The ADP1804 is a multiple output power supply including two synchronous
buck regulators, one preboost controller, four low dropout
(LDO) regulators, a high-side driver, and a pyro fuse driver and is
dedicated for the automotive market. The sleep mode and deep
sleep mode are available with various wake-up modes.
Multiple switching and linear voltage regulators supply the microprocessor,
sensor, and interface devices. The switching regulators
operate in default fixed 2MHz switching frequency. The device
can also be configured with the spread spectrum feature. The
switching frequency of preboost is configurable. Four low noise
LDO regulators provide clean voltage for the system. The LDO4
is a high voltage always on LDO with extremely low quiescent
current and low noise that is suitable for the system base load. An
advanced power management scheme is implemented to maintain
high efficiency over a wide range of input voltages (down to 4V).
The power on/off sequence and operation status can be easily
managed by the scheme.
High-side driver and pyro fuse driver manage the power path
for battery charging and loading. The two independent high-side
switch drivers are, by default, targeted to control two sets of
common source metal-oxide semiconductor field effect transistors
(MOSFETs). The devices strong driving capability is suitable for
high current, multiparalleled power devices. The pyro fuse driver
provides redundant power path management to make sure the
system works in a safe state—even in worst case scenarios.
Please see the data sheet for the full description.
APPLICATIONS
- 12V battery pack power system bias
- Electric power steering
- Engine management
- Transmission and active suspension
- Electric vehicle (EV), hybrid electric vehicle (HEV), and inverter
- Advanced driver assistance systems
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). Send your project details, company information and contact by e-mail to CBMS_Doc_Req@analog.com. Additional support is available from your Analog Devices local sales.
