CAT3604VHV4-GT2 Equivalent & Substitute Parts

Part Overview

The CAT3604VHV4-GT2 is a 4-output LED driver IC with integrated DC-DC regulator utilizing switched capacitor (charge pump) topology and PWM dimming capability. Manufactured by onsemi, this component is designed for backlight applications requiring 25mA per channel output current with supply voltage range of 2.5V to 5.5V.

The CAT3604VHV4-GT2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

CAT3604VHV4-GT2

onsemiIn Stock: 9371CAT3604VHV4-GT2 Datasheet

Current PartRFQ

MAX8822ETE+

Analog Devices Inc./Maxim IntegratedIn Stock: 822MAX8822ETE+ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CAT3604VHV4-GT2 are identified based on the following critical parameters that determine functional compatibility:

• Topology: Switched Capacitor (Charge Pump) DC-DC regulator architecture
• Number of Outputs: 4-channel configuration
• Output Current: 25mA per channel (±1mA tolerance acceptable)
• Supply Voltage Range: 2.5V to 5.5V input compatibility
• Switching Frequency: 1MHz operation
• Dimming Control: PWM dimming capability
• Package Type: 16-pin TQFN surface mount with exposed pad
• Operating Temperature Range: -40°C to 85°C
• Application: LED backlight driver

The MAX8822ETE+ from Analog Devices Inc./Maxim Integrated qualifies as a substitute part based on matching topology, output configuration, frequency, dimming method, temperature range, and package category. Minor parameter variations (supply voltage minimum of 2.7V vs. 2.5V, output current of 24mA vs. 25mA, and package dimensions of 3x3mm vs. 4x4mm) remain within acceptable substitution criteria for LED driver applications.

Parameter Comparison

Engineering Selection Recommendations

The MAX8822ETE+ is suitable as a substitute for the obsolete CAT3604VHV4-GT2 based on the following engineering criteria:

Product Status: The MAX8822ETE+ maintains active manufacturing status, ensuring long-term availability and supply chain continuity compared to the obsolete CAT3604VHV4-GT2.

Regulatory Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory standards. Both carry MSL Level 1 (Unlimited) moisture sensitivity classification.

Functional Equivalence: Matching topology (switched capacitor charge pump), output configuration (4 channels), switching frequency (1MHz), and PWM dimming capability ensure functional compatibility in backlight driver applications.

Parameter Deviations: The MAX8822ETE+ operates with a minimum supply voltage of 2.7V (versus 2.5V for the CAT3604VHV4-GT2) and provides 24mA per channel output current (versus 25mA). These variations are within acceptable tolerances for LED backlight applications. The 3x3mm package footprint differs from the 4x4mm original, requiring PCB layout modification.

Design Considerations: Applications operating below 2.7V supply voltage or requiring exactly 25mA per channel output current must evaluate alternative substitutes or confirm MAX8822ETE+ suitability through application-specific testing.

Frequently Asked Questions (FAQ)

Q: What makes the MAX8822ETE+ a valid substitute for the CAT3604VHV4-GT2?

A: Both components share identical core specifications: 4-output switched capacitor DC-DC regulator topology, 1MHz switching frequency, PWM dimming control, 16-pin TQFN surface mount package, and -40°C to 85°C operating temperature range. Regulatory compliance (ROHS3, REACH unaffected) and moisture sensitivity levels are equivalent.

Q: Are there any critical differences between these parts?

A: Yes. The MAX8822ETE+ requires a minimum supply voltage of 2.7V compared to 2.5V for the CAT3604VHV4-GT2. Output current per channel is 24mA versus 25mA. The package footprint differs: 3x3mm versus 4x4mm. Applications operating at supply voltages below 2.7V or requiring the full 25mA per channel specification must evaluate these differences.

Q: Can I directly replace the CAT3604VHV4-GT2 with the MAX8822ETE+ on my PCB?

A: Direct replacement requires PCB layout modification due to different package dimensions (3x3mm versus 4x4mm). Pin configuration and functionality are compatible. Verify that your application's supply voltage remains at or above 2.7V and that 24mA per channel output current meets your LED current requirements.

Q: What is the product status difference between these parts?

A: The CAT3604VHV4-GT2 is classified as obsolete, indicating onsemi has discontinued manufacturing. The MAX8822ETE+ maintains active product status from Analog Devices Inc./Maxim Integrated, ensuring continued availability and manufacturing support.

Q: Are both parts RoHS compliant?

A: Yes. Both the CAT3604VHV4-GT2 and MAX8822ETE+ are ROHS3 compliant and REACH unaffected, meeting equivalent environmental standards for electronic components.

Q: What applications are these LED driver ICs designed for?

A: Both components are specified for backlight applications requiring multi-channel LED current regulation with PWM dimming control. Typical applications include LCD display backlighting and LED indicator arrays.