AS1130-BTST

AS1130-BTST is a 132 single LEDs cross-plexing driver with scrolling function. The device can be programmed via an I²C compatible interface. It offers a 12x11 LED-matrix with 1/12 cycle rate. The required lines to drive all 132 LEDs are reduced to 12 by using the cross-plexing feature optimizing space on the PCB. The whole LED-matrix driving 132 LEDs can be analogue dimmed from 0mA to 30mA in 256 steps (8 bit). Additionally each of the 132 LEDs can be dimmed individually with 8-bit allowing 256 steps of linear dimming. To reduce CPU usage up to 6 frames can be stored with individual time delays between frames to play small animations automatically. The AS1130 operates from 2.7V to 5.5V and features a very low shutdown and operational current. The device offers a programmable IRQ pin. The AS1130 is ideal for dot matrix displays in mobile phones, personal electronics and toys application.

• CMOS logic levels, 0x30 - 0x37 address
• Worlds lowest PCB real estate vs LED count, up to 132 LEDs in a 12x11 matrix
• 16.7M full colour matrix with white balance, 8bit PWM per LED and current control per line
• Reduces MCU load and increases battery lifetime, error detection and correction
• Identifies defect LEDs and “removesâ€? them from the matrix
• Operating supply current is 340mA typ (All current sources turned ON, at VDD = 5.5V)
• Oscillator frequency range from 0.9 to 1.1MHz (TAMB = 25°C)
• Display scan rate is 0.33KHz typical (TAMB = 25°C)
• Reset pulse width low is 500ns minimum (TAMB = 25°C)
• 28-pin TSSOP package, operating temperature range from -40 to 85°C