MAXIM MAX9065

19-4224; Rev 1; 10/08
EVALUATION KIT
AVAILABLE
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
Features
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.
♦ Tiny 1mm x 1mm 4-Bump UCSP
Footprint = Two 0402 Resistors
Also Available in 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.
♦ 1.0V to 5.5V VCC Range
Applications
Cell Phones
♦ Ultra-Low Power Operating Current
1µA (max)
♦ -0.3V to +5.5V Input Voltage Range
♦ 3.0V and 4.2V Trigger Points
♦ -40°C to +85°C Extended Temperature Range
Ordering Information
PART
PIN-PACKAGE
TOP MARK
MAX9065EBS+
4 UCSP
AGC
MAX9065EUK+
5 SOT23
AFFL
Note: All devices are specified over the extended -40°C to
+85°C operating temperature range.
Portable Media Players
Electronic Toys
+Denotes a lead-free/RoHS-compliant package.
Notebook Computers
Portable Medical Devices
Pin Configurations
Typical Operating Circuit
1.0V TO 5.5V
0.1μF
TOP VIEW
(BUMPS ON BOTTOM)
TOP VIEW
VCC
IN
MAX9065
+
VCC
OUT
A1
A2
1
B2
B1
VLOWER
MAX9065
VDD
0.2V
REF
GND
GND 3
UCSP
MAX9065
OUT
IN
GND 2
VCC
5
4
SOT23
IN
OUT I/O
MICRO
CONTROLLER
VUPPER
VCC
N
GND
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
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.
1
MAX9065
General Description
MAX9065
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
ABSOLUTE MAXIMUM RATINGS
VCC, IN to GND ..........................................…………-0.3V to +6V
OUT to GND.................................…………-0.3V to (VCC + 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
Bump Temperature (soldering) Reflow............................+235°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(VCC = 3.3V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
4.20
4.242
UNITS
DC CHARACTERISTICS
MAX9065EBS+
4 UCSP
Upper Threshold Voltage
UTV
MAX9065EUK+
5 SOT23
MAX9065EBS+
4 UCSP
Lower Threshold Voltage
LTV
MAX9065EUK+
5 SOT23
Input Voltage Range
Hysteresis
Resistor String Input Resistance
Input Shutdown Current
Output Voltage Low
TA = +25°C
4.158
-40°C < TA < +85°C
4.10
TA = +25°C
4.04
-40°C < TA < +85°C
3.98
TA = +25°C
2.94
-40°C < TA < +85°C
2.92
TA = +25°C
2.88
-40°C < TA < +85°C
2.83
VIN
VHYS
VOL
4.20
4.36
3.00
3.06
3.00
3.12
3.08
VCC = 0, VIN = 5.5V
+5.5
11
1
VOH
V
%
17.7
MΩ
15
nA
ISINK = 100µA, VCC = 1V, TA = +25°C
0.2
ISINK = 1.2mA, VCC = 3.3V
0.3
ISINK = 1.2mA, VCC = 5.5V
Output Voltage High
V
3.17
±1.0
5.8
V
4.42
-0.3
(Note 2)
RIN
IIN_SHDN
4.30
V
0.5
ISOURCE = 25µA, VCC = 1V, TA = +25°C
VCC 0.2
ISOURCE = 0.3mA, VCC = 3.3V
VCC 0.3
ISOURCE = 0.75mA, VCC = 5.5V
VCC 0.5
V
AC CHARACTERISTICS
Propagation Delay
Overdrive = ±100mV (Notes 3, 4)
25
µs
Fall Time
tPD
tF
CL = 10pF
14
ns
Rise Time
tR
CL = 10pF
30
ns
POWER SUPPLY
Supply Voltage
2
VCC
Guaranteed by VOS tests
1
_______________________________________________________________________________________
5.5
V
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
(VCC = 3.3V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
Supply Current
ICC
Power-Supply Rejection Ratio
PSRR
Power-Up Time
Note 1:
Note 2:
Note 3:
Note 4:
TYP
MAX
VCC = 5.5V
CONDITIONS
MIN
0.7
1.35
VCC = 1.0V, TA = +25°C
0.6
1.0
VCC = 0.9V to 5.5V, TA = +25°C
40
tON
UNITS
µA
53
dB
3
ms
All devices are 100% production tested at TA = +25°C. Temperature limits are guaranteed by design.
Hysteresis is the input voltage difference between the two switching points.
Overdrive is defined as the voltage above or below the average of the switching points.
Guaranteed by ATE and/or bench characterization over temperature.
Typical Operating Characteristics
(VCC = 3.3V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
800
600
TA = +25°C
35
VCC = 5V
30
25
20
VCC = 3.3V
15
2.5
VCC = 1.8V
10
200
MAX9065 toc03
MAX9065 toc02
40
TA = -40°C
3.0
OUTPUT VOLTAGE LOW (V)
SUPPLY CURRENT (nA)
45
SUPPLY CURRENT (μA)
TA = +85°C
400
50
MAX9065 toc01
1200
1000
OUTPUT VOLTAGE LOW
vs. SINK CURRENT
SUPPLY CURRENT
vs. OUTPUT TRANSITION FREQUENCY
2.0
1.5
VCC = 5V
VCC = 3.3V
1.0
VCC = 1.8V
0.5
5
0
1
2
3
4
5
1
100
10
4
8
12
16
OUTPUT TRANSITION FREQUENCY (kHz)
SINK CURRENT (mA)
OUTPUT VOLTAGE HIGH
vs. SOURCE CURRENT
HYSTERESIS VOLTAGE
vs. TEMPERATURE
THRESHOLD VOLTAGE
vs. TEMPERATURE
100
VCC = 5V
VCC = 3.3V
1.0
0.5
80
HYSTERESIS (mV)
2.0
1.5
90
70
60
VTH = 4.2V
50
40
30
VTH = 3V
20
VCC = 1.8V
4
6
SOURCE CURRENT (mA)
8
VTH = 4.2V
4.0
3.8
3.6
3.4
3.2
VTH = 3V
2.8
0
2
4.2
3.0
10
0
20
4.4
THRESHOLD VOLTAGE (V)
MAX9065 toc04
2.5
0
0
SUPPLY VOLTAGE (V)
3.0
OUTPUT VOLTAGE HIGH (V)
0
0.1
6
MAX9065 toc05
0
MAX9065 toc06
0
-40
-15
10
35
TEMPERATURE (°C)
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
3
MAX9065
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.)
21
3.6
3.4
3.2
3.0
VTH = 3V
VCC = 5V
19
VTH = 4.2V
PROPAGATION DELAY (μs)
3.8
250
MAX9065 toc08
VTH = 4.2V
23
PROPAGATION DELAY (μs)
THRESHOLD VOLTAGE (V)
4.2
2.8
25
MAX9065 toc07
4.4
4.0
PROPAGATION DELAY
vs. INPUT OVERDRIVE
PROPAGATION DELAY
vs. TEMPERATURE
VCC = 3.3V
17
15
13
11
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
150
VCC = 1.8V
100
VCC = 3.3V
VCC = 5V
VCC = 1.8V
7
2.4
200
50
9
2.6
0
-40
-15
10
35
60
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
PROPAGATION DELAY
vs. SUPPLY VOLTAGE
1kHz FREQUENCY RESPONSE
0
85
20 40 60 80 100 120 140 160 180 200
INPUT OVERDRIVE (mV)
10kHz FREQUENCY RESPONSE
MAX9065 toc12
MAX9065 toc11
MAX9065 toc10
25
VTH = 4.2V
20
15
VCC = 3.3V
VCC = 3.3V
4.4V
4.4V
IN
200mV/div
IN
200mV/div
4V
4V
VTH = 3V
MAX9065 toc09
THRESHOLD VOLTAGE
vs. SUPPLY VOLTAGE
PROPAGATION DELAY (ms)
OUT
2V/div
OUT
2V/div
10
0V
0V
5
VOD = ±200mV
0
0
1
2
3
4
5
6
20μs/div
200μs/div
SUPPLY VOLTAGE (V)
OUTPUT RESPONSE TO SUPPLY
VOLTAGE TRANSIENT
3V
VIN = VTH + 50mV
VCC
200mV/div
OUT
2V/div
0V
VCC
2V/div
0V
VIN = VTH + 150mV
OUT
2V/div
0V
VIN = VTH + 300mV
OUT
2V/div
0V
OUT
2V/div
VIN = 4.3V
VCC = 3.3V
0V
1ms/div
1ms/div
4.34
4.32
4.30
4.28
4.26
4.24
4.22
4.20
4.18
4.16
4.14
4.12
4.10
4.08
4.06
MAX9065 toc15
MAX9065 toc14
MAX9065 toc13
3.2V
POWER-SUPPLY REJECTION
FOR NO FALSE TRIGGERING
POWER-UP/POWER-DOWN RESPONSE
TRIP POINT (V)
MAX9065
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
UPPER TRIP POINT
LOWER TRIP POINT
VCC = 3.3V + 100mVP-P
10
100
1k
10k
FREQUENCY (Hz)
4
_______________________________________________________________________________________
100k
1M
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
PIN
SOT23
1
UCSP
B1
NAME
VCC
2, 3
B2
GND
4
A2
IN
5
A1
OUT
FUNCTION
External Supply Input. Bypass
to ground with a 0.1µF bypass
capacitor.
Ground
Window Comparator Input
Push-Pull Output
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).
Table 1. MAX9065 Operation
INPUT VOLTAGE
OUTPUT
VIN > 4.2V
Low
3.0V < VIN < 4.2V
High
VIN < 3.0V
Low
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 VCC goes to 0V, the n-channel FET is turned off,
eliminating the resistor-divider as a leakage path for
current.
Operation
Applications
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
VLOWER, for comparison with an internal 0.2V reference
voltage. When the input voltage exceeds 4.2V, VUPPER
is greater than 0.2V, causing the output to assert low.
When the input voltage falls below 3.0V, VLOWER is less
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 VCC with a 0.1µF capacitor to ground.
Chip Information
PROCESS: BiCMOS
_______________________________________________________________________________________
5
MAX9065
Pin Description
MAX9065
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
UTV = 4.2V
HYSTERESIS = 1%
IN
HYSTERESIS = 1%
LTV = 3.0V
OUT
Figure 1. Hysteresis Trip Points
6
_______________________________________________________________________________________
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
PACKAGE CODE
DOCUMENT NO.
4 UCSP
B4-1
21-0117
5 SOT23
U5-2
21-0057
4L, UCSP 2x2.EPS
PACKAGE TYPE
PACKAGE OUTLINE, 2x2 UCSP
21-0117
G
1
1
_______________________________________________________________________________________
7
MAX9065
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
Package Information (continued)
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages.
SOT-23 5L .EPS
MAX9065
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
8
_______________________________________________________________________________________
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
REVISION
NUMBER
REVISION
DATE
DESCRIPTION
PAGES
CHANGED
0
7/08
Initial release
—
1
10/08
Removed future part reference from 5 SOT23 package
1
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
© 2008 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
MAX9065
Revision History