Datasheet IPD Series Automotive 2ch 45 m High-Side Switch with Variable OCD and OCD Mask Function BV2HC045EFU-C General Description Key Specifications BV2HC045EFU-C is a 2-ch high-side switch for Power Supply Voltage Operating Range: 6 V to 19 V automotive application. It has built-in over current On Resistance (Tj=25C): 45 m (Typ) protection function, thermal shutdown protection function, Over Current Limit: 21 A (Min) open load detection function and under voltage lockout Standby Current (Tj=25C): 0.5 A (Max) function. It is equipped with diagnostic output function for Active Clamp Tolerance (Tj = 25 C): 35 mJ (START ) abnormality detection. An external component can arbitrarily set the over current limit and the time to limit to Package W (Typ) x D (Typ) x H (Max) achieve the optimum over current protection for the load. HSSOP-C16 4.90 mm x 6.00 mm x 1.70 mm Features (Note 1) Dual TSD (Note 2) AEC-Q100 Qualified Built-in Variable Over Current Limit Function Built-in Variable Over Current Mask Time Setting Function. Built-in Open Load Detection Function. Built-in Under Voltage Lockout Function (UVLO) Built-in Diagnostic Output Low On-Resistance R = 45 m (Typ) ON Monolithic Power Management IC with Control Unit HSSOP-C16 (CMOS) and Power MOSFET on a Single Chip Low Voltage Operation (V = 4.3 V) BB (Note 1) This IC has thermal shutdown (Junction temperature detect) and Tj Protection (Power-MOS steep temperature rising detect). (Note 2) Grade 1 Applications Resistive Load, Inductive Load, Capacitive Load Typical Application Circuit R R ST1PU ST2PU VBB CVBB R IN1 IN1 RIN2 IN2 OUT1 R ST1 ST1 MCU R L RST2 ST2 BV2HC045EFU-C DLY OUT2 SET R L CDLY RSET GND R D GND GND Dual TSD is a registered trademark of ROHM Co., Ltd. Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays. www.rohm.com TSZ02201-0G5G1G400010-1-2 2019 ROHM Co., Ltd. All rights reserved. 1/34 TSZ22111 14 001 15.Mar.2019 Rev.001 BV2HC045EFU-C Table of Contents General Description ................................................................................................................................................................ 1 Features ................................................................................................................................................................................. 1 Applications ............................................................................................................................................................................ 1 Key Specifications ................................................................................................................................................................... 1 Package ................................................................................................................................................................................. 1 Typical Application Circuit ........................................................................................................................................................ 1 Table of Contents .................................................................................................................................................................... 2 Pin Configuration .................................................................................................................................................................... 3 Pin Description........................................................................................................................................................................ 3 Block Diagram ........................................................................................................................................................................ 3 Definition ................................................................................................................................................................................ 4 Absolute Maximum Ratings ..................................................................................................................................................... 5 Thermal Resistance ................................................................................................................................................................ 6 Recommended Operating Conditions ...................................................................................................................................... 8 Electrical Characteristics ......................................................................................................................................................... 9 Typical Performance Curves .................................................................................................................................................. 11 Measurement Circuit ............................................................................................................................................................. 16 Timing Chart (Propagation Delay Time) ................................................................................................................................. 18 Function Description ............................................................................................................................................................. 19 1. Protection Function ................................................................................................................................................. 19 2. Over Current Protection ........................................................................................................................................... 20 3. Open Load Detection ............................................................................................................................................... 25 4. Thermal Shutdown, Tj Protection Detection ............................................................................................................ 26 5. Other Protection ...................................................................................................................................................... 27 Applications Example ............................................................................................................................................................ 28 I/O Equivalence Circuits ........................................................................................................................................................ 29 Operational Notes ................................................................................................................................................................. 30 Ordering Information ............................................................................................................................................................. 32 Marking Diagram................................................................................................................................................................... 32 Physical Dimension and Packing Information ......................................................................................................................... 33 Revision History .................................................................................................................................................................... 34 www.rohm.com TSZ02201-0G5G1G400010-1-2 2019 ROHM Co., Ltd. All rights reserved. 2/34 TSZ22111 15 001 15.Mar.2019 Rev.001