BD39002EFV-C Datasheet, PDF (1/47 Pages) Rohm – Buck-Boost Switching Regulator Watch Dog Timer

Datasheet
Power Management IC for Automotive Microcontroller
Buck-Boost Switching Regulator + LDO
+ Reset + Watch Dog Timer
BD39002EFV-C
General Description
BD39002EFV-C is a power management IC with
buck-boost switching regulator controller (DC / DC1),
LDO, reset and WDT.
The BD39002EFV-C includes protection circuits, such
as Under voltage, Over voltage, Over current and TSD.
Features
˙ç Automatically controlled buck-boost switching
regulator with 40 V rated VCC, DC / DC and LDO
input
˙ç 5 V fixed output secondary LDO
˙ç Configurable Sequence control
˙ç Over Current protection
DC / DC1: Adjustable voltage with external resistors
LDO: Integrated
˙ç Over voltage / Under voltage detection
˙ç Reset for LDO and WDT
˙ç Window Watchdog Timer
˙ç HTSSOP-B30 package
Key Specifications
˙ Input voltage range
4.0 V to 30 V
(Startup voltage needs to be above 4.5V.)
˙ Output voltage
Buck-Boost DC / DC1 FB Voltage
0.8 V
Secondary LDO
5.0 V
˙ Reference voltage accuracy
Buck-Boost DC / DC1 FB Voltage
±2 %
Secondary LDO
±2 %
˙ Oscillation frequency
200 to 550 kHz
˙ Max output current
Secondary LDO
600 mA
˙ Stand-by Current
0 μA (Typ)
˙ Operating temperature range
-40 °C to 125 °C
˙ AEC-Q100 Qualified
Package
HTSSOP-B30
W (Typ) × D (Typ) × H (Max)
10.00 mm × 7.60 mm × 1.00 mm
Applications
˙ç Microcontroller for Automotive
Typical Application Circuit
Simplified Circuit1
Simplified Circuit2
VCC
EN1
CL
VCC
EN1
CL
VREG
OUTH
VERG
OUTH
VO1
RT
SS1
VL
VDD
VO1
RT
VO1
SS1
VL
VO1
VDD
FB1
OUTL
FB1
OUTL
COMP1
PGND1
COMP1
PGND1
VO1
VS2
VO2
VO1
VO2
VS2
VO2
VO2
EN2
CT
EN2
CT
ENWD
CLK
RTW
SEL_UVLO
GND
RST2#
RSTWD#
PG1
PG2
ENWD
CLK
RTW
SEL_UVLO
GND
RST2#
RSTWD#
PG1
PG2
Buck-Boost Switching Regulator + Secondary LDO
Buck Switching Regulator + Secondary LDO
˓Product structure: Silicon monolithic integrated circuitç ˓This product is not designed for protection against radioactive rays
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© 2014 ROHM Co., Ltd. All rights reserved.
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Oct.29.2014 Rev.001