Ultralow Power Energy Harvester PMUs
with MPPT and Charge Management
Data Sheet
ADP5091/ADP5092
FEATURES
TYPICAL APPLICATION CIRCUIT
Boost regulator with maximum power point tracking (MPPT)
with dynamic sensing or no sensing mode
ADP5091
LLD
TO MCU
REG_D0
REG_D1
VID
REG_OUT
FROM MCU
Hysteresis mode for best ultralight load efficiency
Operating quiescent current of SYS pin (VIN > VCBP ≥VMINOP): 510 nA
Sleeping quiescent current of SYS pin (VCBP <VMINOP): 390 nA
Input voltage operating range: 0.08 V to 3.3 V
Fast cold start from 380 mV (typical) with charge pump
Programmable shutdown point on MINOP pin based on the
input open circuit voltage (OCV)
150 mA regulated output from 1.5 V to 3.6 V
Battery terminal charging threshold (2.2 V to 5.2 V) to
support charging storage elements
HYSTERESIS
REGULATOR
AND LDO
REG_FB
P
PGOOD
SYS
TO MCU
IN
SW
VIN
COLD START
CHARGE PUMP
SYSTEM
LOAD
MPPT
CBP
BAT
REF
RECHARGEABLE
BATTERY OR
SUPERCAP
+
–
MPPT
BOOST
CONTROL REGULATOR
MINOP
CHARGE CONTROL
AND
POWER PATH
MANAGEMENT
SETSD
SETPG
Optional BACK_UP power path management
Radio frequency (RF) transmission conducive to shutting
down the switcher temporarily via microcontroller unit
(MCU) communication
SETHYST
SETBK
TERM
DIS_SW
FROM MCU
BACK_UP
OPTIONAL
PRIMARY
BATTERY
+
–
AGND PGND
APPLICATIONS
Photovoltaic (PV) cell energy harvesting
Thermoelectric generators (TEGs) energy harvesting
Industrial monitoring
Figure 1.
Self powered wireless sensor devices
Portable and wearable devices with energy harvesting
GENERAL DESCRIPTION
The ADP5091/ADP5092 are intelligent, integrated energy
harvesting, ultralow power management unit (PMU) solutions
that convert dc power from PV cells or TEGs. These devices charge
storage elements such as rechargeable Li-Ion batteries, thin film
batteries, super capacitors, or conventional capacitors, and
power up small electronic devices and battery free systems.
As a low light indicator for a microprocessor, the LLD pin of the
ADP5091 is the MINOP comparator output. However, the
REG_GOOD flag of the ADP5092 monitors the REG_OUT
voltage. In addition, the DIS_SW pin can temporarily shut down
the boost regulator and is RF transmission friendly.
The charging control function of the ADP5091/ADP5092 protects
the rechargeable energy storage, which is achieved by monitoring
the battery voltage with the programmable charging termination
voltage and the shutdown discharging voltage. In addition, a
programmable PGOOD flag monitors the SYS voltage.
The ADP5091/ADP5092 provide efficient conversion of the
harvested limited power from a 6 µW to 600 mW range with
submicrowatt operation losses. With the internal cold start circuit,
the regulator can start operating at an input voltage as low as
380 m V. After cold startup, the regulator is functional at an
input voltage range of 0.08 V to 3.3 V. An additional 150 mA
regulated output can be programmed by an external resistor
divider or the VID pin.
An optional primary cell battery can be connected and managed
by an integrated power path management control block that is
programmable to switch the power source from the energy
harvester, rechargeable battery, and primary cell battery.
The MPPT control keeps the input voltage ripple in a fixed range to
maintain stable dc-to-dc boost conversion. The dynamic sensing
mode and no sensing mode, both programming regulation points
of the input voltage, allow extraction of the highest possible energy
from the harvester. A programmable minimum operation
The ADP5091/ADP5092 are available in a 24-lead LFCSP and
are rated for a −40°C to +125°C temperature range.
threshold enables boost shutdown during a low input condition.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rightsof third parties that may result fromits use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks andregisteredtrademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2016–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
5秒后页面跳转
SL74HC10N：高性能三输入与非门解析
AIC1781A 电池充电控制器深度解析
Pickering新高压舌簧继电器亮相汽车测试博览会
采用MCU+MPU双处理器架构实现的创新应用设计探索
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
