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Vishay Siliconix SIP12401DMP-T1-E3
- Part No.:
- SIP12401DMP-T1-E3
- Manufacturer:
- Vishay Siliconix
- Category:
- LED Drivers
- Package:
- PowerPAK® MLP33-6
- Datasheet:
-
SIP12401DMP-T1-E3.pdf
- Description:
- IC LED DRIVER CTRLR DIM PPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,750
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Product details
Overview
SiP12401DMP-T1-E3 from Vishay Siliconix is a 600 kHz fixed-frequency voltage-mode boost controller IC designed to drive series-connected white LEDs from 1.8 V to 5.0 V input sources (e.g., double AA or Li-ion batteries). It integrates UVLO, soft-start, and logic-controlled shutdown (<1 µA), delivering regulated LED current with analog brightness control via the EXT pin and feedback reference of 0.3 V.
For engineers reviewing the SiP12401DMP-T1-E3 datasheet, SiP12401DMP-T1-E3 pinout, SiP12401DMP-T1-E3 application, or SiP12401DMP-T1-E3 equivalent, key selection criteria include its 6-pin PowerPAK MLP33 package, internal frequency compensation, PWM dimming support via XSHD, and compatibility with external low-rDS(on) MOSFETs for high-efficiency backlighting in space-constrained portable devices.
Technical Context
The SiP12401DMP-T1-E3 implements voltage-mode PWM control with fully integrated frequency compensation, eliminating external compensation components. Its error amplifier compares FB voltage (0.3 V nominal) against an internal reference to regulate output current through duty-cycle modulation of the EXT-driven external MOSFET.
Operation includes a controlled soft-start phase limiting inrush current and voltage overshoot, followed by stable 600 kHz switching across -40 °C to 85 °C. Shutdown is asserted via XSHD pin (logic-low <0.2 V), reducing quiescent current to under 1 µA while maintaining full functionality on wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.0 V - supports single/dual alkaline, NiMH, or Li-ion battery inputs without external regulation |
| Switching Frequency | 600 kHz fixed - enables compact external inductor (e.g., 22 µH) and low-profile ceramic output capacitors |
| Feedback Reference | 0.3 V ±0.018 V - sets precise LED current via external sense resistor; low drift ensures stable brightness over temperature |
| Shutdown Current | <1 µA - extends battery life in standby mode for handheld and portable applications |
| Duty Cycle Limit | 77 % to 85 % - constrains maximum on-time to prevent instability under low-input/high-output conditions |
| UVLO Threshold | 1.65 V to 1.77 V - prevents erratic startup during battery depletion while allowing operation down to 1.8 V nominal |
| Operating Temperature | -40 °C to +85 °C - qualified for industrial-grade portable electronics including digital cameras and LCD modules |
Pinout & Package
SiP12401DMP-T1-E3 is housed in a lead-free 6-pin PowerPAK MLP33-6 package (3.0 mm × 3.0 mm × 0.9 mm), featuring separate AGND and PGND pins for noise isolation and an exposed thermal pad for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XSHD (Pin 1) | Logic shutdown control input | Active-low enable: <0.2 V = shutdown (<1 µA IQ); >1.2 V = normal operation |
| VIN (Pin 2) | Main power supply input | Accepts 1.8–5.0 V battery source; powers internal circuitry and bias networks |
| FB (Pin 3) | Output current feedback node | Monitors voltage across external sense resistor; regulates LED current to maintain 0.3 V reference |
| AGND (Pin 4) | Analog ground reference | Return path for feedback amplifier, oscillator, and control logic-must be routed separately from PGND |
| PGND (Pin 5) | Power ground return | High-current return for external MOSFET source and boost inductor-minimizes switching noise coupling |
| EXT (Pin 6) | External MOSFET gate driver output | Drives gate of discrete N-channel MOSFET (e.g., Si2302ADS); peak current capability supports fast switching |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-mode PWM with internal compensation | Eliminates external RC compensation network, reducing BOM count and layout sensitivity |
| Integrated soft-start | Gradually ramps output voltage and limits inrush current to protect LEDs and external components |
| Analog LED brightness control | Adjusts regulated current via variable DC voltage applied to EXT pin-no PWM signal required |
| Separate AGND/PGND pins | Prevents switching noise from corrupting feedback accuracy and improves current regulation stability |
| Low shutdown current | Sub-1 µA quiescent draw enables multi-week battery shelf life in always-on portable systems |
Applications
| White LED Backlighting | LCD Bias Supplies |
|---|---|
Use Scenario: Driving 4-series white LEDs in handheld LCD displays powered by dual AA cells. IC Role / Device Role / Timing Role: Boost controller regulating constant current to ensure uniform LED brightness without ballast resistors. Use Value: 80 % typical efficiency at 3.6 V input enables >5 hours runtime per battery charge in compact form factor. | Use Scenario: Generating stable high-voltage bias (e.g., 15 V) for TFT-LCD panel gate drivers from 3.3 V system rail. IC Role / Device Role / Timing Role: Fixed-frequency boost converter with precision feedback reference enabling accurate voltage scaling. Use Value: 0.3 V FB tolerance (±3 %) ensures ±1 % output voltage regulation critical for display contrast consistency. |
| Digital Cameras | Portable Medical Devices |
Use Scenario: Flash LED power management in compact point-and-shoot cameras using single Li-ion cell. IC Role / Device Role / Timing Role: High-frequency (600 kHz) boost controller enabling miniature inductor size and minimal EMI radiation. Use Value: 600 kHz switching allows use of 22 µH inductors <2 mm height-critical for ultra-thin camera modules. | Use Scenario: Backlighting diagnostic OLED displays in battery-powered handheld medical testers. IC Role / Device Role / Timing Role: Low-quiescent-current boost controller supporting long standby time between clinical measurements. Use Value: <1 µA shutdown current extends 2000 mAh Li-ion battery life to >12 months in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX16813ETA+T | Higher 1.2 MHz switching frequency; integrated MOSFET; no external EXT driver required | Targets higher-power LED strings (>500 mA); less flexible for ultra-low-IQ portable use | Choose MAX16813ETA+T when board space is critical and integrated FET suffices; SiP12401DMP-T1-E3 preferred for discrete MOSFET optimization and sub-1 µA shutdown. |
| TPS61061DRVR | Integrated 2-A switch; 1.2-MHz operation; analog dimming via CTRL pin; no separate AGND/PGND | Designed for single-cell Li-ion to 5-V output; lacks dedicated power/ground separation for high-noise environments | Choose TPS61061DRVR for simpler layout and higher output current; SiP12401DMP-T1-E3 selected where noise-sensitive analog feedback and external MOSFET thermal management are prioritized. |
Compared with MAX16813ETA+T and TPS61061DRVR, SiP12401DMP-T1-E3 offers superior ground noise isolation via split AGND/PGND, lower shutdown current, and external MOSFET flexibility-making it optimal for cost-sensitive, battery-life-critical white LED backlighting in industrial handhelds.
Availability
SiP12401DMP-T1-E3 is available at Aetrix Electronics and suitable for white LED backlighting, LCD bias supplies, and portable medical devices requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SiP12401DMP-T1-E3 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
Vishay Siliconix designs high-performance discrete semiconductors and ICs focused on power management, sensing, and signal conditioning for industrial, automotive, and consumer applications.
The SiP12401 product line delivers highly integrated, thermally efficient boost controllers optimized for battery-powered white LED lighting-emphasizing low IQ, analog dimming, and robust operation across wide input voltage ranges.
FAQ
What is the recommended external MOSFET for SiP12401DMP-T1-E3?
The SiP12401DMP-T1-E3 drives external N-channel MOSFETs via its EXT pin. Vishay's own Si2302ADS (30 V, 2.5 A, 0.07 Ω rDS(on)) is validated in the typical application circuit. Any logic-level MOSFET with VGS(th) ≤1.5 V, rDS(on) <0.1 Ω, and SO-23 or similar small-outline package is compatible. Gate drive strength supports rise/fall times under 20 ns with proper layout.
Does SiP12401DMP-T1-E3 support PWM dimming?
Yes, SiP12401DMP-T1-E3 supports PWM dimming by applying a 200 Hz, 50 % duty cycle signal to the XSHD pin, as shown in Figure 1 of the datasheet. During low pulses, the device shuts down completely (<1 µA IQ), extinguishing the LEDs; high pulses resume full operation. This method avoids color shift associated with analog dimming at very low currents.
What is the purpose of separate AGND and PGND pins on SiP12401DMP-T1-E3?
The SiP12401DMP-T1-E3 uses separate AGND (Pin 4) and PGND (Pin 5) to isolate sensitive analog circuitry-including the error amplifier and oscillator-from high di/dt switching return paths. Routing AGND to quiet ground planes and PGND directly to the boost inductor and MOSFET source minimizes noise coupling into the 0.3 V feedback reference, ensuring stable current regulation.
Can SiP12401DMP-T1-E3 operate from a single 1.5 V alkaline cell?
No, SiP12401DMP-T1-E3 requires minimum 1.8 V input per the recommended operating range. A single fresh alkaline cell starts at ~1.6 V and drops rapidly; two cells in series (2.4–3.2 V) meet the specification reliably. For true single-cell operation, consider alternatives like the TPS61061, which supports down to 0.9 V input.
Is SiP12401DMP-T1-E3 RoHS-compliant and halogen-free?
Yes, SiP12401DMP-T1-E3 is RoHS-compliant and halogen-free per Vishay's documentation (Document Number: 73193, Rev. C). The "-E3" suffix denotes lead-free (Pb-free) termination and compliance with JEDEC JS709B and JESD204 standards. Full material declarations and test reports are available upon request from Aetrix Electronics.
SIP12401DMP-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- PowerPAK® MLP33-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- DC DC Controller
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 1.8V
- Voltage - Supply (Max):
- 5V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 600kHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerPAK® MLP33-6
SIP12401DMP-T1-E3 FAQ
1.How can I place an order for SIP12401DMP-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP12401DMP-T1-E3 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 SIP12401DMP-T1-E3 reliable?
The price and inventory of SIP12401DMP-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP12401DMP-T1-E3 is usually 5 days.
3.What payment methods are accepted for SIP12401DMP-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP12401DMP-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP12401DMP-T1-E3?
SIP12401DMP-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP12401DMP-T1-E3 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 SIP12401DMP-T1-E3?
For technical support, including SIP12401DMP-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP12401DMP-T1-E3 requirements.
6.How does Aetrix verify that SIP12401DMP-T1-E3 is sourced from the original manufacturer or authorized distributors?
All SIP12401DMP-T1-E3 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 SIP12401DMP-T1-E3 meets industry standards.
7.What is the process for return or replacement of SIP12401DMP-T1-E3?
All SIP12401DMP-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP12401DMP-T1-E3, 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 SIP12401DMP-T1-E3 part is unused and in its original packaging.
Return procedure for SIP12401DMP-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SIP12401DMP-T1-E3 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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