Rainbow-electronics MAX6983 Manual do Utilizador descarregar pdf (Página 2)

MAX6983

16-Port, 36V Constant-Current LED Driver with

LED Fault Detection and Watchdog

2 _______________________________________________________________________________________

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 +6V

OUT_ ......................................................................-0.3V to +40V

DIN, CLK, LE, OE, SE ..................................-0.3V to (V+ + 0.3V)

DOUT_ Current .................................................................±10mA

OUT_ Sink Current ..............................................................60mA

Total GND Current ............................................................960mA

Continuous Power Dissipation (T

= +70°C)

24-Pin PDIP (derate 13.3mW/°C over +70°C)............1067mW

24-Pin TSSOP (derate 12.2mW/°C over +70°C) .........975mW

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

ELECTRICAL CHARACTERISTICS

(Typical Operating Circuit, V+ = 3V to 5.5V, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = 5V, T

= +25°C.)

(Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Supply Voltage V+ 3.0 5.5 V

Output Voltage V

OUT

36 V

Standby Current

(Interface Idle, All Output Ports

High Impedance, R

SET

= 360Ω)

All logic inputs at V+ or GND, DOUT_

unloaded

5.7 8 mA

Standby Current

(Interface Running, All Output

Ports High Impedance,

SET

= 360Ω)

CLK

= 25MHz, OE = V+, DIN and LE = V+

or GND, DOUT_ unloaded

6 6.5 mA

Supply Current

(Interface Idle, All Output Ports

Active Low, R

SET

= 360Ω)

All logic inputs at V+ or GND,

DOUT_ unloaded

18 25 mA

Input High Voltage

DIN_, CLK_, LE_, OE_

0.7 x V+ V

Input Low Voltage

DIN_, CLK_, LE_, OE_

0.3 x V+ V

Hysteresis Voltage

DIN_, CLK_, LE_, OE_

∆V

0.8 V

Input Leakage Current

DIN_, CLK_, LE_, OE_

, I

-1 +1 µA

Output High-Voltage DOUT_ V

SOURCE

= 4mA

V +

- 0.5V

Output Low-Voltage V

SINK

= 4mA 0.5 V

Output Current OUT_ I

OUT

V+ = 3V - 5.5V, V

OUT

= 0.8V - 2.5V,

SET

= 360Ω

37 50 61 mA

Output Leakage Current OUT_ I

LEAK

OE = V+ 1 µA

Watchdog Timeout t

0.1 1 2.5 s

1 2 3 4 5 6 7 ... 11 12

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