MAX6946CAWE datasheet(2/24 Pages) MAXIM

Part #	MAX6946CAWE

Description	10-Port, Constant-Current LED Driver and I/O Expander with PWM Intensity Control

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Manufacturer	MAXIM [Maxim Integrated Products]

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10-Port, Constant-Current LED Driver and

I/O Expander with PWM Intensity Control

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = 2.25V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25°C.) (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.

VDD to GND .............................................................-0.3V to +4V

SCL, SDA, AD0, RST, OSC to GND .........................-0.3V to +6V

P0 to P9 to GND .......................................................-0.3V to +8V

DC Current into P0 to P9 ....................................................24mA

DC Current into SDA ...........................................................10mA

RST Sink Current.................................................................10mA

Total GND Current ............................................................280mA

Continuous Power Dissipation (TA = +70°C)

16-Pin TQFN (derate 14.7mW/°C over +70°C) ..........1176mW

16-Bump WLP (derate 13.3mW/°C over +70°C)........1066mW

Operating Temperature Range (TMIN, TMAX) ....-40°C to +125°C

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

Storage Temperature Range .............................-65°C to +150°C

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Supply Voltage

VDD

2.25

3.60

V

Output Load External Supply

Voltage P0–P9

VEXT

7V

Power-On-Reset Voltage

VPOR

VDD rising

1.91

V

16-pin TQFN

128

Power-On-Reset Voltage Hysteresis

PORHYS

16-bump WLP

33

mV

TA = +25°C

1.0

1.3

TA = TMIN to +85°C

1.3

Standby Current Interface Idle

(PWM Disabled, All Ports High

Impedance)

ISTBY

RST at VDD;

fSCL = 0Hz; other digital

inputs at VDD or GND

TA = TMIN to TMAX

1.5

µA

TA = +25°C

17

23

TA = TMIN to +85°C

24

Standby Current in Reset

(PWM Disabled, All Ports High

Impedance)

IRST

RST at GND; fSCL =

400kHz; other digital

inputs at VDD or GND

TA = TMIN to TMAX

25

µA

TA = +25°C

50

60

TA = TMIN to +85°C

62

Supply Current Interface Active

(Reset Run Enabled, PWM

Disabled, All Ports High

Impedance)

IDD

fSCL = 400kHz; other

digital inputs at VDD or

GND

TA = TMIN to TMAX

65

µA

TA = +25°C

1.58

1.8

TA = TMIN to +85°C

1.9

ΔIDD10

One port set to 10mA

constant current; all other

ports' output registers set

to 0x00, 0x01, or 0xFF;

digital inputs at VDD or

GND

TA = TMIN to TMAX

2.0

TA = +25°C

3.2

3.6

TA = TMIN to +85°C

3.8

Delta Supply Current Interface Idle

ΔIDD20

One port set to 20mA

constant current; all other

ports' output registers set

to 0x00, 0x01, or 0xFF;

digital inputs at VDD or

GND

TA = TMIN to TMAX

4.0

mA

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