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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

STMicroelectronics STCF01PMR

Name: STCF01PMR
Brand: STMicroelectronics
SKU: STCF01PMR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STCF01PMR

Manufacturer:: STMicroelectronics

Category:: LED Drivers

Package:: 10-VFDFN Exposed Pad

Datasheet:: STCF01PMR.pdf

Description:: IC LED DRIVER RGLTR 300MA 10DFN

Quantity:: RFQ Add To RFQ list

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Inventory:2,677

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Product details

Overview

STCF01PMR from STMicroelectronics is a dedicated step-up DC-DC converter IC for driving 2–4 white LEDs in cell phone camera flash applications. It operates from 2.6V to 5.5V input, delivers up to 17V output, supports dual current levels (up to 300mA), features 1.5MHz PWM control, and provides true load disconnection via SHDN pin.

For engineers reviewing the STCF01PMR datasheet, STCF01PMR pinout, STCF01PMR application, or STCF01PMR equivalent, key selection criteria include its constant-current LED drive architecture, OVP-protected boost topology, torch/flash mode logic interface, and DFN10L (3mm × 3mm) footprint compatibility with space-constrained mobile designs.

Technical Context

The STCF01 employs current-mode PWM control with duty cycle modulation based on feedback from the FB pin, enabling precise constant-current regulation across varying LED forward voltages. Its internal 1.2A peak switch current limit and 17V overvoltage protection threshold ensure safe operation with up to four series-connected white LEDs.

Two external resistors (R_HC, R_LC) set high- and low-level LED currents independently; SEL pin selects between them, while SHDN pin enables shutdown (<0.5µA I_Q) or forces torch mode with <200µs turn-on time - critical for burst photography timing.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.6V to 5.5V - compatible with single-cell Li-ion battery voltage range including discharge tail.
Max Output Voltage	17V - ensures sufficient headroom for four-series white LEDs (typ. 3.2V each × 4 = 12.8V).
Switching Frequency	1.5MHz (±300kHz) - enables use of small 10µH inductor and ceramic capacitors for compact layout.
Efficiency	90% @ 100mA, 80% @ 300mA - minimizes thermal stress and extends battery life during flash use.
Shutdown Current	<0.5µA - eliminates standby power drain when flash is inactive.
Overvoltage Threshold	17V to 19V - hardware-enforced clamp prevents LED or IC damage under open-load or transient conditions.
Current Setting Accuracy	±10% typical - achieved via resistor-ratio-based scaling with 2100 A/A and 2400 A/A multipliers.

Pinout & Package

STCF01PMR is housed in a thermally enhanced DFN10L (3mm × 3mm, 0.5mm pitch) package with exposed thermal pad. Pin 1 is marked by a dot; top-view orientation follows JEDEC MO-229 standard.

Pin/Terminal	Circuit Role	Design Meaning
PWRGND	Power ground reference	Common return for input/output capacitors and boost stage; must be low-inductance connection to minimize noise.
OVP	Overvoltage sense input	Monitors output voltage via resistor divider; triggers shutdown if >17V to protect LEDs and IC.
VI	Main supply input	Connects directly to battery; powers internal circuitry and boost switch stage.
HC	High-current setting	Voltage sensed at this pin sets flash-mode current via R_HC; VI − V_HC determines scaling.
LC	Low-current setting	Voltage sensed at this pin sets torch-mode current via R_LC; VI − V_LC determines scaling.
SGLGND	Logic ground reference	Separate digital ground for SEL/SHDN pins; improves noise immunity vs. PWRGND.
FB	Current feedback input	Measures LED current via external sense resistor; regulates output to maintain constant current.
SEL	Current level select	Logic-high selects HC-defined current (flash); logic-low selects LC-defined current (torch).
SHDN	Enable/disable control	High = shutdown (load disconnected, <0.5µA I_Q); low = active (flash/torch per SEL).
SW	Internal switch node	Drain of integrated N-channel MOSFET; connects to inductor and Schottky diode anode.

Key Features

Feature	Design Value
Dual-mode constant-current control	Independent flash (up to 300mA) and torch (lower current) modes selectable via SEL pin with sub-200µs response.
True load disconnection	SHDN high removes all DC path from battery to LEDs - no leakage current through LEDs or sense resistor.
Integrated 1.2A peak switch	Eliminates need for external MOSFET; supports 10µH inductor and fits in <10mm² PCB area.
17V overvoltage protection	Hardware-clamped OVP at OVP pin ensures robustness against open-circuit LED string failure.
Thermal shutdown with hysteresis	145°C trip point + 15°C hysteresis prevents oscillation during sustained high-power operation.

Applications

Smartphone Camera Flash

Tablet Integrated Flash

Use Scenario: Single- or multi-shot illumination for rear-facing camera modules in smartphones with Li-ion battery supply.

IC Role / Device Role / Timing Role: Constant-current boost controller providing regulated flash current with <200µs turn-on for precise exposure timing.

Use Value: Enables high-brightness flash without linear regulator losses, extending battery runtime and reducing thermal load on camera module PCB.

Use Scenario: Auxiliary lighting for front-facing video calls or document scanning in mid-size tablets.

IC Role / Device Role / Timing Role: Torch-mode LED driver delivering stable low-current illumination for extended-duration use.

Use Value: Maintains consistent brightness across battery discharge curve while consuming <0.5µA in standby - critical for always-on UX features.

Ultracompact Wearable Camera

Industrial Inspection Module

Use Scenario: Flash illumination in body-worn action cameras where board space and thermal envelope are severely constrained.

IC Role / Device Role / Timing Role: Space-optimized LED driver using DFN10L package and minimal external components (1 inductor, 2 caps, 1 diode).

Use Value: Achieves full 300mA flash output in <10mm² footprint - 40% smaller than discrete boost + current-sense solutions.

Use Scenario: Machine-vision lighting for handheld barcode scanners or portable inspection tools operating from rechargeable batteries.

IC Role / Device Role / Timing Role: Reliable current source tolerant of wide input voltage swing (2.6–5.5V) and ambient temperature variation (−40°C to +85°C).

Use Value: Delivers repeatable LED intensity across battery life and environmental conditions - essential for consistent image capture quality.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED boost driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX8630Y	Higher max output voltage (22V); requires external MOSFET; no integrated OVP comparator.	Supports >4 LED strings; less integrated protection; needs additional BOM components.	Choose when higher output voltage headroom or external switch flexibility is required.
TPS61310	Fixed 1.2MHz switching frequency; no dual-current selection pins; uses I²C interface for current control.	Requires microcontroller interface; lacks direct SEL/SHDN logic control; better for programmable systems.	Choose when system already uses I²C bus and needs software-configurable LED current profiles.

Compared with MAX8630Y and TPS61310, STCF01PMR offers the most direct hardware-controlled flash/torch implementation in the smallest footprint, with built-in OVP and true load disconnect - ideal for cost- and space-sensitive mobile camera modules where firmware overhead must be minimized.

Availability

STCF01PMR is available at Aetrix Electronics and suitable for smartphone camera flash, tablet auxiliary lighting, ultracompact wearable imaging, and industrial handheld inspection requiring stable component supply despite its obsolete status.

Supply support for STCF01PMR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, mixed-signal, power, and microcontroller products for automotive, industrial, and consumer markets.

The STCF01 belongs to ST's specialized LED driver product line targeting mobile imaging applications, engineered specifically for high-efficiency, low-footprint, dual-mode flash/torch operation in battery-powered camera modules.

FAQ

What is the function of the OVP pin on STCF01PMR?

The OVP pin monitors the boost converter output voltage via an external resistor divider. When the sensed voltage exceeds the internal 17V threshold, the device disables switching and clamps the output to prevent overvoltage damage to LEDs or downstream circuitry. This is a hardware-level protection independent of FB loop control.

How does the STCF01PMR achieve true load disconnection during shutdown?

When the SHDN pin is driven high, the internal power switches fully disconnect both the boost converter path and the current-sense feedback path. No DC current flows from VI to the LED string or FB resistor - verified by <0.5µA shutdown current and absence of voltage drop across the sense resistor in shutdown state.

Can STCF01PMR drive more than four white LEDs in series?

No. The 17V maximum output voltage limits operation to four typical white LEDs (3.2V–3.6V VF each). Attempting five LEDs would exceed the OVP threshold under normal operation, causing immediate shutdown. The IC is explicitly specified for 2–4 LED configurations per datasheet Section 6.

What is the role of SGLGND versus PWRGND on STCF01PMR?

SGLGND serves as the reference for digital control pins (SEL, SHDN, FB logic thresholds), isolating sensitive logic inputs from high-current power ground noise. PWRGND carries inductor return current and capacitor ripple; separating these grounds reduces coupling of switching transients into current-sense and enable logic paths.

STCF01PMR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 10-VFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: DC DC Regulator

Topology:: Step-Up (Boost)

Internal Switch(s):: Yes

Number of Outputs:: 1

Voltage - Supply (Min):: 2.6V

Voltage - Supply (Max):: 5.5V

Voltage - Output:: 17V

Current - Output / Channel:: 300mA (Flash)

Frequency:: 1.5MHz

Dimming:: -

Applications:: Camera Flash

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-DFN (3x3)

STCF01PMR FAQ

1.How can I place an order for STCF01PMR through Aetrix?

Please submit a Request for Quotation (RFQ) for STCF01PMR 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 STCF01PMR reliable?

The price and inventory of STCF01PMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STCF01PMR is usually 5 days.

3.What payment methods are accepted for STCF01PMR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STCF01PMR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STCF01PMR?

STCF01PMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STCF01PMR 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 STCF01PMR?

For technical support, including STCF01PMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STCF01PMR requirements.

6.How does Aetrix verify that STCF01PMR is sourced from the original manufacturer or authorized distributors?

All STCF01PMR 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 STCF01PMR meets industry standards.

7.What is the process for return or replacement of STCF01PMR?

All STCF01PMR units undergo pre-shipment inspection (PSI). If there is an issue with STCF01PMR, 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 STCF01PMR part is unused and in its original packaging.

Return procedure for STCF01PMR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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