Micrel, Inc.

SY89855U

August 2007

4

M9999-082907-C

Absolute Maximum Ratings

(1)

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

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

Termination Current

Input Current

Source or Sink Current on IN, /IN.............. ±50mA

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

Operating Ratings

(2)

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

Package Thermal Resistance

(3)

QFN (

Still-Air......................................................35°C/W

500lfpm ....................................................28°C/W

QFN (

Junction-to-Board.....................................16°C/W

DC Electrical Characteristics

(4)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Power Supply Voltage

2.375

3.0

2.5

3.3

2.625

3.6

V

V

Power Supply Current

65

85

mA

Input Resistance

(IN-to-VT)

45

50

55

Ω

Differential Input Resistance

90

100

110

Ω

Input High Voltage

(IN, /IN)

Note 5

V

Input Low Voltage

(IN, /IN)

0

V

Input Voltage Swing

(IN-to-/IN)

See Figure 1a.

0.1

1.7

V

Differential Input Voltage Swing

|

IN - /IN |

See Figure 1b.

0.2

V

Maximum Input Voltage

1.28

V

Output Reference Voltage

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. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.

values are determined for a 4-layer board in still-air, unless otherwise stated.

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