BD9G500EFJ-LAE2 ROHM

Datasheet 7 V to 76 V Input, 5 A Integrated High Side MOSFET, Single Buck DC/DC Converter BD9G500EFJ-LA General Description Key Specifications This is the product guarantees long time support in Input Voltage Range: 7 V to 76 V industrial market. Input Absolute Maximum Rating: 80 V BD9G500EFJ-LA is buck DC/DC converter with built-in 85 V (1 ms pulse , 50 % duty or less) low on-resistance High-Side power MOSFET. It is Reference Voltage Accuracy: 1.0 V1.0 % capable of providing current of up to 5 A. Current mode Output Current: 5 A (Max) architecture provides fast transient response and simple High-Side MOSFET ON-Resistance: 100 m (Typ) phase compensation setup. The operating frequency is Shutdown Current: 0 A (Typ) adjustable from 100 kHz to 650 kHz. Operating Temperature Range: -40 C to +125 C Features Package W (Typ) x D (Typ) x H (Max) Long Time Support Product for Industrial Applications. HTSOP-J8 4.9 mm x 6.0 mm x 1.0 mm Wide Input Voltage Range Integrated High-Side MOSFET Current Mode Control Adjustable Frequency Soft Start Function Over Current Protection (OCP) Under Voltage Lockout (UVLO) Thermal Shutdown Protection (TSD) Over Voltage Protection (OVP) HTSOP-J8 package Applications Industrial Equipment Power Supply for FAs Industrial Device Communications Power Systems Typical Application Circuits V IN 8 VIN BOOT 7 C BOOT C BD9G500EFJ-LA IN R 1 L V OUT SW 1 6 EN D 1 C OUT COMP RT GND FB R 2 3 5 2 4 R 3 C COMP R COMP R RT R 4 Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays. www.rohm.com TSZ02201-0F2F0AJ00280-1-2 2020 ROHM Co., Ltd. All rights reserved. 1/36 TSZ22111 14 001 11.Jun.2020 Rev.001 BD9G500EFJ-LA Pin Configuration (TOP VIEW) 1 8 VIN SW GND 2 7 BOOT EXP-PAD 3 6 EN COMP FB 4 5 RT Pin Descriptions Pin No. Pin Name Function Switch pin. This pin is connected to the source of the High-Side MOSFET. 1 SW Connect a schottky barrier diode between this pin and the GND pin. 2 GND Ground pin. Output pin for the gm error amplifier and input to the PWM comparator. 3 COMP Connect phase compensation components to this pin. Output voltage feedback pin. 4 FB See Selection of Components Externally Connected Output Voltage Set Point for how to calculate the resistance of the output voltage setting. The internal oscillator frequency set pin. The internal oscillator is set with a single 5 RT resistor connected between this pin and the GND pin. Frequency range is 100 kHz to 650 kHz. Turning this pin signal low (0.4 V or lower) forces the device to enter the shutdown 6 EN mode. Turning this pin signal high (2.5 V or higher) enables the device. This pin must be terminated. Bootstrap pin. Connect a bootstrap capacitor of 1 F between this pin and the SW 7 BOOT pin.The voltage of this capacitor is the gate drive voltage of the High Side MOSFET. Power supply pin. This pin for the switching regulator and control circuit. 8 VIN Connecting 15 F and 1 F ceramic capacitors are recommended. A backside heat dissipation pad. Connecting to the internal PCB Ground plane by - EXP-PAD using via provides excellent heat dissipation characteristics. www.rohm.com TSZ02201-0F2F0AJ00280-1-2 2020 ROHM Co., Ltd. All rights reserved. 2/36 TSZ22111 15 001 11.Jun.2020 Rev.001