LTM2894

3

Rev A

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ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply

VBUS

Operating Supply Range (USB Bus Power Input)

l

4.4

5

36

V

IBUSPOFF

VBUS Supply Current Power Off

ON = 0V

l

1

20

µA

IBUS

VBUS Supply Current Power On

Figure 1, VBUS = 5V, IVLO = 0mA

l

5

9

mA

IBUSSPND

VBUS Supply Current Suspend Mode

VBUS = 5V, USB Suspend Timeout

l

1.5

2.0

mA

VBUS2

Operating Supply Range (Isolated Power Input)

l

4.4

5

36

V

IBUS2POFF

VBUS2 Supply Current Power Off

ON2 = 0V

l

1

10

µA

IBUS2

VBUS2 Supply Current Power On

Figure 1, VBUS2 = 5V, IVLO2 = 0mA

l

5

9

mA

IBUS2SPND

VBUS2 Supply Current Suspend Mode

VBUS2 = 5V, USB Suspend Timeout

l

5

9

mA

VLO

VLO Regulated Output Voltage Signal Reference

Figure 1, IVLO = 0mA

l

3.05

3.3

3.55

V

VLO Output Voltage Maximum Current Source

Figure 1

l

10

mA

VLO2

VLO2 Regulated Output Voltage Signal Reference

Figure 1, IVLO2 = 0mA

l

3.05

3.3

3.55

V

VLO2 Output Voltage Maximum Current Source

Figure 1

l

10

mA

USB Input Levels (D1+, D1–, D2+, D2–)

Single-Ended Input High Voltage

l

2.0

V

Single-Ended Input Low Voltage

l

0.8

V

Single-Ended Input Hysteresis

l

200

mV

Differential Input Sensitivity

|(D1+ – D1–)| or |(D2+ – D2–)|

l

0.2

V

Common Mode Voltage Range

(D1+ + D1–)/2 or (D2+ + D2–)/2

l

0.8

2.5

V

Logic Input Levels (ON, ON2)

Logic Input High Voltage

l

2.0

V

Logic Input Low Voltage

l

0.8

V

Logic Input Current

l

±1

µA

Logic Input Hysteresis

200

mV

USB Output Levels (D1+, D1–, D2+, D2–)

Output Low Voltage

RPU = 1.5kΩ to 3.6V, Figure 2

l

0

0.3

V

Output High Voltage

RPD = 15kΩ to 0V

l

2.8

3.6

V

Differential Output Signal Cross-Point Voltage

l

1.3

2.0

V

Terminations

RPU

Bus Pull-Up Resistance on Upstream Facing Port

D2+ or D2– Pull-Up 1.5kΩ to 3.3V

l

1.425

1.575

kΩ

RPD

Bus Pull-Down Resistance on Downstream Facing

Port (D2+ and D2–)

D2+ and D2– Pull-Down to GND2

l

14.25

15.75

kΩ

ZDRV

USB Driver Output Resistance

l

28

44

Ω

USB Transceiver Pad Capacitance to GND

(Note 2)

10

pF

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, VBUS2 = 5V, GND = GND2 = 0V, ON = 3.3V, ON2 = 3.3V