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PCA9532PW,112

Led Driver, 16 Outputs, 2.3V-5.5V in, 400kHz switch, 200mA out, TSSOP-24

NXP PCA9532PW,112

Image is for illustrative purposes only. Please refer to product description.

Manufacturer:
NXP NXP
Manufacturer Part No:
PCA9532PW,112
Order Code:
2400469
Technical Datasheet:
PCA9532PW,112   Datasheet
See all Technical Docs

Product Information

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:
-

:
2.3V

:
5.5V

:
-

:
200mA

:
400kHz

:
16Outputs

:
SMD

:
TSSOP

:
24Pins

:
-40°C

:
85°C

:
-

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-

:
MSL 1 - Unlimited
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Technical Docs (1)

Product Overview

The PCA9532PW,112 is a 16-bit I²C-bus LED Dimmer optimized for dimming LEDs in 256 discrete steps for red, green and blue (RGB) colour mixing and back light applications. The LED dimmer contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The LED brightness is controlled by setting the blink rate high enough (>100Hz) 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. To blink LEDs at periods greater than 1.69second the bus master (MCU, MPU, DSP, chip set, etc.) must send repeated commands to turn the LED on and off as is currently done when using normal I/O expanders like the semiconductors.
  • Input/output not used as LED drivers can be used as regular GPIOs
  • Internal oscillator requires no external components
  • Internal power-on reset
  • Noise filter on SCL/SDA inputs
  • Active low reset input
  • 16 Open-drain outputs directly drive LEDs to 25mA
  • Edge rate control on outputs
  • No glitch on power-up

Applications

LED Lighting

Warnings

All input and output pins are protected against ESD under normal handling. When handling ensure that the appropriate precautions are taken.
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