LTM4644 datasheet(5/34 Pages) LINER

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LTM4650

4650fb

For more information www.linear.com/LTM4650

ELECTRICAL CHARACTERISTICS

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 LTM4650 is tested under pulsed load conditions such that

TJ ≈ TA. The LTM4650E is guaranteed to meet specifications from

0°C to 125°C internal temperature. Specifications over the –40°C to

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

characterization and correlation with statistical process controls. The

LTM4650I is guaranteed over the full –40°C to 125°C internal operating

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.

Note 3: Two outputs are tested separately and the same testing condition

is applied to each output.

Note 4: LTM4650 device is designed to operate from 400kHz to 750kHz.

Note 5: These parameters are tested at wafer sort.

Note 6: See output current derating curves for different VIN, VOUT and TA.

Note 7: Total DC output voltage error includes all errors over temperature:

line and load regulation as well as the tolerance of the integrated top

feedback resistor.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Differential Amplifier

AV Differential

Amplifier

Gain

V/V

RIN

Input Resistance

Measured at DIFFP Input

kΩ

VOS

Input Offset Voltage

VDIFFP = VDIFFOUT = 1.5V, IDIFFOUT = 100µA

PSRR Differential

Amplifier

Power Supply Rejection Ratio

5V < VIN < 15V

ICL

Maximum Output Current

VOUT(MAX)

Maximum Output Voltage

IDIFFOUT = 300µA

INTVCC – 1.4

GBW

Gain Bandwidth Product

MHz

VTEMP

Diode Connected PNP

I = 100µA

0.6

Temperature Coefficient

–2.2

mV/C

The l denotes the specifications which apply over the specified internal

operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), VIN = 12V and VRUN1, VRUN2 at 5V

unless otherwise noted. Per the typical application in Figure 22.

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