SPV1040 查看數據表（PDF） - STMicroelectronics

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SPV1040

High efficiency solar battery charger with embedded MPPT

STMicroelectronics 

SPV1040

Electrical characteristics

Table 5. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min Typ Max Unit

Thermal shutdown

Tshutdown

Overtemperature

threshold for turn OFF

Temperature increasing

Overtemperature

threshold for turn ON

Temperature decreasing

155

°C

130

°C

1. In order to increase the Vout as much as possible up to 5.2 V a Schottky diode must be placed between the

Lx and Vout pins, as shown in Figure 2.

2.

Given

Tjmax

Tj = Ta +

must be

≤Rt1h2JA5

x PD, and assuming RthJA = 135°C/W,

°C, and that in the worst conditions TA

and that

= 85 °C,

in order to

the power

avoid device destruction

dissipated inside the

device is given by:

PD

≤

T----j---–----T----a-

RthJA

=

295mW

Therefore, if in the worst case the efficiency is assumed to be 90%, then PIN-MAX = 3.3 W and POUT-MAX = 3 W.

Doc ID 18080 Rev 3

7/15

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