LTM2885 datasheet(8/22 Pages) LINER

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LTM2885

2885fa

For more information www.linear.com/LTM2885

TYPICAL PERFORMANCE CHARACTERISTICS T

A = 25°C, VCC = 5.0V, VL = 3.3V unless

otherwise noted.

VCC Supply Current vs Temperature

at ILOAD = 100mA on VCC2

VCC2

200mV/DIV

ILOAD

50mA/DIV

2885 G14

100µs/DIV

10mV/DIV

2885 G15

200µs/DIV

VCC2 Load Step (100mA)

VCC2 Noise

TEMPERATURE (°C)

–50 –25

100 125

100

125

150

175

200

225

250

275

300

vs Temperature

Available VCC2 Current

2885 G11

R485 = OPEN, C485 = 0pF,

0Mbps, VCM = 0V

R485 = 54Ω, C485 = 500pF,

10Mbps, VCM = –7V

VCC = 5.0V, VCC2 ≥ 4.75V

LOAD CURRENT (mA)

100

150

200

250

4.0

4.1

4.2

4.3

4.4

4.6

4.7

4.8

4.9

5.0

5.1

VCC2 vs Load Current

2885 G12

VCC= 4.5V

VCC= 5.0V

VCC= 5.5V

LOAD CURRENT (mA)

100

150

200

250

0.0

0.4

0.8

1.2

1.6

2.0

2.4

vs Load Current

VCC2 Efﬁciency and Power Loss

2885 G13

VCC = 4.5V

VCC = 5.0V

VCC = 5.5V

EFFICIENCY

POWER LOSS

RS485 ENABLED AND TERMINATED

NO LOAD

VCC = 4.5V

VCC = 5.0V

VCC = 5.5V

TEMPERATURE (°C)

–50 –25

100 125

100

vs Temperature

2885 G10

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