Datasheet

UCC2813-0, UCC2813-1, UCC2813-2, UCC2813-3, UCC2813-4, UCC2813-5
UCC3813-0, UCC3813-1, UCC3813-2, UCC3813-3, UCC3813-4, UCC3813-5
SLUS161D –APRIL 1999–REVISED JUNE 2013 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Part Number
(1)
Maximum Duty Cycle Reference Voltage Turn-On Threshold Turn-Off Threshold
UCCx813-0 100% 5 V 7.2 V 6.9 V
UCCx813-1 50% 5 V 9.4 V 7.4 V
UCCx813-2 100% 5 V 12.5 V 8.3 V
UCCx813-3 100% 4 V 4.1 V 3.6 V
UCCx813-4 50% 5 V 12.5 V 8.3 V
UCCx813-5 50% 4 V 4.1 V 3.6 V
(1) The x in the part number refers to temperature range difference between UCC2813 and UCC3813.
ABSOLUTE MAXIMUM RATINGS
(1)(2)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Analog inputs (FB, CS, RC, COMP) –3 to the lesser of 6.3 or VCC + 0.3 V
VCC voltage
(3)
12 V
OUT current ±1 A
VCC current 30 mA
OUT energy (capacitive load) 20 µJ
Power dissipation at T
A
< 25°C D package 0.65 W
N package 1 W
Junction temperature –55 150 °C
Storage temperature –65 150 °C
(1) All voltages are with respect to GND. All currents are positive into the specified terminal. Consult Unitrode Integrated Circuits databook
for Information regarding thermal specifications and limitations of packages.
(2) 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.
(3) In normal operation VCC is powered through a current limiting resistor. Absolute maximum of 12 V applies when VCC is driven from a
low impedance source such that ICC does not exceed 30 mA. The resistor must be sized so that the VCC voltage under-operating
conditions is below 12 V but above the tunoff threshold.
Thermal Information
UCCX813-X UCCX813-X UCCX813-X
THERMAL METRIC
(1)
DIL (P) SOIC (D) TSSOP (PW) UNITS
8 PINS 8 PINS 8 PINS
θ
JA
Junction-to-ambient thermal resistance
(2)
50.9 107.5 153.8
θ
JCtop
Junction-to-case (top) thermal resistance
(3)
40.3 49.3 38.4
θ
JB
Junction-to-board thermal resistance
(4)
28.1 48.7 83.8 °C/W
ψ
JT
Junction-to-top characterization parameter
(5)
17.6 6.6 2.2
ψ
JB
Junction-to-board characterization parameter
(6)
28.0 48.0 82.0
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(3) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-
standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(4) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(5) The junction-to-top characterization parameter, ψ
JT
, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θ
JA
, using a procedure described in JESD51-2a (sections 6 and 7).
(6) The junction-to-board characterization parameter, ψ
JB
, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θ
JA
, using a procedure described in JESD51-2a (sections 6 and 7).
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Product Folder Links: UCC2813-0 UCC2813-1 UCC2813-2 UCC2813-3 UCC2813-4 UCC2813-5 UCC3813-0
UCC3813-1 UCC3813-2 UCC3813-3 UCC3813-4 UCC3813-5