UCC3585M Datasheet, PDF (2/21 Pages) Texas Instruments – LOW-VOLTAGE SYNCHRONOUS BUCK CONTROLLER

UCC2585
UCC3585
SLUS304F − JULY 1999 − REVISED JANUARY 2005
description (continued)
The UCC3585 also includes undervoltage lockout, a logic controlled enable, and softstart functions. The
UCC3585 is offered in the 16-pin surface mount and through-hole packages.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)^†}
Analog pins
Minimum and maximum forced voltage (reference to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6.3 V
Digital pins
Minimum and maximum forced voltage (reference to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6.3 V
Power driver output pins
Maximum forced current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.0 A
Operating junction temperature, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 125°C
Storage temperature, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°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.
} Unless otherwise noted, voltages are reference to ground and currents are positive into, negative out of, the specified terminals. Pulsed is defined
as a less than 10% duty cycle with a maximum duration of 500 ns.
N, D and M PACKAGES
(TOP VIEW)
ENB 1
COMP 2
SS 3
VFB 4
GND 5
N/C 6
ISET 7
CLSET 8
16 CT
15 VIN
14 NDRV
13 PWRGND
12 PDRV
11 ISENSE
10 SD
9 N/C
AVAILABLE OPTIONS
PACKAGED DEVICES
TA
DIL (N)
SOIC (D)
QSOP (M)
−40°C to 85°C
UCC2585N
UCC2585D
UCC2585M
0°C to 85°C
UCC3585N
UCC3585D
UCC3585M
The M and D packages are available taped and reeled. Add an R suffix to the device
type (e.g., UCC3585DR).
PACKAGE
N
D
M
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
1.1 W
830 mW
580 mW
DERATING FACTOR
ABOVE TA = 25°C
11 mW/°C
8.3 mW/°C
5.8 mW/°C
TA = 70°C
POWER RATING
610 mW
450 mW
320 mW
TA = 85°C
POWER RATING
440 mW
330 mW
230 mW
2
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