2

UCC1580-1,-2,-3,-4

UCC2580-1,-2,-3,-4

UCC3580-1,-2,-3,-4

VDD ...........................................16V

LINE, RAMP ........................ 0.3V to VDD + 1V

DELAY ........................................ 5.3V

OSC1, OSC2, SS, SHTDWN, EAIN ..... 0.3V to REF + 0.3V

PGND .................................. 0.2V to 0.2V

Storage Temperature ................... 65°C to +150°C

Junction Temperature ................... 55°C to +150°C

Lead Temperature (Soldering, 10 sec.) ............. +300°C

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.

ABSOLUTE MAXIMUM RATINGS

CONNECTION DIAGRAMS

DIL-16, SOIC-16 (Top View)

J, N, or D Packages

ORDER INFORMATION

The main gate drive output (OUT1) is controlled by the

pulse width modulator. The second output (OUT2) is in-

tended to activate an auxiliary switch during the off time

of the main switch, except that between each transition

there is deadtime where both switches are off, pro-

grammed by a single external resistor. This design offers

two options for OUT2, normal and inverted. In the -1 and

-2 versions, OUT2 is normal and can be used to drive

PMOS FETs. In the -3 and -4 versions, OUT2 is inverted

and can be used to drive NMOS FETs. In all versions,

both the main and auxiliary switches are held off prior to

startup and when the PWM command goes to zero duty

cycle. During fault conditions, OUT1 is held off while

OUT2 operates at maximum duty cycle with a guaran-

teed off time equal to the sum of the two deadtimes.

Undervoltage lockout monitors supply voltage (VDD), the

precision reference (REF), input line voltage (LINE), and

the shutdown comparator (SHTDWN).

If after any of

these four have sensed a fault condition, recovery to full

operation is initiated with a soft start. VDD thresholds, on

and off, are 15V and 8.5V for the -2 and -4 versions, 9V

and 8.5V for the -1 and -3 versions.

The UCC1580-x is specified for operation over the mili-

tary

temperature

range

of

55°C

to

125°C.

The

UCC2580-x is specified from

40°C to 85°C. The

UCC3580-x is specified from 0°C to 70°C. Package op-

tions include 16-pin surface mount and dual in-line.

DESCRIPTION (cont.)