STEVAL-ISV006V1 STMicroelectronics, STEVAL-ISV006V1 Datasheet

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STEVAL-ISV006V1

Manufacturer Part Number
STEVAL-ISV006V1
Description
IC LINEAR
Manufacturer
STMicroelectronics
Datasheets

Specifications of STEVAL-ISV006V1

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-11418
Features
Applications
Description
The SPV1040 is a high efficiency, low power and
low voltage monolithic step-up converter that
operates over a 0.3 V to 5.5 V input voltage range
which allows providing power supply to products
using even down to one photovoltaic cell or fuel
cells where the capability of handling low input
voltages is of utmost importance.
Despite the variation of several conditions over
the day (like irradiation, dirt, temperature, etc.) the
SPV1040 allows to achieve the maximum
efficiency in terms of power harvested from the
cells and transferred to the output thanks to the
embedded MPPT algorithm.
April 2011
0.3 V to 5.5 V operating input voltage
140 mΩ internal synchronous rectifier
120 mΩ internal power active switch
100 kHz fixed PWM frequency
Duty cycle controlled by MPPT algorithm
Output voltage regulation, overcurrent and
overtemperature protection
Input source reverse polarity protection
Built in soft-start
Up to 95% efficiency
3 mm x 4.4 mm TSSOP8 package
Smart phones and GPS systems
Wireless headsets
Small appliances, sensors
Portable media players
Digital still cameras
Toys and portable healthcare
High efficiency solar battery charger with embedded MPPT
Doc ID 18080 Rev 2
It employs an input voltage regulation loop, which
fixes the charging battery voltage, set with a
resistor divider and a maximum output current set
with a current sense resistor according to
charging current constraints.
The SPV1040 guarantees safety of application
devices and of the converter itself stopping the
PWM switching in case either of reached
maximum input current peak threshold set up to
1.8 A or maximum temperature limit set up to 155
°C.
As additional feature the IC build-in an input
source reverse polarity protection which prevents
damaging in case of reverse connection of solar
panel at the input.
Table 1.
SPV1040TTR
Order codes
SPV1040T
Device summary
TSSOP8
Package
TSSOP8
SPV1040
Tape and reel
Packaging
Tube
www.st.com
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STEVAL-ISV006V1 Summary of contents

Page 1

High efficiency solar battery charger with embedded MPPT Features ■ 0 5.5 V operating input voltage ■ 140 mΩ internal synchronous rectifier ■ 120 mΩ internal power active switch ■ 100 kHz fixed PWM frequency ■ Duty cycle ...

Page 2

Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

SPV1040 1 Block diagram Figure 1. Block diagram Figure 2. Simplified application circuit MPP-SET XSHUT 4 GND Doc ID 18080 Rev 2 Block diagram R VOUT s ICTRL_PLUS R 1 ICTRL_MINUS ...

Page 4

Pin description 2 Pin description Table 2. Pin description Pin Name 1 MPP-SET 2 GND 5 XSHUT ICTRL_PLUS 8 ICTRL_MINUS VCTRL 4 VOUT Figure 3. Pin connection (Top view) 4/13 Type Non-inverting input to sense the PV ...

Page 5

SPV1040 3 Maximum ratings 3.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol MPP-SET Analog input GND Ground XSHUT Analog input LX Analog input ICTRL_PLUS Analog input ICTRL_MINUS Analog input VCTRL Analog input VOUT Analog output 3.2 Thermal data ...

Page 6

Electrical characteristics 4 Electrical characteristics VMPP-SET = 0 < 125°C, unless otherwise specified. Table 5. Electrical characteristics Symbol Input source section Low boost voltage V MPP-SET threshold I Quiescent current q I Shut-down current SD Reverse input source ...

Page 7

SPV1040 Table 5. Electrical characteristics (continued) Symbol Thermal shutdown Over temperature threshold for turn OFF T shutdown Over temperature threshold for turn order to increase the Vout as much as possible schottky ...

Page 8

Detailed description 5 Detailed description The SPV1040 is a monolithic, high efficiency, low voltage, self-powered DC/DC converter that operates over 0 5 input voltage range and provides a single output voltage. The SPV1040 provides regulated output ...

Page 9

SPV1040 5.5 Constant current regulation The constant current control loop consists of an op-amp and an external sense resistor that feeds the current sensing circuit with a voltage proportional to the DC output current. This resistor determines the current regulation ...

Page 10

Detailed description Figure 4. MPPT working principle 5.11 Burst mode When the output voltage reaches the battery charge voltage or the MPP-SET voltage drops below 450 mV or the output current reaches the output maximum current limit, the duty- cycle ...

Page 11

SPV1040 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...

Page 12

Revision history 7 Revision history Table 7. Document revision history Date 08-Oct-2010 06-Apr-2011 12/13 Revision 1 Initial release Updated Coverpage, DFN8 information deleted, 2 Chapter 4 and Chapter 5 Doc ID 18080 Rev 2 SPV1040 Changes Chapter 3, ...

Page 13

... SPV1040 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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