Rainbow Electronics MAX16054 User Manual

General Description

The MAX16054 is a pushbutton on/off controller with a
single switch debouncer and built-in latch. It accepts a
noisy input from a mechanical switch and produces a
clean latched digital output after a factory-fixed qualifi­cation delay.

The MAX16054 eliminates contact bounce during switch
opening and closing. The state of the output changes
only when triggered by the falling edge of the
debounced switch input; the output remains unchanged
on the rising edge of the input. Robust switch inputs
handle ±25V levels and are ±15kV ESD protected for
use in harsh industrial environments. The MAX16054
features a complementary output, OUT, which is the
inverted state of OUT. An asynchronous CLEAR input
allows an external signal to force the output flip-flop low.
Undervoltage-lockout circuitry ensures that OUT is in the
off state upon power-up. The MAX16054 requires no
external components, and its low supply current makes
it ideal for use in portable equipment.

The MAX16054 operates from a +2.7V to +5.5V single
supply. The MAX16054 is offered in a 6-pin thin SOT23
package and operates over the -40°C to +125°C auto­motive temperature range.

Applications

PDAs

MP3/Video Players

Portable Electronics

Set-Top Boxes

Portable Instrumentation

White Goods

Features

o Robust Inputs Can Handle Power Supplies Up to

±25V

o ±15kV ESD Protection

o Latched Output

o Low 7µA Supply Current

o Operates from 2.7V to 5.5V

o -40°C to +125°C Temperature Range

o Thin SOT23 Package

MAX16054

On/Off Controller with Debounce and

±15kV ESD Protection

________________________________________________________________

Maxim Integrated Products

1

Pin Configuration

Ordering Information

MAX16054

OUT

3V

LDO

μP

EN

OUT

IN

CLEAR

GND

ON/OFF WITH LDO

V

CC

Typical Operating Circuits

19-4128; Rev 0; 5/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

+

Denotes a lead-free package.

T = Tape and reel package. Devices are offered in 2.5k unit
increments.

PART

PIN­PACKAGE

TOP

MARK

MAX16054AZT+T

+AADU

Typical Operating Circuits continued at end of data sheet.

TEMP RANGE

-40°C to +125°C 6 Thin SOT23

TOP VIEW

+

1

IN

GND

MAX16054

2

34

THIN SOT23

6V

5 OUT

CC

OUTCLEAR

MAX16054

On/Off Controller with Debounce and
±15kV ESD Protection

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= +2.7V to +5.5V, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values are at VCC= +5V, TA= +25°C.) (Note 2)

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.

Note 1: As per JEDEC 51 standard, multilayer board (PCB).

Note 2: All devices are 100% production tested at T

A

= +25°C. Specifications over temperature limits are guaranteed by design.

Note 3: OUT is guaranteed to be low for 1.0V ≤ V

CC

≤ V

UVLO

.

V

CC

to GND..............................................................-0.3V to +6V

IN to GND ................................................................-30V to +30V

CLEAR to GND .........................................................-0.3V to +6V

OUT, OUT to GND......................................-0.3V to (V

CC

+ 0.3V)

Short-Circuit Duration

OUT, OUT to GND ...................................................Continuous

Continuous Power Dissipation (T

A

= +70°C)
6-Pin Thin SOT23

(derate 9.1mW/°C at +70°C) (Note 1) ............................727mW

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

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

Storage Temperature Range .............................-60°C to +150°C

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

Operating Voltage Range V

Supply Current I

Debounce Duration t

IN Hysteresis 420 mV

IN Pullup Resistance 32 63 100 kΩ

IN Current I

IN Voltage Range V

Undervoltage-Lockout Threshold V

OUT/OUT Output Voltage

CLEAR Input Current I

CLEAR High to OUT Low
Propagation Delay

ESD CHARACTERISTICS

ESD Protection IN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

CC

DP

V

V

IN

UVLO

V

OL

V

OH

V

CLEAR_IL

V

CLEAR_IH

CLEAR

t

CO

(Note 3) 2.7 5.5 V

VCC = 5V, I
IN not connected

TA = +25°C 20 50 80

TA = -40°C to +125°C 5 50 99

IL

VCC = 5V 2.5IN Threshold

IH

VCC = 2.7V 2.0

VIN = +25V +1.5

VIN = -25V -1.5

IN

VCC falling 1.8 2.4 V

I

= 1.6mA 0.4

SINK

I

SOURCE

VCC = 5V 2.4CLEAR Threshold

VCC = 2.7V 2.0

RL = 10kΩ, CL = 100pF 200 ns

= I

OUT

= 0.4mA VCC - 1.0

= 0,

OUT

IEC 61000-4-2 Air
Discharge

IEC 61000-4-2 Contact
Discharge

Human Body Model ±15

720µA

0.65

-25 +25 V

0.7

-1 +1 µA

±15

±8

ms

V

mA

V

V

kV

MAX16054

On/Off Controller with Debounce and

±15kV ESD Protection

_______________________________________________________________________________________

3

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

DEBOUNCE DELAY PERIOD

vs. TEMPERATURE

MAX16054 toc04

TEMPERATURE (°C)

DEBOUNCE DELAY PERIOD (ms)

1109565 80-10 5 20 35 50-25

42

44

46

48

50

52

54

56

58

60

40

-40 125

VCC = 5V

VCC = 3V

VCC UNDERVOLTAGE LOCKOUT

vs. TEMPERATURE

MAX16054 toc05

TEMPERATURE (°C)

V

CC

UNDERVOLTAGE LOCKOUT (V)

1109580655035205-10-25

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

-40 125

VCC RISING

Pin Description

SUPPLY CURRENT

vs. TEMPERATURE

10

9

8

VCC = 5V

7

6

5

4

VCC = 3V

3

SUPPLY CURRENT (μA)

2

1

0

-40 125
TEMPERATURE (°C)

DEBOUNCE OF CLOSING SWITCH

MAX16054 toc01

VCC = 5V

1109565 80-10 5 20 35 50-25

10ms/div

MAX16054 toc02

10V

IN
10V/div

-10V

OUT
5V/div

0V

OUT
5V/div

0V

6

5

4

3

2

OUTPUT LOGIC LEVEL (V)

1

0

2.0 5.5

OUTPUT LOGIC LEVEL
vs. SUPPLY VOLTAGE

VOH, I

= 0.4mA

SOURCE

VOL, I

SUPPLY VOLTAGE (V)

SINK

MAX16054 toc03

= 1.6mA

5.04.54.03.53.02.5

PIN NAME FUNCTION

1IN

2 GND Ground

3 CLEAR Clear Input. Pull CLEAR high to force OUT low. Connect CLEAR to GND if unused.
4 OUT Active-Low CMOS Output

5 OUT Active-High CMOS Output

6 V

CC

Switch Toggle Input. IN features a -25V to +25V maximum input range and includes an internal 63kΩ
pullup resistor to V

. Connect a pushbutton from IN to GND.

CC

+2.7V to +5.5V Supply Input. In noisy environments, bypass VCC to GND with a 0.1µF or greater
ceramic capacitor.