LTC7150S datasheet(4/22 Pages) LINER

4 / 22 page

LTC7150S

7150sfa

For more information www.linear.com/LTC7150S

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IMODE/SYNC

MODE/SYNC Current

MODE/SYNC = 0V

µA

VCLKOUT

Clock Output High Voltage

Clock Output Low Voltage

VINTVCC – 0.2 VINTVCC

0.2

PHMODE

PHMODE Threshold

180° (2-Phase)

90° (4-Phase)

120° (3-Phase)

VINTVCC – 0.1

1.0

VINTVCC – 1

0.1

VINOV

VIN Overvoltage Threshold

VIN Rising

VIN Falling

22.5

24.5

21.5

26.5

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the specified operating

junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, unless otherwise noted.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LTC7150S is tested under pulsed load conditions such

that TJ ≈ TA. The LTC7150SE is guaranteed to meet specifications from

0°C to 85°C junction temperature. Specifications over the –40°C to

125°C operating junction temperature range are assured by design,

characterization and correlation with statistical process controls. The

LTC7150SI is guaranteed over the –40°C to 125°C operating junction

temperature range. Note that the maximum ambient temperature

consistent with these specifications is determined by specific operating

conditions in conjunction with board layout, the rated package thermal

impedance and other environmental factors. The junction temperature

(TJ, in °C) is calculated from the ambient temperature (TA, in °C) and

power dissipation (PD, in Watts) according to the formula:

TJ = TA + (PD • θJA),

where

θJA (in °C/W) is the package thermal impedance.

Note 3: The quiescent current in forced continuous mode does not include

switching loss of the power FETs.

Note 4: The LTC7150S is tested in a feedback loop that servos VITH to a

specified voltage and measures the resultant VFB.

Note 5: There is additional switch current due to internal resistor to ground.

LTC7150S 数据表(PDF) 4 Page - Linear Technology

LTC7150S 数据表(HTML) 4 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

数据表下载