SOT23 LED Drivers
Description
SOT23 LED drivers are compact integrated circuits designed to control the current flow to LEDs, ensuring they operate efficiently and with optimal brightness. These drivers are housed in a small SOT23 package, which is known for its space-saving design, making it ideal for applications where board space is limited.
Working Principle
SOT23 LED drivers work by regulating the current supplied to the LEDs, maintaining a constant current output despite variations in input voltage or LED forward voltage. This regulation is crucial because LEDs are current-driven devices, and fluctuations in current can lead to variations in brightness and potentially damage the LEDs. The drivers often incorporate features such as over-temperature protection and low quiescent current standby modes to enhance efficiency and reliability. By using a switching power supply, these drivers minimize heat generation and improve energy efficiency compared to linear regulators.
Applications
SOT23 LED drivers are used in a variety of applications where space is a constraint and efficient LED operation is required. Specific examples include portable devices like cell phones and digital cameras, where they manage the backlighting of displays. They are also employed in automotive applications, such as central information displays and indicator lighting, where compact size and reliability are critical.
Advantages over other LED Drivers
One of the primary advantages of SOT23 LED drivers is their small footprint, which allows for integration into compact designs without sacrificing performance. They offer improved accuracy in LED applications and often have a lower bill of materials (BOM) cost compared to discrete designs. Additionally, their ability to drive both low- and high-side LED chains provides flexibility in design.
Limitations
Despite their advantages, SOT23 LED drivers have limitations, such as a lower power handling capability compared to larger packages. This can restrict their use in high-power applications. Additionally, the small package size can make thermal management more challenging, potentially leading to overheating if not properly addressed.
Considerations
When selecting SOT23 LED drivers, several factors should be considered. Initial costs are generally lower due to the reduced BOM, but operating expenses can vary depending on the efficiency of the driver in the specific application. Durability is typically high, but accuracy can be affected by temperature variations, so thermal management is crucial. Replacement and maintenance costs are generally low, given the reliability of these drivers, but careful consideration of the operating environment is necessary to ensure longevity.
from DigiKey
LED Driver IC 2 Output Linear PWM Dimming 25mA SOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 25
- Input Voltage: 2.7 to 5.5
from RS Components, Ltd.
6V-60V input,1A LED driver,ZXLD1362 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 1250
- Type: Dimmable
- Output Power: 1
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 1A TSOT-23-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 1000
- Input Voltage: 7 to 36
- Features: RoHS Compliant
from RS Components, Ltd.
LED DRVR 7Segment 9V to 24V 5Pin TSOT23 [See More]
- Form Factor: Intgrated Circuit (IC)
- Package Type: Sot-23
- Type: Dimmable
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output AC DC Offline Switcher Step-Down (Buck) Analog Dimming TSOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Features: RoHS Compliant
- Input Voltage: 17 to 31
from RS Components, Ltd.
Step-down LED Driver 1.5MHz 6V 1A SOT-25 [See More]
- Form Factor: Intgrated Circuit (IC)
- Package Type: Sot-23
- Type: Dimmable
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming 325mA (Switch) TSOT-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 28
- Input Voltage: 1.6 to 5.5
- Output Current: 325
from RS Components, Ltd.
1.2MHz PWM White LED Driver OVP TSOT23-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 37
- Type: Dimmable
- Package Type: Sot-23
from DigiKey
LED Driver IC 1 Output AC DC Offline Switcher Flyback PWM Dimming TSOT-23-8 [See More]
- Form Factor: Intgrated Circuit (IC)
- Features: RoHS Compliant
- Input Voltage: 12 to 28
from RS Components, Ltd.
onsemi FAN5333ASX Display Driver [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Power: 1.5
- Type: Dimmable
- Package Type: Sot-23
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming 4A TSOT-23-8 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 36
- Input Voltage: 3 to 36
- Output Current: 4000
from RS Components, Ltd.
Texas Instruments TPS61165DBVT [See More]
- Form Factor: Intgrated Circuit (IC)
- Package Type: Sot-23
- Type: Dimmable
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming 320mA (Switch) TSOT-23-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 36
- Input Voltage: 2.5 to 10
- Output Current: 320
from DigiKey
LED Driver IC 1 Output Linear Dimming 10mA TO-236AB [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 16
- Input Voltage: ? to 18
- Output Current: 10
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) PWM Dimming 1.2A (Switch) SOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 3 to 38
- Input Voltage: 3 to 18
- Output Current: 1200
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) PWM Dimming 20mA TSOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 20
- Input Voltage: 2.7 to 5.5
- Output Current: 20
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 1.5A SOT-23-THIN [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 1500
- Input Voltage: 4 to 30
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output Linear Constant Current PWM Dimming 100mA SOT-26 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 0.5000 to 40
- Input Voltage: 5 to 42
- Output Current: 100
from DigiKey
LED Driver IC 1 Output DC DC Controller Step-Up (Boost) Dimming TSOT-23-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Features: RoHS Compliant
- Input Voltage: 0.8000 to 8
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Dimming 50mA SOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 50
- Input Voltage: 1.8 to 8
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output DC DC Controller Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Dimming 6-TSOP [See More]
- Form Factor: Intgrated Circuit (IC)
- Features: RoHS Compliant
- Input Voltage: 9.4 to 25.5
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) PWM Dimming 1.2A SOT-23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 1200
- Input Voltage: 3 to 26
from DigiKey
LED Driver IC 1 Output Linear Linear Analog, PWM Dimming 10mA PG-SOT23-6 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Current: 10
- Input Voltage: ? to 60
- Features: RoHS Compliant
from DigiKey
LED Driver IC 1 Output DC DC Regulator Step-Up (Boost) Analog, PWM Dimming 40mA TSOT-23-5 [See More]
- Form Factor: Intgrated Circuit (IC)
- Output Voltage: 20
- Input Voltage: 2.5 to 7
- Output Current: 40
from PREMA Semiconductor GmbH
Power LED drivers for up to 40V supply voltage. Driving more than 9W output power with external switch. Small package SOT23-5L for PR4103 [See More]
- Form Factor: Intgrated Circuit (IC)
- Package Type: SOT23
- Input Voltage: 21
- Features: ESD Protected; RoHS Compliant
from PREMA Semiconductor GmbH
The core of this white LED driver consists of a step-up converter with current output, which provides an output voltage of typically 3.6 V for white LEDs. The input voltage can be as low as 0.9V, thus allowing a. single cell battery operation. For operation of up three LEDs is only one external... [See More]
- Form Factor: Intgrated Circuit (IC)
- Package Type: SOT23
- Input Voltage: 0.9000
- Features: ESD Protected; RoHS Compliant