STI9287CA中文资料背光LED驱动数据手册Tollsemi规格书

描述 Description

The STI9287C and STI9287CA are boost converters designed for white LED driver with 30V OVP from a single cell Li-ion battery. The STI9287C and STI9287CA use current mode, fixed frequency architecture to regulate LED strings current, which is set with an external current sense resistor. Its low 200mV for STI9287C, 250mV for STI9287CA typical feedback voltage with EN/PWM Pulling High reduces power loss and improves efficiency.The STI9287C and STI9287CA include under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.Optimized operation frequency can meet the requirement of small LC filters value and low operation current with high efficiency. Internal soft start function can reduce the inrush current. SOT23-6 package type provides the best solution for PCB space saving and total BOM cost.

特性 Features

Input Voltage Range: 2.5V to 5.5V
High Efficiency: Up to 90%
1.2MHz Constant Frequency Operation
Integrated 150mΩ Power MOSFET
30V Output Over Voltage Protection
STI9287C: 200mV Typical VFBVoltage
STI9287CA: 250mV Typical VFBVoltage
EN Dimming with wide PWM Frequency Range: 1kHz to 200kHz
UVLO, Thermal Shutdown
Internal Current limit
Minimize the External Component
<1µA Shutdown Current
SOT23-6 Package

应用 Application

Mobile Phone, Smart Phone LED BacklightPAD Display LED BacklightingPortableMediaPlayers