Datasheet BV2HD045EFU-C (Rohm)

Datasheet
IP D Series Au tomotive 2ch 45 mΩ High-Side Switch with Variable OCD and OCD Mask Function BV2HD045EFU-C General Description Key Specifications
BV2HD045EFU-C is a 2-ch high-side switch for Power Supply Voltage Operating Range: 6 V to 28 V automotive application. It has built-in over current On Resistance (Tj=25°C): 45 mΩ (Typ) protection function, thermal shutdown protection function, Over Current Limit: 21 A (Min) open load detection function and under voltage lockout Standby Current (Tj=25°C): 0.5 μA (Max) function. It is equipped with diagnostic output function for Active Clamp Tolerance (Tj(START )= 25 °C): 35 mJ 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
Dual TSD®(Note 1) AEC-Q100 Qualified(Note 2) 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 RON = 45 mΩ (Typ) Monolithic Power Management IC with Control Unit HSSOP-C16 (CMOS) and Power MOSFET on a Single Chip Low Voltage Operation (VBB = 4.3 V) (Note 1) This IC has thermal shutdown (Junction temperature detect) and ΔTj Protection (Power-MOS steep temperature rising detect). (Note 2) Grade 1
Applications
Resistive Load, Inductive Load, Capacitive Load
Typical Application Circuit
RST1PU RST2PU

VBB CVBB

RIN1 IN1

RIN2 IN2

OUT1 RST1 ST1

MCU

RL RST2 ST2 BV2HD045EFU-C

DLY

OUT2

SET RL

CDLY

RSET GND

RGND DGND

“Dual TSD®” is a registered trademark of ROHM Co., Ltd. 〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays. www.rohm.com
TSZ02201
1
-0G5G1G400030-1-2
© 2019 ROHM Co., Ltd. All rights reserved. /34 TSZ22111 • 14 • 001
18.Mar.2019 Rev.001
Document Outline General Description Features Applications Key Specifications Package Typical Application Circuit Table of Contents Pin Configuration Pin Description Block Diagram Definition Absolute Maximum Ratings Thermal Resistance Recommended Operating Conditions Electrical Characteristics Typical Performance Curves Figure 6. Standby Current vs Supply Voltage Figure 7. Standby Current vs Junction Temperature Figure 8. Operating Current vs Supply Voltage Figure 9. Operating Current vs Junction Temperature Figure 10. UVLO Detection Voltage vs Junction Temperature Figure 11. Input Voltage vs Junction Temperature Figure 12. Input Current vs Junction Temperature Figure 13. Output ON Resistance vs Supply Voltage Figure 14. Output ON Resistance vs Junction Temperature Figure 15. Output leak Current vs Junction Temperature Figure 16. Output Slew Rate vs Junction Temperature Figure 17. Output ON, OFF Propagation Delay Time vs Junction Temperature Figure 18. Output Clamp Voltage vs Junction Temperature Figure 19. Diagnostic Output Low Voltage vs Junction Temperature Figure 20. Diagnostic Output ON, OFF Propagation Delay Time vs Junction Temperature Figure 21. Variable Over Current Limit vs Junction Temperature Figure 22. Open Load Detection Voltage vs Junction Temperature Figure 23. Active Clamp Energy vs Output Current Measurement Circuit Timing Chart (Propagation Delay Time) Function Description 1. Protection Function 2. Over Current Protection 2.1 Over Current Limiting Operation in one side channel 2.2 Over Current Detection in Both Outputs 2.3 Over Current Detection by Other Channel while CDLY is Charging (tDLY) 2.4 Setting of Variable Overcurrent Limit Value 2.5 Variable Over Current Limit Mask Time Setting 2.6 The SET Pin and the DLY Pin Setting 3. Open Load Detection 3.1 When the OUT1, OUT2 is pulled down by the load (Normal function) 3.2 If the SW1 is OFF, the output is no longer pulled down by the load 4. Thermal Shutdown, ΔTj Protection Detection 4.1 Thermal Shutdown Protection 4.2 ΔTj Protection 5. Other Protection 5.1 GND Open Protection 5.2 MCU I/O Protection Applications Example I/O Equivalence Circuits Operational Notes 1. Reverse Connection of Power Supply 2. Power Supply Lines 3. Ground Voltage 4. Ground Wiring Pattern 5. Recommended Operating Conditions 6. Inrush Current 7. Testing on Application Boards 8. Inter-pin Short and Mounting Errors 9. Unused Input Pins 10. Ceramic Capacitor 11. Thermal Shutdown Function (TSD) 12. Over Current Protection Function (OCP) 13. Active Clamp Operation 14. Open Power Supply Pin 15. Open GND Pin Ordering Information Marking Diagram Physical Dimension and Packing Information Revision History