AP3064FNTR-G1 Equivalent & Substitute Parts

Part Overview

The AP3064FNTR-G1 is a LED Driver IC manufactured by Diodes Incorporated, designed as a 4-output DC-DC controller with step-up (boost) topology for backlight applications. This device operates with PWM dimming control and delivers 220mA per channel output current. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

AP3064FNTR-G1

Diodes IncorporatedIn Stock: 60155AP3064FNTR-G1 Datasheet

Current PartRFQ

LP8860AQVFPRQ1

Texas InstrumentsIn Stock: 6121LP8860AQVFPRQ1 Datasheet

MFR RecommendedRFQ

LP8860JQVFPRQ1

Texas InstrumentsIn Stock: 3478LP8860JQVFPRQ1 Datasheet

MFR RecommendedRFQ

MP3394SGF-Z

Monolithic Power Systems Inc.In Stock: 1478MP3394SGF-Z Datasheet

MFR RecommendedRFQ

MP3394SGY

Monolithic Power SystemsIn Stock: 1007MP3394SGY Datasheet

MFR RecommendedRFQ

SC5012QMLTRT

Semtech CorporationIn Stock: 16090SC5012QMLTRT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP3064FNTR-G1 is determined by the following critical parameters:

• Topology: Step-up (boost) DC-DC controller architecture
• Output Configuration: 4-channel output structure
• Dimming Method: PWM control capability
• Supply Voltage Compatibility: Input voltage range overlap with 4.5V minimum requirement
• Output Current Capability: Minimum 150mA per channel to support backlight applications
• Package Form Factor: Surface-mount packages suitable for board integration
• Application Domain: LED driver controller for backlight systems

The identified substitute parts maintain functional equivalence through matching topology, output channel count, PWM dimming capability, and backlight application focus. Variations in package type, frequency range, and maximum output current are acceptable within the constraints of the target application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status)

The LP8860AQVFPRQ1 and LP8860JQVFPRQ1 from Texas Instruments are the preferred substitutes. Both devices maintain active product status with AEC-Q100 automotive qualification, extended operating temperature range (-40°C to 125°C), and ROHS3 compliance. The LP8860 series supports higher supply voltage (48V maximum) and extended frequency range (100kHz to 2.2MHz) compared to the AP3064FNTR-G1. Output current per channel is reduced to 150mA, which is acceptable for most backlight applications. The primary trade-off is increased package size (32-HLQFP 7x7 versus 16-QFN 4x4).

Secondary Substitutes (Active Status)

The MP3394SGF-Z and MP3394SGY from Monolithic Power Systems are active alternatives with fixed switching frequency of 670kHz. These devices deliver 180mA per channel, closer to the original 220mA specification. The MP3394SGF-Z uses a 16-TSSOP-EP package (comparable footprint to the original), while MP3394SGY employs a 20-SOIC package. Supply voltage range is limited to 5V to 28V, which may restrict application flexibility compared to the AP3064FNTR-G1.

Tertiary Substitute (Not For New Designs)

The SC5012QMLTRT from Semtech Corporation is classified as "Not For New Designs" and should be avoided for new development. This device supports both analog and PWM dimming, operates at 150mA per channel, and uses a 24-QFN (4x4) package. While functionally capable, its design status precludes recommendation for ongoing production.

Frequently Asked Questions (FAQ)

Q: Can the LP8860AQVFPRQ1 directly replace the AP3064FNTR-G1 without circuit modifications?

A: The LP8860AQVFPRQ1 maintains functional equivalence as a 4-output boost LED driver controller with PWM dimming. However, package size differs (32-HLQFP 7x7 versus 16-QFN 4x4), requiring PCB layout redesign. Output current per channel is 150mA versus 220mA on the original part. Circuit topology compatibility must be verified against application requirements and reference designs.

Q: What is the impact of reduced output current (150mA to 180mA) on backlight performance?

A: The substitute parts deliver 68% to 82% of the original 220mA per-channel current. For backlight applications, this reduction may require adjustment of LED string configuration or brightness calibration. Total system current delivery across four channels remains substantial (600mA to 720mA). Application-specific testing is necessary to confirm performance adequacy.

Q: Why do the LP8860 devices have a larger package than the original AP3064FNTR-G1?

A: The LP8860 series uses 32-HLQFP (7x7mm) packaging versus the AP3064FNTR-G1's 16-QFN (4x4mm). Larger package size accommodates additional integrated functions, improved thermal characteristics, and automotive-grade qualification (AEC-Q100). This represents a trade-off between board space and enhanced reliability and temperature performance.

Q: Are all substitute parts RoHS compliant?

A: Yes. The LP8860AQVFPRQ1, LP8860JQVFPRQ1, MP3394SGF-Z, and MP3394SGY are ROHS3 compliant. The SC5012QMLTRT is RoHS compliant. All identified substitutes meet environmental compliance requirements equivalent to or exceeding the original AP3064FNTR-G1.

Q: Which substitute is recommended for automotive applications?

A: The LP8860AQVFPRQ1 and LP8860JQVFPRQ1 carry AEC-Q100 automotive qualification, making them suitable for automotive-grade backlight systems. The SC5012QMLTRT also carries automotive designation but is classified as "Not For New Designs." The MP3394 series does not specify automotive qualification.

Q: What is the difference between LP8860AQVFPRQ1 and LP8860JQVFPRQ1?

A: Both devices are functionally identical LP8860 controllers with identical electrical specifications. The primary difference is packaging: LP8860AQVFPRQ1 is supplied in Cut Tape (CT) and Digi-Reel format, while LP8860JQVFPRQ1 is supplied in Tape & Reel (TR) format. Selection depends on procurement and assembly requirements.

Q: Can the MP3394SGF-Z be used in place of the MP3394SGY?

A: Both MP3394 variants share identical electrical specifications and 180mA per-channel output current. The primary difference is package type: MP3394SGF-Z uses 16-TSSOP-EP (0.173" width), while MP3394SGY uses 20-SOIC (0.295" width). Selection depends on available PCB footprint and assembly capabilities. The TSSOP variant offers a more compact form factor.