STMicroelectronics STLD41PUR, LED Display Driver, 3 → 21 V, 8-Pin DFN

Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The STLD41 is a boost converter that operates from 3.0 V to 21 V and can provide an output voltage as high as 38 V. It can drive up to 40 white LEDs connected in 4 strings of 10 LEDs in series. The total output current capability is 120 mA at an output voltage of 38 V. Regulation is performed by the internal error amplifier which works with the feedback voltage from the sensing resistor. The device can be turned ON/OFF by way of the logic signal connected to the EN pin. The LEDs can be dimmed by applying a PWM signal to the PWM pin.

Boost DC-DC converter
Drives up to 40 LEDs (4 strings of 10) with a total current up to 120 mA
Input voltage range: 3.0 V to 21 V
Output current control
1.4 MHz fixed frequency PWM control
PWM input for output current dimming with frequency range 25 kHz - 50 kHz
2 A integrated switch
Overvoltage protection
Chip overtemperature detection and protection
Less than 1 μA standby current
Soft-start function
Package DFN8 (3 x 3) 0.65 mm pitch
Mini PCs
Game consoles

Attribute Value
Maximum Supply Current 10 (Typ.) μA
Mounting Type Surface Mount
Package Type DFN
Pin Count 8
Typical Operating Supply Voltage 3 → 21 V
Dimensions 3 x 3 x 0.95mm
Height 0.95mm
Length 3mm
Maximum Operating Temperature +85 °C
Minimum Operating Temperature -40 °C
Width 3mm
Output Voltage 38 V
Maximum Frequency 1.4MHz
Discontinued product