHEN=0) (At FLASHEN=1) “00000” : “00001” : “00010” : “00011” : “00100” : “00101” : “00110” : “00111” : “01000” : “01001” : “01010” : “01011” : “01100” : “01101” : “01110” : “01111” : “10000” : “10001” : “10010” : “10011” : “10100” : “10101” : “10110” : “10111” : “11000” : “11001” : “11010” : “11011” : “11100” : “11101” : “11110” : “11111” : 0.9375 mA, 1.875 mA, 2.8125 mA, 3.75 mA, 4.6875 mA, 5.625 mA, 6.5625 mA, 7.5 mA, 8.4375 mA, 9.375 mA, 10.3125 mA, 11.25 mA, 12.1875 mA, 13.125 mA, 14.0625 mA, 15 mA, 15.9375 mA, 16.875 mA, 17.8125 mA, 18.75 mA, 19.6875 mA, 20.625 mA, 21.5625 mA, 22.5 mA, 23.4375 mA, 24.375 mA, 25.3125 mA, 26.25 mA, 27.1875 mA. 28.125 mA, 29.0625 mA, 30 mA, 3.75 mA 7.5 mA 11.25 mA 15 mA 18.75 mA 22.5 mA 26.25 mA 30 mA 33.75 mA 37.5 mA 41.25 mA 45 mA 48.75 mA 52.5 mA 56.25 mA 60 mA 63.75 mA 67.5 mA 71.25 mA 75 mA 78.75 mA 82.5 mA 86.25 mA 90 mA 93.75 mA 97.5 mA 101.25 mA 105 mA 108.75 mA 112.5 mA 116.25 mA 120 mA (Initial value) * LED Current : 30 x 1/32 mA Step (at FLASHEN=0), 120 x 1/32 mA Step (at FLASHEN=1) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 18/28 2011.04 - Rev.A BD6085GUL Technical Note Address 05h < LDO1 Vout Control, LDO2 Vout Control > Address 05h Initial Value R/W R/W 74h Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 LDO2VSEL3 LDO2VSEL2 LDO2VSEL1 LDO2VSEL0 LDO1VSEL3 LDO1VSEL2 LDO1VSEL1 LDO1VSEL0 0 1 1 1 0 1 0 0 Bit[7:4] : LDO2VSEL [3:0] “0000” : 1.20 V “0001” : 1.30 V “0010” : 1.50 V “0011” : 1.60 V “0100” : 1.80 V “0101” : 2.20 V “0110” : 2.40 V “0111” : 2.50 V (Initial value) “1000” : 2.60 V “1001” : 2.70 V “1010” : 2.80 V “1011” : 2.90 V “1100” : 3.00 V “1101” : 3.10 V “1110” : 3.20 V “1111” : 3.30 V Bit[3:0] : LDO1VSEL [3:0] “0000” : 1.20 V “0001” : 1.30 V “0010” : 1.50 V “0011” : 1.60 V “0100” : 1.80 V (Initial value) “0101” : 2.20 V “0110” : 2.40 V “0111” : 2.50 V “1000” : 2.60 V “1001” : 2.70 V “1010” : 2.80 V “1011” : 2.90 V “1100” : 3.00 V “1101” : 3.10 V “1110” : 3.20 V “1111” : 3.30 V www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 19/28 2011.04 - Rev.A BD6085GUL Technical Note Address 06h < LDO3 Vout Control, LDO4 Vout Control > Address 06h Initial Value R/W R/W A4h Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 LDO4VSEL3 LDO4VSEL2 LDO4VSEL1 LDO4VSEL0 LDO3VSEL3 LDO3VSEL2 LDO3VSEL1 LDO3VSEL0 1 0 1 0 0 1 0 0 Bit[7:4] : LDO4VSEL [3:0] “0000” : 1.20 V “0001” : 1.30 V “0010” : 1.50 V “0011” : 1.60 V “0100” : 1.80 V “0101” : 2.20 V “0110” : 2.40 V “0111” : 2.50 V “1000” : 2.60 V “1001” : 2.70 V “1010” : 2.80 V (Initial value) “1011” : 2.90 V “1100” : 3.00 V “1101” : 3.10 V “1110” : 3.20 V “1111” : 3.30 V Bit[3:0] : LDO3VSEL [3:0] “0000” : 1.20 V “0001” : 1.30 V “0010” : 1.50 V “0011” : 1.60 V “0100” : 1.80 V (Initial value) “0101” : 2.20 V “0110” : 2.40 V “0111” : 2.50 V “1000” : 2.60 V “1001” : 2.70 V “1010” : 2.80 V “1011” : 2.90 V “1100” : 3.00 V “1101” : 3.10 V “1110” : 3.20 V “1111” : 3.30 V www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 20/28 2011.04 - Rev.A BD6085GUL ●Explanation for operate 1. Reset There are two kinds of reset, software reset and hardware reset. (1) Software reset ・All the registers are initialized more than making a register (SFTRST) setup "1". ・The register of software resetting is an automatic return (Auto Return 0). Technical Note (2) Hardware reset ・It shifts to hardware reset by changing RESETB pin “H” → “L”. ・The condition of all the registers under hardware reset pin is returned to the initial value, and it stops accepting all address. ・It’s possible to release from a state of hardware reset by changing RESETB pin “L” → “H”. ・RESETB pin has delay circuit. It doesn’t recognize as hardware reset in “L” period under 5μs. (3) Reset Sequence ・When hardware reset was done during software reset, software reset is canceled when hardware reset is canceled. (Because the initial value of software reset is “0”) 2. Thermal shutdown The blocks which thermal shutdown function is effective in the following. Charge pump LED Driver LDO1, LDO2, LDO3, LDO4 A thermal shutdown function works in about 190℃. Detection temperature has a hysteresis, and detection release temperature is about 170℃. (Design reference value) 3. Charge Pump for LED driver Charge Pump block is designed for the power supply for LED driver. It has the x1.0/x1.33/x1.5/x2.0 mode. it changes to the most suitable mode automatically by Vf of LED and the battery voltage. It has the mode of x1.33 and it can be higher efficiency than traditional. Start Charge Pump circuit operates when any LED turns ON. Soft start When the start of the Charge Pump circuit is done, it has the soft start function to prevent a rush current. V BAT T VBATON V IO T VIOON=min 0.1ms RESETB T RSTB=min 0.1ms T RST=min 0ms E N (*1) T SOFT V OUT T VIOOFF=min 1ms T VBATOFF LED Current (*1) An EN signal in the upper figure means the following; “EN is high” = Any LED turns ON But if Ta >TSD, EN Signal doesn’t become effective. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 21/28 2011.04 - Rev.A BD6085GUL Technical Note Charge Pump Mode transition The transition of boost multiple transits automatically by Vf of LED and the battery voltage. STANDBY ALL off Any LED on 1 ○ Ta2.3V(typ) SOFT CP x1.0 mode After “VOUT>1.5V(typ)” detected, 142us(typ) wait X1.0 CP x1.0 mode m ode down=”H” mode up=”H” X1.33 CP x1.33 mode mode down=”H” mode up=”H” X1.5 CP x1.5mode mode down=”H” mode up=”H” X2.0 All LED OFF RESET CP x2.0mode BD6085GUL changes the four charge pump movement mode automatically to realize low consumption power. < Mode Up > A LED terminal voltage is monitored, and the movement mode is changed to ×1→×1.33, ×1.33→×1.5 and ×1.5→×2 automatically when a LED terminal voltage is lower than 0.2V (typ). At this time, the maximum output voltage of the charge pump is restricted to 5.1V (typ). < Mode Down > The rise in the battery voltage, the off control of LED lighting and the data writing to the address 02h,03h,04h (LED Current Setting) is monitored, and the movement mode is changed to ×2→×1.5→×1.33→×1 automatically at FLASHEN (Address 04h) =“0”. This mode down movement lasts until a mode up movement happens. At FLASHEN=“1”, the mode down doesn't happen. The thresholds of rise in a battery voltage are 2.9V, 3.3V, 3.7V and 4.1V (typ). And, as for the off control of LED lighting, it is shown that MLEDEN, SLEDEN and FLLEDEN (Address 01h) and FLASHEN (Address 04h) transited in “1”→“0”. Over Voltage protection / Over Current protection Charge Pump circuit output (VOUT) is equipped with the over-voltage protection and the over current protection function. A VOUT over-voltage detection voltage is about 5.5V(typ). (VOUT at the time of rise in a voltage) A detection voltage has a hysteresis, and a detection release voltage is about 5.1V(typ). And, when VOUT output short to ground, input current of the battery terminal is limited by an over current protection function. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 22/28 2011.04 - Rev.A BD6085GUL Technical Note 4. LED Driver LED current value setting (for Main/Sub) Internal circuit fixes maximum current value of LED. LED current is maximum 30mA/ch. LED current value setting (for Flash) Internal circuit fixes maximum current value of LED. When FLASHEN (Address 04h)=0, LED current is maximum 30mA/ch. (Normal mode) When FLASHEN (Address 04h)=1, LED current change to x4 of Normal mode. (Flash mode) At Normal mode, it can use for LCD Backlight or Torch mode of Flash. At Flash mode, it can use for LED Flash. The number of LED Lighting The number of lighting for Main/Sub/Flash LED can be set up grouping by the register GRPSET* (Address 00h). The setting of the number of lighting is as the following. The grouping of LED (Main/Sub/Flash) is independently controlled by register MLEDEN, SLEDEN, FLLEDEN (Address 01h). Grouping LED1 LED2 LED3 LED4 LED5 LED6 setting (0,0,0) Main Main Main Main Flash Flash (0,0,1) Main Main Main Main Sub Flash (0,1,0) Main Main Main Main Sub Sub (0,1,1) Main Main Main Main Sub (1,0,0) Main Main Main Main Main Sub (1,0,1) Main Main Main Main Main Flash (1,1,0) Main Main Main Main Main Main (1,1,1) Main Main Main Main Main Main Grouping setting (*,*,*) means (“GRPSET2”,”GRPSET1”,”GRPSET0”). The change of the Grouping setting with turning it on is prohibited. The LED terminal that isn’t used must be connected to the ground. LED7 Flash Flash Flash Flash Flash Flash Flash Flash Main/Sub/Flash 4/0/3 4/1/2 4/2/1 4/1/1 5/1/1 5/0/2 6/0/1 6/0/1 Normal mode/Flash mode Normal mode and Flash mode change as the figure of the follow. ILED is set by the register. FLLEDEN FLASHEN 4×ILED LED current ILED Normal mode Flash mode Normal mode www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 23/28 2011.04 - Rev.A BD6085GUL Technical Note 5. I/O When the RESETB pin is Low, the input buffers (SDA and SCL) are disable for the Low consumption power. VBAT VIO SCL (SDA) EN RESETB=L, Output “H” LOGIC Level Shift RESETB 6. About the start of LDO1~LDO4 It must start as follows. VBAT TVBATON VIO TVIOON=min 0.1ms RESETB TRSTB=min 0.1ms LDO1EN or LDO2EN or LDO3EN or LDO4EN TRISE = max 1ms LDO1O or LDO2O or LDO3O or LDO4O (LDO output) TRST=min 0ms TVIOOFF=min 1ms TVBATOFF VBAT ON (Enough rise up) → VIO ON (Enough rise up) → Reset release → LDO ON (Register access acceptable) LDO OFF → Reset → VIO OFF (Enough fall down) → VBAT OFF 7. About the terminal management of the function that isn't used Set up the terminal that isn't used as follows. The LED terminal which isn't used : Short to ground Don't do the control concerned with this terminal. T1, T2 : Short to ground T3, T4 : Open www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 24/28 2011.04 - Rev.A BD6085GUL ●PCB pattern of the Power dissipation measuring board Technical Note 1st layer(component) 2nd layer 3rd layer 4th layer 5th layer 6th layer 7th layer 8th layer(solder) www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 25/28 2011.04 - Rev.A BD6085GUL Technical Note ●Cautions on use (1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exceeding the absolute maximum ratings is assumed, consideration should be given to take physical safety measures including the use of fuses, etc. (2) Power supply and ground line Design PCB pattern to provide low impedance for the wiring between the power supply and the ground lines. Pay attention to the interference by common impedance of layout pattern when there are plural power supplies and ground lines. Especially, when there are ground pattern for small signal and ground pattern for large current included the external circuits, please separate each ground pattern. Furthermore, for all power supply pins to ICs, mount a capacitor between the power supply and the ground pin. At the same time, in order to use a capacitor, thoroughly check to be sure the characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature, thus determining the constant. (3) Ground voltage Make setting of the potential of the ground pin so that it will be maintained at the minimum in any operating state. Furthermore, check to be sure no pins are at a potential lower than the ground voltage including an actual electric transient. (4) Short circuit between pins and erroneous mounting In order to mount ICs on a set PCB, pay thorough attention to the direction and offset of the ICs. Erroneous mounting can break down the ICs. Furthermore, if a short circuit occurs due to foreign matters entering between pins or between the pin and the power supply or the ground pin, the ICs can break down. (5) Operation in strong electromagnetic field Be noted that using ICs in the strong electromagnetic field can malfunction them. (6) Input pins In terms of the construction of IC, parasitic elements are inevitably formed in relation to potential. The operation of the parasitic element can cause interference with circuit operation, thus resulting in a malfunction and then breakdown of the input pin. Therefore, pay thorough attention not to handle the input pins, such as to apply to the input pins a voltage lower than the ground respectively, so that any parasitic element will operate. Furthermore, do not apply a voltage to the input pins when no power supply voltage is applied to the IC. In addition, even if the power supply voltage is applied, apply to the input pins a voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics. (7) External capacitor In order to use a ceramic capacitor as the external capacitor, determine the constant with consideration given to a degradation in the nominal capacitance due to DC bias and changes in the capacitance due to temperature, etc. (8) Thermal shutdown circuit (TSD) This LSI builds in a thermal shutdown (TSD)circuit. When junction temperatures become detection temperature or higher, the thermal shutdown circuit operates and turns a switch OFF. The thermal shutdown circuit, which is aimed at isolating the LSI from thermal runaway as much as possible, is not aimed at the protection or guarantee of the LSI. Therefore, do not continuously use the LSI with this circuit operating or use the LSI assuming its operation. (9) Thermal design Perform thermal design in which there are adequate margins by taking into account the permissible dissipation (Pd)in actual states of use. (10) LDO Use each output of LDO by the independence. Don’t use under the condition that each output is short-circuited because it has the possibility that an operation becomes unstable. (11) About the pin for the test, the un-use pin Prevent a problem from being in the pin for the test and the un-use pin under the state of actual use. Please refer to a function manual and an application notebook. And, as for the pin that doesn't specially have an explanation, ask our company person in charge. (12) About the rush current For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of wiring. (13) About the function description or application note or more. The function description and the application notebook are the design materials to design a set. So, the contents of the materials aren't always guaranteed. Please design application by having fully examination and evaluation include the external elements. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 26/28 2011.04 - Rev.A BD6085GUL ●Power dissipation (On the ROHM’s standard board) Technical Note 1.6 1.4 1325mW 1.2 Power Dissipation Pd （W) 1.0 0.8 0.6 0.4 0.2 0.0 0 25 50 75 Ta（℃） 100 125 150 Information of the ROHM’s standard board Material : glass-epoxy Size : Refer to after page. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 27/28 2011.04 - Rev.A BD6085GUL ●Ordering part number Technical Note B D 6 Part No. 6085 0 8 5 G U L - E 2 Part No. Package GUL : VCSP50L3 Packaging and forming specification E2: Embossed tape and reel VCSP50L3(BD6085GUL) 1PIN MARK 3.3± 0.1 Tape Quantity 0.55MAX 0.1± 0.05 Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 3.3± 0.1 S Direction of feed ( reel on the left hand and you pull out the tape on the right hand ) 35- φ 0.25± 0.05 0.05 A B (φ0.15)INDEX POST F E D C B A 123456 A B P=0.5 × 5 0.4± 0.1 0.08 S 0.4± 0.1 P=0.5 × 5 1pin Direction of feed (Unit : mm) Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. 28/28 2011.04 - Rev.A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com © 2011 ROHM Co., Ltd. All rights reserved. R1120A