STPM066S datasheet(7/67 Pages) STMICROELECTRONICS

tên linh kiện	STPM066S

Giải thích chi tiết về linh kiện	Power management for automotive vision and radar systems

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3.2

Thermal data

3.2.1

Thermal resistance

Table 3. Operation junction temperature

Symbol

Parameter

Board

Value unit

Unit

Rth j-a-2s

Thermal resistance junction-to-ambient

°C/W

Rth j-a-2s2p

2s2p

°C/W

Rth j-a-2s2pv

2s2p+vias

°C/W

Rth j-case

Thermal resistance junction-to-case

2.2

°C/W

3.2.2

Thermal warning and protection

Table 4. Temperature thresholds

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

TSD_TH

Thermal Shutdown

–

160

175

190

°C

TSD_hys

Hysteresis

0.5

°C

TOT_THx (x=1-7)

Over temperature warning

–

140

155

170

°C

TOT_hysx (x=1-7)

Hysteresis

°C

TSD_filter

Thermal Filter time

–

µs

Junction temperature

-40

150

°C

Tstg

Storage temperature

Tstg

150

°C

According to the below formula and considering TSD_TH thermal shutdown minimum threshold at 160 °C, the

maximum suggested power dissipation is:

PDISS_suggested = (TSHD -TAMB) / RTHJ-A

Table 5. Maximum suggested power

Symbol

Tamb 125 ° C

Tamb 105 ° C

Tamb 80 ° C

Rth j-a-2s

0.53 W

0.9 W

1.2 W

Rth j-a-2s2p

1.1 W

1.8 W

2.6 W

Rth j-a-2s2pvias

1.35 W

2.3 W

3.2 W

STPM066S

Thermal data

DS12976 - Rev 2

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