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PCA9956BTWY +BOM

LED Driver 21000uA Supply Current 38-Pin HTSSOP EP T/R

PCA9956BTWY Information

Description

The PCA9956BTWY is an I2C-based LED controller from NXP, designed for constant current control of up to 16 LEDs. It features a 16-bit PWM register with auto-incremented data handling, allowing for precise dimming control. The device has 16 open-drain outputs with 7 mA sink capability and four address select pins for up to 16 devices on the I2C bus. The PCA9956BTWY is suitable for various applications such as automotive lighting control, industrial automation, home automation, LED display control, signage and lighting, building automation, medical equipment, consumer electronics, retail displays, and entertainment lighting. It offers a power-on reset with state machine and an internal oscillator with two external capacitors. In summary, the PCA9956BTWY is a versatile I2C-based LED controller for constant current control of LEDs in various applications.

Features

The PCA9956BTWY features:

  • 16-bit I2C-bus LED dimming controller
  • 16 open-drain outputs with 7 mA sink capability
  • 4 address select pins for up to 16 devices on the I2C-bus
  • Auto-incremented PWM register data handling
  • Power on reset with state machine
  • Internal oscillator with two external capacitors

These features make it suitable for various applications such as automotive lighting control, industrial automation, home automation, LED display control, and more.

Package

The package type of PCA9956BTWY is Small Outline Packages (SOP).

Pinout

The PCA9956BTWY has a pin count of 20 pins. The functions of each pin are:

  • VCC: Power supply (5V)
  • GND: Ground
  • SDA: I2C data line
  • SCL: I2C clock line
  • ADD0-3: Address select pins
  • OUT0-15: Open-drain output pins for LED control

These pins allow the PCA9956BTWY to be used as a 16-bit I2C-bus LED dimming controller, with 16 open-drain outputs that can sink up to 7 mA of current.

Manufacturer

The manufacturer of the PCA9956BTWY is NXP Semiconductors, a leading global semiconductor company that provides high-performance mixed-signal solutions for various industries such as automotive, industrial, consumer electronics, and more.

Applications

According to the product information, the PCA9956BTWY has the following application areas:

  • Automotive lighting control
  • Industrial automation
  • Home automation
  • LED display control
  • Signage and lighting applications
  • Building automation
  • Medical equipment
  • Consumer electronics
  • Retail displays
  • Entertainment lighting

Equivalent

Based on NXP's product portfolio, some equivalent products to PCA9956BTWY are:

  • PCA9655
  • PCA9641
  • PCA9632

These devices share similar features such as I2C bus interface, LED dimming capabilities, and address select pins. However, please note that each device may have slightly different specifications or pinouts, so it's essential to review the datasheets for specific requirements.

Specifications

Supply Voltage [min] (V) 2.3 Supply Voltage [max] (V) 5.5
Ambient Operating Temperature (Min to Max) (℃) -40 to 85 Product Category LED Lighting Drivers
Mounting Style SMD/SMT Number of Outputs 24 Output
Output Current 57 mA Input Voltage, Min 3 V
Input Voltage, Max 5.5 V Topology Boost, Buck
Operating Frequency 31.25 kHz Output Voltage Adjustable
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Features I2C Control Height 1.1 mm
Input Voltage 3 V to 5.5 V Length 9.7 mm
Moisture Sensitive Yes Number of Channels 24 Channel
Operating Supply Voltage 3 V to 5.5 V Operating Temperature Range - 40 C to + 85 C
Output Type Constant Current Pd - Power Dissipation 2.95 W
Product Constant Current LED Drivers Product Type LED Lighting Drivers
Factory Pack Quantity 2500 Subcategory Driver ICs
Supply Current - Max 21 mA Width 4.4 mm
Part # Aliases 935306324518 Unit Weight 0.003645 oz
Package/Case HTSSOP-38

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Ratings and Reviews

More
I
I**h 11/25/2021

Fast delivery. Everything OK.

18
C
C**a 09/27/2021

It didn't come. The order is not executed.

19
K
K**n 11/17/2020

okkkkkk,100%%%%%%%%%%%%

1
Z
Z**y 10/21/2020

Good watch 3in1. Fast shipping

6

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PCA9956BTWY Datasheet PDF

Preliminary Specification PCA9956BTWY PDF Download

PCA9956BTWY PDF Preview

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