LED Driver with I²C Compatible and 3-wire Serial Interface for 7×17 LEDs in Dot Matrix - BD26503GUL

BD26503GUL and BD26503KS2 is “Matrix LED Driver” that is the most suitable for the cellular phone and home electric appliances. It can control 7x17 (119 dot) LED Matrix by internal 7-channel PMOS SWs and 17-channel LED drivers. It can control the luminance and firefly lighting of the LED matrix by the setting of the internal register. It supports SPI and I²C interface.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD26503GUL-E2 Active VCSP50L3 2500 2500 Taping Yes
Topology Constant Current
Number of Outputs 17
Vin(Min.)[V] 2.7
Vin(Max.)[V] 5.5
Output Current(Max.)[mA] 510.0
Vout(Max.)[V] 5.5
LED Configuration 7 x 17 Matrix
Auto Luminous Control No
Synchronous No
Dimming 4-Bit DC / PWM
Iq(Typ.)[mA] 2.1
Ishutdown(Typ.)[µA] 0.0
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・LED Matrix driver (7x17)
    ・ The current drivers can drive 0 to 20mA current with “16” step (for every dot).
    ・ The current drivers can drive 30mA/Line.
    ・ 64 steps of the luminance control by PWM (common setting for all dots)
    ・ Continuous lighting function (TDMA off ) for LED14 to LED17
    ・ A/B 2-side map for each dot.
    ・Automatic Slope function
    ・8-direction automatic scroll function.
    ・SPI and I²C BUS FS mode(max 400kHz)Compatibility
    ・Thermal shutdown (TSD)
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BU16501KS2 LED Driver with I²C Compatible and 3-wire Serial Interface
for 8x16 LEDs in Dot Matrix
SQFP-T52M   inquiry
New Products:
Technical Data
Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.