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PCA9532 Datasheet PDF

Part Series:PCA9532 Series
Category:LED Drivers
Description:NXP PCA9532PW,112 Led Driver, 16Outputs, 2.3V-5.5V in, 400kHz switch, 200mA out, TSSOP-24
Document:PCA9532PW,112 Datasheet PDF (158 Pages)

PCA9532 Datasheet PDF LED Drivers

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PCA9532PW,112 - NXP Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
400 kHz
Number of Pins
24 Pin
Case/Package
TSSOP-24
Number of Outputs
16 Output
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PCA9532PW,112 - NXP Function 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
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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