Datasheet 1ch Small Package High Side Switch ICs 0.75A Current Limit Latch Off High Side Switch ICs BD2220G BD2221G General Description Key Specifications BD2220G and BD2221G are low ON-Resistance Input Voltage Range: 2.7V to 5.5V N-Channel MOSFET high-side power switches, ON-Resistance: 160m(Typ) optimized for Universal Serial Bus (USB) applications. Over-Current Threshold: 0.5A (Min), 1.0A (Max) BD2220G and BD2221G are equipped with the function Standby Current: 0.01A (Typ) of over-current detection, thermal shutdown, Operating Temperature Range: -40C to +85C under-voltage lockout and soft-start. Package W(Typ) D (Typ) (HMax) Features Low ON-Resistance (Typ 160m) N-Channel MOSFET Built-in Over-Current Detection (Output OFF-Latch Operation) Thermal Shutdown Open-Drain Fault Flag Output Flag Output Delay Under-Voltage Lockout Soft-Start Circuit SSOP5 Control Input Logic 2.90mm x 2.80mm x 1.25mm Active-High : BD2220G Active-Low : BD2221G Reverse Current Protection when Power Switch Off Applications USB hub in consumer appliances, PC, PC peripheral equipment, and so forth Typical Application Circuit 5V 5V(T(Tyypp).) 3.3V VIN VOUT CIN IN O UT + GND CL 10k~ 10k to - 100k 100k EN /OC Lineup Over-Current Threshold Control Input Package Orderable Part Number Min Typ Max Logic 0.5A - 1.0A High SSOP5 Reel of 3000 BD2220G-TR 0.5A - 1.0A Low SSOP5 Reel of 3000 BD2221G-TR Product structureSilicon monolithic integrated circuit This product has not designed protection against radioactive rays www.rohm.com TSZ02201-0E3E0H300190-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/22 TSZ2211114001 21.Aug.2014 Rev.003 Datasheet BD2220G BD2221G Block Diagram /OC Over-Current Delay S Q Detection Counter R Under-Voltage Charge Thermal Lockout Pump Shutdown GND EN(/EN) IN OUT Pin Configurations BD2220G BD2221G TOP VIEW TOP VIEW 1 IN OUT 5 1 IN OUT 5 2 GND 2 GND 3 EN /OC 4 3 /EN /OC 4 Pin Description Pin No. Symbol I/O Function 1 IN - Switch input and the supply voltage for the IC. 2 GND - Ground Enable input. 3 EN, /EN I EN: High level input turns on the switch. (BD2220G) /EN: Low level input turns on the switch. (BD2221G) Over-current notification terminal. 4 /OC O Low level output during over-current or over-temperature condition. Open-drain fault flag output. 5 OUT O Switch output www.rohm.com TSZ02201-0E3E0H300190-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/22 TSZ2211115001 21.Aug.2014 Rev.003