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PCA9532

Features: 16 LED drivers (on, off, flashing at a programmable rate)2 selectable, fully programmable blink rates (frequency and dutycycle) between 0.625 and 160 Hz (6.4 seconds and 6.25 milliseconds)256 brightness stepsInput/outputs not used as LED drivers can be used as regular GPIOsnternal oscill...

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SeekIC No. : 004456287 Detail

PCA9532: Features: 16 LED drivers (on, off, flashing at a programmable rate)2 selectable, fully programmable blink rates (frequency and dutycycle) between 0.625 and 160 Hz (6.4 seconds and 6.25 milliseconds)...

PCA9532 Data Sheet

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Part Number:
PCA9532
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

16 LED drivers (on, off, flashing at a programmable rate)
2 selectable, fully programmable blink rates (frequency and duty
cycle) between 0.625 and 160 Hz (6.4 seconds and 6.25 milliseconds)
256 brightness steps
Input/outputs not used as LED drivers can be used as regular GPIOs
nternal oscillator requires no external components
I2 C-bus interface logic compatible with SMBus
nternal power-on reset
Noise filter on SCL/SDA inputs
Active-LOW reset input
16 open drain outputs directly drive LEDs to 25 mA
Controlled edge rates to minimize ground bounce
No glitch on power-up
Supports hot insertion
Low stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
0 to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
150 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Packages offered: SO24, TSSOP24, HVQFN24


Pinout

Connection Diagram


Specifications

symbol partameter conditions MIN MAX unit
VDD Supply voltage   -0.5  6.0  V
VI/O DC voltage on an I/O   VSS- 0.5
 5.5  V
I I/O DC output current on an I/O    - +25  MA

ISS		 upply current    - 100  MA
Ptot Total power dissipation    - 400  mW
Tstg Storage temperature range    -65 +150  °C
Tamb Operating ambient temperature    -40  +85 °C



Description

   The PCA9532 is a 16-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications. The PCA9532 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM.

   The LED brightness of PCA9532 is controlled by setting the blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty cycle to vary the amount of time the LED is on and thus the average current through the LED.




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