CAT3606HV4-T2 Equivalent & Substitute Parts

Part Overview

The CAT3606HV4-T2 is a LED Driver IC manufactured by onsemi, designed for white backlight applications. This 6-output switched capacitor (charge pump) device operates across a 3V to 5.5V supply range with 30mA per-channel output capability. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

CAT3606HV4-T2

onsemiIn Stock: 1082CAT3606HV4-T2 Datasheet

Current PartRFQ

ADM8845ACPZ-REEL7

Analog Devices Inc.In Stock: 6068ADM8845ACPZ-REEL7 Datasheet

SimilarRFQ

MAX8647ETE+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2136MAX8647ETE+T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CAT3606HV4-T2 is determined by the following critical parameters:

• Topology: Switched Capacitor (Charge Pump) architecture
• Number of Outputs: 6 channels
• Supply Voltage Range: Minimum 3V to maximum 5.5V overlap
• Current per Channel: 30mA capability
• Operating Temperature Range: -40°C to 85°C
• Mounting Type: Surface Mount
• Package Form Factor: 16-pin QFN variants

The identified substitute parts maintain functional equivalence through matching topology, output count, and thermal operating range. Variations in supply voltage minimums, output current ratings, and package dimensions are noted as secondary considerations based on application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

ADM8845ACPZ-REEL7 is an active product with full feature parity to the CAT3606HV4-T2 in topology, output count, and current rating. This part maintains identical supply voltage range and operating temperature specifications. The package footprint differs (3x3mm versus 4x4mm), requiring PCB layout verification. MSL rating of 3 requires controlled storage conditions. ROHS3 compliance supports environmental regulatory requirements.

MAX8647ETE+T is an active product offering compatible topology and output configuration. Supply voltage range and operating temperature align with the original part. Output current per channel is rated at 24mA, which is 4mA lower than the CAT3606HV4-T2 specification. Package footprint is 3x3mm. MSL rating of 1 matches the original part's moisture sensitivity profile. ROHS3 compliance is provided.

Both substitute parts carry active product status, ensuring long-term availability and manufacturing support compared to the obsolete CAT3606HV4-T2.

Frequently Asked Questions (FAQ)

Q: Can the ADM8845ACPZ-REEL7 directly replace the CAT3606HV4-T2 on existing PCBs?

A: The ADM8845ACPZ-REEL7 maintains functional equivalence in topology, output count, and electrical specifications. However, the package footprint differs (16-LFCSP-VQ 3x3mm versus 16-TQFN 4x4mm), requiring PCB layout modification and re-qualification.

Q: What is the impact of the MAX8647ETE+T's 24mA per-channel rating versus the 30mA specification of the CAT3606HV4-T2?

A: The 24mA rating represents a 20% reduction in maximum output current per channel. Applications requiring the full 30mA per-channel capability must verify that the MAX8647ETE+T meets load current requirements before selection.

Q: How do MSL ratings affect component handling and storage?

A: The CAT3606HV4-T2 and MAX8647ETE+T carry MSL 1 (Unlimited), allowing indefinite storage without moisture absorption concerns. The ADM8845ACPZ-REEL7 carries MSL 3 (168 Hours), requiring controlled storage conditions and bake-out procedures if moisture absorption limits are exceeded.

Q: Are there supply voltage considerations when substituting these parts?

A: All three parts support the 5.5V maximum supply voltage. The ADM8845ACPZ-REEL7 and MAX8647ETE+T support lower minimum supply voltages (2.6V and 2.7V respectively) compared to the CAT3606HV4-T2 (3V minimum). Applications operating at or below 3V supply voltage can only use the substitute parts.

Q: What compliance certifications are relevant for component selection?

A: Both substitute parts carry ROHS3 compliance and REACH Unaffected status, matching environmental regulatory requirements. The CAT3606HV4-T2 compliance status is not specified in available documentation.