6

22kHz TONE SECTION

Tone Frequency

ENT1/2 = H

20.0

22.0

24.0

kHz

Tone Amplitude

ENT1/2 = H

500

680

800

mV

Tone Duty Cycle

ENT1/2 = H

405060

%

Tone Rise or Fall Time

ENT1/2 = H

5

8

14

µs

LINEAR REGULATOR

Drop-out Voltage

Iout = 750mA (Note 8)

-

1.2

-

V

DSQIN PIN

DSQIN pin logic Low

-

-

1.5V

V

DSQIN pin Logic HIGH

3.0

-

-

V

DSQIN pin Input Current

-1-

µA

CURRENT SENSE

Pulse by Pulse Current Limit (max Vin)

150

200

250

mV

Input Bias Current

-

700

-

nA

Over Current Threshold

Static current mode, DCL = H

325

400

500

mV

ERROR AMPLIFIER

Open Loop Voltage Gain

(Note 8)

70

88

-

dB

Gain Bandwidth Product

GBP

(Note 8)

10

-

-

MHz

PWM

Maximum Duty Cycle

90

93

-

%

Minimum Pulse Width

(Note 8)

-

20

-

ns

OSCILLATOR

Oscillator Frequency

200

220

240

kHz

Thermal Shutdown

Temperature Shutdown Threshold

(Note 8)

-

150

-

Temperature Shutdown Hysteresis

(Note 8)

-

20

-

NOTES:

6. Internal Digital Soft-start

IO1 = IO2 = 350mA/750mA.

8. Guaranteed by Design

Electrical Specifications

LLC1 = LLC2 = L, ENT1 = ENT2 = L, DCL = L, DSQIN1 = DSQIN2 = L, Iout = 12mA, unless otherwise noted.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISL6405