Datasheet 1ch High Side Switch ICs 1.0A Current Limit High Side Switch ICs BD2041AFJ BD2051AFJ General Description Key Specifications BD2041AFJ and BD2051AFJ are ins gle channel high Input Voltage Range: 2.7V to 5.5V side switch ICs with over-current protection for ON-Resistance: 80m(Typ) Universal Serial Bus (USB) power supply line. These Continuous Current Load: 0.5A ICs have low ON-Resistance N-Channel power Over-Current Threshold: 0.7A (Min), 1.6A (Max) MOSFETs with low supply current, built-in over-current Standby Current: 0.01A (Typ) protection circuit, thermal shutdown circui, t under Output Rise Time: 1.2ms(Typ) voltage lockout and soft-start circuit. Operating Temperature Range: -40C to +85C Package W(Typ) D(Typ) H (Max) Features Built-In Low ON-Resistance Nch MOSFET ( Typ=80m ) Control Input Logic Active-Low: BD2041AFJ Active-High: BD2051AFJ Soft-Start Circuit Over-Current Protection Thermal Shutdown Under Voltage Lockout Function Open Drain Error Flag Output SOP-J8 Reverse-Current Protection when Switch Off 4.90mm x 6.00mm x 1.65mm Flag Output Delay Applications USB Hub in Consumer Appliances, PC, PC Peripheral Equipment, and so forth Typical Application Circuit 5V(Typ) VBUS GND OUT D+ IN OUT + C IN C L - D - IN OUT GND EN( /EN ) /OC Lineup Over-Current Threshold Control Input Package Orderable Part Number Min Typ Max Logic 0.7A 1.0A 1.6A Low SOP-J8 Reel of 2500 BD2041AFJ-E2 0.7A 1.0A 1.6A High SOP-J8 Reel of 2500 BD2051AFJ-E2 Product structureSilicon monolithic integrated circuit This product has not designed protection against radioactive rays www .rohm.com TSZ02201-0E3E0H300290-1-2 2013 ROHM Co., Ltd. All rights reserved. 1/22 TSZ2211114001 21.Aug.2014 Rev.002 BD2041AFJ BD2051AFJ Block Diagram GND OUT Charge IN OUT UVLO OCD pump IN OUT Gate logic EN(/EN) /OC TSD Pin Configurations BD2051AFJ BD2041AFJ TOP VIEW TOP VIEW OUT OUT 1 GND 8 1 GND 8 IN OUT IN OUT 2 7 2 7 IN IN OUT OUT 3 6 3 6 EN /EN 4 /OC 5 4 /OC 5 Pin Description Pin No. Symbol I / O Pin Function 1 GND I Ground. Power supply input. 2, 3 IN I Input terminal to the power switch and power supply input terminal of the internal circuit. When used, connect each pin outside. Enable input. /EN: Power switch on at low level. (BD2041AFJ) 4 EN, /EN I EN: Power switch on at high level. (BD2051AFJ) High level input > 2.0V, low level input < 0.8V. Error flag output. 5 /OC O Low at over current, thermal shutdown. Open drain output. Power switch output. 6, 7, 8 OUT O When used, connect each pin outside. www.rohm.com TSZ02201-0E3E0H300290-1-2 2013 ROHM Co., Ltd. All rights reserved. 2/22 TSZ2211115001 21.Aug.2014 Rev.002