STEVAL-ISV009V1 STMicroelectronics, STEVAL-ISV009V1 Datasheet - Page 16

• Manufacturer Part Number: STEVAL-ISV009V1
• Description: Power Management Modules & Development Tools DUAL STG DC/AC CNVRT DEMO BRD
• Manufacturer: STMicroelectronics
• Series: -r

Specifications of STEVAL-ISV009V1

• Design Resources: STEVAL-ISV009V1 BOM STEVAL-ISV009V1 Schematic
• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Power - Output: -
• Voltage - Output: 36V
• Current - Output: -
• Voltage - Input: -
• Regulator Topology: Boost
• Frequency - Switching: -
• Board Type: Fully Populated
• Utilized Ic / Part: SPV1020
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

OFF state
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OFF state
SPV1020 has a UVLO (under voltage lockout) with hysteresis of 500mV. The two thresholds
are 6.5 V (UVLO_H) for turning on and 6.0 V for turning off (UVLO_L).
At power up, until the supply source provides a voltage lower than the UVLO_H, the
SPV1020 stays in OFF State. In this state, no switching is applied to the switching elements
and all the amount of current provided by PV panel (supply source) is directly transferred to
the output node through the intrinsic diode of the synchronous rectifiers.
When the applied voltage reaches UVLO_H level, SPV1020 goes in Burst Mode. Burst
Mode guarantees a soft start-up and shutdown. When in Burst Mode, SPV1020 update an
internal counter according with the comparison between sampled supply voltage and UVLO
thresholds. SPV1020 goes back in OFF state when the internal counter returns to its default
value. Further details about Burst Mode are available in next session.
Doc ID XXXXX Rev 1
AN3392