4

FN9007.7

April 13, 2005

Start to Stop Hysteresis

0.2

0.5

0.8

V

SOFT-START - DIGITAL

COMP Rise Time

Rise from 0.5V to REF -1V

-

2048 clk

-

OSCILLATOR

Gate Output Frequency

Ct = 560pF

90

100

108

kHz

Gate Output Frequency Range

50

-

600

kHz

Temperature Stability

-5-

%

Sync. Frequency Range

1.1 Times the natural switching

frequency.

--

1.2

MHz

Sync Input HIGH

3.5

-

-

V

Sync Input LOW

--

1.5

V

Minimum Sync. Input Pulse Duty Cycle

-

20

-

%

OUTPUT

GATE Low Level

-0.2

0.5

V

4.4

4.9

5.5

V

Rise Time

C load = 1500pF

-

35

-

ns

Fall Time

C load = 1500pF

-

40

-

ns

NOTES:

9. Specifications at -40°C are guaranteed by design, not production tested.

Electrical Specifications

Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Typical Performance Curves

FIGURE 1. FREQUENCY vs TEMPERATURE

FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE

TEMPERATURE (°C)

-40

-20

25

60

85

120

100

80

60

40

20

0

TEMPERATURE (°C)

-40

-20

25

60

85

2.0

1.6

1.2

0.8

0.4

0.2

0

1.8

1.4

1.0

0.6

ISL6401