AT1743

2-Channel PWM Controller for LCD Display

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

Fax: 886-3-563-0879

9

Reflow Condition (IR/Convection or VPR Reflow)

Reference JEDEC Standard J-STD-020A

Classification Reflow Profiles

Convection or

IR/Convction

VPR

Average Heating Rate(180

°C to peak)

5

°C/second max.

10

°C/second max.

Preheat Temperature(125

±20°C)

120 seconds max.

Temperature maintained above 180

°C

10~150 seconds

Time

within

5

°C

of

actual

Peak

Temperature

10~20 seconds

60 seconds

Peak Temperature Range(Note 1)

219~225

°C or

235~240

°C

219~225

°C or

235~240

°C

Cooling Rate

6

°C /second max.

10

°C/second max.

Time 25

°C to Peak Temperature

6 minutes max.

*1 The maximum peak temperatures for IR and VP reflow are depending on package dimensions.

Package Reflow Conditions

Pkg. Thickness

≥2.5mm

and all bags

Pkg. Thickness <2.5mm

and

Pkg. Volume

≥350 mm3

Pkg. Thickness <2.5mm

and

Pkg. Volume <350 mm3