L6728ATR datasheet(6/32 Pages) STMICROELECTRONICS

部件名	L6728ATR

功能描述	High frequency single phase PWM controller with Power Good

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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6 / 32 page

L6728A

Pins description and connection diagrams

6/32

2.2

Thermal data

Table 3.

Thermal data

9

VSEN

Regulated voltage sense pin for OVP and UVP protections and PGOOD.

Connect to the output regulated voltage, or to the output resistor divider if

the regulated voltage is higher than the reference.

10

PGOOD

Open drain output set free after SS has finished and pulled low when VSEN

is outside the relative window. Pull up to a voltage equal or lower than VCC.

If not used it can be left floating.

Table 2.

Pin description (continued)

Pin #

Name

Function

Symbol

Parameter

Value

Unit

RTH(JA)

Thermal resistance junction to ambient

(Device soldered on 2s2p, 67 mm x 69 mm board)

45

°C/W

RTH(JC)

Thermal resistance junction to case

5

°C/W

TMAX

Maximum junction temperature

150

°C

TSTG

Storage temperature range

-40 to 150

°C

TJ

Junction temperature range

-40 to 125

°C

PTOT

Maximum power dissipation at TA = 25 °C

2.25

W

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STMicroelectronics	L6728AHTR	1Mb / 33P	High frequency single phase PWM controller with Power Good

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