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Product Detailed Parameters
- Description：IC LED DRVR LIN I2C 25MA 24TQFN
- Series：-
- Mfr：onsemi
- 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：-
- Current - Output / Channel：25mA
- Frequency：400kHz
- Dimming：I2C
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-TQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The CAT9532HV6I-GT2 is an LED lighting driver IC from onsemi, featuring a TQFN-24 package. It integrates 16 open-drain outputs with a low-level output current of 25 mA. The device supports I2C/SMBus communication at a maximum frequency of 400 kHz and includes PWM dimming capabilities for brightness control. Operating within a supply voltage range of 2.3 V to 5.5 V, it utilizes Boost and Buck topologies with adjustable output voltage. The component operates between -40°C and +85°C, consuming a maximum power dissipation of 1 W and a maximum supply current of 550 uA.
Feature Summary
- Integrates 16-channel open-drain outputs for direct LED driving
- Supports I2C and SMBus interfaces for digital control
- Enables precise LED brightness adjustment via PWM dimming
- Incorporates integrated Boost and Buck converter topologies
Applications
- LED lighting systems requiring digital control
- General-purpose I/O expansion in embedded designs
- Brightness control circuits for display backlights
Procurement Notes
Verify the specific suffix 'HV6I' against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure the TQFN-24 package dimensions align with the target PCB footprint. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the RoHS status with current regulatory standards before procurement.
Selection Notes
Select this component when a design requires both I/O expansion and integrated LED dimming functionality. The choice is driven by the need for a single-chip solution combining 16-bit expansion with PWM control. Consider the 25 mA output capability and the 2.3 V to 5.5 V input range for system compatibility. The TQFN-24 package offers a compact form factor suitable for space-constrained applications.
Part Context
This part belongs to the CAT9532 series of LED lighting drivers. It combines I/O expander functions with dedicated LED drive capabilities. The series is designed for applications needing efficient light control through digital interfaces. The HV6I variant specifies the particular package and temperature grade within the broader product family.
Replacement Considerations
Consult the official datasheet for confirmed substitute part numbers. Verify functional equivalence regarding channel count, interface type, and output current specifications.
