MAXIM MAX9065 Technical data

General Description

The MAX9065 is an ultra-small, low-power, window com­parator ideal for a wide variety of portable electronics
applications such as cell phones, portable media play­ers, and notebooks that have extremely tight board
space and power constraints. It comes in both a 4-bump
UCSP™ package with a 1mm x 1mm footprint (as small
as two 0402 resistors) and a 5-pin SOT23 package.

The MAX9065 features a common-mode input range of

-0.3V to +5.5V independent of supply voltage. The
input current goes to zero when the MAX9065 is pow­ered down (VCC= 0). Additionally, the MAX9065 fea­tures high RF immunity.

The MAX9065 has a push-pull output and consumes
only 1µA (max) supply current. The MAX9065 operates
down to 1.0V over the extended -40°C to +85°C tem­perature range.

Applications

Cell Phones

Portable Media Players

Electronic Toys

Notebook Computers

Portable Medical Devices

Features

o Tiny 1mm x 1mm 4-Bump UCSP

Footprint = Two 0402 Resistors
Also Available in 5-Pin SOT23 Package

o Ultra-Low Power Operating Current

1µA (max)

o -0.3V to +5.5V Input Voltage Range

o 1.0V to 5.5V V

CC

Range

o 3.0V and 4.2V Trigger Points

o -40°C to +85°C Extended Temperature Range

MAX9065

Ultra-Small, Low-Power, Window Comparator

in 4 UCSP and 5 SOT23

________________________________________________________________

Maxim Integrated Products

1

19-4224; Rev 2; 1/11

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.

Pin Configurations

IN

1.0V TO 5.5V

MICRO

CONTROLLER

N

V

CC

V

LOWER

V

UPPER

OUT

V

CC

GND

0.1μF

I/O

V

DD

MAX9065

0.2V
REF

Typical Operating Circuit

Ordering Information

PART PIN-PACKAGE TOP MARK

MAX9065EBS+G45 4 UCSP AGC

MAX9065EUK+ 5 SOT23 AFFL

Note: All devices are specified over the extended -40°C to
+85°C operating temperature range.

+

Denotes a lead-free/RoHS-compliant package.

G45 = Protective die coating.

UCSP is a trademark of Maxim Integrated Products, Inc.

EVALUATION KIT

AVAILABLE

TOP VIEW
(BUMPS ON BOTTOM)

MAX9065

A1

B1

OUT

V

CC

A2

B2

UCSP

IN

GND

TOP VIEW

1 5 OUTVCC

2

GND

34

+

MAX9065

SOT23

INGND

MAX9065

Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23

2 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS

(VCC= 3.3V, TA= -40°C to +85°C. Typical values are at TA= +25°C, unless otherwise noted.) (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.

ABSOLUTE MAXIMUM RATINGS

VCC, IN to GND..........................................…………-0.3V to +6V

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

CC

+ 0.3V)

Output Short-Circuit Current Duration ....................................10s

Input Current into Any Terminal .......................................±20mA

Continuous Power Dissipation

4-Bump UCSP (derate 3.0mW/°C above +70°C)..........238mW

5-Pin SOT23 (derate 3.9mW/°C above +70°C).............312mW

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

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

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

Lead Temperature (SOT23 only, soldering 10s)..............+300°C

Soldering Temperature (reflow) .......................................+260°C

DC CHARACTERISTICS

Upper Threshold Voltage UTV

Lower Threshold Voltage LTV

Input Voltage Range V

Hysteresis V

Resistor String Input Resistance R

Input Shutdown Current I

Output Voltage Low V

Output Voltage High V

AC CHARACTERISTICS

Propagation Delay t

Fall Time t

Rise Time t

POWER SUPPLY

Supply Voltage V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MAX9065EBS+
4 UCSP

MAX9065EUK+
5 SOT23

MAX9065EBS+
4 UCSP

MAX9065EUK+
5 SOT23

IN

HYS

IN_SHDNVCC

OH

PD

CC

(Note 2) ±1.0 %

IN

= 0V, VIN = 5.5V 1 15 nA

I

= 100µA, VCC = 1V, TA = +25°C 0.2

SINK

I

OL

F

R

= 1.2mA, VCC = 3.3V 0.3

SINK

I

= 1.2mA, VCC = 5.5V 0.5

SINK

I

I

I

Overdrive = ±100mV (Notes 3, 4) 25 µs

CL = 10pF 14 ns

CL = 10pF 30 ns

Guaranteed by VOS tests 1 5.5 V

= 25µA, VCC = 1V, TA = +25°C

SOURCE

= 0.3mA, VCC = 3.3V

SOURCE

= 0.75mA, VCC = 5.5V

SOURCE

TA = +25°C 4.158 4.20 4.242

-40°C < T

TA = +25°C 4.04 4.20 4.36

-40°C < T

TA = +25°C 2.94 3.00 3.06

-40°C < T

TA = +25°C 2.88 3.00 3.12

-40°C < T

< +85°C 4.10 4.30

A

< +85°C 3.98 4.42

A

< +85°C 2.92 3.08

A

< +85°C 2.83 3.17

A

-0.3 +5.5 V

5.8 11 17.7 MΩ

V

-

CC

0.2

V

-

CC

0.3

V

-

CC

0.5

V

V

V

V

MAX9065

Ultra-Small, Low-Power, Window Comparator

in 4 UCSP and 5 SOT23

_______________________________________________________________________________________

3

Typical Operating Characteristics

(VCC= 3.3V, TA= -40°C to +85°C. Typical values are at TA= +25°C, unless otherwise noted.)

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 3.3V, TA= -40°C to +85°C. Typical values are at TA= +25°C, unless otherwise noted.) (Note 1)

Note 1: All devices are 100% production tested at T

A

= +25°C. Temperature limits are guaranteed by design.

Note 2: Hysteresis is the input voltage difference between the two switching points.
Note 3: Overdrive is defined as the voltage above or below the average of the switching points.
Note 4: Guaranteed by ATE and/or bench characterization over temperature.

Supply Current I

Power-Supply Rejection Ratio PSRR VCC = 0.9V to 5.5V, TA = +25°C 40 53 dB

Power-Up Time t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CC

ON

VCC = 5.5V 0.7 1.35

VCC = 1.0V, TA = +25°C 0.6 1.0

3ms

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

1200

1000

800

600

400

SUPPLY CURRENT (nA)

200

0

0231 456

TA = +85°C

TA = +25°C

TA = -40°C

SUPPLY VOLTAGE (V)

MAX9065 toc01

vs. OUTPUT TRANSITION FREQUENCY

SUPPLY CURRENT

50

45

40

35

30

25

20

15

SUPPLY CURRENT (µA)

10

5

0

0.1 100

VCC = 1.8V

OUTPUT TRANSITION FREQUENCY (kHz)

VCC = 5V

VCC = 3.3V

101

3.0

2.5

MAX9065 toc02

2.0

1.5

1.0

OUTPUT VOLTAGE LOW (V)

0.5

0

OUTPUT VOLTAGE LOW

vs. SINK CURRENT

VCC = 5V

VCC = 3.3V

VCC = 1.8V

084121620

SINK CURRENT (mA)

µA

MAX9065 toc03

OUTPUT VOLTAGE HIGH

vs. SOURCE CURRENT

3.0

2.5

2.0

1.5

1.0

OUTPUT VOLTAGE HIGH (V)

0.5

0

04268

VCC = 1.8V

SOURCE CURRENT (mA)

VCC = 5V

VCC = 3.3V

MAX9065 toc04

HYSTERESIS VOLTAGE

vs. TEMPERATURE

100

90

80

70

60

50

40

HYSTERESIS (mV)

30

20

10

0

-40 10-15 35 60 85
TEMPERATURE (°C)

VTH = 4.2V

VTH = 3V

4.4

4.2

MAX9065 toc05

4.0

3.8

3.6

3.4

THRESHOLD VOLTAGE (V)

3.2

3.0

2.8

-40 -15 10 35 60 85

THRESHOLD VOLTAGE

vs. TEMPERATURE

VTH = 4.2V

TEMPERATURE (°C)

MAX9065 toc06

VTH = 3V

MAX9065

Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= 3.3V, TA= -40°C to +85°C. Typical values are at TA= +25°C, unless otherwise noted.)

0

5

15

10

20

25

021 3456

PROPAGATION DELAY

vs. SUPPLY VOLTAGE

MAX9065 toc10

SUPPLY VOLTAGE (V)

PROPAGATION DELAY (ms)

VTH = 4.2V

VTH = 3V

VOD = ±200mV

200µs/div

1kHz FREQUENCY RESPONSE

IN
200mV/div

OUT
2V/div

MAX9065 toc11

VCC = 3.3V

4.4V

4V

0V

20µs/div

10kHz FREQUENCY RESPONSE

IN
200mV/div

OUT
2V/div

MAX9065 toc12

VCC = 3.3V

4.4V

4V

0V

1ms/div

OUTPUT RESPONSE TO SUPPLY

VOLTAGE TRANSIENT

V

CC

200mV/div

OUT
2V/div

OUT
2V/div

OUT
2V/div

MAX9065 toc13

VIN = VTH + 50mV

VIN = VTH + 150mV

VIN = VTH + 300mV

3.2V

3V

0V

0V

0V

1ms/div

POWER-UP/POWER-DOWN RESPONSE

V

CC

2V/div

OUT
2V/div

MAX9065 toc14

VIN = 4.3V
V

CC

= 3.3V

0V

0V

POWER-SUPPLY REJECTION

FOR NO FALSE TRIGGERING

MAX9065 toc15

FREQUENCY (Hz)

TRIP POINT (V)

100k10k1k100

4.08

4.10

4.12

4.14

4.16

4.18

4.20

4.22

4.24

4.26

4.28

4.30

4.32

4.34

4.06
10 1M

UPPER TRIP POINT

LOWER TRIP POINT

VCC = 3.3V + 100mV

P-P

2.4

2.8

2.6

3.2

3.0

3.6

3.4

3.8

4.2

4.0

4.4

1.0 2.0 2.5 3.01.5 3.5 4.0 4.5 5.55.0 6.0

THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE

MAX9065 toc07

SUPPLY VOLTAGE (V)

THRESHOLD VOLTAGE (V)

VTH = 4.2V

VTH = 3V

7

11

9

17

15

13

23

21

19

25

-40 10-15 356085

PROPAGATION DELAY

vs. TEMPERATURE

MAX9065 toc08

TEMPERATURE (°C)

PROPAGATION DELAY (µs)

VCC = 5V

VCC = 3.3V

VCC = 1.8V

0

50

100

150

200

250

08010040 6020 120 140 160 180 200

PROPAGATION DELAY
vs. INPUT OVERDRIVE

MAX9065 toc09

INPUT OVERDRIVE (mV)

PROPAGATION DELAY (µs)

VCC = 1.8V

VCC = 3.3V

VCC = 5V

VTH = 4.2V

Detailed Description

The MAX9065 is an extremely small window compara­tor designed for compact, low-current applications, fea­turing a supply current of less than 1µA (max).

Operation

At the heart of the MAX9065 are two comparators, a
resistor-divider with a disconnect switch, a 200mV ref­erence, digital logic circuitry, and an output stage (see
the

Typical Operating Circuit

).

The digital logic circuitry and the output stage together
behave like an AND gate. The gate’s inputs are the out­puts of the two comparators. When either comparator’s
output is low, the output asserts low. When both com­parator’s outputs are high, the output asserts high.

When power is applied to VCC, the n-channel FET at
the bottom of the resistor-divider is turned on. The
resistor-divider provides two voltages, V

UPPER

and

V

LOWER

, for comparison with an internal 0.2V reference

voltage. When the input voltage exceeds 4.2V, V

UPPER

is greater than 0.2V, causing the output to assert low.
When the input voltage falls below 3.0V, V

LOWER

is less

than 0.2V, causing the output also to assert low. With
the input voltage between 3.0V and 4.2V, the output
asserts high, indicating that the input voltage is within
the desired range. Table 1 summarizes the operation of
the MAX9065.

When V

CC

goes to 0V, the n-channel FET is turned off,
eliminating the resistor-divider as a leakage path for
current.

Applications

The MAX9065 is designed specifically to monitor the
voltage on a single lithium battery. Keeping the voltage
on a lithium battery within a tight range is important to
prevent damage to the battery. Specifically, ensuring
that the battery’s voltage neither exceeds 4.2V nor falls
below 3.0V lengthens the lifetime of the battery and
avoids any hazardous battery conditions.

Hysteresis

There are four trip points for hysteresis. See Figure 1.

Power-Supply Considerations

Bypass VCCwith a 0.1µF capacitor to ground.

Chip Information

PROCESS: BiCMOS

MAX9065

Ultra-Small, Low-Power, Window Comparator

in 4 UCSP and 5 SOT23

_______________________________________________________________________________________ 5

Pin Description

Table 1. MAX9065 Operation

PIN

SOT23 UCSP

1B1V

2, 3 B2 GND Ground

4 A2 IN Window Comparator Input

5 A1 OUT Push-Pull Output

NAME FUNCTION

External Supply Input. Bypass
to ground with a 0.1µF bypass

CC

capacitor.

INPUT VOLTAGE OUTPUT

VIN > 4.2V Low

3.0V < V

< 4.2V High

IN

VIN < 3.0V Low

MAX9065

Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23

6 _______________________________________________________________________________________

Figure 1. Hysteresis Trip Points

UTV = 4.2V

HYSTERESIS = 1%

IN

HYSTERESIS = 1%

LTV = 3.0V

OUT

MAX9065

Ultra-Small, Low-Power, Window Comparator

in 4 UCSP and 5 SOT23

_______________________________________________________________________________________ 7

Package Information

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the
package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the
package regardless of RoHS status.

PACKAGE TYPE PACKAGE CODE OUTLINE NO.

LAND

PATTERN NO.

5 SOT23 U5+2

21-0057

90-0174

4 UCSP B4+1

21-0117

Refer to Application Note 1891

MAX9065

Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23

8 _______________________________________________________________________________________

Package Information (continued)

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the
package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the
package regardless of RoHS status.

SOT-23 5L .EPS

MAX9065

Ultra-Small, Low-Power, Window Comparator

in 4 UCSP and 5 SOT23

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________

9

© 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

Revision History

REVISION

NUMBER

0 7/08 Initial release —

1 10/08 Removed future part reference from 5 SOT23 package 1

2 1/11 Added G45 designation 1

REVISION

DATE

DESCRIPTION

PAGES

CHANGED