3W Primary-Side Transformer H-Bridge Driver

for Isolated Supplies

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

(All voltages referenced to GND, unless otherwise noted.)

8-Pin SO (derate 18.9mW/°C above +70°C)..............1509mW

Operating Temperature Range .........................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

3.0

5.5

V

Supply Current

1.06

3mA

Disable Supply Current

MODE = GND,

CK_RS unconnected

50

µA

External Resistance Range

10

kΩ

0.5

1.0

Driver Total Resistance

0.6

1.2

Ω

Undervoltage Lockout Threshold

0.8

1.9

2.7

V

Undervoltage-Lockout-Threshold

Hysteresis

110

mV

0.8

Logic-Low Level

(MODE, CK_RS)

0.7

V

Logic-High Level

(MODE, CK_RS)

2.0

V

Input Leakage Current

(MODE)

1µA

Internal Pulldown Resistance on

CK_RS

MODE = GND

165

kΩ

Thermal Shutdown

165

°C

Thermal Shutdown Hysteresis

10

°C

Note 1: ST1 and ST2 are not protected against short circuits. Damage to the device may result from a short-circuit fault.