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up1816p 1 up1816p-ds-f0000, nov. 2014 www.upi-semi.com ? ? ? ? ? power supply adjustment for m/b and vga ? ? ? ? ? power supply margining ? ? ? ? ? adjustable current sink and source ? ? ? ? ? provide 3 sets of current dacs ? ? ? ? ? 5% accuracy ? ? ? ? ? i2c programmable 128-step sourcing current ? ? ? ? ? i2c programmable 128-step sinking current ? ? ? ? ? programmable full scale current ? ? ? ? ? internal soft-jump function ? ? ? ? ? low external component count ? ? ? ? ? low cost and easy to use ? ? ? ? ? small footprint in sot23 - 8l and wdfn2x2 - 8l packages ? ? ? ? ? rohs compliant and 100% lead (pb)- free general description applications ordering information features pin configuration & typical application circuit three-channel current console with i2c programmable current dac r e b m u n r e d r oe g a k c a pg n i k r a m p o t 8 a m p 6 1 8 1 p ul 8 - 3 2 t o sp 3 8 s 8 n d p 6 1 8 1 p ul 8 - 2 x 2 n f d wk e the up1816p is a high precision current console consisting of three sets i2c programmable current dacs. each current dac is capable of sinking 128-step and sourcing 128-step output currents that are programmed by the i2c interface. the sinking and sourcing currents of out1, out2, and out3 are programmable for 2x boost respectively. the up1816p features soft-jump, easily interfacing with standard dc/dc converter for current console. the up1816p is available in space-saving sot23 - 8l and wdfn2x2 - 8l packages. note: (1) please check the sample/production availability with upi representatives. (2) upi products are compatible with the current ipc/jedec j-std-020 requirement. they are halogen-free, rohs compliant and 100% matte tin (sn) plating that are suitable for use in snpb or pb-free soldering processes. 1 2 3 45 6 7 8 vcc bus_sel gnd sda scl out3 out2 out1 sot23-8l 5vsb vcc gnd scl sda dc/dc converter bus_sel out1 out2 out3 fb1 v out1 dc/dc converter fb2 v out2 dc/dc converte r fb3 v out3 v in1 v in2 v in 3 r1 r2 scl sda out2 out3 6 5 3 4 wdfn2x2 C 8l vcc bus_se l 8 7 out1 1 2 gnd gnd
up1816p 2 up1816p-ds-f0000, nov. 2014 www.upi-semi.com . o n n i p e m a nn o i t c n u f n i p 8 a m p8 n d p 18 c c v t u p n i e g a t l o v y l p p u s y l s u o u n i t n o c s i n i p s i h t . p 6 1 8 1 p u f o t u p n i r e w o p s i n i p s i h t . n i p s i h t t c e n n o c . v 6 . 2 s i l e v e l d l o h s e r h t r o p e h t . ) r o p ( t e s e r n o - r e w o p r o f d e r o t i n o m . n i p d n g o t y l t c e r i d r o t i c a p a c g n i l p u o c e d c i m a r e c a h t i w b s v 5 o t 27 l e s _ s u b . n o i t c e l e s s s e r d d a s u b e h t f o s s e r d d a s u b e h t m a r g o r p o t r e d i v i d e g a t l o v a t c e n n o c . p 6 1 8 1 p u 31 d n g . d n u o r g 46 a d s . t u p n i a t a d l a i r e s . l a n g i s a t a d s u b l a i r e s f o t u p t u o r o t u p n i s i n i p s i h t 55 l c s . t u p n i k c o l c l a i r e s . l a n g i s k c o l c s u b l a i r e s s e v i e c e r n i p s i h t 64 3 t u o . 3 t u p t u o t n e r r u c 73 2 t u o . 2 t u p t u o t n e r r u c 82 1 t u o . 1 t u p t u o t n e r r u c - -d a p d e s o p x e . d n u o r g n o i t c e n n o c e c n a d e p m i t s e w o l e h t h g u o r h t e n a l p / d n a l s i d n u o r g o t n i p s i h t e i t . e l b a l i a v a functional pin description functional block diagram current dac1 current console table 2.6v por gnd out1 current dac2 current dac3 out2 out3 bus_sel scl sda vcc
up1816p 3 up1816p-ds-f0000, nov. 2014 www.upi-semi.com functional description the up1816p is a high precision current console consisting of three sets of i2c programmable current dacs. each current dac is capable of sinking 128-step and sourcing 128-step output currents that are programmed by the i2c interface. the sinking and sourcing currents of out1, out2 and out3 are programmable for 2x boost respectively. the up1816p features soft-jump, easily interfacing with standard dc/dc converter for current console. the up1816p is available in space-saving sot23 - 8l and wdfn2x2 - 8l packages. power on reset the up1816p continuously monitors supply voltage at vcc pin for power on reset circuit por. the por threshold at v cc rising is typically 2.6v. all three current dac outputs are disabled if the supply voltage is lower than the por threshold level. i2c address programming the up1816p features user programmable address by a voltage divider from vcc-to-bus_sel-to-gnd as shown in the typical application circuit . bus_sel pin voltage is compared with internal reference voltage for address programming. there are total 6 addresses available. table 1 illustrates recommended external voltage divider for address programming. table 1. recommended address programming s s e r d d aa 2 x 08 2 x 06 2 x 04 2 x 02 2 x 0 0 2 x 0 k ( 1 r ? )n e p o9 . 332 . 23 . 10 1 k ( 2 r ? )0 13 . 12 . 239 . 3 n e p o e g a t l o v l e s _ s u b ) c c v f o % ( 05 22 48 55 70 0 1 i2c programming interface the up1816p integrates 3-channel current dac out1, out2 and out3 that are programmed by reg0x01, reg0x02 and reg0x03 respectively. each output can sink 128-step current (0~1270ua) and source 128 step current (0~1270ua) as shown in table 2. when bit 0, bit2, or bit 4 of reg0x05 is set to 1, the corresponding output current has 2x value boost. when the undefined value for reg0x01~03 is selected, the output current will keep the last value. soft jump the up1816p features soft jump function that changes output current gradually to its final value. each step takes about 10us. this makes the output voltage of accompanying dc/dc converter smooth transition to its final value, resulting in minimum inrush current from its supply input and avoiding false trigger of overcurrent protection. bit 7 transition the up1816p current dac supports bit 7 direct transition (from 0 to 1 or 1 to 0) by using i2c program. in the transition, the output current is changed gradually and crosses zero to the new target by soft jump function. it increases/ decreases from initial value to zero, and then keep increasing/decreasing to reach its final value. for example, when reg0x01 is programmed from 0x8f to 0x0f, the output current transition is executed in an order as reg0x01 = 0x80 -> 0x00 -> 0x0f. 0x04 watchdog timer delay; default 0x00 bit 7: enable watchdog timer 1: start watchdog counter and reset all registers to default after time-out. 0: stop watchdog counter and reset watchdog timer. bit 6: watchdog timer status; read only this bit is set 1 when watchdog time-out happens. this bit is clear to 0 once this register is read out. bits 5~4: watchdog timer. accuracy 50% 11: 11000ms 10: 5500ms 01: 2800ms 00: 1400ms bit 3~2: step speed controller delay 11: 40us 10: 30us 01: 20us 00: 10us bit 1~0: version identification 0x05 current dac control and power saving bit 7, 5, 3, 1: reserved bit 6: power saving 1: power saving function enabled 0: power saving function disabled bit 4, 2, 0: output current 2x for out3, out2, and out1 1: output current 2x enabled 0: output current 2x disabled 0x5d vendor id1 0x5e vendor id2
up1816p 4 up1816p-ds-f0000, nov. 2014 www.upi-semi.com p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 00 0 0 0 , 0 0 0 0 000 11 0 0 0 , 0 0 0 00 1 -0 1 -0 1 - 20 1 0 0 , 0 0 0 00 2 -0 2 -0 2 - 31 1 0 0 , 0 0 0 00 3 -0 3 -0 3 - 40 0 1 0 , 0 0 0 00 4 -0 4 -0 4 - 51 0 1 0 , 0 0 0 00 5 -0 5 -0 5 - 60 1 1 0 , 0 0 0 00 6 -0 6 -0 6 - 71 1 1 0 , 0 0 0 00 7 -0 7 -0 7 - 80 0 0 1 , 0 0 0 00 8 -0 8 -0 8 - 91 0 0 1 , 0 0 0 00 9 -0 9 -0 9 - 0 10 1 0 1 , 0 0 0 00 0 1 -0 0 1 -0 0 1 - 1 11 1 0 1 , 0 0 0 00 1 1 -0 1 1 -0 1 1 - 2 10 0 1 1 , 0 0 0 00 2 1 -0 2 1 -0 2 1 - 3 11 0 1 1 , 0 0 0 00 3 1 -0 3 1 -0 3 1 - 4 10 1 1 1 , 0 0 0 00 4 1 -0 4 1 -0 4 1 - 5 11 1 1 1 , 0 0 0 00 5 1 -0 5 1 -0 5 1 - 6 10 0 0 0 , 1 0 0 00 6 1 -0 6 1 -0 6 1 - 7 11 0 0 0 , 1 0 0 00 7 1 -0 7 1 -0 7 1 - 8 10 1 0 0 , 1 0 0 00 8 1 -0 8 1 -0 8 1 - 9 11 1 0 0 , 1 0 0 00 9 1 -0 9 1 -0 9 1 - 0 20 0 1 0 , 1 0 0 00 0 2 -0 0 2 -0 0 2 - 1 21 0 1 0 , 1 0 0 00 1 2 -0 1 2 -0 1 2 - 2 20 1 1 0 , 1 0 0 00 2 2 -0 2 2 -0 2 2 - 3 21 1 1 0 , 1 0 0 00 3 2 -0 3 2 -0 3 2 - 4 20 0 0 1 , 1 0 0 00 4 2 -0 4 2 -0 4 2 - 5 21 0 0 1 , 1 0 0 00 5 2 -0 5 2 -0 5 2 - 6 20 1 0 1 , 1 0 0 00 6 2 -0 6 2 -0 6 2 - 7 21 1 0 1 , 1 0 0 00 7 2 -0 7 2 -0 7 2 - 8 20 0 1 1 , 1 0 0 00 8 2 -0 8 2 -0 8 2 - 9 21 0 1 1 , 1 0 0 00 9 2 -0 9 2 -0 9 2 - 0 30 1 1 1 , 1 0 0 00 0 3 -0 0 3 -0 0 3 - 1 31 1 1 1 , 1 0 0 00 1 3 -0 1 3 -0 1 3 - p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 2 30 0 0 0 , 0 1 0 00 2 3 -0 2 3 -0 2 3 - 3 31 0 0 0 , 0 1 0 00 3 3 -0 3 3 -0 3 3 - 4 30 1 0 0 , 0 1 0 00 4 3 -0 4 3 -0 4 3 - 5 31 1 0 0 , 0 1 0 00 5 3 -0 5 3 -0 5 3 - 6 30 0 1 0 , 0 1 0 00 6 3 -0 6 3 -0 6 3 - 7 31 0 1 0 , 0 1 0 00 7 3 -0 7 3 -0 7 3 - 8 30 1 1 0 , 0 1 0 00 8 3 -0 8 3 -0 8 3 - 9 31 1 1 0 , 0 1 0 00 9 3 -0 9 3 -0 9 3 - 0 40 0 0 1 , 0 1 0 00 0 4 -0 0 4 -0 0 4 - 1 41 0 0 1 , 0 1 0 00 1 4 -0 1 4 -0 1 4 - 2 40 1 0 1 , 0 1 0 00 2 4 -0 2 4 -0 2 4 - 3 41 1 0 1 , 0 1 0 00 3 4 -0 3 4 -0 3 4 - 4 40 0 1 1 , 0 1 0 00 4 4 -0 4 4 -0 4 4 - 5 41 0 1 1 , 0 1 0 00 5 4 -0 5 4 -0 5 4 - 6 40 1 1 1 , 0 1 0 00 6 4 -0 6 4 -0 6 4 - 7 41 1 1 1 , 0 1 0 00 7 4 -0 7 4 -0 7 4 - 8 40 0 0 0 , 1 1 0 00 8 4 -0 8 4 -0 8 4 - 9 41 0 0 0 , 1 1 0 00 9 4 -0 9 4 -0 9 4 - 0 50 1 0 0 , 1 1 0 00 0 5 -0 0 5 -0 0 5 - 1 51 1 0 0 , 1 1 0 00 1 5 -0 1 5 -0 1 5 - 2 50 0 1 0 , 1 1 0 00 2 5 -0 2 5 -0 2 5 - 3 51 0 1 0 , 1 1 0 00 3 5 -0 3 5 -0 3 5 - 4 50 1 1 0 , 1 1 0 00 4 5 -0 4 5 -0 4 5 - 5 51 1 1 0 , 1 1 0 00 5 5 -0 5 5 -0 5 5 - 6 50 0 0 1 , 1 1 0 00 6 5 -0 6 5 -0 6 5 - 7 51 0 0 1 , 1 1 0 00 7 5 -0 7 5 -0 7 5 - 8 50 1 0 1 , 1 1 0 00 8 5 -0 8 5 -0 8 5 - 9 51 1 0 1 , 1 1 0 00 9 5 -0 9 5 -0 9 5 - 0 60 0 1 1 , 1 1 0 00 0 6 -0 0 6 -0 0 6 - 1 61 0 1 1 , 1 1 0 00 1 6 -0 1 6 -0 1 6 - 2 60 1 1 1 , 1 1 0 00 2 6 -0 2 6 -0 2 6 - 3 61 1 1 1 , 1 1 0 00 3 6 -0 3 6 -0 3 6 - functional description table 2. current dac table with bit7 = 0 table 2. current dac table with bit7 = 0 (cont.)
up1816p 5 up1816p-ds-f0000, nov. 2014 www.upi-semi.com p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 4 60 0 0 0 , 0 0 1 00 4 6 -0 4 6 -0 4 6 - 5 61 0 0 0 , 0 0 1 00 5 6 -0 5 6 -0 5 6 - 6 60 1 0 0 , 0 0 1 00 6 6 -0 6 6 -0 6 6 - 7 61 1 0 0 , 0 0 1 00 7 6 -0 7 6 -0 7 6 - 8 60 0 1 0 , 0 0 1 00 8 6 -0 8 6 -0 8 6 - 9 61 0 1 0 , 0 0 1 00 9 6 -0 9 6 -0 9 6 - 0 70 1 1 0 , 0 0 1 00 0 7 -0 0 7 -0 0 7 - 1 71 1 1 0 , 0 0 1 00 1 7 -0 1 7 -0 1 7 - 2 70 0 0 1 , 0 0 1 00 2 7 -0 2 7 -0 2 7 - 3 71 0 0 1 , 0 0 1 00 3 7 -0 3 7 -0 3 7 - 4 70 1 0 1 , 0 0 1 00 4 7 -0 4 7 -0 4 7 - 5 71 1 0 1 , 0 0 1 00 5 7 -0 5 7 -0 5 7 - 6 70 0 1 1 , 0 0 1 00 6 7 -0 6 7 -0 6 7 - 7 71 0 1 1 , 0 0 1 00 7 7 -0 7 7 -0 7 7 - 8 70 1 1 1 , 0 0 1 00 8 7 -0 8 7 -0 8 7 - 9 71 1 1 1 , 0 0 1 00 9 7 -0 9 7 -0 9 7 - 0 80 0 0 0 , 1 0 1 00 0 8 -0 0 8 -0 0 8 - 1 81 0 0 0 , 1 0 1 00 1 8 -0 1 8 -0 1 8 - 2 80 1 0 0 , 1 0 1 00 2 8 -0 2 8 -0 2 8 - 3 81 1 0 0 , 1 0 1 00 3 8 -0 3 8 -0 3 8 - 4 80 0 1 0 , 1 0 1 00 4 8 -0 4 8 -0 4 8 - 5 81 0 1 0 , 1 0 1 00 5 8 -0 5 8 -0 5 8 - 6 80 1 1 0 , 1 0 1 00 6 8 -0 6 8 -0 6 8 - 7 81 1 1 0 , 1 0 1 00 7 8 -0 7 8 -0 7 8 - 8 80 0 0 1 , 1 0 1 00 8 8 -0 8 8 -0 8 8 - 9 81 0 0 1 , 1 0 1 00 9 8 -0 9 8 -0 9 8 - 0 90 1 0 1 , 1 0 1 00 0 9 -0 0 9 -0 0 9 - 1 91 1 0 1 , 1 0 1 00 1 9 -0 1 9 -0 1 9 - 2 90 0 1 1 , 1 0 1 00 2 9 -0 2 9 -0 2 9 - 3 91 0 1 1 , 1 0 1 00 3 9 -0 3 9 -0 3 9 - 4 90 1 1 1 , 1 0 1 00 4 9 -0 4 9 -0 4 9 - 5 91 1 1 1 , 1 0 1 00 5 9 -0 5 9 -0 5 9 - functional description table 2. current dac table with bit7 = 0 (cont.) p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 6 90 0 0 0 , 0 1 1 00 6 9 -0 6 9 -0 6 9 - 7 91 0 0 0 , 0 1 1 00 7 9 -0 7 9 -0 7 9 - 8 90 1 0 0 , 0 1 1 00 8 9 -0 8 9 -0 8 9 - 9 91 1 0 0 , 0 1 1 00 9 9 -0 9 9 -0 9 9 - 0 0 10 0 1 0 , 0 1 1 00 0 0 1 -0 0 0 1 -0 0 0 1 - 1 0 11 0 1 0 , 0 1 1 00 1 0 1 -0 1 0 1 -0 1 0 1 - 2 0 10 1 1 0 , 0 1 1 00 2 0 1 -0 2 0 1 -0 2 0 1 - 3 0 11 1 1 0 , 0 1 1 00 3 0 1 -0 3 0 1 -0 3 0 1 - 4 0 10 0 0 1 , 0 1 1 00 4 0 1 -0 4 0 1 -0 4 0 1 - 5 0 11 0 0 1 , 0 1 1 00 5 0 1 -0 5 0 1 -0 5 0 1 - 6 0 10 1 0 1 , 0 1 1 00 6 0 1 -0 6 0 1 -0 6 0 1 - 7 0 11 1 0 1 , 0 1 1 00 7 0 1 -0 7 0 1 -0 7 0 1 - 8 0 10 0 1 1 , 0 1 1 00 8 0 1 -0 8 0 1 -0 8 0 1 - 9 0 11 0 1 1 , 0 1 1 00 9 0 1 -0 9 0 1 -0 9 0 1 - 0 1 10 1 1 1 , 0 1 1 00 0 1 1 -0 0 1 1 -0 0 1 1 - 1 1 11 1 1 1 , 0 1 1 00 1 1 1 -0 1 1 1 -0 1 1 1 - 2 1 10 0 0 0 , 1 1 1 00 2 1 1 -0 2 1 1 -0 2 1 1 - 3 1 11 0 0 0 , 1 1 1 00 3 1 1 -0 3 1 1 -0 3 1 1 - 4 1 10 1 0 0 , 1 1 1 00 4 1 1 -0 4 1 1 -0 4 1 1 - 5 1 11 1 0 0 , 1 1 1 00 5 1 1 -0 5 1 1 -0 5 1 1 - 6 1 10 0 1 0 , 1 1 1 00 6 1 1 -0 6 1 1 -0 6 1 1 - 7 1 11 0 1 0 , 1 1 1 00 7 1 1 -0 7 1 1 -0 7 1 1 - 8 1 10 1 1 0 , 1 1 1 00 8 1 1 -0 8 1 1 -0 8 1 1 - 9 1 11 1 1 0 , 1 1 1 00 9 1 1 -0 9 1 1 -0 9 1 1 - 0 2 10 0 0 1 , 1 1 1 00 0 2 1 -0 0 2 1 -0 0 2 1 - 1 2 11 0 0 1 , 1 1 1 00 1 2 1 -0 1 2 1 -0 1 2 1 - 2 2 10 1 0 1 , 1 1 1 00 2 2 1 -0 2 2 1 -0 2 2 1 - 3 2 11 1 0 1 , 1 1 1 00 3 2 1 -0 3 2 1 -0 3 2 1 - 4 2 10 0 1 1 , 1 1 1 00 4 2 1 -0 4 2 1 -0 4 2 1 - 5 2 11 0 1 1 , 1 1 1 00 5 2 1 -0 5 2 1 -0 5 2 1 - 6 2 10 1 1 1 , 1 1 1 00 6 2 1 -0 6 2 1 -0 6 2 1 - 7 2 11 1 1 1 , 1 1 1 00 7 2 1 -0 7 2 1 -0 7 2 1 - table 2. current dac table with bit7 = 0 (cont.)
up1816p 6 up1816p-ds-f0000, nov. 2014 www.upi-semi.com table 3. current dac table with bit7 = 1 p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 00 0 0 0 , 0 0 0 1 000 11 0 0 0 , 0 0 0 10 10 10 1 20 1 0 0 , 0 0 0 10 20 20 2 31 1 0 0 , 0 0 0 10 30 30 3 40 0 1 0 , 0 0 0 10 40 40 4 51 0 1 0 , 0 0 0 10 50 50 5 60 1 1 0 , 0 0 0 10 60 60 6 71 1 1 0 , 0 0 0 10 70 70 7 80 0 0 1 , 0 0 0 10 80 80 8 91 0 0 1 , 0 0 0 10 90 90 9 0 10 1 0 1 , 0 0 0 10 0 10 0 10 0 1 1 11 1 0 1 , 0 0 0 10 1 10 1 10 1 1 2 10 0 1 1 , 0 0 0 10 2 10 2 10 2 1 3 11 0 1 1 , 0 0 0 10 3 10 3 10 3 1 4 10 1 1 1 , 0 0 0 10 4 10 4 10 4 1 5 11 1 1 1 , 0 0 0 10 5 10 5 10 5 1 6 10 0 0 0 , 1 0 0 10 6 10 6 10 6 1 7 11 0 0 0 , 1 0 0 10 7 10 7 10 7 1 8 10 1 0 0 , 1 0 0 10 8 10 8 10 8 1 9 11 1 0 0 , 1 0 0 10 9 10 9 10 9 1 0 20 0 1 0 , 1 0 0 10 0 20 0 20 0 2 1 21 0 1 0 , 1 0 0 10 1 20 1 20 1 2 2 20 1 1 0 , 1 0 0 10 2 20 2 20 2 2 3 21 1 1 0 , 1 0 0 10 3 20 3 20 3 2 4 20 0 0 1 , 1 0 0 10 4 20 4 20 4 2 5 21 0 0 1 , 1 0 0 10 5 20 5 20 5 2 6 20 1 0 1 , 1 0 0 10 6 20 6 20 6 2 7 21 1 0 1 , 1 0 0 10 7 20 7 20 7 2 8 20 0 1 1 , 1 0 0 10 8 20 8 20 8 2 9 21 0 1 1 , 1 0 0 10 9 20 9 20 9 2 0 30 1 1 1 , 1 0 0 10 0 30 0 30 0 3 1 31 1 1 1 , 1 0 0 10 1 30 1 30 1 3 p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 2 30 0 0 0 , 0 1 0 10 2 30 2 30 2 3 3 31 0 0 0 , 0 1 0 10 3 30 3 30 3 3 4 30 1 0 0 , 0 1 0 10 4 30 4 30 4 3 5 31 1 0 0 , 0 1 0 10 5 30 5 30 5 3 6 30 0 1 0 , 0 1 0 10 6 30 6 30 6 3 7 31 0 1 0 , 0 1 0 10 7 30 7 30 7 3 8 30 1 1 0 , 0 1 0 10 8 30 8 30 8 3 9 31 1 1 0 , 0 1 0 10 9 30 9 30 9 3 0 40 0 0 1 , 0 1 0 10 0 40 0 40 0 4 1 41 0 0 1 , 0 1 0 10 1 40 1 40 1 4 2 40 1 0 1 , 0 1 0 10 2 40 2 40 2 4 3 41 1 0 1 , 0 1 0 10 3 40 3 40 3 4 4 40 0 1 1 , 0 1 0 10 4 40 4 40 4 4 5 41 0 1 1 , 0 1 0 10 5 40 5 40 5 4 6 40 1 1 1 , 0 1 0 10 6 40 6 40 6 4 7 41 1 1 1 , 0 1 0 10 7 40 7 40 7 4 8 40 0 0 0 , 1 1 0 10 8 40 8 40 8 4 9 41 0 0 0 , 1 1 0 10 9 40 9 40 9 4 0 50 1 0 0 , 1 1 0 10 0 50 0 50 0 5 1 51 1 0 0 , 1 1 0 10 1 50 1 50 1 5 2 50 0 1 0 , 1 1 0 10 2 50 2 50 2 5 3 51 0 1 0 , 1 1 0 10 3 50 3 50 3 5 4 50 1 1 0 , 1 1 0 10 4 50 4 50 4 5 5 51 1 1 0 , 1 1 0 10 5 50 5 50 5 5 6 50 0 0 1 , 1 1 0 10 6 50 6 50 6 5 7 51 0 0 1 , 1 1 0 10 7 50 7 50 7 5 8 50 1 0 1 , 1 1 0 10 8 50 8 50 8 5 9 51 1 0 1 , 1 1 0 10 9 50 9 50 9 5 0 60 0 1 1 , 1 1 0 10 0 60 0 60 0 6 1 61 0 1 1 , 1 1 0 10 1 60 1 60 1 6 2 60 1 1 1 , 1 1 0 10 2 60 2 60 2 6 3 61 1 1 1 , 1 1 0 10 3 60 3 60 3 6 functional description table 3. current dac table with bit7 = 1 (cont.)
up1816p 7 up1816p-ds-f0000, nov. 2014 www.upi-semi.com functional description table 3. current dac table with bit7 = 1 (cont.) table 3. current dac table with bit7 = 1 (cont.) p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 4 60 0 0 0 , 0 0 1 10 4 60 4 60 4 6 5 61 0 0 0 , 0 0 1 10 5 60 5 60 5 6 6 60 1 0 0 , 0 0 1 10 6 60 6 60 6 6 7 61 1 0 0 , 0 0 1 10 7 60 7 60 7 6 8 60 0 1 0 , 0 0 1 10 8 60 8 60 8 6 9 61 0 1 0 , 0 0 1 10 9 60 9 60 9 6 0 70 1 1 0 , 0 0 1 10 0 70 0 70 0 7 1 71 1 1 0 , 0 0 1 10 1 70 1 70 1 7 2 70 0 0 1 , 0 0 1 10 2 70 2 70 2 7 3 71 0 0 1 , 0 0 1 10 3 70 3 70 3 7 4 70 1 0 1 , 0 0 1 10 4 70 4 70 4 7 5 71 1 0 1 , 0 0 1 10 5 70 5 70 5 7 6 70 0 1 1 , 0 0 1 10 6 70 6 70 6 7 7 71 0 1 1 , 0 0 1 10 7 70 7 70 7 7 8 70 1 1 1 , 0 0 1 10 8 70 8 70 8 7 9 71 1 1 1 , 0 0 1 10 9 70 9 70 9 7 0 80 0 0 0 , 1 0 1 10 0 80 0 80 0 8 1 81 0 0 0 , 1 0 1 10 1 80 1 80 1 8 2 80 1 0 0 , 1 0 1 10 2 80 2 80 2 8 3 81 1 0 0 , 1 0 1 10 3 80 3 80 3 8 4 80 0 1 0 , 1 0 1 10 4 80 4 80 4 8 5 81 0 1 0 , 1 0 1 10 5 80 5 80 5 8 6 80 1 1 0 , 1 0 1 10 6 80 6 80 6 8 7 81 1 1 0 , 1 0 1 10 7 80 7 80 7 8 8 80 0 0 1 , 1 0 1 10 8 80 8 80 8 8 9 81 0 0 1 , 1 0 1 10 9 80 9 80 9 8 0 90 1 0 1 , 1 0 1 10 0 90 0 90 0 9 1 91 1 0 1 , 1 0 1 10 1 90 1 90 1 9 2 90 0 1 1 , 1 0 1 10 2 90 2 90 2 9 3 91 0 1 1 , 1 0 1 10 3 90 3 90 3 9 4 90 1 1 1 , 1 0 1 10 4 90 4 90 4 9 5 91 1 1 1 , 1 0 1 10 5 90 5 90 5 9 p e t s0 ~ 7 s t i b 1 t u o ) a u ( 2 t u o ) a u ( 3 t u o ) a u ( 6 90 0 0 0 , 0 1 1 10 6 90 6 90 6 9 7 91 0 0 0 , 0 1 1 10 7 90 7 90 7 9 8 90 1 0 0 , 0 1 1 10 8 90 8 90 8 9 9 91 1 0 0 , 0 1 1 10 9 90 9 90 9 9 0 0 10 0 1 0 , 0 1 1 10 0 0 10 0 0 10 0 0 1 1 0 11 0 1 0 , 0 1 1 10 1 0 10 1 0 10 1 0 1 2 0 10 1 1 0 , 0 1 1 10 2 0 10 2 0 10 2 0 1 3 0 11 1 1 0 , 0 1 1 10 3 0 10 3 0 10 3 0 1 4 0 10 0 0 1 , 0 1 1 10 4 0 10 4 0 10 4 0 1 5 0 11 0 0 1 , 0 1 1 10 5 0 10 5 0 10 5 0 1 6 0 10 1 0 1 , 0 1 1 10 6 0 10 6 0 10 6 0 1 7 0 11 1 0 1 , 0 1 1 10 7 0 10 7 0 10 7 0 1 8 0 10 0 1 1 , 0 1 1 10 8 0 10 8 0 10 8 0 1 9 0 11 0 1 1 , 0 1 1 10 9 0 10 9 0 10 9 0 1 0 1 10 1 1 1 , 0 1 1 10 0 1 10 0 1 10 0 1 1 1 1 11 1 1 1 , 0 1 1 10 1 1 10 1 1 10 1 1 1 2 1 10 0 0 0 , 1 1 1 10 2 1 10 2 1 10 2 1 1 3 1 11 0 0 0 , 1 1 1 10 3 1 10 3 1 10 3 1 1 4 1 10 1 0 0 , 1 1 1 10 4 1 10 4 1 10 4 1 1 5 1 11 1 0 0 , 1 1 1 10 5 1 10 5 1 10 5 1 1 6 1 10 0 1 0 , 1 1 1 10 6 1 10 6 1 10 6 1 1 7 1 11 0 1 0 , 1 1 1 10 7 1 10 7 1 10 7 1 1 8 1 10 1 1 0 , 1 1 1 10 8 1 10 8 1 10 8 1 1 9 1 11 1 1 0 , 1 1 1 10 9 1 10 9 1 10 9 1 1 0 2 10 0 0 1 , 1 1 1 10 0 2 10 0 2 10 0 2 1 1 2 11 0 0 1 , 1 1 1 10 1 2 10 1 2 10 1 2 1 2 2 10 1 0 1 , 1 1 1 10 2 2 10 2 2 10 2 2 1 3 2 11 1 0 1 , 1 1 1 10 3 2 10 3 2 10 3 2 1 4 2 10 0 1 1 , 1 1 1 10 4 2 10 4 2 10 4 2 1 5 2 11 0 1 1 , 1 1 1 10 5 2 10 5 2 10 5 2 1 6 2 10 1 1 1 , 1 1 1 10 6 2 10 6 2 10 6 2 1 7 2 11 1 1 1 , 1 1 1 10 7 2 10 7 2 10 7 2 1
up1816p 8 up1816p-ds-f0000, nov. 2014 www.upi-semi.com (note 1) supply input voltage v cc --------------------------------------------------------------------------------------------------------------- -0.3v to +6v other pins ------------------------------------------------------------------------------------------------------------------- ---- -0.3v to (v cc +0.3v ) storage temperature range ----------------------------------------------------------------------------------------------------------- -65 o c to +150 o c junction temperature ------------------------------------------------------------------------------------------------------------------------------- ----- 150 o c lead temperature (soldering, 10 sec) ------------------------------------------------------------------------------------------------------------ 260 o c esd rating (note 2) hbm (human body mode) --------------------------------------------------------------------------------------------------------------------- 2kv mm (machine mode) ----------------------------------------------------------------------------------------------------------------------------- 200v package thermal resistance (note 3) sot23 - 8l ja -------------------------------------------------------------------------------------------------------------------------- 2 50 o c/w sot23 - 8l jc -------------------------------------------------------------------------------------------------------------------------- 1 40 o c/w wdfn2x2 - 8l ja ---------------------------------------------------------------------------------------------------------------------- 155 o c/w wdfn2x2 - 8l jc ----------------------------------------------------------------------------------------------------------------------- 20 o c/w power dissipation, p d @ t a = 25 o c sot23 - 8l ------------------------------------------------------------------------------------------------------------------- ----------------------- 0.4w wdfn2x2 - 8l ----------------------------------------------------------------------------------------------------------------- ------------------ 0.625w (note 4) operating junction temperature range ----------------------------------------------------------------------------------------- -- -40 o c to +125 o c operating ambient temperature range ------------------------------------------------------------------------------------------ - -40 o c to +85 o c supply input voltage, v cc ---------------------------------------------------------------------------------------------------------------- +3v to +5.5 v absolute maximum rating thermal information recommended operation conditions note 1. stresses listed as the above absolute maximum ratings may cause permanent damage to the device. these are for stress ratings. functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. note 2. devices are esd sensitive. handling precaution recommended. note 3. ja is measured in the natural convection at t a = 25 o c on a low effective thermal conductivity test board of jedec 51-3 thermal measurement standard. note 4. the device is not guaranteed to function outside its operating conditions.
up1816p 9 up1816p-ds-f0000, nov. 2014 www.upi-semi.com electrical characteristics r e t e m a r a pl o b m y ss n o i t i d n o c t s e tn i mp y tx a m t i n u e g a t l o v t u p n i y l p p u s d l o h s e r h t r o pv h t r _ c c - -6 . 2- -v t n e r r u c t u p n i y l p p u si c c i 1 t u o i = 2 t u o i = 3 t u o a u 0 =5 . 0- -5 . 1a m r e w o p n i t n e r r u c t u p n i y l p p u s e d o m g n i v a s i m s p _ c c i 1 t u o i = 2 t u o i = 3 t u o a u 0 =3 . 0- -6 . 0a m e g a k a e l h g i h t u p n ii h i - -- -1a u e g a k a e l w o l t u p n ii l i 1 -- -- -a u t u p t u o c a d t n e r r u c t n e r r u c t e s f f o t u p t u oi t s f o _ t u o i t u o v , a u 0 s a d e m m a r g o r p t u o v 5 ~ v 0 =1 -- -1a u y c a r u c c a t n e r r u c t u p t u o i t u o , a u 0 4 5 2 ~ a u 0 1 1 s a d e m m a r g o r p v t u o v 8 . 0 = 5 -- -5 +% i t u o , a u 0 0 1 ~ a u 0 s a d e m m a r g o r p v t u o v 8 . 0 = 5 -- -5 +a u n o i t a l u g e r e n i l t n e r r u c t u p t u o i t u o v , g n i k n i s t u o v 5 . 0 =v ~ c c v 1 -2 . 1 -- -2 . 1 +v / % i t u o v , g n i c r u o s t u o v ~ v 5 . 0 = c c v 1 -1 -- -1 +v / % y c a r u c c a d e e p s p e t s - -0 8- -% y c a r u c c a y a l e d g o d h c t a w - -0 8- -% e c a f r e t n i c 2 i l e v e l h g i h t u p n i a d s , l c sv h i 1 . 2- -v p u l l u p v l e v e l w o l t u p n i a d s , l c sv l i - -- -6 . 0v e g a t l o v w o l t u p t u o a d sv l o i l o i = p u l l u p - -- -4 . 0v e g a t l o v p u l l u p l a n i m o nv p u l l u p 7 . 2- -5 . 5v g n i k n i s t n e r r u ci p u l l u p v l o v 4 . 0 =2 1- -- -a m n o i t c e l e s s s e r d d a e g n a r e g a t l o v 1 s s e r d aa 2 x 0 = s s e r d d a- -- -5 1v % c c e g n a r e g a t l o v 2 s s e r d a8 2 x 0 = s s e r d d a0 25 20 3v % c c e g n a r e g a t l o v 3 s s e r d a6 2 x 0 = s s e r d d a7 32 47 4v % c c e g n a r e g a t l o v 4 s s e r d a4 2 x 0 = s s e r d d a3 58 52 6v % c c e g n a r e g a t l o v 5 s s e r d a2 2 x 0 = s s e r d d a0 75 70 8v % c c e g n a r e g a t l o v 6 s s e r d a0 2 x 0 = s s e r d d a5 8- -- -v % c c (v cc = 5v, t a = 25 o c, unless otherwise specified)
up1816p 10 up1816p-ds-f0000, nov. 2014 www.upi-semi.com i out1 (500ua/div) i out1 (500ua/div) i out1 (250ua/div) i out1 (250ua/div) typical operation characteristics output current transition 200us/div reg0x01 = 00 to 7f, reg0x05 bit 0 = 0 output voltage = 0.8v output current transition 200us/div reg0x01 = 80 to ff, reg0x05 bit 0 = 0 output voltage = 0.8v output current transition 200us/div reg0x01 = 00 to 7f, reg0x05 bit 0 = 1 output voltage = 0.8v output current transition 200us/div reg0x01 = 80 to ff, reg0x05 bit 0 = 1 output voltage = 0.8v
up1816p 11 up1816p-ds-f0000, nov. 2014 www.upi-semi.com -1400 -1200 -1000 -800 -600 -400 -200 0 200 0 16 32 48 64 80 96 112 128 -3000 -2500 -2000 -1500 -1000 -500 0 0 163248648096112128 0 500 1000 1500 2000 2500 3000 0 163248648096112128 output current with bit 7 = 0 step reg0x05 bit 4,2,0 = 0, output voltage = 0.8v output current (ua) 0 200 400 600 800 1000 1200 1400 0 163248648096112128 1100 1150 1200 1250 1300 1350 1400 1450 1500 0.5 1.5 2.5 3.5 4.5 -1500 -1450 -1400 -1350 -1300 -1250 -1200 -1150 -1100 0.5 1.5 2.5 3.5 4.5 output current with bit 7 = 0 step reg0x05 bit 4,2,0 = 1,output voltage = 0.8v output current (ua) typical operation characteristics output current vs. output voltage output voltage (v) reg0x05 bit 4,2,0 = 0, v cc = 5v, reg0x01~0x03 = 0x7f (1270ua sinking) output current (ua) output current with bit 7 = 1 step reg0x05 bit 4,2,0 = 1,output voltage = 0.8v output current (ua) output current vs. output voltage output voltage (v) reg0x05 bit 4,2,0 = 0, v cc = 5v reg0x01~0x03 = 0xff (1270ua sourcing) output current (ua) output current with bit 7 = 1 step reg0x05 bit 4,2,0 = 0, output voltage = 0.8v output current (ua)
up1816p 12 up1816p-ds-f0000, nov. 2014 www.upi-semi.com -2700 -2600 -2500 -2400 -2300 -2200 -2100 -2000 -1900 0.5 1.5 2.5 3.5 4.5 -1350 -1330 -1310 -1290 -1270 -1250 -1230 -1210 -50 0 50 100 150 1210 1230 1250 1270 1290 1310 1330 1350 -50 0 50 100 150 1900 2000 2100 2200 2300 2400 2500 2600 2700 0.5 1.5 2.5 3.5 4.5 output current vs. output voltage output voltage (v) reg0x05 bit 4,2,0 = 1, v cc = 5v reg0x01~0x03 = 0x7f (2540 ua sinking) output current (ua) output current vs. output voltage output voltage (v) reg0x05 bit 4,2,0 = 1, v cc = 5v reg0x01~0x03 = 0xff (2540 ua sourcing) output current (ua) typical operation characteristics output current vs. junction temperature junction temperature ( o c) reg0x05 bit 4,2,0 = 0 reg0x01~0x03 = 0xff (1270 ua sourcing) output current (ua) output current vs. junction temperature junction temperature ( o c) reg0x05 bit 4,2,0 = 0 reg0x01~0x03 = 0x7f (1270 ua sinking) output current (ua)
up1816p 13 up1816p-ds-f0000, nov. 2014 www.upi-semi.com 2300 2350 2400 2450 2500 2550 2600 2650 2700 -50 0 50 100 150 -2700 -2650 -2600 -2550 -2500 -2450 -2400 -2350 -2300 -50 0 50 100 150 typical operation characteristics output current vs. junction temperature junction temperature ( o c) reg0x05 bit 4,2,0 = 1 reg0x01~0x03 = 0xff (2540 ua sourcing) output current (ua) output current vs. junction temperature junction temperature ( o c) reg0x05 bit 4,2,0 = 1 reg0x01~0x03 = 0x7f (2540 ua sinking) output current (ua)
up1816p 14 up1816p-ds-f0000, nov. 2014 www.upi-semi.com application information the up1816p is a high precision current console consisting of three sets i2c programmable current dacs. each current dac is capable of sinking 128-step and sourcing 128-step output current that are programmed by the i2c interface. the sinking and sourcing current of out1, out2 and out3 are programmable for 2x boost respectively. the up1816p features soft-jump, easily interfacing with standard dc/dc converter for current console. the up1816p is available in space-saving sot23 - 8l and wdfn2x2 - 8l package. output voltage programming of dc/dc converter figure 2 shows a typical interface between up1816p and a general-purposed dc/dc converter. it is convenient to program the output voltage v out by selecting appropriate output current i out of up1816p. the output voltage difference when i out is applied is calculated as: 1 r i v v v out norm _ out out out ? = ? = ? for example, if i out = -630ua (sinking) is selected and r1 =1k ? , the output voltage will increase by amount as: v 63 . 0 k 1 ua 630 v out = ? = ? it is noted the above calculation is independent of r2. users can select r2 according to required nominal output voltage. vcc gnd scl sda dc/dc converte r bus_sel out1 out2 out3 fb v out v in i out r1 r2 figure 2. interfacing the up1816p and dc/dc converter extra current for charging/discharging output capacitor extra current besides normal loading is required to charge/ discharge the output capacitors to its new level when the output voltage is making transition due to i out change of up1816p. for example, i out changes from 0ua to -630ua in 63 steps and ? v out changes from 0v to 0.63v accordingly. it takes about 630us for i out to change from 0ua to -630ua. the extra current to charge the output capacitor c out = 2000uf is calculated as: a 2 us 630 v 63 . 0 uf 2000 t v c i out out extra = = ? ? = make sure the dc/dc converter can afford the extra current without false triggering any protection functions. layout consideration pcb layout is an important part of design for up1816p the fb pin of the dc/dc converter is a noise sensitive pin. great care should be taken when placing the parts and routing the fb trace. place the up1816p physically near the fb pin of the dc/ dc converter. keep the fb traces short and away from noisy nodes to avoid noise pick-up. check transient response and stability even though the output impedance of up1816p is quite high over a wide frequency range, the insertion of up1816p does affect voltage control loop design of the dc/dc converter. it is highly recommended to check the transient response and stability of the converter when up1816p is applied.
up1816p 15 up1816p-ds-f0000, nov. 2014 www.upi-semi.com note 1.package outline unit description: bsc: basic. represents theoretical exact dimension or dimension target min: minimum dimension specified. max: maximum dimension specified. ref: reference. represents dimension for reference use only. this value is not a device specification. typ. typical. provided as a general value. this value is not a device specification. 2.dimensions in millimeters. 3.drawing not to scale. 4.these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.15mm. package information sot23 - 8l 0.22 - 0.38 2.80 - 3.00 2.60 - 3.00 1.95 bsc 0.00 - 0.15 0.65 bsc 1.50 - 1.70 1.45 max 0.08 - 0.22 0.30 - 0.60
up1816p 16 up1816p-ds-f0000, nov. 2014 www.upi-semi.com note 1.package outline unit description: bsc: basic. represents theoretical exact dimension or dimension target min: minimum dimension specified. max: maximum dimension specified. ref: reference. represents dimension for reference use only. this value is not a device specification. typ. typical. provided as a general value. this value is not a device specification. 2.dimensions in millimeters. 3.drawing not to scale. 4.these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed 0.15mm. package information wdfn2x2 - 8l 1 4 5 0.18 - 0.30 0.50 bsc 1.90 - 2.10 1.90 - 2.10 0.50 - 0.80 0.20 - 0.50 1.10 - 1.40 0.00 - 0.05 0.20 ref 0.70 - 0.80 8
up1816p 17 up1816p-ds-f0000, nov. 2014 www.upi-semi.com important notice upi and its subsidiaries reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. upi products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment. however, no res ponsibility is assumed by upi 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 upi or its subsidiaries. copyright ( c ) 2013, upi semiconductor corp. upi semiconductor corp. headquarter 9f.,no.5, taiyuan 1st st. zhubei city, hsinchu taiwan, r.o.c. tel : 886.3.560.1666 fax : 886.3.560.1888 upi semiconductor corp. sales branch office 12f-5, no. 408, ruiguang rd. neihu district, taipei taiwan, r.o.c. tel : 886.2.8751.2062 fax : 886.2.8751.5064

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