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PDF ADP5090 Data sheet ( Hoja de datos )
| Número de pieza | ADP5090 | |
| Descripción | Ultralow Power Boost Regulator | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
Ultralow Power Boost Regulator with
MPPT and Charge Management
ADP5090
FEATURES
Boost regulator with maximum power point tracking (MPPT)
Hysteretic controller for best ultralight load efficiency
320 nA ultralow quiescent current (CBP ≥ MINOP)
260 nA ultralow quiescent current (CBP < MINOP)
Input voltage operation range from 80 mV to 3.3 V
Cold start from 380 mV (typical) with charge pump
Open circuit voltage (OCV) sensing for MPPT
Programmable MPPT ratio for photovoltaic (PV) or
thermoelectric generator (TEG) energy sources
Programmable shutdown point on MINOP pin
Energy storage management
Programmable voltage monitor (2.2 V to 5.2 V) to support
charging and prevent overcharging or overdischarging
Power path management for an optional backup primary
cell battery connected to the BACK_UP pin
Radio frequency (RF) transmission friendly
Temporary shutdown boost regulator via microcontroller
(MCU) communication
APPLICATIONS
PV cell energy harvesting
TEG energy harvesting
Battery regulator powered by solar panel
Industrial monitoring
Self powered wireless sensor devices
Portable and wearable devices with energy harvesting
GENERAL DESCRIPTION
The ADP5090 is an integrated boost regulator that converts dc
power from PV cells or TEGs. The device charges storage elements
such as rechargeable Li-Ion batteries, thin film batteries, super
capacitors, and conventional capacitors, and powers up small
electronic devices and battery-free systems.
The ADP5090 provides efficient conversion of the harvested
limited power from a 16 µW to 200 mW range with sub-µW
operation losses. With the internal cold-start circuit, the regulator
can start operating at an input voltage as low as 380 mV. After
cold startup, the regulator is functional at an input voltage range
of 80 mV to 3.3 V.
By sensing the input voltage at the VIN pin, the control loop keeps
the input voltage ripple in a fixed range to maintain stable dc-
to-dc boost conversion. The VIN OCV sensing and programmable
regulation points of the input voltage allow extraction of the
highest possible energy from the PV cell or TEG harvester. A
programmable minimum operation threshold (MINOP)
TYPICAL APPLICATION CIRCUIT
PIN ADP5090
SW
VIN
COLD-START
SYS
CHARGE PUMP
MPPT
CBP
MPPT
BOOST
CONTROL REGULATOR
BAT
MINOP
FROM MCU
OPTIONAL
PRIMARY
BATTERY
DIS_SW
BACK_UP
+
–
CHARGE CONTROL
AND
POWER PATH
MANAGEMENT
AGND PGND
PGOOD
REF
SETSD
SETPG
TERM
PSYS
+ RECHARGEABLE
–
BATTERY OR
SUPERCAP
TO MCU
Figure 1.
enables boost shutdown during a low light condition. In addition,
the DIS_SW pin can temporarily shut down the boost regulator
and is RF transmission friendly.
The charging control function of ADP5090 protects rechargeable
energy storage, which is achieved by monitoring the battery
voltage with programmable charging termination voltage and
shutdown discharging voltage. In addition, a programmable
PGOOD flag monitors the SYS voltage.
An optional primary cell battery can be connected and managed
by an integrated power path management control block that
automatically switches the power source from the energy harvester,
rechargeable battery, and primary cell battery.
The ADP5090 is available in a 16-lead, 3 mm × 3 mm LFCSP
and is rated for a −40°C to +125°C junction temperature range.
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
1 page  
ADP5090
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
VIN, MPPT, CBP, MINOP
DIS_SW, TERM, SETPG, SETSD, PGOOD, REF to
AGND
SW, SYS, BAT, BACK_UP to PGND
PGND to GND
Rating
−0.3 V to +3.6 V
−0.3 V to +6.0 V
−2.0 V to +6.0 V
−0.3 V to +0.3 V
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Data Sheet
THERMAL RESISTANCE
θJA is specified for the worst case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 3.
Package Type
16-Lead LFCSP
θJA θJC Unit
53.1 4.55 °C/W
ESD CAUTION
Rev. C | Page 4 of 21
5 Page 
ADP5090
1
VIN
BAT
BACK_UP
2
SYS
CH1 500mV BW CH2 1.00V BW M2.00s
CH3 1.00V BW CH4 1.00V BW
A CH2
Figure 27. Backup Function, VBACK_UP > VBAT
1.90V
Data Sheet
VIN
SYS
1
DIS_SW
3
2
SW
4
CH1 500mV BW CH2 1.00V BW M100ms
CH3 2.00V BW CH4 2.00V BW T 20.20%
A CH3 1.00V
Figure 28. DIS_SW Function Waveform
Rev. C | Page 10 of 21
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet ADP5090.PDF ] | |
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