MAX7315 datasheet(2/26 Pages) MAXIM

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8-Port I/O Expander with LED Intensity

Control, Interrupt, and Hot-Insertion Protection

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ABSOLUTE MAXIMUM RATINGS

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.

Voltage (with respect to GND)

V+ .............................................................................-0.3V to +4V

SCL, SDA, AD0, AD1, AD2, P0–P7 ..........................-0.3V to +6V

INT/O8 .....................................................................-0.3V to +8V

DC Current on P0–P7, INT/O8 ............................................55mA

DC Current on SDA.............................................................10mA

Maximum GND Current ....................................................190mA

Continuous Power Dissipation (TA = +70°C)

16-Pin TSSOP (derate 9.4mW/°C over +70°C) ............754mW

16-Pin QSOP (derate 8.3mW/°C over +70°C)..............666mW

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

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

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

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

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

ELECTRICAL CHARACTERISTICS

(Typical Operating Circuit, V+ = 2V to 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.)

(Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Supply Voltage

V+

3.6

Output Load External Supply

Voltage

VEXT

5.5

TA = +25°C

1.2

2.3

TA = -40°C to +85°C

2.6

Standby Current

(Interface Idle, PWM Disabled)

I+

SCL and SDA at V+; other

digital inputs at V+ or GND;

PWM intensity control disabled

TA = TMIN to TMAX

3.3

µA

TA = +25°C

12.1

TA = -40°C to +85°C

13.5

Supply Current

(Interface Idle, PWM Enabled)

I+

SCL and SDA at V+; other

digital inputs at V+ or GND;

PWM intensity control enabled

TA = TMIN to TMAX

14.4

µA

TA = +25°C

TA = -40°C to +85°C

Supply Current

(Interface Running, PWM

Disabled)

I+

fSCL = 400kHz; other digital

inputs at V+ or GND; PWM

intensity control disabled

TA = TMIN to TMAX

µA

TA = +25°C

110

TA = -40°C to +85°C

117

Supply Current

(Interface Running, PWM

Enabled)

I+

fSCL = 400kHz; other digital

inputs at V+ or GND; PWM

intensity control enabled

TA = TMIN to TMAX

122

µA

Input High Voltage

SDA, SCL, AD0, AD1, AD2,

P0–P7

VIH

0.7

V+

Input Low Voltage

SDA, SCL, AD0, AD1, AD2,

P0–P7

VIL

0.3

V+

Input Leakage Current

SDA, SCL, AD0, AD1, AD2,

P0–P7

IIH, IIL

Input = GND or V+

-0.2

+0.2

µA

Input Capacitance

SDA, SCL, AD0, AD1, AD2,

P0–P7

8pF

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