Micrel, Inc.

SY89221U

August 2007

6

M9999-082407-C

Absolute Maximum Ratings

(1)

Termination Current

Continuous.......................................................50mA

Surge .............................................................100mA

Input Current

Source or sink current on IN, /IN ...................±50mA

Operating Ratings

(2)

............................................... +3.0V to 3.6V

Package Thermal Resistance

(4)

TQFP

Still-air (

Junction-to-board (

(3)

Lead Temperature (soldering, 20sec.) .................. 260°C

DC Electrical Characteristics

(5)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Positive Supply Voltage Range

2.375

3.0

2.625

3.6

V

Power Supply Current

140

190

mA

Differential Input Resistance

(IN-to-/IN)

90

100

110

Ω

Input Resistance

45

50

55

Ω

Input HIGH Voltage (IN, /IN)

1.2

V

Input LOW Voltage (IN, /IN)

0

V

Input Voltage Swing (IN, /IN)

See Figure 1a; Note 6

0.1

2.5

V

Differential Input Voltage Swing

|IN – /IN|

See Figure 1b

0.2

V

Input Voltage Threshold that

Triggers FSI

30

100

mV

Reference Voltage

V

1.28

V

Notes:

1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not

implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings conditions

for extended periods may affect device reliability.

2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.

3. Due to the limited drive capability use for input of the same package only.

4.

5. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.