5/8

STA501

Notes: 1. The following table explains the VL, VH variation with Ibias

LOGIC TRUTH TABLE (see fig. 2)

Low level input current

Pin voltage = 0.3V

1

µA

Ibias = 3.3V

35

µA

Low logical state voltage VL (pin

PWRDN, TRISTATE) (note 1)

Ibias = 3.3V

0.8

V

High logical state voltage VH (pin

PWRDN, TRISTATE) (note 1)

Ibias = 3.3V

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

Vcc=30V; Tri-state=0

22

mA

Supply current from Vcc in

operation

(both channel switching)

Input pulse width = 50% Duty;

Switching Frequency = 384Khz;

No LC filters;

50

mA

Overcurrent protection threshold

(short circuit current limit)

3.5

6

8

A

Undervoltage protection threshold

7

V

Output minimum pulse width

No Load

70

150

ns

Ibias

VLmin

VHmax

Unit

2.7

0.7

1.5

V

3.3

0.8

1.7

V

5

0.85

1.85

V

TRI-STATE

INA

INB

Q1

Q2

Q3

Q4

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

ELECTRICAL CHARACTERISTCS (continued)