STEVAL-ISV006V1 STMicroelectronics, STEVAL-ISV006V1 Datasheet - Page 9

• Manufacturer Part Number: STEVAL-ISV006V1
• Description: IC LINEAR
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ISV006V1

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11418

SPV1040
5.5
5.6
5.7
5.8
5.9
5.10
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 set point and must be adequately rated in terms of
power dissipation. It gives the user the capability of fixing the maximum output current in
order to protect the battery.
Over current protection OVC
When the current that flows through the inductor reaches 1.8 A (over-current shutdown
limit), the N-channel power switch is immediately forced OFF and the P-channel
synchronous rectifier is switched ON. Once the over-current condition is expired, that is the
inductor current goes below 1.8 A the N-channel power switch is turned ON back.
Over temperature protection OVT
When the temperature sensed at silicon level reaches 155°C (over-temperature shutdown
limit), the N-channel power switch is immediately forced OFF and the P-channel
synchronous rectifier is switched ON. The device becomes operative again as soon as the
silicon temperature goes below 130°C.
Shut-down mode
The XSHUT pin low drives OFF all the internal circuitry achieving the lowest power
consumption mode.
Under voltage lock-out (UVLO)
In order to prevent batteries from over-discharging, the device turns OFF in case of MPP-
SET voltage lower than 0.24 V (no irradiation). A hysteresis has been implemented to avoid
unpredictable ON-OFF switching.
Reverse polarity
In order to avoid device permanent damages and battery discharge when the solar panel
connection is reversely inserted a dedicated circuit for the purpose has been implemented.
In such a condition the SPV1040 stays OFF until a wrong insertion of panel is detected.
Doc ID 18080 Rev 2
Detailed description
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