PCA9955TW,118

$2.28

Description：IC LED DRV LIN PWM 57MA 28HTSSOP
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9f2910e76d0e Category: LED Drivers IC Brand: NXP USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC LED DRV LIN PWM 57MA 28HTSSOP
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Linear
Topology：-
Internal Switch(s)：Yes
Number of Outputs：16
Voltage - Supply (Min)：3V
Voltage - Supply (Max)：5.5V
Voltage - Output：40V
Current - Output / Channel：57mA
Frequency：-
Dimming：PWM
Applications：Backlight
Operating Temperature：-20°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：28-HTSSOP
Grade：-
Qualification：-

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PCA9955TW,118

Overview

The PCA9955TW/Q900,118 is a 16-channel constant-current LED driver IC designed for linear PWM dimming applications. It operates on an FM+ I2C bus interface and delivers up to 57 mA per channel with a maximum output voltage of 40 V. The device supports a supply voltage range from 3 V to 5.5 V and is housed in a 28-HTSSOP package with exposed pad. Certified to AEC-Q100 standards, it functions within a temperature range of -40°C to 85°C TA.

Feature Summary

Integrates internal PWM dimming control to off-load host processors
Supports FM+ I2C bus interface for system communication
Provides linear current regulation for consistent LED brightness

Applications

LCD backlighting systems
Keypad backlights for handheld devices
LED status indication in automotive steering wheels

Procurement Notes

This component has reached end-of-life status and is no longer manufactured by NXP Semiconductors. Procurement should focus on verifying the availability of qualified replacement parts that maintain form, fit, and function compatibility. Designers must review official substitution guidelines to ensure electrical parameters and pinout configurations align with existing system requirements before finalizing sourcing decisions.

Selection Notes

Engineers should evaluate the PCA9952TW/Q900,118 as a primary alternative due to its similar channel count and interface specifications. Selection criteria must prioritize AEC-Q100 compliance for automotive environments and verify that the replacement part supports the required 57 mA output current. Compatibility with the existing 28-pin HTSSOP footprint and I2C addressing scheme is essential for seamless integration into legacy designs without hardware modifications.

Part Context

The PCA9955 series belongs to NXP's portfolio of intelligent LED drivers featuring integrated PWM control. These components are engineered to simplify system architecture by handling dimming sequences directly. The TW suffix indicates a specific tape and reel packaging configuration suitable for automated surface-mount assembly processes in high-volume manufacturing environments.