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Microchip Technology MIC2292C-15YML-TR
- Part No.:
- MIC2292C-15YML-TR
- Manufacturer:
- Microchip Technology
- Category:
- LED Drivers
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2292C-15YML-TR.pdf
- Description:
- IC LED DRVR RGLTR PWM 750MA 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,365
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Product details
Overview
MIC2292C-15YML-TR from Micrel is a high-frequency PWM white LED driver IC with integrated Schottky diode and 15V output overvoltage protection (OVP), designed for constant-current backlighting in portable devices. It operates at a fixed 1.6MHz switching frequency, supports 2.5V–10V input, delivers up to 34V output, and regulates LED current via a 95mV feedback reference. Used in cell phone and PDA displays requiring compact, RF-friendly DC/DC solutions.
For engineers reviewing the MIC2292C-15YML-TR datasheet, MIC2292C-15YML-TR pinout, MIC2292C-15YML-TR application, or MIC2292C-15YML-TR equivalent, key selection criteria include its 1.6MHz boost topology, internal Schottky diode, 15V OVP threshold, 8-pin 2mm × 2mm MLF® package, and compatibility with ceramic output capacitors in space-constrained LED driver designs.
Technical Context
The MIC2292C-15YML-TR implements constant-frequency, current-mode PWM control using an internal 1.6MHz oscillator, gm error amplifier with 95mV reference, and bipolar switch rated for 500mA peak current. Its functional block includes slope compensation, switch node (SW) drive, and dedicated OVP monitoring tied to the OUT pin.
It features dual ground pins (AGND and PGND) for analog/digital separation, a no-connect (NC) pin, and thermal shutdown at 150°C with 10°C hysteresis. The enable (EN) pin provides logic-level shutdown with <1µA quiescent current, while UVLO activates below 2.1V typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.6MHz - Enables use of small 10µH inductors and 0.22µF ceramic capacitors, avoiding IF band interference in RF-sensitive applications. |
| Feedback Voltage | 95mV ±10% - Sets LED current via external sense resistor; enables precise, stable constant-current regulation across temperature. |
| OVP Threshold | 15V (typical 14V) - Clamps output during open-circuit LED failure, protecting SW node and external components from overvoltage stress. |
| Input Voltage Range | 2.5V to 10V - Supports direct operation from single- or dual-cell Li-ion batteries and 3–4-cell alkaline/NiMH sources. |
| Switch Current Limit | 750mA (min) - Provides robust short-circuit and startup inrush current handling without external current limiting. |
| Shutdown Current | <1µA - Minimizes battery drain in standby mode, critical for always-on portable device power management. |
| Junction Temperature | –40°C to +125°C - Ensures reliable operation in automotive infotainment and industrial handheld environments. |
Pinout & Package
Package: 8-pin 2mm × 2mm MLF® (MicroLeadFrame) with exposed thermal pad (EP/GND), Pb-free finish, and –40°C to +125°C junction rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output & OVP Sense | Connects to output capacitor and LED anodes; monitors output voltage for 15V OVP clamp activation. |
| 2 - VIN | Power Input | Accepts 2.5V–10V supply; feeds internal bias circuitry and switch driver; requires local 1µF ceramic decoupling. |
| 3 - EN | Enable Control | Logic-high (>1.5V) enables regulation; logic-low (<0.4V) disables switching and reduces IQ to <1µA. |
| 4 - AGND | Analog Ground | Reference return for FB amplifier and OVP comparator; must be routed separately from PGND to minimize noise coupling. |
| 5 - NC | No Connect | Internally unconnected; must remain floating-no PCB trace or component connection permitted. |
| 6 - FB | Current Sense Input | 95mV reference node; connects to LED cathode via external sense resistor to set regulated LED current. |
| 7 - SW | Switch Node | Collector of internal bipolar transistor; drives external inductor; requires low-inductance layout to minimize EMI and ringing. |
| 8 - PGND | Power Ground | High-current return path for switch and Schottky diode; ties to EP pad for thermal and electrical performance. |
| EP - GND | Thermal Pad | Exposed copper pad on underside; must be soldered to large PCB copper area for thermal dissipation and low-impedance GND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Schottky Diode | Eliminates external rectifier, reducing BOM count and board area while enabling efficient 1.6MHz boost operation. |
| Stable with Ceramic Capacitors | Supports low-ESR 0.22µF–1µF ceramic output caps-no electrolytic or tantalum required for stability. |
| Two-Level OVP Options | 15V OVP variant (MIC2292C-15YML-TR) allows optimized selection of low-voltage-rated, miniature output capacitors and diodes. |
| UVLO and Thermal Shutdown | Prevents malfunction during brownout or overload; hysteresis ensures clean restart after fault clearance. |
| 0.8V Schottky Forward Drop | Reduces conduction loss at 150mA, improving efficiency in 3–6 LED string configurations. |
Applications
| Cell Phone Backlighting | PDA Display Driver |
|---|---|
Use Scenario: Driving 3–6 white LEDs in ultra-thin mobile handsets with Li-ion battery input (3.0–4.2V). IC Role / Device Role / Timing Role: Constant-current boost controller with 1.6MHz PWM dimming interface and 15V OVP for open-LED fault protection. Use Value: Enables compact, low-EMI display power with <1µA shutdown current to extend standby battery life. |
Use Scenario: Powering high-brightness QVGA LCD backlights in enterprise PDAs operating across 3–4 alkaline cells (4.5–6.0V). IC Role / Device Role / Timing Role: High-efficiency white LED driver with internal Schottky diode and ceramic-capacitor compatibility. Use Value: Reduces bill-of-materials by eliminating external diode and simplifies layout with minimal external components (4 total). |
| Digital Camera Flash/Backlight | IP Phone Display Illumination |
Use Scenario: Providing adjustable brightness for rear-panel OLED/LCD in compact digital cameras powered by dual Li-ion cells. IC Role / Device Role / Timing Role: PWM-dimmable boost regulator supporting both EN-based PWM dimming (100Hz–10kHz) and FB-based analog dimming. Use Value: Delivers >80% efficiency at 20mA per LED while maintaining RF quietness due to 1.6MHz fixed-frequency operation. |
Use Scenario: Illuminating monochrome or color LCDs in VoIP desk phones with 5V rail derived from PoE or wall adapter. IC Role / Device Role / Timing Role: Constant-current LED driver with UVLO and thermal protection for unattended, long-duration operation. Use Value: Ensures robust field reliability with –40°C to +125°C junction rating and 15V OVP guarding against LED-string disconnection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar white LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1910ETD+ | 2.5V–5.5V input range; 1.2MHz switching; no integrated Schottky; requires external diode. | Limited to single-cell Li-ion; higher external component count; lower max output voltage (28V). | Choose when cost sensitivity outweighs board area constraints and 15V OVP is not required. |
| TPS61160DRVR | 2.7V–5.5V input; 1.2MHz; integrated MOSFET (not bipolar); 28V OVP option only; no 15V variant. | Optimized for single-cell systems; lacks 15V OVP granularity; uses different feedback architecture (100mV ref). | Prefer for newer designs targeting TI ecosystem compatibility and higher efficiency above 20mA, but verify OVP alignment. |
Compared with MAX1910ETD+ and TPS61160DRVR, the MIC2292C-15YML-TR offers unique 15V OVP precision, bipolar switch ruggedness for inrush tolerance, and native support for wider 2.5V–10V inputs-making it optimal for multi-chemistry battery systems where output voltage headroom and fault protection are tightly constrained.
Availability
MIC2292C-15YML-TR is available at Aetrix Electronics and suitable for cell phone backlighting, PDA display drivers, digital camera illumination, and IP phone LCD applications requiring stable component supply, long-lifecycle availability, and Pb-free compliance.
Supply support for MIC2292C-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 timing solutions before its acquisition by Microchip Technology in 2015. Known for high-reliability, application-optimized ICs.
The MIC2292/93C family was designed specifically for space-constrained, battery-powered white LED backlighting-emphasizing high-frequency operation, integrated protection, and minimal external component count.
FAQ
What is the switching frequency of the MIC2292C-15YML-TR?
The MIC2292C-15YML-TR operates at a fixed 1.6MHz PWM switching frequency. This high frequency allows use of small 10µH inductors and 0.22µF ceramic output capacitors, minimizing solution size and avoiding interference with cellular or Wi-Fi IF bands. The frequency remains stable across input voltage and load conditions per datasheet specifications.
Does the MIC2292C-15YML-TR include an integrated Schottky diode?
Yes, the MIC2292C-15YML-TR integrates a Schottky diode with a typical forward voltage drop of 0.8V at 150mA. This eliminates the need for an external rectifier, reducing BOM count, PCB area, and parasitic losses-critical for compact portable LED driver designs.
What is the purpose of the NC pin on the MIC2292C-15YML-TR?
Pin 5 of the MIC2292C-15YML-TR is labeled NC (No Connect) and has no internal connection to the die. It must remain unconnected on the PCB-no trace, pull-up, pull-down, or capacitor should be attached. Routing to this pin may cause noise coupling or mechanical stress on the MLF® package.
How does the 15V overvoltage protection work in the MIC2292C-15YML-TR?
The MIC2292C-15YML-TR monitors the OUT pin voltage via a dedicated OVP circuit. When output exceeds ~14V (typical), it clamps the output to protect the internal switch and external components from damage during LED open-circuit faults. This 15V OVP threshold is factory-set and specific to the -15YML variant.
Can the MIC2292C-15YML-TR drive more than six white LEDs?
The MIC2292C-15YML-TR supports output voltages up to 34V, enabling driving of up to eight standard white LEDs (3.2V VF each) in series. However, the 15V OVP option limits safe operating output to ≤15V-so for >4 LEDs (≥12.8V), ensure sufficient margin below 15V or confirm system-level fault tolerance before deployment.
MIC2292C-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:
- -
- Current - Output / Channel:
- 750mA (Switch)
- Frequency:
- 1.6MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2292C-15YML-TR FAQ
1.How can I place an order for MIC2292C-15YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2292C-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 MIC2292C-15YML-TR reliable?
The price and inventory of MIC2292C-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 MIC2292C-15YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2292C-15YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2292C-15YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2292C-15YML-TR?
MIC2292C-15YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2292C-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 MIC2292C-15YML-TR?
For technical support, including MIC2292C-15YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2292C-15YML-TR requirements.
6.How does Aetrix verify that MIC2292C-15YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2292C-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 MIC2292C-15YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2292C-15YML-TR?
All MIC2292C-15YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2292C-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 MIC2292C-15YML-TR part is unused and in its original packaging.
Return procedure for MIC2292C-15YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2292C-15YML-TR Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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