UC2825A-EP

SGLS305D – JULY 2005 – REVISED SEPTEMBER 2010

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Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1)

UNIT

VIN

Supply voltage

VC, VCC

22 V

IO

Source or sink current, DC

OUTA, OUTB

0.5 A

IO

Source or sink current, pulse (0.5 ms)

OUTA, OUTB

2.2 A

INV, NI, RAMP

–0.3 V to 7 V

Analog inputs

ILIM, SS

–0.3 V to 6 V

Power ground

PGND

±0.2 V

Outputs

OUTA, OUTB limits

PGND –0.3 V to VC +0.3 V

ICLK

Clock output current

CLK/LEB

–5 mA

IO(EA)

Error amplifier output current

EAOUT

5 mA

ISS

Soft-start sink current

SS

20 mA

IOSC

Oscillator charging current

RT

–5 mA

TJ

Operating virtual junction temperature range

–55°C to 150°C

Tstg

Storage temperature(2)

–65°C to 150°C

Lead temperature 1,6 mm (1/16 in) from case for 10 s

–55°C to 150°C

tstg

Storage temperature(2)

–65°C to 150°C

Lead temperature 1,6 mm (1/16 in) from case for 10 s

300°C

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

Long-term high-temperature storage and/or extended use at maximum recommended operating conditions may result in a reduction of

overall device life. See http://www.ti.com/ep_quality for additional information on enhanced plastic packaging.

Table 1. DISSIPATION RATING TABLE – FREE-AIR TEMPERATURE

AIR FLOW

TA ≤ 25°C

DERATING FACTOR

TA = 70°C

TA = 85°C

TA = 125°C

PACKAGE

(CFM)

POWER RATING

ABOVE TA = 25°C

POWER RATING

POWER RATING

POWER RATING

DW

0

1.105 W

9.62 mW/°C

673 mW

528 mW

144 mW

4

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