Datasheet

UC2825A-EP
SGLS305D –JULY 2005–REVISED SEPTEMBER 2010 www.ti.com
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
V
IN
Supply voltage VC, VCC 22 V
I
O
Source or sink current, DC OUTA, OUTB 0.5 A
I
O
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
I
CLK
Clock output current CLK/LEB –5 mA
I
O(EA)
Error amplifier output current EAOUT 5 mA
I
SS
Soft-start sink current SS 20 mA
I
OSC
Oscillator charging current RT –5 mA
T
J
Operating virtual junction temperature range –55°C to 150°C
T
stg
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
t
stg
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 T
A
≤ 25°C DERATING FACTOR T
A
= 70°C T
A
= 85°C T
A
= 125°C
PACKAGE
(CFM) POWER RATING ABOVE T
A
= 25°C POWER RATING POWER RATING POWER RATING
DW 0 1.105 W 9.62 mW/°C 673 mW 528 mW 144 mW
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