BCT3692BEUT-TR

Ver 1.6 BCT3692B Small Package, High Performance, Asynchronies Boost for 10 WLED Driver Features Description    The BCT3692B is a high frequency, asynchronous boost converter. The internal MOSFET can support up to 10 White LEDs for backlighting and OLED power application, and the internal soft start function can reduce the inrush current. The device operates with 600kHz fixed switching frequency to allow small external components and to simplify possible EMI problems. For the protection, the BCT3692B provides up to 40V OVP to allow inexpensive and small-output capacitors with lower voltage ratings. The LED current is initially set with the external sense resistor RSET. The BCT3692B is available in the tiny package type SOT23-6 packages to save PCB space.      3.0V to 5.5V Input Voltage Range Internal Power N-MOSFET Switch Wide Range for PWM Dimming(10kHz to 100kHz) Minimize the External Component Counts Internal Soft Start Internal Compensation Small SOT-23-6 Packages RoHS Compliant and 100% Lead Free Applications Cellular Phones Digital Cameras PDAs, Smart Phones, MP3 and OLED Portable Instruments Pin Configurations (Top View) SOT-23-6 TOP VIEW 1 GND 2 FB 3 MARKING LX 6 VIN 5 VOUT 4 EN Ordering Information Part BCT3692BEUT-TR Pin-Package SOT23-6 www.broadchip.com Temp-Range -40°C to +85°C Top Mark DDS Supplied as: 3000units/Tape & Reel 1 Ver 1.6 Typical Application Circuit Pin Description NO. NAME I/O DESCRIPTION 1 LX I Switching Pin. 2 GND G Ground Pin. 3 FB I Feedback Pin, Connect the sense resistor from FB to GND. 4 EN I Chip Enable (Active High). 5 VOUT I Output Voltage Pin. 6 VIN I Input Supply . Absolute Maximum Ratings(1) Symbol Description Value (2) Unit VIN Supply Voltages on VIN –0.3 to 6 V VLX Voltage on LX –0.3 to 40 V Voltage on VOUT –0.3 to 36 V Other Pins –0.3 to 6 V PD Continuous Power Dissipation 0.392 θJA Package Thermal Resistance 255 Operating Junction Temperature Range –40 to 150 °C Storage Temperature Range –65 to 150 °C VOUT TJ TSTG (2) W °C/W (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltage values are with respect to network ground terminal. www.broadchip.com 2 Ver 1.6 Function Block Diagram www.broadchip.com 3 Ver 1.6 Electrical Characteristics VIN = 3.7 V, CIN = 4.7uF, COUT=1uF, IOUT=20mA, L=22uH, TA = 25°C, unless otherwise noted) Parameter Input Voltage Supply Current Symbol Test Condition VIN Min Typ 3.0 Max Units 5.5 V IIN FB=0, Switching 1 2 mA ISHDN VEN