Datasheet

UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45
UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45
SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010
2
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recommended operating conditions
MIN MAX UNIT
Input voltage, V
DD
18 V
Output voltage range, V
OUT
18 V
Average output current, I
OUT
W
200 mA
Reference output current, I
OUT(ref)
W
-- 2 0 mA
Operating junction temperature, T
J
W
-- 4 0 105 °C
¶
It is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
}w
Supply voltage (VDD) 20 V......................................................................
(MAX ICC) 30 mA..................................................................
Output current, I
OUT
peak ±1A...................................................................
Output energy, capacitive load 5 μJ...............................................................
Voltage rating (COMP, CS, FB) --0.3 V to 6.3 V....................................................
(OUT) --0.3 V to 20 V...............................................................
(RT/CT) --0.3 V to 6.3 V............................................................
(VREF) 7V.......................................................................
Error amplifier output sink current 10 mA..........................................................
Total Power Dissipation at T
A
=25°C: D package 50 °C/W..........................................
DGK package 120°C/W......................................
P package 65°C/W..........................................
Operating junction temperature range, T
J
-- 5 5 °C to 150°C...........................................
Storage temperature range T
stg
-- 6 5 °C to 150°C....................................................
Lead Temperature (Soldering, 10 seconds) 300°C..................................................
‡
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.
§
All voltages are with respect to ground. Currents are positive into and negative out of the specified terminals. Consult the Packaging Section of
the Databook for thermal limitations and considerations of the package.
AVAILABLE OPTIONS
T
A
=T
J
MAXIMUM
DUTY CYCLE
UVLO
ON/OFF
SOIC--8
SMALL OUTLINE
(D){
PDIP--8
PLASTIC DIP
(P)
MSOP--8
SMALL OUTLINE
(DGK){
14.5V / 9.0V UCC28C42D UCC28C42P UCC28C42DGK
100%
8.4V / 7.6V UCC28C43D UCC28C43P UCC28C43DGK
4
0
°
C
t
o
1
0
5
°
C
7.0V / 6.6V UCC28C40D UCC28C40P UCC28C40DGK
-- 4 0 °C to 105°C
14.5V / 9.0V UCC28C44D UCC28C44P UCC28C44DGK
50%
8.4V / 7.6V UCC28C45D UCC28C45P UCC28C45DGK
7.0V / 6.6V UCC28C41D UCC28C41P UCC28C41DGK
14.5V / 9.0V UCC38C42D UCC38C42P UCC38C42DGK
100%
8.4V / 7.6V UCC38C43D UCC38C43P UCC38C43DGK
0°Cto70°C
7.0V / 6.6V UCC38C40D UCC38C40P UCC38C40DGK
0
C
t
o
7
0
C
14.5V / 9.0V UCC38C44D UCC38C44P UCC38C44DGK
50%
8.4V / 7.6V UCC38C45D UCC38C45P UCC38C45DGK
7.0V / 6.6V UCC38C41D UCC38C41P UCC38C41DGK
†
D (SOIC--8) and DGK (MSOP--8) packages are available taped and reeled. Add R suffix to device type (e.g.
UCC28C42DR) to order quantities of 2500 devices per reel. Tube quantities are 75 for D packages (SOIC--8) and
80 for DGK package (MSOP--8), and 50 for P package (PDIP-8).