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Product Detailed Parameters
- Description：IC LED DRVR WHITE BCKLGT 16-TQFN
- Series：-
- Mfr：onsemi
- Package：Cut Tape (CT)
- Type：-
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：-
- Number of Outputs：4
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：30mA
- Frequency：800kHz ~ 1.3MHz
- Dimming：-
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-WQFN Exposed Pad
- Supplier Device Package：16-TQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The CAT3604HV4-T2 is a four-channel regulated charge pump white LED driver manufactured by onsemi. It operates within a frequency range of 800kHz to 1.3MHz and provides a current output of 30mA per channel. The device is housed in a 16-pin WQFN surface-mount package. It supports an operating temperature range from -40°C to 85°C and complies with RoHS standards.
Feature Summary
- Integrates a regulated charge pump architecture for efficient white LED driving
- Provides independent regulation across four distinct output channels
- Supports high-frequency switching operation up to 1.3MHz
Applications
- White LED backlighting systems
- Portable electronic display illumination
- General-purpose LED lighting drivers
Procurement Notes
Verify the specific suffix 'T2' against official datasheets to confirm tape-and-reel packaging requirements. Ensure compatibility with the 16-pin WQFN footprint during PCB layout. Confirm that the 800kHz-1.3MHz switching frequency aligns with system EMI constraints. Validate thermal performance within the specified -40°C to 85°C operational range for the target environment.
Selection Notes
Select this component when a compact, multi-channel solution for white LEDs is required. The integrated charge pump eliminates the need for external inductors, reducing board space. Consider the 30mA per channel limit for load matching. The wide input voltage capability inherent to charge pumps suits battery-powered applications. Verify pinout compatibility if replacing legacy drivers.
Part Context
This part belongs to the CAT3604 series of LED drivers. It is designed specifically for regulating multiple white LED strings in portable devices. The series emphasizes efficiency and minimal external component count. It serves as a specialized interface between power sources and LED arrays in consumer electronics.
Replacement Considerations
Check for direct substitutes within the CAT3604 family. Verify pin-to-pin compatibility with existing designs. Ensure equivalent current ratings and switching frequencies. Confirm package dimensions match the current footprint.
