SPV1040 STMicroelectronics, SPV1040 Datasheet
SPV1040
Available stocks
Related parts for SPV1040
SPV1040 Summary of contents
Page 1
... Digital still cameras ■ Toys and portable healthcare Description The SPV1040 device is a low power, low voltage, monolithic step-up converter with an input voltage range from 0 5.5 V, and is capable of maximizing the energy generated by even a single solar cell (or fuel cell), where low input voltage handling capability is extremely important ...
Page 2
... Detailed description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 Soft-start mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.2 Startup mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.3 MPPT mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.4 Constant voltage regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.5 Constant current regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.6 Overcurrent protection (OVC 6.7 Overtemperature protection (OVT 6.8 Shutdown mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.9 Undervoltage lockout (UVLO 6.10 Reverse polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.11 Burst mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.12 Sleep-IN mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 Doc ID 18080 Rev 3 SPV1040 ...
Page 3
... SPV1040 1 Block diagram Figure 1. Block diagram Figure 2. Simplified application circuit For setting up the application and simulating the related test results please go to www.st.com/edesignstudio L Lx VOUT XSHUT ICTRL_PLUS GND ICTRL_MINUS MPP-SET VCTRL IN Doc ID 18080 Rev 3 Block diagram ...
Page 4
... Non-inverting input of constant current control loop. It cannot be left I floating. Inverting input of constant current control loop cannot be left floating. Non-inverting input of constant voltage control loop cannot be left floating. O Booster output voltage. MPP-SET 1 GND ICTRL_PLUS 2 ICTRL_MINUS VOUT Doc ID 18080 Rev 3 SPV1040 Description XSHUT VCTRL AM02613v1 ...
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 Table 4. TSSOP8 thermal data Symbol R Thermal resistance, junction-to-ambient ...
Page 6
... XSHUT increasing XSHUT decreasing Doc ID 18080 Rev 3 = -40 °C to 125 °C, J Min Typ 0.4 0.45 0.50 =2V, V =3.3V, 60 OUT =2V, CTRL 0.7 = 1.5V 1 OUT 0.27 0.34 0.14 0.24 = 1.5V 1.7 1.8 MPP-SET 2 1.5 1.65 70 100 increasing 1.2 1.25 CTRL 40 50 0.27 0.34 0.14 0.24 SPV1040 Max Unit V μA 80 μA 5 μ mΩ 120 mΩ 140 2 V (1) 5 1.8 A 130 kHz 1 ...
Page 7
... SPV1040 Table 5. Electrical characteristics (continued) Symbol Thermal shutdown Overtemperature threshold for turn OFF T shutdown Overtemperature threshold for turn order to increase the Vout as much as possible Schottky diode must be placed between the Lx and Vout pins, as shown in 2. Given ≤ ...
Page 8
... Efficiency vs output voltage 3 PV Cells - 8/15 Figure MPP X Figure µH X Figure µH X Doc ID 18080 Rev 3 SPV1040 Efficiency vs output voltage 5 PV Cells - MPP = 22 µH Efficiency vs output voltage 2 PV Cells - µ Efficiency vs output voltage 3 PV Cells - µ ...
Page 9
... SPV1040 Figure 10. Efficiency vs output voltage 4 PV Cells - Figure 12. V and I waveforms - For setting up the application and simulating the related test results please go to www.st.com/edesignstudio Figure 11. Efficiency vs output voltage µH X Figure 13. V Doc ID 18080 Rev 3 Typical characteristics Cells - ...
Page 10
... MPPT mode Once the device has exited Startup mode, the SPV1040 enters MPPT mode to search for the maximum power point. The Perturb & Observe algorithm is based on monitoring either the voltage or the current supplied by the DC power source unit so that the PWM signal duty cycle is increased or decreased step by step according to the input power trend ...
Page 11
... ON-OFF switching. 6.10 Reverse polarity In order to avoid damage to the device and battery discharge when the solar panel connection is reverse-inserted, a dedicated protection circuit has been implemented. In such condition, the SPV1040 stays OFF until the panel is inserted correctly. Doc ID 18080 Rev 3 Detailed description 11/15 ...
Page 12
... Sleep-IN mode Once Sleep-IN mode has been entered, no current is provided to the load. The device exits this mode once the cause which forced it into this state is no longer present. 12/15 over 2 PWM cycles, …, Doc ID 18080 Rev 3 SPV1040 over 16 PWM cycles) prior to ON ...
Page 13
... SPV1040 7 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. ® ECOPACK trademark. Table 6. TSSOP8 package mechanical data ...
Page 14
... Revision history 8 Revision history Table 7. Document revision history Date 08-Oct-2010 06-Apr-2011 04-Oct-2011 14/15 Revision 1 Initial release Updated coverpage, DFN8 information deleted, 2 and Chapter 6 – Updated Figure 1, 3 – Minor text changes Doc ID 18080 Rev 3 Changes Chapter Figure 2, Table 2 and Table 5 SPV1040 3, Chapter 4 ...
Page 15
... 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. ...