Power Management ICs for Automotive Body Control
Regulator with
Voltage Detector and Watchdog Timer
No.10039EAT10
BD3021HFP-M
●Description
BD3021HFP-M is a regulator IC with integrated WDT (Watch Dog Timer), high output voltage accuracy ±2.0% and 80µA
(Typ.) low circuit current consumption. BD3021HFP-M supports usage of low ESR ceramic capacitor for output stability.
BD3021HFP-M can be a stable power supply for any applications while detecting malfunction of microcontrollers.
●Features
1) WDT Can be Switched ON/OFF by Using INH Pin
2) Low Circuit Current: 80µA(Typ.)
3) Output Circuit: Pch DMOS
4) High Output Voltage Accuracy: 5V±2%
5) Supports Low ESR Ceramic Capacitor
6) Vcc Max Voltage: 50V
7) Integrated Over Current Protection and Thermal Shut Down
8) HRP7 packaging
●Applications
Any application using a microcontroller or a DSP such as automotive (body control), display, server, DVD, phone, etc…
●Absolute maximum ratings (Ta=25℃)
Parameter
Supply Voltage
Symbol
Ratings
Unit
*1
Vcc
VINH
VOUT
VRESET
VCLK
VCT
-0.3 ~ +50
-0.3 ~ +15
-0.3 ~ +15
-0.3 ~ +15
-0.3 ~ +15
-0.3 ~ +15
1.6
V
V
INH pin voltage
Regulator output pin voltage
Reset output pin voltage
Watchdog input pin voltage
Reset delay setting pin voltage
Power dissipation
V
V
V
V
*2
Pd
W
℃
℃
℃
Operating temperature range
Storage temperature range
Topr
-40 ~ +125
-55 ~ +150
150
Tstg
Maximum junction temperature
Tjmax
*1 Not to exceed Pd.
*2 Reduced by 12.8W / °C over Ta = 25°C, when mounted on glass epoxy board: 70mm×70mm×1.6mm.
●Operating conditions (Ta=-40~125°C)
Parameter
Supply Voltage
Output Current
Symbol
Min
Max
Unit
*3
Vcc
Io
5.6
0
36.0
500
V
mA
*3 For the output voltage, consider the voltage drop (dropout voltage) due to the output current.
NOTE: This product is not designed for protection against radioactive rays.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2010.11 - Rev.A
1/14