Application example

AN3319

10/25

DocID18265 Rev 8

4

Application example

Figure 9 and 10 show the demonstration board of a solar battery charger based on

SPV1040 and on a status of charge indication circuit.

Figure 9. STEVAL-ISV006V2 top view

Figure 10. STEVAL-ISV006V2 bottom view

STEVAL-ISV006V2 has been designed to recharge any type of battery (except lithium

compound) which maximum voltage (V

BATT_max

)

≤ 5.2 V and supplied by up to 5 W PV

panels (constrained by V

OC

<V

BATT_max

).

By default STEVAL-ISV006V2 is set as follows:

•

Loaded by a 220 mF super capacitor

•

Supplyed by a 200 mW PV panel (V

OC

= 1.65 V, I

SC

= 150 mA)

•

Maximum output current 1 A

The output trimmer VR

2

allow regulating V

CTRL

across battery.

Maximum output current can be regulated by replacing R

s

current sensing resistor

according to application requirements.

Please refer to

Section 6: external component selection for details about the whole

application set-up.