BD39001EKV-CE2

Datasheet Power Management IC for Automotive Microcontroller Buck-Boost Switching Regulator + LDO + Step-down Switching Regulator + Reset + Watch Dog Timer BD39000EKV-C General Description Key Specifications BD39000EKV-C is a power management IC with Input voltage range 4.0 V to 30 V buck-boost switching regulator controller (DC / DC1), (Startup voltage needs to be above 4.5V.) secondary step-down switching regulator (DC / DC2), Output voltage LDO, reset and WDT. Buck-Boost DC / DC1 FB Voltage 0.8 V The BD39000EKV-C includes protection circuits, such Secondary DC / DC2 1.23 V as Under voltage, Over voltage, Over current and TSD. Secondary LDO 5.0 V Reference voltage accuracy Features Buck-Boost DC / DC1 FB Voltage 2 % (Note 1) Secondary DC / DC2 2 % AEC-Q100 Qualified Secondary LDO 2 % Automatically controlled buck-boost switching Oscillation frequency 200 to 550 kHz regulator with 40 V rated V , DC / DC2 and LDO CC Max output current input Secondary Buck DC / DC2 900 mA 1.23 V fixed output secondary step-down switching Secondary LDO 600 mA regulator with built-in FET Stand-by Current 0 A (Typ) 5 V fixed output secondary LDO Operating temperature range -40 C to 125 C Configurable Sequence control AEC-Q100 Qualified Over Current protection DC / DC1: Adjustable voltage with external resistors Package W (Typ) D (Typ) H (Max) DC / DC2: Integrated LDO: Integrated HTQFP48V 9.00 mm 9.00 mm 1.00 mm Over voltage / Under voltage detection Reset for LDO and DC / DC2 Window Watchdog Timer HTQFP48V package (Note 1: Grade 1) Applications Microcontroller for Automotive Typical Application Circuit Simplified Circuit1 Simplified Circuit2 VCC VCC EN1 CL EN1 CL VREG OUTH VERG OUTH RT VL VO1 RT VL VO1 V VO1 O1 SS1 VDD SS1 VDD FB1 OUTL FB1 OUTL COMP1 PGND1 COMP1 PGND1 SS2 VS2 SS2 VS2 V O2 VO2 V VO2 O2 FB2 SW2 FB2 SW2 COMP2 PGND2 COMP2 PGND2 V VO3 O3 EN2 VO3 EN2 V O3 V O1 VO1 VS3 CT VS3 CT EN3 EN3 SEQ2 RST2 SEQ2 RST2 SEQ3 RST3 SEQ3 RST3 ENWD RSTWD ENWD RSTWD CLK PG1 CLK PG1 RTW PG2 RTW PG2 SEL UVLO PG3 SEL UVLO PG3 GND GND Buck-Boost Switching Regulator Buck Switching Regulator + Secondary Switching Regulator + Secondary Switching Regulator + Secondary LDO + Secondary LDO Product structure: Silicon monolithic integrated circuit This product is not designed for protection against radioactive rays w ww.rohm.com TSZ02201-0T3T0AM0012310-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/54 TS Z2211114001 02.May.2017 Rev.001 BD39001EKV-C Pin Configuration (TOP VIEW) RTW 37 24 VCC CLK 38 23 CL ENWD 39 22 NC EN3 40 21 OUTH EN2 41 20 NC SEQ3 42 19 VL SEQ2 43 18 NC PG3 44 17 PGND1 PG2 45 16 OUTL PG1 46 15 VDD T3 47 14 FB2 SEL UVLO 48 13 COMP2 Pin Description Pin No. Symbol Function Pin No. Symbol Function 1 VO3 5 V Output 25 EN1 Output ON / OFF (Note 1) 2 N.C. Not connected 26 T4 Test pin 3 VS3 Supply Voltage Input for LDO 27 VREG Internal power supply 4 VS2 Supply Voltage Input for DC / DC2 28 SS1 Soft start time setting for DC / DC1 5 VS2 Supply Voltage Input for DC / DC2 29 COMP1 Error-amp output for DC / DC1 6 N.C. Not connected 30 FB1 Feedback for DC / DC1 7 SW2 DC / DC2 SW pin 31 RT Frequency setting 8 SW2 DC / DC2 SW pin 32 GND Ground 9 N.C. Not connected 33 RST2 Reset Output for DC / DC2 10 PGND2 Power Ground 34 RST3 Reset Output for LDO 11 PGND2 Power Ground 35 RSTWD Reset Output for WDT 12 SS2 Soft start time setting for DC / DC2 36 CT Reset Delay 13 COMP2 Error-amp output for DC / DC2 37 RTW Frequency setting for WDT 14 FB2 Feedback for DC / DC2 38 CLK Clock input 15 VDD N-channel MOSFET drive supply 39 ENWD WDT ON / OFF 16 OUTL N-channel MOSFET drive 40 EN3 Output ON / OFF for LDO 17 PGND1 Power Ground 41 EN2 Output ON / OFF for DC / DC2 18 N.C. Not connected 42 SEQ3 Sequence setting for LDO 19 VL Pch FET gate clamp for DC / DC1 43 SEQ2 Sequence setting for DC / DC2 20 N.C. Not connected 44 PG3 Power good output for LDO 21 OUTH N-channel MOSFET drive 45 PG2 Power good output for DC / DC2 22 N.C. Not connected 46 PG1 Power good output for DC / DC1 Overcurrent detection setting (Note 1) 23 CL 47 T3 Test pin for DC / DC1 24 VCC Supply Voltage Input 48 SEL UVLO Select Pin for VCC UVLO (Note 1) Short with GND w ww.rohm.com TSZ02201-0T3T0AM0012310-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/54 TSZ2211115001 02.May.2017 Rev.001 VO3 1 36 CT NC 2 35 RSTWD VS3 3 34 RST3 VS2 4 33 RST2 VS2 5 32 GND NC 6 31 RT SW2 7 30 FB1 SW2 8 29 COMP1 NC 9 28 SS1 PGND2 10 27 VREG PGND2 11 26 T4 SS2 12 25 EN1