MAX3735ESLASHD datasheet(2/18 Pages) MAXIM

2 / 18 page

2.7Gbps, Low-Power SFP Laser Drivers

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = +2.97V to +3.63V, TA = -40°C to +85°C. Typical values at VCC = +3.3V, IBIAS = 20mA, IMOD = 30mA, TA = +25°C, unless

otherwise noted.) (Note 1)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Supply Voltage, VCC..............................................-0.5V to +6.0V

Current into BIAS, OUT+, OUT- ......................-20mA to +150mA

Current into MD.....................................................-5mA to +5mA

Voltage at IN+, IN-, TX_DISABLE, TX_FAULT,

SHUTDOWN ...........................................-0.5V to (VCC + 0.5V)

Voltage at BIAS, PC_MON, BC_MON,

MODSET, APCSET .................................-0.5V to (VCC + 0.5V)

Voltage at OUT+, OUT-.............................+0.5V to (VCC + 1.5V)

Voltage at APCFILT1, APCFILT2 ..............................-0.5V to +3V

Continuous Power Dissipation (TA = +85°C )

24-Lead Thin QFN (derate 20.8mW/°C

above +85°C).............................................................1354mW

24-Lead QFN (derate 20.8mW/°C

above +85°C).............................................................1354mW

Operating Ambient Temperature Range (TA)......-40°C to +85°C

Storage Ambient Temperature Range...............-55°C to +150°C

Die Attach Temperature...................................................+400°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER SUPPLY

Power-Supply Current

ICC

Excludes the laser bias and modulation

currents (Note 2)

I/O SPECIFICATIONS

Differential Input Voltage

VID

VID = (VIN+) - (VIN-), Figure 1

200

2400

mVP-P

Common-Mode Input Voltage

0.6

× VCC

Differential Input Resistance

100

115

Ω

TX_DISABLE Input Pullup

Resistance

RPULL

4.7

7.4

10.0

Ω

VHIGH = VCC

TX_DISABLE Input Current

VLOW = GND, VCC = 3.3V, RPULL = 7.4k

Ω

-450

µA

TX_DISABLE Input High Voltage

VIH

TX_DISABLE Input Low Voltage

VIL

0.8

TX_FAULT Output High Voltage

VOH

IOH = 100µA sourcing (Note 3)

2.4

TX_FAULT Output Low Voltage

VOL

IOL = 1mA sinking (Note 3)

0.4

SHUTDOWN Output High Voltage

VOH

IOH = 100µA sourcing

VCC - 0.4

SHUTDOWN Output Low Voltage

VOL

IOL = 100µA sinking

0.4

BIAS GENERATOR

Bias On-Current Range

IBIAS

Current into BIAS pin

100

Bias Off-Current

IBIASOFF

Current into BIAS pin during TX_FAULT or

TX_DISABLE

100

µA

Bias Overshoot

During SFP module hot plugging

(Notes 4, 5, 11)

External resistor to GND defines the voltage

gain, IBIAS = 1mA, RBC_MON = 69.28k

Ω

10.0

13.5

Bias-Current Monitor Gain

IBC_MON

IBIAS = 100mA, RBC_MON = 693.25

Ω

11.5

13.5

mA/A

MAX3735

-8

Bias-Current Monitor Gain

Stability

1mA

≤ IBIAS ≤ 100mA

(Notes 4, 6)

MAX3735A

-6

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