8m class dc to ac inverter page 4. preliminary 8M122565 specifications and applications information the erg 8M122565 (8m class) low profile dc to ac inverter is specifically designed to power the toshiba ltm07c388 lcd display module to a moderate brightness level from a +12 volt dc source. this low profile inverter features: less than 8 mm in height lcd module specific display compatible output connector firm specifications application information designed, manufactured and supported in the usa custom input and output voltages flexible system interface notebook display head compatible vin + - 1 2 3 vin + - 1 2 3 vin + - 1 2 3 3 dimming options (valid when the "c" jumper is removed) +vin 5% - 100% +vin approx. 5 ms* * should be selected to be compatible with lcd and display driver * value should be low enough to maintain minimum tube current at minimum brightness vmin* to +vin * vmin should be high enough to maintain minimum tube current 100 kohms* (1) (1) (1) note 1 input by-pass capacitor (25 uf - 100uf) may be required to reduce reflected ripple. voltage controlled pulse-width modulated controlled resistive controlled 8M122565 5/21/01 endicott research group, inc. 2601 wayne st., endicott ny 13760 607-754-9187 fax 607-754-9255 http://www.ergpower.com endicott research group, inc. 2601 wayne st., endicott ny 13760 607-754-9187 con1-1 vin(+) con1-2 gnd con1-3 control con1-4 n/c pin descriptions con2-1 acout con2-2 n/c con2-3 n/c con2-4 acout input connector 4 pins are 0.315" [8,00] long, 0.025" [0,63] square and are on 0.100" [2,54] centers. * valid when the "c" jumper is removed. 8m package package configuration c 3.58 [90,9] 2.35 [59,7] .55 [14,0] .55 [14,0] .12 [3,0] .79 [20,1] 1 2 3 4 4 1 output input .120 [3,05] dia.(2x) output connector jst sm02(8.0)b-bhs-1-tb 0
8M122565 8M122565 page 2. page 3. typical performance curves made in usa endicott research group, inc. endicott research group, inc. disable circuit after tube has been allowed to warm-up for 5 minutes specifications subject to change without notice. external disable circuit shown on page 3. 3.3 k 2.2 k 2n3906 2n3904 1 k +vin 12v control (pin 3) control 1n4148 valid with the "c" jumper removed s g n i t a r m u m i x a m e t u l o s b a g n i t a rl o b m y se u l a vs t i n u e g n a r e g a t l o v t u p n in i v2 . 3 1 + o t 3 . 0 -c d v e r u t a r e p m e t g n i t a r e p oo t0 7 + o t 0 - o c e r u t a r e p m e t e g a r o t sg t s t5 8 + o t 0 4 - o c s n o i t i d n o c g n i t a r e p o d e d n e m m o c e r g n i t a rl o b m y se u l a vs t i n u e g a t l o v t u p n in i v2 . 3 1 o t 0 . 6 +c d v s c i t s i r e t c a r a h c l a c i r t c e l e 5 2 = a t d n a c d s t l o v 0 0 . 2 1 = n i v d e t o n e s i w r e h t o s s e l n u o c c i t s i r e t c a r a h cl o b m y sn i mp y tx a ms t i n u t n e r r u c t u p n in i i-6 2 .0 3 .c d a y c n e u q e r f g n i t a r e p oo f7 32 47 4z h k e g a t l o v t u p t u o m u m i n i m) n i m ( t u o v0 0 4 1--s m r v y c n e i c i f f e h -8 7-% t n e r r u c t u p t u ot u o i-5- s m r a m e g a t l o v t u p t u o d a o l a g n i r e w o p n e h w ( d e c n e r e f e r e h t g n i t a l u m i s ) . y a l p s i d t u o v-5 8 4- s m r v t n e m e r i u q e r t n e r r u c t u p n i 3 n i p--7-c d a m -2% 0% 2% 4% 6% 8% 10% 12% 14% relative frequency 6.00 8.00 10.00 12.00 14.00 input voltage (vdc) relative frequency vs.input voltage 20% 40% 60% 80% 100% 120% 140% relative brightness 6.00 8.00 10.00 12.00 14.00 input voltage (vdc) relative brightness vs.input voltage 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 input power (watts) 6.00 8.00 10.00 12.00 14.00 input voltage (vdc) input power vs.input voltage 0.10 0.15 0.20 0.25 0.30 input current (adc) 6.00 8.00 10.00 12.00 14.00 input voltage (vdc) input current vs.input voltage
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