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AL8806QMP-13 LED Driver IC Equivalent & Substitute Parts
Part Overview
The AL8806QMP-13 is a LED Driver IC manufactured by Diodes Incorporated, designed as a 1-output DC-DC regulator with step-down (buck) topology. This device features PWM and analog dimming capabilities with a 1.5A switch current rating and operates across a 6V to 30V supply range. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Active alternatives with compatible electrical and mechanical specifications are available from multiple manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AL8806QMP-13 |
| Manufacturer | Diodes Incorporated |
| Product Category | Power Management (PMIC) |
| Product Type | DC DC Regulator |
| Topology | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage Supply Range | 6V to 30V |
| Current Output / Channel | 1.5A (Switch) |
| Switching Frequency | 1MHz |
| Dimming Capability | Analog, PWM |
| Operating Temperature | -40°C to 125°C (TJ) |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the AL8806QMP-13 is determined by the following critical parameters:
Primary Substitution Criteria:
- Topology: Step-Down (Buck) configuration
- Number of Outputs: Single output
- Dimming: Analog and/or PWM capability
- Current Rating: 1.5A or higher switch current
- Supply Voltage Range: Minimum 6V input support
- Package Compatibility: 8-pin surface mount packages (8-MSOP, 8-TSSOP, 8-SOIC, or equivalent)
- Operating Temperature: -40°C to 125°C range
- Automotive Grade and AEC-Q100 qualification (where applicable)
Substitute parts are grouped into two categories based on current capacity and package form factor:
Group 1 - Direct Replacements (1.5A+ Current, 8-MSOP/TSSOP Package): AL8860QMP-13, LM3406MH/NOPB, and LM3414HVMRX/NOPB maintain the same package footprint and current handling capability, enabling direct PCB substitution.
Group 2 - Functional Alternatives (Lower Current or Different Package): IS31LT3352-V1GRLS2-TR (750mA, 8-SOP), LM3402HVMM/NOPB (500mA, 8-VSSOP), LM3402MRX/NOPB (500mA, 8-SO PowerPad), LM3405XMK/NOPB (1A, TSOT-23-6), IS31LT3360-SDLS4-TR (1.2A, SOT-89-5), LM3410XSDE/NOPB (2.8A, 6-WSON), and LM3414HVSDX/NOPB (1A, 8-WSON) provide functional equivalence with reduced current capacity or alternative package geometries, requiring circuit board redesign.
Parameter Comparison
| Parameter | AL8806QMP-13 | AL8860QMP-13 | IS31LT3352-V1GRLS2-TR | IS31LT3360-SDLS4-TR | LM3402HVMM/NOPB | LM3402MRX/NOPB | LM3405XMK/NOPB | LM3406MH/NOPB | LM3410XSDE/NOPB | LM3414HVMRX/NOPB | LM3414HVSDX/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Diodes Inc. | Diodes Inc. | Lumissil | Lumissil | TI | TI | TI | TI | TI | TI | TI |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Topology | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | Step-Down (Buck) | SEPIC, Step-Up (Boost) | Step-Down (Buck) | Step-Down (Buck) |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage Supply (Min) | 6V | 4.5V | 6V | 6V | 6V | 6V | 3V | 6V | 2.7V | 4.5V | 4.5V |
| Voltage Supply (Max) | 30V | 40V | 40V | 40V | 75V | 42V | 15V | 42V | 5.5V | 65V | 65V |
| Current Output / Channel | 1.5A | 1.5A | 750mA | 1.2A | 500mA | 500mA | 1A | 1.5A | 2.8A | 1A | 1A |
| Switching Frequency | 1MHz | 1MHz | 1MHz | 1MHz | 1MHz | 1MHz | 1.6MHz | 10kHz ~ 1MHz | 1.6MHz | 500kHz | 500kHz |
| Dimming | Analog, PWM | Analog, PWM | Analog, PWM | Analog, PWM | PWM | PWM | PWM | PWM | PWM | Analog, PWM | Analog, PWM |
| Operating Temperature | -40°C to 125°C (TJ) | -40°C to 105°C (TA) | -40°C to 85°C (TA) | -40°C to 125°C (TA) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) | -40°C to 125°C (TJ) |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm) | 8-TSSOP, 8-MSOP (0.118", 3.00mm) | 8-SOIC (0.154", 3.90mm) | SOT-89-5/6 | 8-TSSOP, 8-MSOP (0.118", 3.00mm) | 8-PowerSOIC (0.154", 3.90mm) | SOT-23-6 Thin, TSOT-23-6 | 14-PowerTSSOP (0.173", 4.40mm) | 6-WDFN Exposed Pad | 8-PowerSOIC (0.154", 3.90mm) | 8-WFDFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Grade | Automotive | Automotive | — | Automotive | — | — | — | Automotive | — | Automotive | Automotive |
| Qualification | AEC-Q100 | AEC-Q100 | — | AEC-Q100 | — | — | — | AEC-Q100 | — | AEC-Q100 | AEC-Q100 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
For Direct PCB Substitution (No Layout Changes Required):
AL8860QMP-13 is the primary recommended substitute. It maintains identical 8-MSOP package geometry and 1.5A current capacity. Both devices are AEC-Q100 qualified automotive-grade components. AL8860QMP-13 is active production status with expanded supply voltage range (4.5V to 40V) and higher maximum output voltage (36V). Operating temperature specification differs: AL8860QMP-13 is rated to 105°C ambient versus 125°C junction temperature for the original part.
LM3406MH/NOPB (Texas Instruments) provides 1.5A current capacity and automotive qualification with AEC-Q100 certification. Package is 14-PowerTSSOP, requiring PCB redesign. Frequency range is adjustable (10kHz to 1MHz) versus fixed 1MHz operation.
LM3414HVMRX/NOPB (Texas Instruments) offers 1A current capacity in 8-PowerSOIC package with automotive grade and AEC-Q100 qualification. Supply voltage range extends to 65V. Switching frequency is fixed at 500kHz. Both analog and PWM dimming are supported.
For Current-Limited Applications (Lower Current Capacity):
IS31LT3352-V1GRLS2-TR (Lumissil) provides 750mA capacity in 8-SOP package. Supports analog and PWM dimming across 6V to 40V supply range. Operating temperature limited to 85°C ambient. No automotive qualification.
LM3402HVMM/NOPB and LM3402MRX/NOPB (Texas Instruments) both deliver 500mA capacity with PWM dimming only. Supply voltage range extends to 75V (HVMM) and 42V (MRX). Both support -40°C to 125°C operating range. Package options are 8-VSSOP and 8-SO PowerPad respectively.
For Alternative Topologies:
LM3410XSDE/NOPB (Texas Instruments) implements SEPIC and step-up (boost) topology with 2.8A capacity, suitable for applications requiring voltage step-up from 2.7V to 5.5V input. Package is 6-WSON. Not automotive qualified.
Compliance Considerations:
All substitute parts maintain ROHS3 compliance and REACH unaffected status. Automotive applications requiring AEC-Q100 qualification should prioritize AL8860QMP-13, LM3406MH/NOPB, LM3414HVMRX/NOPB, or IS31LT3360-SDLS4-TR. Non-automotive applications have broader options across all listed substitutes.
Frequently Asked Questions (FAQ)
Q: Can AL8860QMP-13 replace AL8806QMP-13 without PCB modifications?
A: Yes. Both devices use identical 8-MSOP package geometry with 0.118" width and exposed pad. Pin-to-pin compatibility is maintained. Electrical parameter differences (supply voltage range, output voltage rating) must be verified against circuit requirements.
Q: What is the primary reason to substitute AL8806QMP-13?
A: AL8806QMP-13 is classified as obsolete. Active production alternatives are necessary for new designs and ongoing manufacturing. AL8860QMP-13 is the direct replacement with current availability.
Q: Are all substitute parts automotive qualified?
A: No. Only AL8860QMP-13, LM3406MH/NOPB, LM3414HVMRX/NOPB, LM3414HVSDX/NOPB, and IS31LT3360-SDLS4-TR carry AEC-Q100 qualification. Lumissil and some Texas Instruments variants lack automotive certification.
Q: Which substitutes support both analog and PWM dimming?
A: AL8860QMP-13, IS31LT3352-V1GRLS2-TR, IS31LT3360-SDLS4-TR, LM3414HVMRX/NOPB, and LM3414HVSDX/NOPB support both dimming modes. LM3402 and LM3405 series support PWM dimming only.
Q: What package options are available for 1.5A current capacity?
A: AL8860QMP-13 (8-MSOP), LM3406MH/NOPB (14-PowerTSSOP), and IS31LT3360-SDLS4-TR (SOT-89-5) all deliver 1.5A or higher. Package selection depends on PCB layout constraints and thermal management requirements.
Q: Can lower-current devices (500mA, 750mA, 1A) be used in applications designed for 1.5A?
A: Only if circuit load current does not exceed the substitute device rating. LM3402 (500mA), IS31LT3352 (750mA), LM3405 (1A), and LM3414 (1A) are suitable for proportionally reduced load applications. Exceeding rated current causes thermal shutdown and circuit failure.
Q: What is the temperature rating difference between TJ and TA specifications?
A: TJ (junction temperature) is measured at the silicon die. TA (ambient temperature) is measured at the device package exterior. TJ ratings typically allow higher operating range. AL8806QMP-13 specifies TJ (-40°C to 125°C), while AL8860QMP-13 specifies TA (-40°C to 105°C). Thermal design must account for this difference in high-temperature environments.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for EU and global markets.
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