Datasheet

www.ti.com
Absolute Maximum Ratings
(1) (2)
Dissipation Ratings
Recommended Operating Conditions
UCC28C4x-EP
BiCMOS LOW-POWER CURRENT-MODE PWM CONTROLLERS
SGLS352B – DECEMBER 2006 – REVISED MAY 2007
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
VDD 20 V
Supply voltage
Max I
CC
30 mA
Output current, I
OUT
peak ± 1 A
Output energy, capacitive load 5 µ J
COMP, CS, FB –0.3 6.3
OUT –0.3 20
Voltage rating V
RT/CT –0.3 6.3
VREF 7
Error amplifier output sink current 10 mA
T
J
Operating junction temperature range
(3)
–55 150 ° C
T
stg
Storage temperature range –65 150 ° C
Lead temperature (soldering, 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) All voltages are with respect to ground. Currents are positive into and negative out of the specified terminals.
(3) 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 about enhanced plastic packaging.
θ
ja
T
A
< 25 ° C DERATING FACTOR T
A
= 70 ° C T
A
= 85 ° C T
A
= 125 ° C
PACKAGE
( ° C/W) POWER RATING ABOVE T
A
= 25 ° C POWER RATING POWER RATING POWER RATING
D 176 710 mW 5.68 mW/ ° C 454 mW 369 mW 142 mW
MIN MAX UNIT
V
DD
Input voltage 18 V
V
OUT
Output voltage range 18 V
I
OUT
(1)
Average output current 200 mA
I
OUT(ref
)
(1)
Reference output current –20 mA
T
J
(1)
Operating junction temperature –55 150 ° C
(1) It is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.
3
Submit Documentation Feedback