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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 25MA 28TSSOP
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：2.3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：5.5V
- Current - Output / Channel：25mA
- Frequency：100kHz ~ 1MHz
- Dimming：I2C
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
- Grade：-
- Qualification：-
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Overview
The PCA9635PW/S911,118 is a 16-channel LED driver IC from NXP Semiconductors, designed for I2C-bus controlled lighting applications. It operates within a supply voltage range of 2.3 V to 5.5 V and supports output currents up to 25 mA per channel. The device features an I2C interface with operating frequencies from 100 kHz to 1 MHz. It is housed in a TSSOP-28 package and functions across a temperature range of -40°C to +85°C. This variant is marked as discontinued.
Feature Summary
- Provides independent control for 16 LED channels via I2C bus communication
- Supports programmable PWM dimming for precise brightness adjustment
- Features open-drain outputs capable of sinking up to 25 mA per channel
Applications
- LCD backlight control systems
- Ambilight lighting effects
- General LED illumination management
Procurement Notes
This specific part number is listed as discontinued by the manufacturer. Verification of availability through authorized distributors or secondary markets is required. Ensure that any sourced units are genuine and match the original specifications, as end-of-life products may have limited supply chains or alternative packaging options.
Selection Notes
Consider the PCA9635PW,118 as an active alternative if available, as it shares similar electrical characteristics and pinout compatibility. Evaluate whether the discontinuation impacts long-term project viability. Compare against newer models like the PCA9685 if additional features such as higher resolution PWM or staggered switching are required for the application.
Part Context
The PCA9635 series belongs to NXP's family of Fm+ I2C-bus LED drivers. These devices are engineered for efficient LED control in consumer electronics and display technologies. The PW suffix indicates the TSSOP-28 surface-mount package, while the /S911 designation refers to specific tape and reel packaging configurations used for automated assembly processes.
Replacement Considerations
PCA9635PW,118 is a direct functional equivalent currently in production. For applications requiring enhanced features, the PCA9685 offers 12-bit PWM resolution and staggered switching capabilities. Verify form, fit, and function compatibility before substituting components in existing designs.
