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MAX3967

270Mbps SFP LED Driver

Maxim Integrated 

270Mbps SFP LED Driver

ABSOLUTE MAXIMUM RATINGS

Supply Voltage at VCC, VCCOUT

(VEE, VEEOUT = 0V) ..............................................-0.5V to +7V

Current into OUT+, OUT- ................................-40mA to +160mA

Differential Output Voltage (OUT+ to OUT-) .........-3.3V to +3.3V

Voltage at PB1, PB2, PB3,

IN+, IN-, OUT+, OUT-, TX_DISABLE......-0.5V to (VCC + 0.5V)

Voltage at TCMIN, TCNOM, TC, MODSET, MON ....-0.5V to +2V

Continuous Power Dissipation (TA = +85°C)

24-Lead Thin QFN (derate 20.8mW/C°

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

Operating Junction Temperature Range ...........-40°C to +150°C

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

Storage Temperature Range .............................-50°C to +150°C

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

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.

DC ELECTRICAL CHARACTERISTICS

(Load as specified in Figure 1; VCC = +2.97V to +5.5V (at the VCC pins); VEE, VEEOUT = 0V; TA = -40°C to +85°C, unless otherwise

noted. Temperature coefficients are referenced to TA = +25°C. Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise

noted. Dice are tested at TA = +25°C only.)

PARAMETER

Data Input High Voltage

Data Input Low Voltage

Supply Current

Input Current at IN+ or IN-

Modulation Current

Prebias Voltage

Temperature Coefficient of

Modulation Current

Prebias Resistor

TX_DISABLE Resistance

TX_DISABLE High

TX_DISABLE Low

Monitor Gain

SYMBOL

CONDITIONS

Referenced to VCC, DC-coupled input

Referenced to VCC, DC-coupled input

ICC (Note1)

RMODSET = 698Ω

(Note 2)

RMODSET = 3.0kΩ

(Note 3)

(Note 3)

TA = -40°C

TA = +25°C

TA = +85°C

TA = -40°C

TA = +25°C

TA = +85°C

PB1, PB2, PB3 = (open, open, open)

PB1, PB2, PB3 = (VEE, VEE, open)

PB1, PB2, PB3 = (VEE, VEE, VEE)

Maximum tempco (TC open)

Nominal tempco (TC shorted to TCNOM)

Minimum tempco (TC shorted to TCMIN)

RPREBIAS

Resistance to VEE (Note 4)

VIH

VIL

IMON / IMODSET, VMON < 1.1V,

RMODSET = 1kΩ, TC = TCMIN

MIN

-1.165

-1.810

-50

66.0

0.368

0.575

0.848

66

50

2.0

TYP

30

110

124

139

14

18

22

75

0.400

0.625

0.925

12,000

3600

2500

78

65

MAX

-0.880

-1.475

39

+50

84.5

0.451

0.696

1.026

90

100

0.8

UNITS

V

V

mA

µA

mA

V

ppm/°C

Ω

kΩ

V

V

0.92

1

1.08

A/A

Note 1: RMODSET = 1kΩ. Excludes IOUT+ and IOUT-, TX_DISABLE high or low.

Note 2: TC connected to TCMIN.

Note 3: VCC = +3.3V, VLED = 1.55V, prebias voltage programmed at 0.625V (nominal), TA = +25°C. RMODSET = 1kΩ, (programs

approximately 80mA), TC connected to TCNOM.

Note 4: The TX_DISABLE pin is internally pulled low. The driver is enabled when TX_DISABLE is left open.

2 _______________________________________________________________________________________

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