5/10

STA508

Table 7.

Notes: 1. The following table explains the VLow, VHigh variation with Ibias

Note 2: See relevant Application Note AN1994

Table 8. LOGIC TRUTH TABLE (see fig. 5)

High logical state voltage VH (pin

PWRDN, TRISTATE) (note 1)

1.7

V

PWRDN

Supply CURRENT from Vcc in

Power Down

PWRDN = 0

3

mA

Output Current pins

FAULT -TH-WARN when

FAULT CONDITIONS

Vpin = 3.3V

1

mA

Supply Current from Vcc in Tri-

state

22

mA

Supply Current from Vcc in

operation

both channel switching)

Input Pulse width = 50% Duty;

Switching Frequency = 384KHz;

No LC filters;

50

mA

Isc (short circuit current limit)

(note 2)

4.5

6

9

A

Undervoltage protection threshold

7

V

Output minimum pulse width

No Load

70

150

ns

VLow min

VHigh max

Unit

2.7

0.7

1.5

V

3.3

0.8

1.7

V

5

0.85

1.85

V

TRI-STATE

INxA

INxB

Q1Q2Q3Q4

OUTPUT

MODE

0

x

x

OFF

OFF

OFF

OFF

Hi-Z

1

0

0

OFF

OFF

ON

ON

DUMP

1

0

1

OFF

ON

ON

OFF

NEGATIVE

1

1

0

ON

OFF

OFF

ON

POSITIVE

1

1

1

ON

ON

OFF

OFF

Not used

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Table 6. ELECTRICAL CHARACTERISTCS (continued)