MAX6973 查看數據表（PDF） - Maxim Integrated

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MAX6973

16-Output PWM LED Drivers for Message Boards

Maxim Integrated 

16-Output PWM LED Drivers

for Message Boards

ABSOLUTE MAXIMUM RATINGS

(All voltages with respect to GND.)

VDD ........................................................................-0.3V to +4.0V

Y0–Y7, Z0–Z7, MUX0, and MUX1 .........................-0.3V to +8.0V

All Other Pins..............................................-0.3V to (VDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

32-Pin TQFN (derate 34.5mW/°C over +70°C) ..........2857mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°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.

ELECTRICAL CHARACTERISTICS

(VDD = 3.0V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +85°C.) (Note 1)

PARAMETER

SYMBOL

Operating Supply Voltage

VDD

LEDs Anode Voltage

(Y0–Y7, Z0–Z7, MUX0, and MUX1)

VO

CONDITIONS

MIN TYP MAX UNITS

3.0

3.6

V

7

V

fCLKI = 0Hz; CLKO_, DOUT_ loaded 200Ω;

calibration DACs set to 0x01

21 35

Supply Current

IDD

fCLKI = 0Hz; CLKO_, DOUT_ loaded 200Ω;

calibration DACs set to 0xFF

40 55 mA

fCLKI = 32MHz; CLKO_, DOUT_ loaded 200Ω;

calibration DACs set to 0xFF

42 60

Input High Voltage LOADI

VIHC

0.7

x VDD

V

Input Low Voltage LOADI

VILC

0.3

x VDD

V

Differential Input Voltage Range

CLKI_, DIN_

VID

±0.15

±1.20 V

Common-Mode Input Voltage

CLKI_, DIN_

Differential Input High Threshold

Differential Input Low Threshold

Differential Output Voltage

CLKO_, DOUT_

VCM

VDIFFTH

VDIFFTL

VOD Termination 200Ω at receiver _+ and _- inputs

|VID / 2|

2.4

V

8

65 mV

-65 -8

mV

±190

±550 mV

Differential Output Offset

CLKO_, DOUT_

VOS Termination 200Ω at receiver _+ and _- inputs

1.125 1.25 1.375 V

Input Leakage Current

CLKI_, DIN_, LOADI

IIH, IIL

-1

+1

µA

Input Capacitance

CLKI_, DIN_, LOADI

Output Low Voltage LOADO

Output High Voltage LOADO

Output Slew Time LOADO

VOLC

VOHC

ISINK = 5mA

ISOURCE = 5mA

20% to 80%, 80% to 20%, load = 10pF

10

pF

0.05 0.25

V

VDD

VDD

V

- 0.5 - 0.2

3

ns

2 _______________________________________________________________________________________

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