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MP24895GQ-Z LED Driver IC Equivalent & Substitute Parts
Part Overview
The MP24895GQ-Z is an active LED driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This single-output DC-DC regulator features step-down (buck) topology with internal switching capability, delivering 700mA output current with analog and PWM dimming control. The device operates across a 6V to 36V supply range and is rated for automotive-grade applications with an operating temperature range of -40°C to 125°C (TJ). Packaged in a 6-QFN (3x3) form factor with exposed pad, the MP24895GQ-Z is ROHS3 compliant and carries MSL 1 (unlimited moisture sensitivity). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter constraints.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems Inc. |
| Part Number | MP24895GQ-Z |
| Category | Power Management (PMIC) |
| Type | DC DC Regulator |
| Topology | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage Supply (Min) | 6V |
| Voltage Supply (Max) | 36V |
| Current Output / Channel | 700mA |
| Dimming | Analog, PWM |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | Automotive |
| Package / Case | 6-VDFN Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the MP24895GQ-Z is determined by the following critical parameters:
Primary Substitution Criteria:
- Topology: Step-Down (Buck) with internal switching
- Number of Outputs: Single output configuration
- Dimming Capability: Analog and/or PWM dimming support
- Supply Voltage Range: Minimum 6V input capability; maximum 36V or higher
- Output Current: 700mA or greater per channel
- Operating Temperature: -40°C minimum and 125°C maximum or higher
- Grade: Automotive qualification preferred for direct replacement
- RoHS Compliance: ROHS3 compliant
- Mounting: Surface mount technology
Substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications) and manufacturer-recommended alternatives (functionally compatible with allowable parameter variations). Parametric equivalents maintain the same package footprint and pin configuration. Manufacturer-recommended alternatives may differ in package type, current rating, or supply voltage range while maintaining functional compatibility for LED driver applications.
Parameter Comparison
| Parameter | MP24895GQ-Z | MP24895GQ-P | A6217KLJTR-1-T | AL8860WT-7 | AL8861Y-13 | AP8802HSP-13 | IS31LT3352-V1GRLS2-TR | LM3402MRX/NOPB | LM3404HVMRX/NOPB | LM3405AXMY/NOPB | LM3405XMK/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | MPS | MPS | Allegro | Diodes | Diodes | Diodes | Lumissil | TI | TI | TI | TI |
| Topology | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck | Buck |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage Supply Min (V) | 6 | 6 | 6 | 4.5 | 4.5 | 8 | 6 | 6 | 6 | 3 | 3 |
| Voltage Supply Max (V) | 36 | 36 | 48 | 40 | 40 | 60 | 40 | 42 | 75 | 22 | 15 |
| Current Output (mA) | 700 | 700 | 1500 | 1000 | 1500 | 1000 | 750 | 500 | 1000 | 1000 | 1000 |
| Dimming | Analog, PWM | Analog, PWM | PWM | Analog, PWM | Analog, PWM | Analog, PWM | Analog, PWM | PWM | PWM | PWM | PWM |
| Operating Temp Min (°C) | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 | -40 |
| Operating Temp Max (°C) | 125 | 125 | 125 | 105 | 85 | 125 | 85 | 125 | 125 | 125 | 125 |
| Grade | Automotive | Automotive | Automotive | Commercial | Commercial | Commercial | Commercial | Commercial | Automotive | Commercial | Commercial |
| Package | 6-VDFN | 6-VDFN | 8-SOIC-EP | TSOT-25 | SOT-89-5 | 8-SO-EP | 8-SOP | 8-SO PowerPad | 8-SO PowerPad | 8-HVSSOP | TSOT-23-6 |
| RoHS Status | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 | ROHS3 |
| MSL | 1 | 1 | 3 | 1 | 3 | 1 | 3 | 3 | 3 | 1 | 1 |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Parametric Equivalent (Direct Replacement):
MP24895GQ-P is a parametric equivalent to MP24895GQ-Z. Both parts share identical electrical specifications (6V–36V supply, 700mA output, analog and PWM dimming), automotive grade qualification, identical package (6-VDFN exposed pad), ROHS3 compliance, and MSL 1 rating. The only distinction is packaging format (Tape & Reel for both). This part is suitable for direct substitution without design modification.
Manufacturer-Recommended Alternatives:
The following parts are manufacturer-recommended substitutes with functional compatibility for LED driver applications:
A6217KLJTR-1-T (Allegro MicroSystems) provides higher output current (1.5A) and extended supply voltage range (6V–48V) in an 8-SOIC-EP package. Automotive grade and ROHS3 compliant. MSL 3 rating requires controlled storage conditions. Package change necessitates PCB layout modification.
AL8860WT-7 (Diodes Incorporated) operates at lower minimum supply voltage (4.5V) with 1A output current and 1MHz switching frequency in TSOT-25 package. Supports analog and PWM dimming. Commercial grade; maximum operating temperature 105°C. MSL 1 rating. Compact package suitable for space-constrained applications.
AL8861Y-13 (Diodes Incorporated) delivers 1.5A output current with 1MHz switching frequency in SOT-89-5 package. Supports analog and PWM dimming across 4.5V–40V supply range. Commercial grade; maximum operating temperature 85°C. MSL 3 rating. Larger package footprint than MP24895GQ-Z.
AP8802HSP-13 (Diodes Incorporated) provides 1A output current with 700kHz switching frequency in 8-SO-EP package. Supports analog and PWM dimming across 8V–60V supply range. Operating temperature range -40°C to 125°C. MSL 1 rating. Requires minimum 8V input.
IS31LT3352-V1GRLS2-TR (Lumissil Microsystems) delivers 750mA output current with 1MHz switching frequency in 8-SOP package. Supports analog and PWM dimming across 6V–40V supply range. Commercial grade; maximum operating temperature 85°C. MSL 3 rating. Closest current rating to MP24895GQ-Z.
LM3402MRX/NOPB (Texas Instruments) provides 500mA output current with 1MHz switching frequency in 8-SO PowerPad package. PWM dimming only. Supply range 6V–42V. Operating temperature -40°C to 125°C. MSL 3 rating. Lower current output than MP24895GQ-Z.
LM3404HVMRX/NOPB (Texas Instruments) delivers 1A output current with 1MHz switching frequency in 8-SO PowerPad package. PWM dimming only. Extended supply range 6V–75V. Automotive grade. Operating temperature -40°C to 125°C. MSL 3 rating. Suitable for high-voltage applications.
LM3405AXMY/NOPB (Texas Instruments) provides 1A output current with 1.6MHz switching frequency in 8-HVSSOP package. PWM dimming only. Lower supply range 3V–22V. Operating temperature -40°C to 125°C. MSL 1 rating. Suitable for low-voltage applications.
LM3405XMK/NOPB (Texas Instruments) delivers 1A output current with 1.6MHz switching frequency in TSOT-23-6 package. PWM dimming only. Supply range 3V–15V. Operating temperature -40°C to 125°C. MSL 1 rating. Compact package for low-voltage designs.
Frequently Asked Questions (FAQ)
Q: Can MP24895GQ-P be used as a direct replacement for MP24895GQ-Z?
A: Yes. MP24895GQ-P is a parametric equivalent with identical electrical specifications, automotive grade qualification, package type (6-VDFN exposed pad), ROHS3 compliance, and MSL 1 rating. No design changes are required.
Q: What is the primary difference between the MP24895GQ-Z and the manufacturer-recommended alternatives?
A: The main differences are output current capacity, supply voltage range, package footprint, and dimming control options. The MP24895GQ-Z delivers 700mA in a compact 6-QFN package with both analog and PWM dimming. Alternatives offer higher current ratings (1A–1.5A) or extended voltage ranges but may require different package footprints and PCB layouts.
Q: Which substitute parts maintain the same package footprint as the MP24895GQ-Z?
A: Only MP24895GQ-P maintains the identical 6-VDFN exposed pad package. All other manufacturer-recommended alternatives use different packages (8-SOIC-EP, TSOT-25, SOT-89-5, 8-SO-EP, 8-SOP, 8-HVSSOP, TSOT-23-6), requiring PCB redesign.
Q: Are all substitute parts automotive-grade qualified?
A: No. Only MP24895GQ-P, A6217KLJTR-1-T, and LM3404HVMRX/NOPB carry automotive grade qualification. The remaining parts are commercial grade. Automotive applications requiring AEC-Q100 qualification should prioritize these three options.
Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?
A: MSL 1 (unlimited) parts have no moisture sensitivity restrictions and can be stored indefinitely at room temperature. MSL 3 (168 hours) parts require controlled storage conditions and must be used within 168 hours of package opening if exposed to moisture. For high-volume production or extended storage, MSL 1 parts are preferred.
Q: Can I use a substitute part with lower maximum operating temperature?
A: Substitution is only valid if the substitute part's maximum operating temperature meets or exceeds your application requirements. The MP24895GQ-Z operates to 125°C (TJ). Parts with lower maximum ratings (AL8860WT-7 at 105°C, AL8861Y-13 and IS31LT3352-V1GRLS2-TR at 85°C) are unsuitable for applications requiring full 125°C operation.
Q: Which substitute parts support both analog and PWM dimming like the MP24895GQ-Z?
A: MP24895GQ-P, AL8860WT-7, AL8861Y-13, AP8802HSP-13, and IS31LT3352-V1GRLS2-TR support both analog and PWM dimming. Texas Instruments parts (LM3402MRX/NOPB, LM3404HVMRX/NOPB, LM3405AXMY/NOPB, LM3405XMK/NOPB) support PWM dimming only.
Q: What supply voltage range considerations apply when selecting a substitute?
A: The MP24895GQ-Z operates from 6V to 36V. Substitute parts with lower minimum voltage (4.5V or 3V) can operate in lower-voltage applications but are not required for 6V–36V designs. Parts with higher maximum voltage (48V, 60V, 75V) provide extended range capability. Ensure the substitute's voltage range encompasses your application's requirements.
Q: Is package size a critical factor in substitution?
A: Yes, if PCB layout is fixed. The MP24895GQ-Z uses a compact 6-QFN (3x3) package. Larger packages (8-SOIC, SOT-89, 8-SO, 8-SOP, 8-HVSSOP, TSOT-23) require different PCB footprints and may not fit existing designs. Only MP24895GQ-P maintains the same footprint.
Q: Can I substitute a part with higher output current rating?
A: Yes, if your application does not require the full 700mA. Parts with 1A or 1.5A ratings can deliver 700mA without stress. However, higher-rated parts may have different thermal characteristics and PCB layout requirements. Verify that the substitute's package and thermal performance are compatible with your design.
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