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advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 1 of 23 v 1.0 aat1101 series details are subject to change without notice triple output tft lcd pwm controller features z complete pwm power control circuitry z precision reference: 1.25v1% (25 c o ) z low operating voltage: 2.5v to 6.5v z under-voltage lockout protection z 5v or 3.3v selectable over voltage lockout protecti on (aat1101/a only) aat1101/aat1101a/aat1101c: 500khz fixed aat1101b: 50k~1mhz programmable z internal power up sequence control z totem pole output z output short circuit protection z low dissipation current: 2.5ma (f=500khz, duty=50%) pin configuration top view 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 ie2 prdb out2 out3 out1 scp gnd shdn ie1 ie3 eo 1 prds chc ovs (osc) (nc) dd v ref v (tssop-16 package) general description the aat1101 series provide an integrated triple-channel pulse width modulation (pwm) solution for the power supply of lcd displays. these devices offer system engineers the fl exibility to tailor-make the power supply circuitry for sp ecific applications. each channel contains its own error amplifier, pwm comparator, dead?time control (dtc) and output driver. the under-voltage protection, over voltage protection, power sequence control, s hutdown control circuit, oscillator, short circuit protection, and voltage reference circuits are the common features of the three channels. the aat1101 series contain two exclusive boost circuits at ch1, ch3 and an exclusive buck_boost circuit at ch2. aat1101?s power up sequence initiates at ch1 then ch2 and fi nally ch3. aat1101a/c?s power up sequence acts in the order of ch2, ch3, and then ch1. aat1101b?s power up sequence starts from ch2, ch1, and then ch3. at the completion of the power up sequencing, the scp pin stays low and enters the wait state of short circuit protection. power up sequencing delay and short circuit protection delay are set by connecting a capacitor to the scp pin. furthermore, these devices can operate with supply voltage ranging from 2.5v to 6.5v and function efficiently in an environmen t with low power supply. with a minimum number of external components, the aat1101 series offer a simple and cost effective solution for tft lcd.
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 2 of 23 v 1.0 aat1101 series pin description pin # name i/o description 1 ie2 i inverted input of error amplifier 2 (ea2) 2 prdb o power ready output 3 dd v i supply voltage 4 out2 o channel 2 (ch2) output 5 out3 o channel 3 (ch3) output 6 out1 o channel 1 (ch1) output 7 gnd ground 8 scp i short circuit protection 9 ref v o reference voltage output 10* ovs i/o 3.3v or 5.0v over voltage selection and over voltage output 10** osc i/o frequency setting capacitor & resistor input 10*** nc n c 11 chc o channel control 12 prds i power ready set 13 eo1 i/o feedback input of error amplifier 1 (ea1) 14 ie1 i inverted input of error amplifier 1 (ea1) 15 ie3 i inverted input of error amplifier 3 (ea3) 16 shdn i shutdown control * ?g aat1101a only ** ?g aat1101b only *** ?g aat1101c only absolute maximum ratings characteristics symbol value unit supply voltage dd v 8 v input voltage ( ? ie ) i v dd v v output voltage o v dd v +0.3 v ch1, ch3 41 ? ? ?? 2 s , duty ?? 10%) +200 output peak current source ( w t ?? 2 s , duty ?? 10%) opeak i 200 ? ma operating free-air temperature range c t 20 ? ?
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 3 of 23 v 1.0 aat1101 series recommended operating conditions symbol min typ max unit supply voltage, dd v (with ovs r ) dd v 2.5 5.0 5.7 v supply voltage, dd v (without ovs r ) dd v 2.5 3.3 3.8 v supply voltage, dd v (aat1101b/c only ?^ dd v 2.5 3.3 6.5 v input voltage, ie1, ie3 13 i v 0.95 - 1.55 v input voltage, ie2 2 i v 0.4 - 1.0 v output voltage o v 0 - dd v v output current, 1 out i, 3 out i 13 o i - - 40 ? /+20 ma output current, 2 out i 2 o i - - 20 ? /+40 ma output current of error amplifier oe i - - 60 a operating free-air temperature c t 20 ?
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 4 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherwise specified) (see note 1) oscillator ?g?] aat1101/aat1101a/aat1101c ?^ oscillator ?g?] aat1101b only ?^ parameter test condition min typ max unit frequency osc f osc c = 130pf, osc r= 7 ? ? ? ? dd v = 2.5v to 6.5v, c t = 25 o c osc c = 130pf, osc r= 7 ? ? - - 5 10 % output source current osc i - 220 ? ? 180 ? a parameter test condition min typ max unit frequency osc f c t = 25 o c 400 500 600 khz frequency changes with c t t f ? - 5 10 % maximum duty cycle xon t 70 85 95 %
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 5 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherw ise specified) (cont.) under voltage (uv) and ov er voltage (ov) protection parameter test condition min typ max unit c t = 25 o c, aat1101/a/b 2.1 2.3 2.5 v uv upper threshold voltage uph v c t = 25 o c, aat1101c 2.0 2.2 2.4 v c t = 25 o c, aat1101/a/b 1.9 2.1 2.3 v uv lower threshold voltage upl v c t = 25 o c, aat1101c 1.7 1.87 2.05 v c t = 25 o c, aat1101/a/b 0.1 0.2 0.3 v uv hysteresis ( uph v? upl v) hys v c t = 25 o c, aat1101c 0.18 0.33 0.48 v ov 3.3v threshold voltage** 33 op v c t = 25 o c 3.8 4.1 4.4 v ov 5v threshold voltage** 5 op v c t = 25 o c, ovs connects a 56 ? **: aat1101/aat1101a only shutdown control parameter test condition min typ max unit shutdown release input voltage 2.0 - - v shutdown enable input voltage - - 0.5 v short circuit protection control parameter test condition min typ max unit 1 r v ch1 (eo1) 1.10 1.15 1.20 v 1 r v ch3 (ie3) 1.20 1.25 1.30 v input threshold voltage 2 r v ch2 (ie2) 0.67 0.70 0.73 v latch reset voltage by dd v vdd _ r v c t = 25 o c 0.8 1.5 1.8 v latch reset voltage by shdn shdn _ r v c t = 25 o c - - 0.5 v short-circuit detection threshold voltage 3 r v 1.20 1.25 1.30 v scp terminal source current scp i 6 . 2 ? ? 4 . 1 ? a
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 6 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherw ise specified) (cont.) power ready output parameter test condition min typ max unit power ready threshold voltage prth v c t = 25 o c 1.18 1.28 1.38 v power ready source current prth i 2 . 5 ? ? 8 . 2 ? a power-up sequence delay parameter test condition min typ max unit u nder voltage ?e power ready pr t pr t= ( ) . prds c - pr t - s under voltage ?e ch1 output pr t - pr t - s ch1 output ?e ch2 output 1 ch t 1 ch t= ( ) 25 19531 . scp c - 1 ch t - s ch2 output ?e ch3 output 2 ch t - 0.8 1 ch t - s ch3 output ?e chc set high 3 ch t - 0.8 1 ch t - s ch3 output ?e scp ready to protect 3 ch t - 0.8 1 ch t - s scp enable time scp t - 32 1 ch t - s
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 7 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherw ise specified) (cont.) power-up sequence delay (for aat1101a/aat1101c) parameter test condition min typ max unit u nder voltage ?e power ready pra t pr t= ( ) . prds c - pra t - s under voltage ?e ch2 output pra t - pra t - s ch2 output ?e ch3 output a 2 ch t 2 ch t =(19531.25)c scp - a 2 ch t - s ch3 output ?e ch1 output a 3 ch t - 0.8 a 2 ch t - s ch1 output ?e chc set high a 1 ch t - 0.8 a 2 ch t - s ch1 output ?e scp ready to protect a 1 ch t - 0.8 a 2 ch t - s scp enable time scpa t - 32 a 2 ch t - s power-up sequence delay (for aat1101b) parameter test condition min typ max unit u nder voltage ?e power ready prb t pr t= ( ) . prds c - prb t - s under voltage ?e ch2 output prb t - prb t - s ch2 output ?e ch1 output b 2 ch t 2 ch t =(19531.25)c scp - t ch2b - s ch1 output ?e ch3 output b 3 ch t - 0.8 b 2 ch t - s ch3 output ?e chc set hi b 1 ch t - 0.8 b 2 ch t - s ch3 output ?e scp ready to protect b 1 ch t - 0.8 b 2 ch t - s scp enable time scpb t - 32 b 2 ch t - s
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 8 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherw ise specified) (cont.) reference voltage parameter test conditions min typ max unit reference voltage ref v ma 1 i ref ? = , c t= 25 o c 1.237 1.250 1.263 v short-circuit output current os i = ref v0 30 ? ? 2 ? ma input voltage regulation ri v ma 1 i ref ? = , v dd = 2.5v to 6.5v - 2 5 mv output regulation ro v ma 1 . 0 i ref ? = to 1 ? ? = (note 2) - 15 25 mv ea1 (error amplifier for channel 1) parameter test condition min typ max unit input offset voltage io v unity gain - - 15 mv input bias current ib i i v = 0.95v to 1.55v - 10 20 na input voltage range ir v 0.95 - 1.55 v open-loop voltage gain vo a fb r = 200k [ - 60 - db unity-gain bandwidth 1 bw - 1 - mhz + os v v 1 . 0 v id = , a 60 i o ? = 1.2 - - output voltage swing ? os v v 1 . 0 v id ? = , ma 2 . 0 i o = - - 0.2 v output sink current + os i v 1 . 0 v id ? = , v 2 . 0 v o = 0.2 1.0 - ma output source current ? os i v 1 . 0 v id = , v 2 . 1 v o = 100 ? 60 ? a ch2 input reference voltage 4 r v c t= 25 o c 678 700 722 mv
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 9 of 23 v 1.0 aat1101 series electrical characteristics, dd v = 3.3v (unless otherw ise specified) (cont.) output stage parameter test condition min typ max unit ma 20 i o ? = (ch2) 2.90 3.05 - high-level output voltage oh v ma 40 i o ? = (ch1, ch3) 1.9 2.2 - v ma 20 i o = (ch1, ch3) - 0.2 0.4 low-level output voltage ol v ma 40 i o = (ch2) - 0.3 0.6 v rise time rise t pf 1000 c l = 130 ns fall time fall t pf 1000 c l = 50 ns operating current parameter test condition min typ max unit on dd i ? duty = 50%, no load - 2.5 4.5 ma supply current shdn i - - 20 a note 1: typical values of all parameters except for rt v (dev) and t f ? note 2: the deviation parameter rt v (dev) is defined as the difference between the maximum and minimum values obtained over the recommended free-air temperature range ( 20 ?
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 10 of 23 v 1.0 aat1101 series block diagram aat1101/aat1101a only eo1 ie 1 ea1 ea2 ie 2 ea3 ie 3 vref v ref uvc pw m c1 pw m c2 pw m c3 osc uvc vdtc1=0.9v en13 out1 en2 latch out2 en13 latch out3 sdc shdn gnd scp& seq ctrl latch ovs scp ref v v 25 . 1 v 3 r = v 25 . 1 v ref = 0.7v v r4 = v 25 . 1 v ref = 2a dd v shdn vdtc3=0.9v vdtc2=0.5v uvcn eo1 eo3 v 15 . 1 v 1 r = eo2 v 25 . 0 v 2 r = en1 prds chc dd v v 28 . 1 v prth = prdb uvc ovlo ovc sdc uvcn en2 uvlo v dd sdc en3 uvpr latch uvpr 4a eo2 eo3
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 11 of 23 v 1.0 aat1101 series block diagram aat1101b only eo1 ie 1 ea1 ea2 ie 2 ea3 ie 3 v ref v ref uvc pw m c1 pw m c2 pw m c3 osc uvc vdtc1=0.9v en13 out1 en2 latch out2 en13 latch out3 sdc shdn gnd scp& seq ctrl latch scp ref v v 25 . 1 v 3 r = v 25 . 1 v ref = 0.7v v r4 = v 25 . 1 v ref = 2a dd v shdn vdtc3=0.9v vdtc2=0.5v uvcn eo1 eo3 v 15 . 1 v 1 r = eo2 v 25 . 0 v 2 r = en1 chc prdb sdc uvcn en2 uvlo v dd sdc en3 latch uvpr eo2 eo3 prds dd v v 28 . 1 v prth = uvc uvpr 4a osc
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 12 of 23 v 1.0 aat1101 series block diagram aat1101c only eo1 ie 1 ea1 ea2 ie 2 ea3 ie 3 v ref v ref uvc pw m c1 pw m c2 pw m c3 osc uvc vdtc1=0.9v en13 out1 en2 latch out2 en13 latch out3 sdc shdn gnd scp& seq ctrl latch scp ref v v 25 . 1 v 3 r = v 25 . 1 v ref = 0.7v v r4 = v 25 . 1 v ref = 2a dd v shdn vdtc3=0.9v vdtc2=0.5v uvcn eo1 eo3 v 15 . 1 v 1 r = eo2 v 25 . 0 v 2 r = en1 prds chc dd v v 28 . 1 v prth = prdb uvc sdc uvcn en2 uvlo v dd sdc en3 uvpr latch uvpr 4a eo2 eo3
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 13 of 23 v 1.0 aat1101 series application circuit aat1101/aat1101a only aat1101/ aat1101a v p1 out1 out2 out3 v dd eo1 ie 1 sh dn c d l q v p3a c d l q v n2 c r l q vddp vddp vddp v dd scp c sc p gnd c r r r vp1 c ie 3 c r r vp3 prds shdn prdb vddp vdd ovs vddl v dd chc q q vp3 c prds c ie 2 v ref c r r vn2 c v ref q prdb r rovs *note 3 o ptional c ircuit 1 optional circuit 2 o ptional c ircuit 3 optional circuit 4 ? k ? k ? k *note 3: dd v =5v, connects a ovs r=56 ? k to dd v dd v =3.3v, connects no resistor to dd v note: all voltage and current values in block diagram (for aat1101/aat1101a) are nominal.
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 14 of 23 v 1.0 aat1101 series application circuit aat1101b only aat1101b v p1 out1 out2 out3 v dd eo1 ie1 shdn c d l q v p3a c d l q v n2 c r l q vddp vddp vddp v dd scp c scp gnd c r r r vp1 c ie3 c r r vp3 prds shdn prdb vddp vdd osc chc q q vp3 c prds c ie2 v ref c r r vn2 c vref q prdb r c osc osc r osc optional circuit 1 optional circuit 2 optional circuit 3 all voltage and current values in block diagram are nominal.
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 15 of 23 v 1.0 aat1101 series application circuit aat1101c only aat1101c v p1 out1 out2 out3 vdd eo1 ie1 shdn c d l q v p3a c d l q v n2 c r l q vddp vddp vddp vdd scp c scp gnd c r r r vp1 c ie3 c r r vp3 prds shdn prdb vddp vdd chc q q vp3 c prds c ie2 v ref c r r vn2 c vref q prdb r optional circuit 1 optional circuit 2 optional circuit 3
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 16 of 23 v 1.0 aat1101 series timing chart aat1101 v uph v dd v ref v prth v prds out2 out3 v p1 v p3a v p3 v n2 scp osc eo1 v r1 v r3 v r4 out1 dtc1 prdb
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 17 of 23 v 1.0 aat1101 series timing chart aat1101a/aat1101c v r4 vdd v p3 v uph out2 v p3a scp out1 v ref v prds out3 v p1 v n2 osc eo1 prdb v prth v r3 dtc1 v r1
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 18 of 23 v 1.0 aat1101 series timing chart aat1101b out3 out1 prdb
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 19 of 23 v 1.0 aat1101 series package dimension 16-pin tssop
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 20 of 23 v 1.0 aat1101 series package dimension (cont.) dimensions in millimeters deminsions in inches symbols min typ max min typ max a 1.05 1.10 1.20 0.041 0.043 0.047 a1 0.05 0.10 0.15 0.002 0.004 0.006 a2 ------ 1.00 1.05 ------ 0.039 0.041 b 0.20 0.25 0.28 0.008 0.010 0.011 c ------ 0.127 ------ ------ 0.005 ------ d 4.900 5.075 5.100 0.1930 0.1998 0.2000 e 6.20 6.40 6.60 0.244 0.252 0.260 e1 4.30 4.40 4.50 0.170 0.173 0.177 e ------ 0.65 ------ ------ 0.026 ------ l 0.50 0.60 0.70 0.020 0.024 0.028 y ------ ------ 0.076 ------ ------ 0.003 o 0 o 4 o 8 o 0 o 4 o 8 note: 1. controlling dimension: millimeters 2. lead frame material: olin c7025/eftec 64t 3. dimension ?d? does not include mold flash, tie bar burrs and gate burrs. mold flash, tie bar burrs and gate burrs shall not exceed 0.006? [0.15 millimeters] per end. dimension ?e1? does not include interlead flash. interlead flash shall not exceed 0.010? [0.25 millimeters] per side. 4. dimension ?b? does not include dambar protrusion. allowable dambar protrusion shall be 0.003? [0.08 millimeters] total in excess of the ?b? dimension at maximum material condition. dambar cannot be located on the lower radius or the foot. minimum space between protrusion and an adjacent lead to be 0.0028? [0.07 millimeters]. 5. tolerance: 0.010 [0.25 millimeters] unless otherwise specified. 6. otherwise dimension follow acceptable spec. 7. reference document: jedec spec mo-153.
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 21 of 23 v 1.0 aat1101 series tape and reel packing method: 2,500pcs/reel, 1 reel/box
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 22 of 23 v 1.0 aat1101 series tape and reel (cont.) note: 1. 10 sprocket hole pitch cumulative tolerance camber not to exceed 1 millimeter in 100 millimeters. 3. material: anti-static black advantek polystyrene. 4. 0 a and 0 b measured on a plane 0.3 millimeters above the bottom of the pocket. 5. 0 k measured from a plane on the inside bottom of the pocket to the top surface of the carrier. 6. pocket position relative to sprocket hole measured as true position of pocket, not pocket hole. part marking tssop16 top marking aat1101 xxxxxx tssop16 back marking yyww
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? ? advanced analog technology, inc . ? page 23 of 23 v 1.0 aat1101 series ordering information

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