TLC59108,pdf(8-BIT Fm+ I2C-BUS

特性

• Eight LED Drivers (Each Output Programmable
  At Off, On, Programmable LED Brightness,
  Programmable Group Dimming/Blinking Mixed
  With Individual LED Brightness
• Eight Constant-Current Open-Drain Output
  Channels
• 256-Step (8-Bit) Linear Programmable
  Brightness Per LED Output Varying From Fully
  Off (Default) to Maximum Brightness Using a
  97-kHz PWM Signal
• 256-Step Group Brightness Control Allows
  General Dimming (Using a 190-Hz PWM Signal
  From Fully Off to Maximum Brightness (Default)
• 256-Step Group Blinking With Frequency
  Programmable From 24 Hz to 10.73 s and Duty
  Cycle From 0% to 99.6%
• Four Hardware Address Pins Allow 14 TLC59108
  Devices to be Connected to the Same I²C Bus
• Four Software-Programmable I²C Bus
  Addresses (One LED Group Call Address and
  Three LED Sub Call Addresses) Allow Groups
  of Devices to be Addressed at the Same Time
  in Any Combination. For Example, One
  Register Used for All Call, so That All the
  TLC59108 Devices on the I²C Bus Can be
  Addressed at the Same Time, and the Second
  Register Can be Used for Three Different
  Addresses so That One-Third of All Devices
  on the Bus Can be Addressed at the Same Time
  in a Group.
• Software Enable and Disable for I²C Bus
  Address
• Software Reset Feature (SWRST Call) Allows
  Device to be Reset Through I²C Bus
• Up to 14 Possible Hardware-Adjustable
  Individual I²C Bus Addresses Per Device, So
  That Each Device Can Be Programmed
• Open-Load/Overtemperature Detection Mode
  to Detect Individual LED Errors
• Output State Change Programmable on the
  Acknowledge or the Stop Command to Update
  Outputs Byte by Byte or All at the Same Time
  (Default to Change on Stop)
• Output Current Adjusted Through an External
  Resistor
• Constant Output Current Range: 10 mA to 120 mA
• Maximum Output Voltage: 17 V
• 25-MHz Internal Oscillator Requires No External
  Components
• 1-MHz Fast Mode Plus Compatible I²C Bus
  Interface With 30-mA High Drive Capability on
  SDA Output for Driving High-Capacitive Buses
• Internal Power-On Reset
• Noise Filter on SCL/SDA Inputs
• No Glitch on Power Up