Datasheet
2
UCC1809-1/-2
UCC2809-1/-2
UCC3809-1/-2
CONNECTION DIAGRAM
Temperature Range Available Packages
UCC1809-X –55°C to +125°C J
UCC2809-X –40°C to +85°C N, D, P, PW
UCC3809-X 0°C to +70°C N, D, P, PW
ELECTRICAL CHARACTERISTICS: Unless otherwise specified, C
VREF
= 0.47 mF, VDD = 12V. T
A
=T
J
.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Supply Section
VDD Clamp I
VDD
= 10mA 16 17.5 19 V
I
VDD
No Load 600 900 µA
I
VDD
Starting (Note 1) 110 µA
I
VDD
Standby UCCx809-1, VDD = Start Threshold - 300mV 110 125 µA
UCCx809-2, VDD = Start Threshold - 300mV 130 170 µA
Undervoltage Lockout Section
Start Threshold (UCCx809-1) 9.4 10.4 V
UVLO Hysteresis (UCCx809-1) 1.65 V
Start Threshold (UCCx809-2) 14.0 15.6 V
UVLO Hysteresis (UCCx809-2) 6.2 V
Voltage Reference Section
Output Voltage I
REF
= 0mA 4.75 5 5.25 V
Line Regulation VDD = 10V to 15V 2 mV
Load Regulation I
REF
= 0mA to 5mA 2 mV
Comparator Section
I
FB
Output Off –100 nA
Comparator Threshold 0.9 0.95 1 V
OUT Propagation Delay (No Load) V
FB
= 0.8V to 1.2V at T
R
= 10ns 50 100 ns
SOIC-8, DIL-8 (Top View)
D, N and J Packages
ABSOLUTE MAXIMUM RATINGS*
VDD...........................................19V
I
VDD
..........................................25mA
I
OUT
(tpw < 1µs and Duty Cycle < 10%)........–0.4A to 0.8A
RT1, RT2, SS ......................–0.3V to REF + 0.3V
I
REF
.........................................–15mA
Storage Temperature ...................–65°C to +150°C
Junction Temperature...................–55°C to +150°C
Lead Temperature (Soldering, 10 sec.) .............+300°C
* Values beyond which damage may occur.
All voltages are with respect to ground unless otherwise stated.
Currents are positive into, negative out of the specified termi
-
nal. Consult Packaging Section of Databook for thermal limita
-
tions and considerations of packages.
UCC 809 –
UVLO OPTION
PACKAGE
TEMPERATURE RANGE
ORDERING INFORMATION
FB
SS
RT1
RT2
REF
VDD
OUT
GND
8
7
6
5
1
2
3
4
TSSOP-8 (Top View)
PW Package
FB
2
1
4
3
7
8
5
6
SS
RT1
RT2
REF
VDD
OUT
GND
MSOP-8 (Top View)
P Package