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STMicroelectronics STCS1PUR — Discrete Semiconductors

STMicroelectronics STCS1PUR Linear LED Driver, 1.5 A, PWM

MPNSTCS1PUR
End of Life

STMicroelectronics STCS1PUR linear LED driver, PWM dimming, 1.5 A output, 4.5-40 V supply, 8-VFDFN exposed pad, surface mount, active.

$2.4Ref. price · indicative, final on quote
STMicroelectronics STCS1PUR datasheet (PDF)
Packaging8-VFDFN Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STCS1PUR specifications
ParameterValue
TypeLinear
MountingSurface Mount
Supply voltage4.5V
Current - output (Channel)1.5A
I/O channels1
Operating temperature-40°C ~ 150°C (TJ)
DimmingPWM
PackageTape & Reel (TR); Cut Tape (CT)
Case8-VFDFN Exposed Pad
Internal switchYes

Product details

Linear LED driver with 1.5 A sink and PWM dimming

The STCS1PUR is a linear LED driver from STMicroelectronics, delivering a regulated 1.5 A output current to a single LED string. PWM dimming input allows brightness control independent of the supply rail — the driver acts as a constant-current sink, so dimming resolution is set by the PWM frequency and duty cycle from the host controller. Supply range spans 4.5 V to 40 V, covering common automotive and industrial rails (12 V, 24 V, 36 V). The internal switch handles the full 1.5 A load, so no external MOSFET is needed — the 8-DFN (3x3 mm) package with exposed pad dissipates the heat through the PCB copper plane. Junction temperature rating extends to 150 °C, suitable for under-hood or high-ambient enclosures.

Tape-and-reel or cut-tape packaging is available; the reel quantity is standard for this package family. No special handling beyond MSL level typical for DFN packages — confirm the moisture sensitivity level on the reel label before bake-out decisions.

ROHS3 compliant.

Frequently asked questions

Will STCS1PUR drop into a board that was specified around STCS1PHR without rewiring?

The STCS1PHR and STCS1PUR share the same electrical ratings — 1.5 A output, PWM dimming, 4.5-40 V supply, same 8-DFN package and pinout. They are functionally identical; the suffix difference is packaging or tape/reel variant. A board laid out for the STCS1PHR will accept the STCS1PUR without a layout change.

What compliance documentation does STMicroelectronics provide for STCS1PUR?

The STCS1PUR is ROHS3 compliant. STMicroelectronics provides a declaration of conformity and material composition data upon request through the distribution channel. No UL or IEC certification is listed in the standard product documentation.