DatasheeDatasheett 4.2V to 18V Input 1ch Boost Controller BD9306AFVM General Description Key Specifications BD9306AFVM is a 1-channel DC/DC converter Power Supply Voltage Range: 4.2V to 18V controller. A Step-up DC/DC converter can be Error Amplifier Feed Back Voltage: 1.251.6% configured. In addition, it has a built-in master-slave Oscillating Frequency Range: 100kHz to 800kHz function which improves synchronization. Standby Current: 0A(Typ) Operating Temperature Range: -40C to +85C Features Package W(Typ) x D(Typ) x H(Max) 1ch PWM Controlled DC/DC Converter Controller Built-in Soft Start Function Built-in Master / Slave Function Protection Circuits: Under Voltage Lockout Protection Circuit Thermal Shutdown Circuit Short Protection Circuit of Timer Latch type Applications TV, Power Supply for the TFT-LCD Panels used for LCD TVs, Back Lights DSC, DVC, Printer, DVD ,DVD Recorder, Generally Consumer Equipments etc. MSOP8 2.90mm x 4.00mm x 0.90mm Typical Application Circuit VCC 10000pF 3.9k FB GND VVCCcc COMP 10uF 6 5 8 7 Soft Err Start 47uH 1.25V Vref Timer Latch UVLO 0 - Vcc V Io=30mA TSD Shut Down Shut Down VoVO UT PWM DRV OSC 200k 1k 20uF 100pF 15k ENABLE 2 3 1 4 RT CT ENB GD 20 200pF 10k V CC VCC Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0323AAJ00640-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/20 TSZ2211114001 13.Nov.2015 Rev.001 BD9306AFVM Pin Configuration TOP VIEW Pin Descriptions Pin No Pin Name Function 1 RT External timing resistor pin 2 CT External timing capacitor pin 3 ENB Control pin 4 GD Gate drive output pin 5 VCC Power supply pin 6 GND Ground pin 7 COMP Error amp output pin 8 FB Error amp inversion input pin Block Diagram FB GND Vcc COMP VCC 6 8 7 5 Soft Err Start 1.25V Vref Timer Latch UVLO 0 - Vcc V Io=30mA TSD Shut Down Shut Down PWM DRV OSC ENABLE 2 3 1 4 RT CT ENB GD www.rohm.com TSZ02201-0323AAJ00640-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/20 TSZ2211115001 13.Nov.2015 Rev.001