The feature description
TM1818 is LED display driver IC design, its built-in CMOS shift registers and latches function, can be parallel serial input data into output data format.TM1818 with 16 current source, can be in each output port 2 ~ 60 ma constant current to drive the leds, each channel output can be obtained after the sub OUT the driver larger output current, and when the environment changes, little impact on the output current.At the same time can choose different resistance (REXT) TM1818 to adjust the resistance of the current size of each output port, therefore, can accurately control the LED luminous brightness, suitable for high quality white balance display driver module.This product is excellent performance, reliable in quality.
Functional features
16 constant-current source output channel
current output size does not change because of output load voltage variation
constant current current range value, 2 ~ 60 ma @ VDD = 5 v.2 ~ 45 ma @ VDD = 3.3 V
extremely accurate current output values
(channel and channel) maximum error: plus or minus 1.5% or less
(chip and chip) maximum error: plus or minus 2.0% or less
by regulating the external resistors, precision can be set current output values
up to 25 MHZ clock frequency
working voltage: 3.0 V to 5.5 V
packaging forms: SSOP24, QSOP24
Applicable fields:
indoor and outside, single, double and full color LED display (dynamic and static)