Driver

LM8502 Datasheet PDF – Low-Side LED Driver

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Part Number: LM8502

Function: 1.2A Dual High-Side Flash LED Driver

Package: 30-Bump (2.42 x 2.77 mm x 0.6 mm) 0.4 Pitch DSBGA

Manufacturer: Texas Instruments

Pinouts:

LM8502 datasheet

 

Description

The LM8502 is a versatile LED driver suitable for multiple applications. It includes a 2MHz, fixed frequency synchronous boost converter, 10 current sink LED outputs, 2 outputs for flash or haptic applications, ambient light sensing and PWM input.

The 10 current sink LED outputs offer individual current control through an I2C-compatible interface.

Current can be accurately controlled with a full-scale setting and 8-bit current control. The LM8502 also enables LED control with group faders and lighting engines. Group faders enable single I2C register writes for multiple LED outputs with fading, whereas lighting engines with SRAM memory enable engine driven lighting sequences. Each LED output can be powered either from V OUT or an external voltage supply.

Features

1. 10 Programmable Low-Side Current Sinks with Flexible Powering from VOUT or External Voltage Source

2. 1.2A Dual Flash LED Driver with Flash, Torch and Voltage modes

3. Ambient Light Sensing Capability with Two Inputs

4. Up to 4000:1 dimming ratio for LED outputs

5. Flash LED Thermal Sensing and Current Scaleback

Applications:

• Camera Phone LED Flash
• General Illumination in Portable Devices
• Haptic Feedback Motor Driver
• Fun Lighting

Other data sheets are available within the file:

8502, LM8502TME, LM8502TME/NOPB, LM8502TMX

LM8502 Datasheet PDF Download


LM8502 pdf

 

CL1501 Datasheet – Non-isolated Buck Offline LED Driver

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This is one of the LED Driver types.

Part Number: CL1501

Function: Non-isolated Step-Down LED Constant Current Driver

Package: SOP-8 Pin Type

Manufacturer: Chiplink ( www.chiplink-tech.com )

See the preview image and the PDF file for more information.

Image
cl1501-datasheet-pinout

 

Description

CL1501 is a high performance step-down constant current driver IC, can achieve high precision constant current LED driver. The chip works in the inductor current Pro Continuous mode (TM), the working voltage covering 85Vac ~ 265Vac. Integrated 500V power devices within the chip, peripheral applications without auxiliary winding inspection Measurement and power supply to achieve high precision constant current, greatly reducing the external cost.

CL1501 has a variety of constant current auxiliary function, to achieve excellent linear compensation and high precision constant current effect. CL1501 work in the critical continuous inductor current Mode (TM), the output current does not change with the change in inductance and load, with excellent load regulation characteristics.

CL1501 integrates a variety of protection features, greatly enhancing the reliability of the system. Protection features include LED open-circuit protection, LED short-circuit protection, and under-voltage protection Voltage lock, current sampling resistor short-circuit protection and over-temperature regulation.

 

CL1501 pinout

cl1501-application-circuit

 

Features

1. Wide input voltage
2. ± 5% LED output current accuracy
3. Internal integrated 500V power tube
4. chip ultra-low operating current
5. Inductor current critical continuous mode (TM)
6. No auxiliary winding
7. Excellent line voltage regulation and load regulation
8. LED on / short circuit protection
9. current sampling resistor short-circuit protection
10. Undervoltage Lockout (UVLO)
11. Over temperature adjustment function

 

CL1501 Datasheet


 

 

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