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CAT9532: I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming

Overview
Specifications
Packages
Applications
Datasheet: I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming
Rev. 4 (205kB)
»View Material Composition
»Product Change Notification (7)
Product Overview
Product Description
The CAT9532 is a CMOS device that provides 16-bit parallel input/output port expander optimized for LED dimming control. The CAT9532 outputs can drive directly 16 LEDs in parallel. Each individual LED may be turned ON, OFF, or blinking at one of two programmable rates. The device provides a simple solution for dimming LEDs in 256 brightness steps for backlight and color mixing applications. The CAT9532 is suitable in I2C and SMBus compatible applications where it is necessary to limit the bus traffic or free-up the bus master's timer.

The CAT9532 contains an internal oscillator and two PWM signals that drive the LED outputs. The user can program the period and duty cycle for each individual PWM signal. After the initial set-up command to program the Blink Rate 1 and Blink Rate 2 (frequency and duty cycle), only one command from the bus master is required to turn each individual open drain output ON, OFF, or cycle at Blink Rate 1 or Blink Rate 2. Each open drain LED output can provide a maximum output current of 25 mA. The total current sunk by all I/Os must not exceed 200 mA.
Features   Benefits
     
  • I/Os can be Used as GPIOs
 
  • Suitable for control, or data transfer, and LED control
  • 16 LED Drivers with Dimming Control
   
  • 256 Brightness Steps
   
  • 16 Open Drain Outputs Drive 25 mA Each
   
  • 2 Selectable Programmable Blink Fates:
    - Frequency: 0.593 Hz to 152 Hz
    - Duty Cycle: 0% to 99.6%
   
  • 400 kHz I2C Bus Compatible
   
  • 2.3 V to 5.5 V Operation
   
  • 5.0 V Tolerant I/Os
   
  • Active Low Reset Input
   
Applications   End Products
  • Backlighting
  • RGB color mixing
  • Sensors control
  • Power switches, push-buttons
 
  • Alarm systems
Technical Documentation & Design Resources
Tutorials (1) Package Drawings (3)
Data Sheets (1)  
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
CAT9532HV6I-GT2 Active
Pb-free
Halide free
I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming TQFN-24 510AG 1 Tape and Reel 2000 $1.3333
CAT9532WI Last Shipments
Pb-free
Halide free
I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming SOIC-24W 751BK 3 Tube 31  
CAT9532WI-T1 Last Shipments
Pb-free
Halide free
I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming SOIC-24W 751BK 3 Tape and Reel 1000  
CAT9532YI Lifetime
Pb-free
Halide free
I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming TSSOP-24 948AR 1 Tube 62  
CAT9532YI-T2 Active
Pb-free
Halide free
I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming TSSOP-24 948AR 1 Tape and Reel 2000 $1.2666
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 4 to 8
Mouser   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Arrow   (Fri Jul 10 15:20:31 MST 2015) : 13237
Market Leadtime (weeks) : Contact Factory
Arrow   (Fri Jul 10 15:20:32 MST 2015) : 15825
PandS   (2015-07-09) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 8 to 12
FutureElectronics   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
Datasheet: I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming
Rev. 4 (205kB)
»View Material Composition
»Product Change Notification (7)
Product Overview

Product Compliance Status Description I/O Cascadable VCC Min (V) VCC Max (V) Interrupt Output I/O Pullups LED Blink/PWM IO Min (mA) Package Type
 Pb-free 
 Halide free 
 Active     I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming   16   8 Slave ID Addresses   2.3   5.5   No   No   Yes   25   TQFN-24 
 Pb-free 
 Halide free 
 Active     I/O Port Expander, I2C / SMBus, 16-Bit, with LED Dimming   16   8 Slave ID Addresses   2.3   5.5   No   No   Yes   25   TSSOP-24 
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