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r08ds0037ej0100 rev.1.00 p age 1 of 10 aug 03, 2011 preliminary ph5551a2na1 - e4 data sheet ambient illuminance sensor description the ph5551a2na1 - e4 is a digital ambient illuminance sensor for i 2 c bus interface s and includes a 16 - bit ad converter . this product has spectral characteristics close to human eye sensitivity and outputs digital signals corresponding to the ambient brightness. the ph5551a2na1 - e4 can be used to improv e the performance and reduce the power consumption of d igital equipment such as fpd tv sets and mobile phone s , by enabling automatic brightness control and automatic switching on and off of lighting systems. features ? small and thin son package 2.55 x 1.56 x 0.55 mm ? built - in 16 - bit ad converter ? i 2 c bus interfa ce ? spectral characteristics close to human eye sensitivity peak sensitivity wavelength 560 nm typ. ? wide illuminance range 1 to 65 , 535 lx ? i 2 c slave address selectable 2 type s ? interrupt function ? pb - free applications ? fpd tv set s , d isplay s ? mobile phone s , s m artphone s ? note book pc s , t ablet pc s ? dsc s , dvc s ? fa equipment s ? lighting system s , etc. r08ds0037ej0100 rev.1.00 aug 03, 2011
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 2 of 10 aug 03, 2011 package dimensions (unit: mm) p in no. terminal i/o function 1 v dd ? ? supply voltage 2 gnd ? gnd 3 addr_sel i slave address (2 addresses selectable) 4 scl i i 2 c bu s scl 5 int o interrupt 6 sda io i 2 c bus sda
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 3 of 10 aug 03, 2011 absolute maximum ratings (t a = 25 ? parameter symbol ratings unit supply voltage v dd 4.5 v power dissipation *1 p d 135 mw operating temperature t a ? 30 to +85 ? c storage temper ature t stg ? 40 to +100 ? c note: *1. mounted on glass epoxy board (18 mm ? 13 mm ? t 0.8 mm) recommended operating conditions parameter symbol min. typ. max. unit supply voltage v dd 2.4 3.0 3.6 v electro - optical characteristics (t a = 25 ? dd = 3.0 v, unless otherwise specified) parameter symbol conditions min. typ. max. unit supply current 1 i dd1 ev = 100 lx *1 130 290 ? a supply current 2 i dd2 ev = 100 lx *1 , p ower - down 1 ? a dark sensor out put ? ev = 0 lx 4 count peak sensitivity wavelength ? p 560 nm h - resolution mode resolution hrm 1 lx l - resolution mode resolution lrm 16 lx measurement time in h - resolution mode hrt 330 495 ms measurement time in l - resolution mode lrt 21 32 ms i 2 c scl clock frequency f scl 400 khz i 2 c bus free time t buf 1.3 ? s i 2 c hold time for start condition t hdsta 0.6 ? s i 2 c set - up time for start condition t susta 0.6 ? s i 2 c set - up time for stop condition t sust o 0.6 ? s i 2 c data hold time t hddat 0 0.9 s i 2 c data set - up time t sudat 100 ns i 2 c ?l? period of the scl clock t low 1.3 ? s i 2 c ? h ? period of the scl clock t high 0.6 ? s i 2 c ? l ? output voltage at sda v ol 0 0.4 v note: *1 fluorescent light
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 4 of 10 aug 03, 2011 i 2 c bus interface specif ication 1. i 2 c bus interface timing chart 2. slave address two slave addresses are selectable . the slave address is determined by the addr_sel pin . w hen addr_sel ? ? h , the address is 1100100 . w hen addr_sel ? l , the address is 0111001 . 3. i 2 c protocols (1) wr ite format (2) read format
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 5 of 10 aug 03, 2011 i nstruction code and register map 1. instruction code the i nstruction c ode is specified after the s lave a ddress. 0 1 0 1 0 0 0 0 default b it 7 b it 6 b it 5 bit 4 bit 3 bit 2 bit 1 bit 0 reg_sel ap_cnt adr_ptr pwr *1 n ote : *1 there are two pwr bit s , one in the i nstruction c ode and one in the c ontrol r e g ister. when one bit changes, the other bit also changes at the same time. (1 ) reg_sel : register selection for write or read operation code register address s electio n write o peration read o peration 00 control register control register control register 01 measurement register control register measurement register 10 measurement register ? ? measurement register (2) ap_cnt : address pointer c ontrol code description 00 the a ddress is fixed to the r egister a ddress specified by adr_ptr. 01 the r egister a ddress is incre mented when one item of data is written or read . 10 if these bits are read after being written, t he current r egister a ddress is output . (3) adr_ptr : r egister address specify the address of the register to be written or read by using these 3 bits. (4) pwr : power on/power down power o n/power d own (1: power on)
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 6 of 10 aug 03, 2011 2. register map the r egister m ap is specified after the i nstruction c ode . (1) control register (a) register address : 000 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 reserved swrst intclr int_cond rsltn int_en *2 pwr *1 n otes : *1 there are two pwr bit s , one in the i nstruction c ode and one in the c ontrol r e g ister. when one bit changes, the other bit also changes at the same time. *2 there are two int_en bits in the c ontrol r egister. when one bit changes, the other bit also changes at the same time. swrst : register reset (initial values are restored by setting th is bit to 1.) intclr : interrupt source clear ( 1 : cl ear i nterrupt source ) int_cond : interrupt result (00: no comparison with threshold value ; 01: measured lux is lower than lower - limit threshold value; 11: measured lux is higher than upper - limit thresh old value.) rsltn : resolution select ion (1 lx/16 lx) (0: 1 lx resolution; 1: 16 lx resolution) int_en : interrupt enable/disable (1: enable interrupts) pwr : power o n/power d own (1: power on) (b) register address : 001 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 lower interrupt generation threshold when interrupts are enabled - lower 8 bits (c) register address : 010 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 lower interrupt generation thresh old when interrupts are enabled - higher 8 bits (d) register address : 011 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 upper interrupt generation threshold when interrupts are enabled - lower 8 bits (e) register address : 100 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 upper interrupt generation threshold when interrupts are enabled - higher 8 bits
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 7 of 10 aug 03, 2011 (f) register address : 101 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 b it 2 bit 1 bit 0 reserved reserved reserved stop int_count int_at_rt int_en * 1 n ote : *1 there are two int_en bits in the c ontrol r egister. when one bit changes, the other bit also changes at the same time. stop : stops lux measurement after the curr ent adc cycle. the lux data measured last is retained. the adc enters standby mode.(1: stop) int_count : how many times the upper or lower threshold value is exceeded in succession before an interrupt signal is generated . (00: once; 01: 4 times; 10: 8 time s; 11: 16 times) int_at_rt : automatic restoration from i nterrupt enable/disable ( 0: processing a utomatically restored; 1: processing n ot automatically restored (restored after the interrupt is cancelled by the system) ) int_en : interrupt enable / disable ( 0: disable interrupts; 1: enable interrupts) 3 . measurement register (a) register address : 000 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 measurement of l ux - lower 8 bit s ( r ead o nly ) (b) register address : 001 0 0 0 0 0 0 0 0 default bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 measurement of l ux - higher 8 bit s ( r ead o nly )
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 8 of 10 aug 03, 2011 taping specifications (unit : mm )
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 9 of 10 aug 03, 2011 recommended mount pad dimensions ( u nit : mm )
ph5551a2na1 - e4 chapter title r08ds0037ej0100 rev.1.00 p age 10 of 10 aug 03, 2011 notes on handling 1. r ecommended reflow solderin g conditions (including infrared reflow, convection reflow, and infrared + convection reflow) (1) this product is dry - packed with desiccant in order to avoid moisture absorption. (2) after breaking the seal, reflow soldering must be done within 168 hours under the recommended temperature profile shown below. (3) i f more than 168 hours have passed after breaking the seal, the baking process must be done by using a tape and reel. baking conditions: once, with tape and reel, 60 ? 5 ? c , 10 to 24 hours after the baking process, this product must be stored under conditions of 30 ? c or below, 70% rh or below, and reflow soldering must be done within 168 hours. < storage conditions after breaking seal > ? storage conditions : 30 ? c or below, 70% rh or below ? maximum stor a ge period after breaking seal : 168 hours (second reflow soldering must be completed within 168 hours.) < reflow soldering conditions > ? peak reflow temperature : 260 ? c or below (package surface temperature) ? maxi mum number of reflows : 2 ? no repair by hand so ldering ? maxi mum chlori n e content of r osin flux (percentage mass) : 0.2% or less
all trademar ks and registered trademarks are the property of their respective owners. c - 1 revision history ph5551a2na1 - e4 data s heet rev. date description page summary 1.00 aug 03 , 201 1 ? first e dition issued

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