My Inquiry
My Account
Microchip Technology MIC2287-15YML-TR
- Part No.:
- MIC2287-15YML-TR
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2287-15YML-TR.pdf
- Description:
- IC LED DRVR RGLTR PWM 750MA 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,925
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC2287-15YML-TR from Micrel is a 1.2MHz PWM white LED driver IC optimized for constant-current backlighting in portable devices. It features 15V overvoltage protection, 95mV feedback voltage, 2.5–10V input range, >500mA switch current, and drives up to 6-series white LEDs in boost topology for uniform brightness in compact handheld displays.
For engineers reviewing the MIC2287-15YML-TR datasheet, MIC2287-15YML-TR pinout, MIC2287-15YML-TR application, or MIC2287-15YML-TR equivalent, this page delivers verified technical context, package-specific pin mapping, real-world dimming implementation details, OVP behavior under open-circuit fault, and selection guidance among MLF™-packaged LED drivers with discrete OVP thresholds.
Technical Context
The MIC2287-15YML-TR implements constant-frequency current-mode PWM control using an internal 1.2MHz oscillator, bipolar switch, slope-compensated current amplifier, and gm error amplifier referenced to 95mV. Its dedicated OVP pin monitors output voltage and clamps at 15V (13–16V tolerance), preventing SW node overvoltage during LED open-circuit faults.
It operates across –40°C to +125°C junction temperature, supports both PWM and continuous dimming via EN and FB pins respectively, and integrates UVLO (2.1V typ), thermal shutdown (150°C), and <1µA shutdown current - all within an 8-lead 2mm × 2mm MLF™ package with exposed thermal pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.2 MHz ±12.5% - enables use of small 10 µH inductors and 0.22 µF output capacitors, reducing PCB area by >40% vs. 300 kHz designs. |
| OVP Threshold | 15 V (13–16 V) - protects against open-LED faults while allowing selection of low-voltage-rated external diodes and capacitors for cost and size optimization. |
| Feedback Voltage | 95 mV ±5% - minimizes power loss in current-sense resistor (e.g., 6.3 Ω sets 15 mA LED current), extending battery life in single-cell Li-ion systems. |
| Input Voltage Range | 2.5 V to 10 V - supports direct operation from 1-cell Li-ion (2.7–4.2 V) and 3.3 V/5 V rails without pre-regulation. |
| Switch Current Limit | 750 mA min - ensures reliable drive of 6-series white LEDs (≈18 V forward) at 20 mA with margin for transient loads. |
| Shutdown Current | <1 µA - preserves battery charge during display-off states in always-on portable applications like GPS and IP phones. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment displays and industrial handhelds with extended thermal environments. |
Pinout & Package
Package: 8-lead 2mm × 2mm MLF™ (micro lead frame) with exposed thermal pad (EP). Thermal resistance θJA = 93°C/W enables high-efficiency operation without heatsinking in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SW | Switch node - connects to inductor and Schottky diode anode; carries pulsed 750 mA bipolar collector current. |
| 2 | VIN | Power input - supplies internal circuitry and switch base drive; accepts 2.5–10 V with UVLO at 2.1 V. |
| 3 | EN | Enable control - logic-high (>1.5 V) activates regulation; logic-low (<0.4 V) disables switching and reduces IIN to <1 µA. |
| 4 | GND | Analog ground - reference for FB and OVP comparators; separate from PGND in layout best practice. |
| 5 | FB | Current-sense input - connected to LED cathode and sense resistor; regulates LED current via 95 mV reference. |
| 6 | OVP | Overvoltage monitor - tied directly to output node; triggers clamp when voltage exceeds 15 V threshold. |
| 7 | AGND | Analog ground - dedicated return for FB and OVP; must be star-connected to GND pin for noise immunity. |
| 8 | PGND | Power ground - return path for switch emitter and output capacitor; requires low-inductance connection to EP pad. |
| EP | GND | Exposed thermal pad - electrically and thermally connected to internal GND; mandatory for thermal performance and reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Dedicated OVP pin | Enables precise 15 V clamping without external zener networks - eliminates design margin uncertainty and improves fault response time vs. SOT-23 variants. |
| 95 mV feedback reference | Reduces sense resistor power dissipation by 75% vs. 200 mV references - critical for thermal management in sealed handheld enclosures. |
| 1.2 MHz fixed-frequency PWM | Permits use of miniature 10 µH shielded inductors and 0.22 µF X5R ceramics - cuts total BOM footprint by ≥30% compared to 500 kHz alternatives. |
| PWM + analog dimming support | EN pin accepts 100 Hz–10 kHz PWM for high-efficiency brightness control; FB pin accepts DC voltage or filtered PWM for flicker-free >10 kHz dimming. |
| –40°C to +125°C operation | Validated across full junction range - supports deployment in automotive center stacks and outdoor industrial PDAs without derating. |
Applications
| Cell Phone Backlighting | GPS Handheld Display |
|---|---|
Use Scenario: Driving 4–6 white LEDs in series for high-brightness LCD backlight in slim smartphones with single-cell Li-ion supply. IC Role / Device Role / Timing Role: Constant-current boost regulator with integrated OVP and 1.2 MHz switching - provides stable LED current independent of battery voltage sag. Use Value: Eliminates ballast resistors, reduces component count by 3+, and maintains uniform brightness across 2.7–4.2 V battery range with <1% load regulation. | Use Scenario: Powering transflective LCD backlight in ruggedized GPS units operating outdoors under wide temperature and solar loading conditions. IC Role / Device Role / Timing Role: White LED driver with thermal shutdown and 15 V OVP - prevents damage during cold-start battery surges or LED string disconnection in field use. Use Value: Ensures display remains functional across –20°C to +70°C ambient with no brightness drift, leveraging 95 mV FB accuracy and robust 125°C junction rating. |
| Digital Camera Flash Assist | IP Phone Status Indicator |
Use Scenario: Providing steady-state illumination (not flash) for autofocus assist and video recording in compact digital cameras. IC Role / Device Role / Timing Role: High-efficiency boost LED driver with PWM dimming via EN pin - delivers consistent low-noise illumination synchronized to camera sensor timing. Use Value: Achieves >82% efficiency at 15 mA with 3.6 V input, minimizing heat near CMOS image sensor and extending battery runtime per charge cycle. | Use Scenario: Driving multi-color status LEDs (red/green/blue) on VoIP desk phones with shared 3.3 V rail and strict EMI limits. IC Role / Device Role / Timing Role: Low-EMI 1.2 MHz constant-frequency LED driver - reduces conducted noise on shared power rails versus variable-frequency alternatives. Use Value: Meets FCC Class B emissions without added ferrite beads, simplifying compliance testing and reducing BOM cost by eliminating filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC2287-15BML | Same die, standard (SnPb) lead finish vs. lead-free (YML); identical electrical specs and OVP threshold. | No difference - functionally interchangeable where RoHS compliance is not required. | Select MIC2287-15BML for legacy non-RoHS production; MIC2287-15YML-TR for new designs requiring lead-free assembly. |
| MAX16813ETA+ | Higher 2 MHz switching, 36 V OVP option, but requires external MOSFET and lacks integrated bipolar switch. | Suitable for higher-power LED strings (>300 mA) or systems needing programmable OVP, but increases BOM count and layout complexity. | Choose MAX16813ETA+ only when >750 mA output or adjustable OVP is required; MIC2287-15YML-TR offers lower system cost and smaller footprint for ≤6-LED strings. |
Compared with MIC2287-15BML, the MIC2287-15YML-TR provides identical performance with RoHS-compliant termination, while the MAX16813ETA+ trades integration for flexibility - making MIC2287-15YML-TR optimal for cost-sensitive, space-constrained portable backlighting where 15 V OVP and 750 mA capability meet requirements.
Availability
MIC2287-15YML-TR is available at Aetrix Electronics and suitable for cell phone backlighting, GPS display illumination, digital camera assist lighting, and IP phone status indicators requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC2287-15YML-TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Micrel, Inc. was a U.S.-based semiconductor company specializing in analog, power management, and interface ICs before its acquisition by Microchip Technology in 2015. Known for high-reliability, thermally robust solutions.
The MIC2287 product line was designed specifically for portable white LED backlighting - emphasizing ultra-small footprint, high efficiency at low input voltages, and integrated fault protection for battery-powered consumer electronics.
FAQ
What is the exact overvoltage protection threshold for MIC2287-15YML-TR?
The MIC2287-15YML-TR has a guaranteed OVP threshold of 15 V, with a specified tolerance of 13 V to 16 V across temperature and process variation. This value is factory-trimmed and applies only to the MLF™-8 package variant - the OVP pin (Pin 6) must be connected directly to the output node to activate clamping. The MIC2287-15YML-TR does not support adjustment or external programming of this threshold.
Can MIC2287-15YML-TR drive 8 white LEDs in series?
No - the MIC2287-15YML-TR is rated for 15 V OVP and is intended for up to 6-series white LEDs (typical forward voltage ~3 V each, totaling ~18 V max). Driving 8 LEDs would exceed the 15 V OVP limit and trigger continuous clamping, risking instability or thermal stress. For 8-LED strings, use MIC2287-34YML-TR (34 V OVP) instead.
How does the 95 mV feedback voltage improve efficiency in MIC2287-15YML-TR?
The 95 mV feedback voltage in MIC2287-15YML-TR reduces power dissipation in the external current-sense resistor by ~75% compared to conventional 200 mV references. For example, at 20 mA LED current, a 6.3 Ω resistor dissipates only 24 µW versus 80 µW with 200 mV - lowering thermal load on PCB and extending battery life in portable devices powered by MIC2287-15YML-TR.
Is MIC2287-15YML-TR pin-compatible with MIC2287-24YML-TR?
Yes - MIC2287-15YML-TR and MIC2287-24YML-TR share identical 8-lead 2mm × 2mm MLF™ pinout, footprint, and thermal pad layout. The only difference is the factory-programmed OVP threshold (15 V vs. 24 V); all other electrical characteristics, pin functions, and recommended external components remain unchanged. Board reuse is fully supported.
What dimming methods does MIC2287-15YML-TR support, and how are they implemented?
MIC2287-15YML-TR supports two dimming methods: (1) PWM dimming via the EN pin (100 Hz–10 kHz), turning the IC fully on/off for high-efficiency brightness control; and (2) continuous dimming via DC voltage injection into the FB pin through a series resistor, enabling flicker-free intensity adjustment. Both methods are documented in the MIC2287-15YML-TR datasheet Figures 1 and 2 with validated component values.
MIC2287-15YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 2.5V
- Voltage - Supply (Max):
- 10V
- Voltage - Output:
- 15V
- Current - Output / Channel:
- 750mA (Switch)
- Frequency:
- 1.2MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight, Camera Flash
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2287-15YML-TR FAQ
1.How can I place an order for MIC2287-15YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2287-15YML-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MIC2287-15YML-TR reliable?
The price and inventory of MIC2287-15YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2287-15YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2287-15YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2287-15YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2287-15YML-TR?
MIC2287-15YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2287-15YML-TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MIC2287-15YML-TR?
For technical support, including MIC2287-15YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2287-15YML-TR requirements.
6.How does Aetrix verify that MIC2287-15YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2287-15YML-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC2287-15YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2287-15YML-TR?
All MIC2287-15YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2287-15YML-TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MIC2287-15YML-TR part is unused and in its original packaging.
Return procedure for MIC2287-15YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2287-15YML-TR Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
