STR3A151 datasheet(8/14 Pages) ALLEGRO

8 / 14 page

SANKEN ELECTRIC CO., LTD.

STR3A150-DS

July 20, 2012

PWM Off-Line Switching Regulator ICs

STR3A151, STR3A152, STR3A153,

STR3A154, STR3A155

0.1

0.01

Transient Thermal Resistance Curve

Time (s)

10–6

10–5

10–4

10–3

10–2

10–1

Ambient Temperature, TA (°C)

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

PD1 = 1.76 W

MOSFET Temperature versus Power Dissipation Curve

100

125

150

Channel Temperature, Tch (°C)

100

125

100

150

MOSFET Avalanche Energy Derating Coefficient Curve

Drain-to-Source Voltage, VDS (V)

0.1

0.01

100

1000

MOSFET Safe Operating Area Curve

Drain current limited

by on-resistance

Single pulse, TA = 25°C

1 ms

0.1 ms

To use this graph, apply the S.O.A

temperature derating coefficient

taken from the graph at the left

Channel Temperature, Tch (°C)

100

S. O. A. Temperature Derating Coefficient Curve

100

125

150

Characteristic Performance

STR3A153

STR3A151 Datasheet(PDF) 8 Page - Allegro MicroSystems

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