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

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.

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Product Detail

 
Part Number | BD26503GUL-E2
Status | Active
Package | VCSP50L3
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

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

LDO

No

Auto Luminous Control

No

GPIO

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

Package Size [mm]

3.6x3.6 (t=0.55)

Features:

・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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Design Resources

 

Documents

White Paper

  • Cutting-Edge Web Simulation Tool “ROHM Solution Simulator” Capable of Complete Circuit Verification of Power Devices and Driver ICs
  • ROHM Automotive Lighting Solutions

Technical Articles

Schematic Design & Verification

  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Resistance

Packaging & Quality

Manufacturing Data

  • Factory Information

Environmental Data

  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)