33984 datasheet(35/38 Pages) FREESCALE

Part #	33984

Description	Dual Intelligent High-current Self-protected Silicon High Side Switch (4.0 mOhm)

PDF	38 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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35 / 38 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

33984

ADDITIONAL DOCUMENTATION

THERMAL ADDENDUM (REV 3.0)

Figure 2. Thermal Test Board

Device on Thermal Test Board

RθJA is the thermal resistance between die junction and

ambient air.

This device is a dual die package. Index m indicates the

die that is heated. Index n refers to the number of the die

where the junction temperature is sensed.

HS1

HS0

VPWR

GND

16-Pin PQFN

0.90 mm Pitch

12.0 mm x 12.0 mm Body

33984 Pin Connections

11 10

Transparent Top View

Material:

Single layer printed circuit board

FR4, 1.6 mm thickness

Cu traces, 0.07 mm thickness

Outline:

80 mm x 100 mm board area,

including edge connector for

thermal testing

Area A:

Cu heat-spreading areas on board

surface

Ambient Conditions:

Natural convection, still air

Table 2. Thermal Resistance Performance

Thermal

Resistance

Area A

(mm2)

1 = Power Chip, 2 = Logic Chip (

°C/W)

m = 1,

n = 1

m = 1, n = 2

m = 2, n = 1

m = 2,

n = 2

RθJAmn

055

300

600

33984 Datasheet(PDF) 35 Page - Freescale Semiconductor, Inc

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