UCC3583 datasheet(2/10 Pages) TI

2 / 10 page

UCC1583

UCC2583

UCC3583

ABSOLUTE MAXIMUM RATINGS

VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V

IVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA

RAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VDD + 1V

IRAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA

IREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30mA

PCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.2V to 0.2V

IGATE (twp < 1µS and Duty Cycle < 10%) . . . . . . –0.8A to 1.8A

ICOMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5mA to 5mA

ICAO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5mA to 5mA

VSYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.6V to VREF +0.3V

ISYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –05mA to 5mA

INV, SS, ILIM, ISENSE. . . . . . . . . . . . . . –0.3V to VREF + 0.3V

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 the COM terminal unless other-

wise stated. Currents are positive into, negative out of the

specified terminal. Consult Packaging Section of Databook for

thermal limitations and considerations of packages.

CONNECTION DIAGRAMS

DIL-14, SOIC-14 (Top View)

J, N, or D Packages

ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = –55°C to 125°C for

UCC1583, –40°C to 85°C for UCC2583, and 0°C to 70°C for UCC3583; VDD = 12V, RT = 60k, CT = 200pF, TA = TJ.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Ramp Generation and Synchronization

Maximum Input Operating Frequency

For input with 5% to 90% duty cycle (Note 1)

500

kHz

Ramp Frequency, Free Running

100

105

kHz

Ramp Discharge Current

VRAMP = 0.5V

2.0

3.6

Low Threshold Voltage

No min, no max, 0=TYP

High Threshold Voltage

3.75

4.25

Synchronizing Threshold Voltage (On)

(Note 1)

Synchronizing Comparator Hysteresis

Output Duty Cycle

Minimum Duty Cycle

Output D/C = Output PW / Input PW

Maximum Duty Cycle

Output D/C = Output PW / Input PW

100

PLCC-20 (Top View)

Q Package

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