Site Map • Contact Us
中文 • English

High-Performance Power ICs and Hall-Effect Sensors

• Search Allegromicro.com:
  
• Home
• Products
  • • Hall-Effect Sensors
    • Power ICs
    • Power Management
    • Sanken
  • Applications
    • Appliances
    • Automotive
    • LED Lighting and Displays
    • Office Automation
    • Portable
  • Part Numbers
  • Design Center
  • Packaging
  • Store
• Corporate
  • About Us
  • Contact Us
  • Environment
  • Facilities
  • Jobs
  • Legal
    • Terms and Conditions
      of Sale
  • Press Room
  • Quality
• Sales
  • Americas
  • Europe
  • Asia Pacific
  • Japan
• Site Map
• Feedback

Related Links:

Datasheets:
A6276: 16-Bit Serial-Input, Constant-Current Latched LED Driver (PDF)

Selection Guides:
Power Integrated Circuits,

LED Display Drivers,

Relay/Solenoid Drivers

when this product is updated

Technical Publications:
Constant-Current LED Drivers (PDF)

FAQs:
6276: 16-Bit Serial-Input, Constant-Current Latched LED Driver FAQ

Press Releases:
Serial-Input Latched LED Drivers with Programmable Constant-Current Outputs

A6276
16-Bit Serial-Input, Constant-Current Latched LED Driver

Features

• Up to 90 mA constant-current outputs
• Undervoltage lockout
• Low-power CMOS logic and latches
• High data input rate
• Functional replacement for TB62706BN/BF

Description

The A6276 is specifically designed for LED-display applications. Each BiCMOS device includes a 16-bit CMOS shift register, accompanying data latches, and 16 NPN constant-current sink drivers. Except for package style and allowable package power dissipation, the device options are identical.

The CMOS shift register and latches allow direct interfacing with microprocessor-based systems. With a 5 V logic supply, typical serial data-input rates are up to 20 MHz. The LED drive current is determined by the user selection of a single resistor. A CMOS serial data output permits cascaded connections in applications requiring additional drive lines. For inter-digit blanking, all output drivers can be disabled with an ENABLE input high. Similar 8-bit devices are available as the A6275.

Three package styles are provided: through-hole DIP (suffix A), surface-mount SOIC (suffix LW), and TSSOP with exposed thermal pad (suffix LP). In normal applications, the copper leadframe and low logic-power dissipation of the DIP allow it to sink maximum rated current through all outputs continuously over the operating temperature range (90 mA, 0.75 V drop, 85°C). All packages are lead (Pb) free, with 100% matte tin leadframe plating.

Functional Block Diagram

Complete Part Numbers

Part Number	Package Type	RoHS Compliant	Part Composition/ RoHS Data	Temperature	Comments	Samples	Distributor Stock
A6276SLW-T	24-lead SOIC	Yes	view data	-20 °C to  85 °C	not for new design	samples not available
A6276SLWTR-T	24-lead SOIC	Yes	view data	-20 °C to  85 °C	not for new design	samples not available
A6276EA-T	24-pin DIP	Yes	view data	-40 °C to  85 °C		Contact Local Sales Representative
A6276ELP-T	24-lead TSSOP	Yes	view data	-40 °C to  85 °C		Contact Local Sales Representative
A6276ELPTR-T	24-lead TSSOP	Yes	view data	-40 °C to  85 °C		Contact Local Sales Representative
A6276ELW-T	24-lead SOIC	Yes	view data	-40 °C to  85 °C		Contact Local Sales Representative
A6276ELWTR-T	24-lead SOIC	Yes	view data	-40 °C to  85 °C		Contact Local Sales Representative

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.