4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
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An Overview Study on 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
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4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers
- 5. Typical Operating Characteristics PEAK-OUTPUT SOURCE CURRENT vs. TEMPERATURE (HIGH-CURRENT MODE) PEAK-OUTPUT SOURCE CURRENT vs. SUPPLY VOLTAGE (HIGH-CURRENT MODE)
- 9. Standard Driver Connection to Monocolor and RGY 8 x 8 Displays Monocolor 1-Bit-per-Pixel, 96-Pixel x 32-Pixel Display Example
Notas do Editor
- Welcome to the training module on Maxim 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers. This training module provides an overview on 4-Wire Serially Interfaced 8 x 8 Matrix Graphic LED Drivers.
- The MAX6960–MAX6963 are compact cathode-row display drivers that interface microprocessors to 8 x 8 dot matrix red, green, and yellow (R,G,Y) LED displays through a high-speed 4-wire serial interface. It drive two mono-colour 8 x 8 matrix displays, or a single RGY 8 x 8 matrix display with no external components. The driver can also be used with external pass transistors to control red, green, blue (RGB) and other displays at higher currents and voltages. It features open- and short-circuit LED detection, and provide both analog and digital tile segment current calibration to allow 8 x 8 displays from different bratches to be compensated or colour matched. The MAX6960 drives mono-colour or RGY displays with two-step or four-step intensity color.
- The MAX6960 is a multiplexed, constant-current LED driver intended for high-efficiency indoor signs and message boards. It can be used for applications requiring higher peak segment currents, and in RGB panels needing a higher driver voltage for the blue LEDs. the MAX6960 can be used with external drive transistors to control anode-row displays, with all driver features including pixel-level intensity control.
- These graphs illustrate typical operating characteristics of the device, PEAK-OUTPUT SOURCE CURRENT vs SUPPLY VOLTAGE and PEAK-OUTPUT SOURCE CURRENT vs TEMPERATURE.
- Here we shows few of the Terminologies that are frequently used in LED Driving control, like Pixel, Monocolor, Bicolor, Tricolor, RGY, RGB.
- Display intensity control can be achieved through any of the listed levels.
- The software control for MAX6960 allow 2 or 4 planes of display. Animation timing is inbuilt to this device sequencing 2/4 planes automatically. The Frame rate is adjustable to as fast as 63s for advertising sequencing.
- The MAX6960 is an LED display driver capable of driving either two monocolor 8 x 8 cathode-row matrix digits, or a single RGY 8 x 8 cathode-row matrix digit. The architecture of the driver is designed to allow a large graphic display panel to be driven easily by multiple MAX6960s using 8 x 8 cathode-row matrix digits. The MAX6960s in a display-driver design not only share the host 4-wire interface, but they also share a local 3-wire interface that is not connected to the host. The local 3- wire interface works with the user’s driver settings to configure all the MAX6960s to appear to the host interface as one continuous memory-mapped driver.
- The MAX6960 has inbuilt Fault Detection Features, it has LED fault detection and Over Temperature Fault Detection. LED fault detection has t he fault and device ID register use 3 bits to flag and distinguish open-circuit (open flag), short circuit (short flag), over-temperature (OT flag) , and a fourth flag (fault flag). Fault flag is an OR of the open flag, short flag and OT Flag. When the OT trips, the MAX6960 shutdown bit in the configuration register is cleared, and the driver goes into shutdown and Data is not lost. The fault and device ID register is cleared on powerup, and can also be cleared by writing to it. The fault flags are NOT cleared by a read
- Here explains about setting LED Drive current. It can drive up to 40mA of current it can be done by RISET0 and RISET1 pin.
- MAX6960 can be used to Drive RGB Displays. MAX6960 can drive an 8 x 16 LED matrix. one MAX6960 can drive two 8 x 8 monocolor digits or one 8 x 8 RGY digit. A MAX6960 cannot directly drive an 8 x 8 RGB display digit. The MAX6960 drivers provide 3 x 2 = 6 bits of color control to a RGB panel.
- Thank you for taking the time to view this presentation on MAX6960. If you would like to learn more or go on to purchase some of these devices, you may either click on the part list link, or simple call our sales hotline. For more technical information you may either visit the Maxim Integrated Products site, if you would prefer to speak to someone live, please call our hotline number, or even use our ‘live chat’ online facility.