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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 25MA 28TSSOP
- 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)：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,118 is a 16-channel LED driver IC manufactured by NXP Semiconductors. It features an I2C interface supporting frequencies from 100 kHz to 1 MHz. The device operates on a supply voltage range of 2.3 V to 5.5 V with a maximum output voltage of 5.5 V. Each channel provides a sink current of 25 mA. It utilizes a boost topology and is housed in a TSSOP-28 package. The component supports a power dissipation of 400 mW and functions within a temperature range of -40 °C to +85 °C.
Feature Summary
- Provides independent control for 16 LED channels via an I2C bus interface.
- Supports Fast-mode Plus (Fm+) operation for high-speed communication up to 1 MHz.
- Features internal boost topology for driving LEDs with varying voltage requirements.
- Includes programmable PWM controllers for individual channel brightness adjustment.
Applications
- LED backlighting systems
- General LED illumination drivers
- Embedded lighting control interfaces
Procurement Notes
Verify the specific suffix '118' against the manufacturer's latest documentation to confirm availability status and exact packaging configuration. Ensure that the TSSOP-28 package dimensions align with the target PCB footprint. Confirm that the operating voltage range of 2.3 V to 5.5 V matches the system power supply specifications before finalizing procurement.
Selection Notes
Select this component when a 16-channel solution with I2C control is required. The 25 mA per channel sink capability suits standard indicator and low-power lighting applications. Consider the TSSOP-28 package size for space-constrained designs. Verify thermal management requirements given the 400 mW power dissipation limit under load conditions.
Part Context
This part belongs to the PCA9635 series of LED drivers. It is distinct from the PCA9685, which offers higher resolution PWM but lacks the boost topology found in the PCA9635. The PCA9635 is designed primarily for applications requiring simple on/off or dimming control without complex color mixing precision.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult official NXP resources for potential obsolescence alternatives if the current lifecycle status changes.
