• Part: TM1803
  • Description: 3-bit LED drive control dedicated circuit
  • Manufacturer: Titan Micro
  • Size: 195.31 KB
Download TM1803 Datasheet PDF
Titan Micro
TM1803
TM1803 is 3-bit LED drive control dedicated circuit manufactured by Titan Micro.
Feature z z z z z Use high-voltage power CMOS process Output voltage is up to 24V Brightness adjustment circuit(256) Serial-shift and cascade Interface Oscillation mode:Built-in RC oscillator, signal clock synchronization. While accepting the pleted data of this module, data can be auto-shaped and transmitted to next chip via data output pin. z z Built-in power-on reset circuit PWM control side can achieve 256 adjustment, scan frequency not less than 400hz /s z z The pletion of data reception and decoding by a signal line When the refresh rate of 30 frames/ s, the number of cascade is not less than 512 on low-speed mode. And it is not less than 1024 on high-speed mode. z z SOP8 package Data transmission speed can be 400Kbps and 800Kbps two modes ©Titan Micro Electronics .titanmec. Page 1 of 6 3bit LED drive control dedicated circuit PIN Configuration (Top View) TM1803 OUTR OUTG OUTB GND 1 2 3 4 8 7 6 5 VDD SET DIN DO PIN identifications: PIN name OUTR OUTG OUTB VSS DOUT DIN SET VDD Description Red PWM Control Output Green PWM Control Output Blue PWM Control Output Logical gnd ; system gnd Data Output Data Input Mode setting 1)SET to VDD:Low-speed mode 2)SET flaoting: High-speed mode Logic Power ,5V±10% PIN NO. 1 2 3 4 5 6 7 8 Electrical parameters Limit parameter(Ta = 25℃, Vss = 0 V) Parameter Logic Supply Voltage Output voltage Logic input voltage LED Driver Output Current Power loss Operating Temperature Storage Temperature Symbol VDD VOUT VI1 IO1 PD Topt Tstg Range -0.5 ~+7.0 24 -0.5 ~ VDD + 0.5 80 400 -40 ~ +80 -65 ~+150 Unit V V V m A m W ℃ ℃ ©Titan Micro Electronics .titanmec. Page 2 of 6 3bit LED drive control dedicated circuit The normal scope of work(Ta = -20 ~ +70℃,Vss = 0 V) Parameter Logic Supply Voltage Hign-level input voltage Low-level input voltage Symbol VDD VIH VIL 0.7 VDD 0 Min Typical 5 VDD 0.3 VDD Max unit V V V Test Conditions - Electrical characteristics(Ta = -20 ~ +70℃,VDD = 4.5 ~ 5.5 V, Vss = 0 V) Parameter...