Datasheet TM1637 (Titan Micro Electronics) - 9

LED Drive Control Special Circuit
TM1637
Electrical parameter 1
、
Limit parameter (Ta = 25
℃
, Vss = 0 V) Parameters Symbol Range Unit
Logic power supply voltage VDD -0.5 ～+7.0 V Logic input voltage VI1 -0.5 ～ VDD + 0.5 V LED and SEG drive sink current IO1 50 mA LED and GRID drive source IO2 200 mA current Power loss PD 400 mW Work temperature Topt -40 ～ +85 ℃ Storage temperature Tstg -65 ～+150 ℃
2
、
Normal working range (Ta = -40
～
+85
℃
, Vss = 0 V) Minimu Maximu Test Parameters Symbol Typical Unit m m condition
Logic power supply voltage VDD 5 V - High-level input voltage VIH 0.7 VDD - VDD V - Low-level input voltage VIL 0 - 0.3 VDD V -
3
、
Electrical character (Ta = -40 - +85
℃
, VDD = 4.5 - 5.5 V, Vss = 0 V) Minim Typic Maxi Parameters Symbol Unit Test condition um al mum
GRID1~GRID6， Ioh1 80 120 180 mA GRID drive source Vo = vdd-2V current GRID1~GRID6， Ioh2 80 140 200 mA Vo = vdd-3V SEG1~SEG8 SEG drive sink current IOL1 20 30 50 mA Vo=0.3V DOUT pin output low Idout 4 - - mA Vo = 0.4V，dout current High-level output current Vo = VDD – 3V， Itolsg - - 5 % tolerance GRID1～GRID6 Output pull down resistor RL 10 KΩ K1~K2 9 ©Titan Micro Electronics www.titanmec.com V2.4