MAX9645 Maxim, MAX9645 Datasheet

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MAX9645

Manufacturer Part Number
MAX9645
Description
The MAX9644/MAX9645/MAX9646 are small, single comparators, ideal for a wide variety of portable electronics applications such as cell phones, media players, and notebooks that have extremely tight board space and power constraints
Manufacturer
Maxim
Datasheet
The MAX9644/MAX9645/MAX9646 are small, single com-
parators, ideal for a wide variety of portable electronics
applications such as cell phones, media players, and
notebooks that have extremely tight board space and
power constraints. These comparators are offered in both
a miniature 4-bump UCSP™ package with a 1mm x 1mm
footprint (as small as two 0402 resistors) and a
5-pin SOT23 package.
The ICs feature an input voltage range of -0.3V to
+5.5V, independent of supply voltage. These devices
maintain high impedance at the inputs even when pow-
ered down (V
nal filtering to provide high RF immunity.
The ICs have an internal 0.2V reference. These devices
feature either a push-pull or an open-drain output. They
consume only 700nA (max) supply current and operate
down to V
perature range.
19-5803; Rev 1; 10/11
UCSP is a trademark of Maxim Integrated Products, Inc.
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.
MAX9644
MAX9645
MAX9646
Cell Phones
Portable Media Players
Electronic Toys
Notebook Computers
Portable Medical Devices
CC
PART
= 1V over the extended -40°C to +85°C tem-
CC
or V
________________________________________________________________ Maxim Integrated Products
Low-Power Comparators with Precision
REF
General Description
= 0V). They also feature inter-
REFERENCE VOLTAGE (V)
Applications
0.2
0.2
0.2
Reference in 4-Bump UCSP
o Tiny, 1mm x 1mm x 0.6mm 4-Bump UCSP
o Ultra-Low Operating Current (700nA max)
o -0.3V to +5.5V Input Voltage Range
o Internal 0.2V Reference Trimmed to 1% Accuracy
o 15µs Propagation Delay
o -40°C to +85°C Extended Temperature Range
Note: All devices are specified over the extended -40°C to
+85°C operating temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
G45 = Protective die coating.
MAX9644EBS+G45
MAX9644EUK+
MAX9645EBS+G45
MAX9645EUK+
MAX9646EBS+G45
MAX9646EUK+
Footprint = Two 0402 Resistors
Also Available in a 5-Pin SOT23 Package
Noninverting
Noninverting
PART
Inverting
INPUT
Ordering Information
PIN-PACKAGE
4 UCSP
5 SOT23
4 UCSP
5 SOT23
4 UCSP
5 SOT23
Selector Guide
Open drain
Open drain
OUTPUT
Push-pull
Features
TOP MARK
+AFJN
+AFJO
+AFJP
+AGM
+AGN
+AGL
1

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MAX9645 Summary of contents

Page 1

... Rev 1; 10/11 Low-Power Comparators with Precision General Description The MAX9644/MAX9645/MAX9646 are small, single com- parators, ideal for a wide variety of portable electronics applications such as cell phones, media players, and notebooks that have extremely tight board space and power constraints. These comparators are offered in both a miniature 4-bump UCSP™ ...

Page 2

... Reference in 4-Bump UCSP ABSOLUTE MAXIMUM RATINGS V , REF GND................................................-0.3V to +6V CC OUT to GND (MAX9644/MAX9645)..........................-0.3V to +6V OUT to GND (MAX9646 only) .................-0. 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) .......238 mW 5-Pin SOT23 (derate 3.9mW/° ...

Page 3

... MAX9644/MAX9645 -40°C to +85°C. Typical values CONDITIONS Guaranteed tests 1. 5. +25°C. Temperature limits are guaranteed by design. A Typical Operating Characteristics = 3.3V for MAX9644/MAX9645, GND = 0, T PULLUP SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY 100 ...

Page 4

... TEMPERATURE (°C) PROPAGATION DELAY vs. TEMPERATURE -40 -15 10 TEMPERATURE (°C) 4 _______________________________________________________________________________________ Typical Operating Characteristics = 3.3V for MAX9644/MAX9645, GND = 0, T PULLUP -10 CC -15 -20 2.0 2.5 3.0 0 201 3.3V CC 200.8 200.6 200.4 200.2 200.0 199.8 199.6 199.4 199 ...

Page 5

... V CC REF PULLUP PROPAGATION DELAY AT V 0.3V 0.1V 0V 100µs/div POWER-UP/POWER-DOWN RESPONSE 0V 0V 1ms/div _______________________________________________________________________________________ Reference in 4-Bump UCSP Typical Operating Characteristics (continued) = 3.3V for MAX9644/MAX9645, GND = 0, T PULLUP = 3.3V CC MAX9644 toc10 202.0 201.9 IN+ 201.8 100mV/div 201.7 201.6 201.5 201.4 OUT 201.3 2V/div 201 ...

Page 6

... Reference in 4-Bump UCSP TOP VIEW (BUMPS ON BOTTOM) OUT PIN NAME UCSP SOT23 Comparator Output. The MAX9644/MAX9645 have open-drain outputs. The MAX9646 has OUT push-pull output. Comparator Input. The MAX9644/MAX9646 have noninverting inputs. The MAX9645 has inverting inputs. B1 ...

Page 7

... If additional hysteresis is needed, an external positive feedback network can be easily implemented on the MAX9644 and MAX9646 non- inverting input devices. Additional external hysteresis is not possible on the MAX9645 because the noninverting input of the comparator is not externally accessible. ACTION AT OUTPUT External pullup resistor pulls output high. ...

Page 8

... Low-Power Comparators with Precision Reference in 4-Bump UCSP V = 1.0V TO 5.5V CC MAX9644 0.2V REF IN Chip Information PROCESS: BiCMOS 8 _______________________________________________________________________________________ V DD INTERNAL PULLUP 0.2V REF OUT I/O IN MICROCONTROLLER V = 1.0V TO 5.5V CC MAX9646 0.2V REF OUT IN Typical Operating Circuits V = 1. INTERNAL PULLUP MAX9645 OUT I/O MICROCONTROLLER V DD I/O MICROCONTROLLER ...

Page 9

... Low-Power Comparators with Precision For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 10

... Reference in 4-Bump UCSP For the latest package outline information and land patterns (footprints 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 per- tains to the package regardless of RoHS status ...

Page 11

... Updated Features section 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 ____________________ 11 © ...

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