The STLD40D is a boost converter LED driver designed for powering white LEDs, particularly suitable for large display backlighting applications. It operates with an input voltage range of 3.0 V to 5.5 V and can output a maximum voltage of 37 V, allowing it to drive up to 10 white LEDs in series with a maximum output current of 20 mA. The device features pulse frequency modulation (PFM) control for efficient operation and includes an enable pin for ON/OFF control and PWM dimming capabilities. It also incorporates over-voltage protection with automatic restart and has a low shutdown current of less than 1 µA. The compact QFN8 package measures 3 x 3 mm, making it suitable for space-constrained applications such as mobile phones and PDAs.
Manufacturer: STMicroelectronics
Win Source Part Number: 935459-STLD40DPUR
Operating Temperature Range: -40°C ~ 85°C (TA)
Features: LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) PWM Dimming 20mA 8-QFN (3x3)
Package: 8-VDFN Exposed Pad
Package: Reel - TR
Mounting: Surface Mount
Family Name: STLD40
Categories: Integrated Circuits (ICs)
Case / Package: 8-QFN (3x3)
ECCN: EAR99
Popularity: High
Fake Threat In the Open Market: 54 pct.
Supply and Demand Status: Balance
Quantity per package: 3000
MSL Level: 1 (Unlimited)
Estimated Pruduction Lead Time: 19 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Other Part Number: 497-8927-6, 497-8927-2, 497-8927-1
DC/DC Boost Controller, 37V Out, 20mA, QFN, 5.5V In Product overview: STLD40DPUR from STMicroelectronics is a LED Driver IC for LED lighting, display backlights, indicator control, automotive lighting, signage, and regulated current drive circuits. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Boost, 37V, 20mA, 5.5V, QFN. Search-friendly keywords include LED driver IC, constant current, lighting control, display backlight, Boost, 37V, 20mA, 5.5V, External/Internal LED Drivers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 137-STLD40DPUR can be used for catalog matching and distributor lookup.
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) PWM Dimming 20mA 8-QFN (3x3)
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IC, LED DRIVER, QFN; Device Topology:Boost (Step Up); Input Voltage Min:3V; Input Voltage Max:5.5V; Output Voltage Max:37V; Output Current Max:20mA; Switching Frequency:-; No. of Outputs:1Outputs; IC Mounting:Surface Mount; MSL:- RoHS Compliant: Yes
LED DRIVER, BOOST, QFN-8; Device Topology:Boost (Step Up); Input Voltage Min:3V; Input Voltage Max:5.5V; Output Voltage Max:37V; Output Current Max:20mA; Switching Frequency:-; No. of Outputs:1Outputs; IC Mounting:SMD; Driver Case RoHS Compliant: Yes
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | 935459-STLD40DPUR | 137-STLD40DPUR | 497-8927-2-ND | STLD40DPUR | STLD40DPUR | 25R9422 |
| Product Name | PMIC - PMIC - LED Drivers - STLD40DPUR | Boost 37V 20mA 5.5V LED Driver IC | LED Drivers | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers | PMIC - LED Drivers | Ic, Led Driver, Qfn; Device Topology Stmicroelectronics |
| Form Factor | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | |||
| Package Type | 8-QFN (3x3) | |||||
| Output Voltage | 37 volts | 37 volts | 37 volts | |||
| Number of Channels | 1 # |
