Rainbow-electronics MAX4821 User Manual download pdf (Page 2)

MAX4820/MAX4821

+3.3V/+5V, 8-Channel, Cascadable Relay Drivers

with Serial/Parallel Interface

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +3V to +5.5V, V

COM

= V

, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +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.

(All voltages referenced to GND.)

, COM..............................................................-0.3V to +6.0V

OUT_........................................................-0.3V to (V

COM

+ 0.3V)

CS, SCLK, DIN, SET, RESET, A0, A1, A2, LVL......-0.3V to +6.0V

DOUT..........................................................-0.3V to (V

+ 0.3V)

Continuous OUT_ Current (all outputs turned on) ............150mA

Continuous OUT_ Current (single output turned on) ........300mA

Continuous Power Dissipation (T

= +70°C)

20-Lead Thin QFN

(derate 16.9mW/°C above +70°C).................................1350mW

.........................................................................59.3°C/W

20-Pin TSSOP

(derate 21.7mW/°C above +70°C).................................1739mW

............................................................................46°C/W

Operating Temperature Range ...........................-40°C to +85°C

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

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

Soldering Temperature (10s) ...........................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Voltage V

2.3 5.5 V

= 3.6V 15 50

Quiescent Current I

OUT

_ = 0,

logic inputs = 0 or V

CC V

= 5.5V 20 70

µA

Thermal Shutdown 160 °C

Power-On Reset 0.8 1.5 2.2 V

Power-On Reset Hysteresis 140 mV

DIGITAL INPUTS (SCLK, DIN, CS, LVL, A0, A1, A2, RESET, SET)

= 3.3V 2.0

Input Logic High Voltage V

= 5V 2.4

= 3.3V 0.6

Input Logic Low Voltage V

= 5V 0.8

Input Logic Hysteresis V

HYST

150 mV

Input Leakage Currents I

LEAK

Input voltages = 0 or 5.5V -1.0 0.01 +1.0 µA

Input Capacitance C

5pF

DIGITAL OUTPUT (DOUT)

DOUT Low Voltage V

SINK

= 6mA 0.4 V

DOUT High Voltage V

SOURCE

= 0.5mA V

- 0.5 V

RELAY OUTPUT DRIVERS (OUT1–OUT8)

= 2.7V 70

OUT_ Drive Current

= 4.5V 70

OUT_ On-Resistance R

= 2.7V 2 6 Ω

OUT_ Voltage V

OUT

= 3.0V, I

OUT

_ = 70mA 0.4 V

OUT

Off-Leakage Current I

LEAK

OUT

_ = V

all outputs off -1 +1 µA

Kickback Diode Forward Voltage V

FORW

OUT

_ = 150mA (Note 2) 1.5 V

1 2 3 4 5 6 7 ... 12 13

MAX4820/MAX4821 1

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Rainbow-electronics MAX4821 User Manual Page 2

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