LM8502 Series

Intelligent lighting management unit That Fuses a 1.2A dual high-side Flash LED Drive

Catalog

Intelligent lighting management unit That Fuses a 1.2A dual high-side Flash LED Drive

Part	Supplier Device Package	Applications	Voltage - Supply (Max)	Mounting Type	Type	Internal Switch(s)	Topology	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Frequency	Package / Case	Current - Output / Channel
Texas Instruments LM8502TMX/NOPB	30-DSBGA	Backlight Camera Flash	5.5 V	Surface Mount	DC DC Regulator		Step-Up (Boost)	12	-30 °C	85 °C	2 MHz	30-WFBGA DSBGA	2.3 A
Texas Instruments LM8502TME/NOPB	30-DSBGA	Backlight Camera Flash	5.5 V	Surface Mount	DC DC Regulator		Step-Up (Boost)	12	-30 °C	85 °C	2 MHz	30-WFBGA DSBGA	2.3 A

Catalog

Intelligent lighting management unit That Fuses a 1.2A dual high-side Flash LED Drive

Key Features

• 10 Programmable Low-Side Current Sinks with Flexible Powering from VOUTor External Voltage Source1.2A Dual Flash LED Driver with Flash, Torch and Voltage modesAmbient Light Sensing Capability with Two InputsUp to 4000:1 dimming ratio for LED outputsFlash LED Thermal Sensing and Current ScalebackHardware Flash, Torch Enable and Dual Synchronization Inputs for RF Power Amplifier Pulse EventsHaptic Feedback Motor DriverTwo Lighting Engines for User-Defined Lighting Sequences with 48 * 16 Bits of SRAM MemoryExternal Clock Pin for Power SaveExternal PWM Control Capability Enabling for Example Dynamic Backlight ControlFast I2C-Compatible InterfaceGeneral Purpose ADC for Measuring, i.e., LED Output VoltagesUltra-Small Solution Area < 32 mm230-Bump (2.42 x 2.77 mm x 0.6 mm) 0.4 Pitch DSBGA Package10 Programmable Low-Side Current Sinks with Flexible Powering from VOUTor External Voltage Source1.2A Dual Flash LED Driver with Flash, Torch and Voltage modesAmbient Light Sensing Capability with Two InputsUp to 4000:1 dimming ratio for LED outputsFlash LED Thermal Sensing and Current ScalebackHardware Flash, Torch Enable and Dual Synchronization Inputs for RF Power Amplifier Pulse EventsHaptic Feedback Motor DriverTwo Lighting Engines for User-Defined Lighting Sequences with 48 * 16 Bits of SRAM MemoryExternal Clock Pin for Power SaveExternal PWM Control Capability Enabling for Example Dynamic Backlight ControlFast I2C-Compatible InterfaceGeneral Purpose ADC for Measuring, i.e., LED Output VoltagesUltra-Small Solution Area < 32 mm230-Bump (2.42 x 2.77 mm x 0.6 mm) 0.4 Pitch DSBGA Package

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 VOUTor an external voltage supply. The flash function is capable of driving 2 LEDs, each having 600 mA maximum current, or a single LED up to a 1.2A maximum current. A hardware flash enable provides a direct interface to trigger the flash pulse. Dual TX inputs allow the flash to be synchronized with the RF power system to prevent excessive current draw from the system power supply. The LM8502 also offers LED thermal sensing as a safety procedure for flash and separate indicator LED. The LM8502 has two inputs for Ambient Light Sensing — together with the PWM input they enable Dynamic Backlight Control. The LM8502 may also be used for haptic motor driving instead of flash. When the device is idle, featured Power-save mode and use of an external clock reduce current consumption significantly. 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 VOUTor an external voltage supply. The flash function is capable of driving 2 LEDs, each having 600 mA maximum current, or a single LED up to a 1.2A maximum current. A hardware flash enable provides a direct interface to trigger the flash pulse. Dual TX inputs allow the flash to be synchronized with the RF power system to prevent excessive current draw from the system power supply. The LM8502 also offers LED thermal sensing as a safety procedure for flash and separate indicator LED. The LM8502 has two inputs for Ambient Light Sensing — together with the PWM input they enable Dynamic Backlight Control. The LM8502 may also be used for haptic motor driving instead of flash. When the device is idle, featured Power-save mode and use of an external clock reduce current consumption significantly.