MAX9027 Maxim, MAX9027 Datasheet

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MAX9027

Manufacturer Part Number
MAX9027
Description
The MAX9025–MAX9028 nanopower comparators in space-saving chip-scale (UCSP™) packages feature Beyond-the-Rails™ inputs and are guaranteed to operate down to +1
Manufacturer
Maxim
Datasheet

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Part Number
Manufacturer
Quantity
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Part Number:
MAX9027EBT+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX9025–MAX9028 nanopower comparators in
space-saving chip-scale (UCSP™) packages feature
Beyond-the-Rails™ inputs and are guaranteed to oper-
ate down to +1.8V. The MAX9025/MAX9026 feature an
on-board 1.236V ±1% reference and draw an ultra-low
supply current of only 1µA, while the MAX9027/
MAX9028 (without reference) require just 0.6µA of supply
current. These features make the MAX9025–MAX9028
family of comparators ideal for all 2-cell battery-
monitoring/management applications.
The unique design of the output stage limits supply-
current surges while switching, virtually eliminating the
supply glitches typical of many other comparators. This
design also minimizes overall power consumption under
dynamic conditions. The MAX9025/MAX9027 have a
push-pull output stage that sinks and sources current.
Large internal-output drivers allow rail-to-rail output
swing with loads up to 5mA. The MAX9026/MAX9028
have an open-drain output stage that makes them suit-
able for mixed-voltage system design. All devices are
available in the miniature 6-bump UCSP packages.
Refer to the MAX9117 data sheet for similar comparators
in 5-pin SC70 packages and the MAX9017 data sheet for
similar dual comparators in 8-pin SOT23 packages.
Typical Application Circuit appears at end of data sheet.
19-3241; Rev 1; 6/11
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Beyond-the-Rails and UCSP are trademarks of Maxim Integrated
Products, Inc.
MAX9025
MAX9026
MAX9027
MAX9028
PART
2-Cell Battery Monitoring/Management
Ultra-Low-Power Systems
Mobile Communications
Notebooks and PDAs
Sensing at Ground or Supply Line
Telemetry and Remote Systems
Medical Instruments
REFERENCE
UCSP, 1.8V, Nanopower, Beyond-the-Rails
INTERNAL
________________________________________________________________ Maxim Integrated Products
Yes
Yes
No
No
General Description
Comparators With/Without Reference
Open-Drain
Open-Drain
OUTPUT
Push-Pull
Push-Pull
Selector Guide
TYPE
Applications
CURRENT
SUPPLY
(µA)
1.0
1.0
0.6
0.6
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX9025EBT+T
MAX9026EBT+T
MAX9027EBT+T
MAX9028EBT+T
Space-Saving UCSP Package (1mm x 1.52mm)
Ultra-Low Supply Current
Guaranteed to Operate Down to +1.8V
Internal 1.236V ±1% Reference (MAX9025/MAX9026)
Input Voltage Range Extends 200mV
Beyond-the-Rails
CMOS Push-Pull Output with ±5mA Drive
Capability (MAX9025/MAX9027)
Open-Drain Output Versions Available
(MAX9026/MAX9028)
Crowbar-Current-Free Switching
Internal Hysteresis for Clean Switching
No Phase Reversal for Overdriven Inputs
TOP VIEW
(BUMPS ON BOTTOM)
( ) MAX9027/MAX9028 PINS
0.6µA (MAX9027/MAX9028)
1µA with Reference (MAX9025/MAX9026)
PART
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
1
2
3
RANGE
TEMP
(V
Ordering Information
IN+
REF
IN-
B
EE
)
Pin Configurations
MAX9025–
MAX9028
UCSP
OUT
BUMP-
PACKAGE
V
V
A
CC
EE
6 UCSP
6 UCSP
6 UCSP
6 UCSP
Features
MARK
TOP
ADB
ADC
ADD
ADE
1

Related parts for MAX9027

MAX9027 Summary of contents

Page 1

... Beyond-the-Rails™ inputs and are guaranteed to oper- ate down to +1.8V. The MAX9025/MAX9026 feature an on-board 1.236V ±1% reference and draw an ultra-low supply current of only 1µA, while the MAX9027/ MAX9028 (without reference) require just 0.6µA of supply current. These features make the MAX9025–MAX9028 family of comparators ideal for all 2-cell battery- monitoring/management applications ...

Page 2

... CC EE Voltage Inputs (IN+, IN-, REF) .........(V EE Output Voltage MAX9025/MAX9027 ....................(V EE MAX9026/MAX9028 ..................................(V Current into Input Pins ........................................................20mA Output Current..................................................................±50mA 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 ...

Page 3

... Fall Time Power-Up Time Reference Voltage Reference Voltage Temperature Coefficient Reference Output Voltage Noise ∆V Reference Line Regulation ∆V Reference Load Regulation ELECTRICAL CHARACTERISTICS—MAX9027/MAX9028 (WITHOUT REF + -40°C to +85°C, unless otherwise noted. Typical values are ...

Page 4

... UCSP, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference ELECTRICAL CHARACTERISTICS—MAX9027/MAX9028 (WITHOUT REF) (continued + -40°C to +85°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Output Voltage Swing High V CC Output Voltage Swing Low V Output Leakage Current ...

Page 5

... TEMPERATURE (°C) MAX9027/MAX9028 SUPPLY CURRENT vs. OUTPUT TRANSITION FREQUENCY 1. 100 0.1 1 TRANSITION FREQUENCY (kHz) MAX9025/MAX9027 OUTPUT VOLTAGE HIGH vs. SOURCE CURRENT 800 600 400 200 SOURCE CURRENT (mA 1.8V ...

Page 6

... 2.5 2.0 -40 - TEMPERATURE (°C) MAX9025/MAX9026 REFERENCE VOLTAGE vs. TEMPERATURE 1.239 5 DEVICES 1.237 1.235 1.233 1.231 -40 - TEMPERATURE (°C) MAX9025/MAX9027 SHORT-CIRCUIT SOURCE CURRENT vs. TEMPERATURE OUT 1. -40 - TEMPERATURE (°C) INPUT BIAS CURRENT vs ...

Page 7

... PROPAGATION DELAY (t ) PD+ vs. PULLUP RESISTANCE 200 175 150 125 100 1. 100 1000 10000 PULLUP RESISTANCE (kΩ) MAX9025/MAX9027 PROPAGATION DELAY (t ) PD+ vs. TEMPERATURE 1. -40 - TEMPERATURE (°C) PROPAGATION DELAY (t ...

Page 8

UCSP, 1.8V, Nanopower, Beyond-the-Rails Comparators With/Without Reference (V = +5V 0V 15pF, V OVERDRIVE PROPAGATION DELAY (V = 3V) CC MAX9025 toc28 +100mV IN+ -100mV OUT 1V/div 0V 20µs/div 10kHz FREQUENCY RESPONSE (V ...

Page 9

... The output stage employs a unique design that mini- mizes supply-current surges while switching, virtually eliminating the supply glitches typical of many other comparators. The MAX9025/MAX9027 have a push-pull output stage that sinks as well as sources current. The _______________________________________________________________________________________ IN+ ...

Page 10

... CAPACITY, V END-OF-LIFE (V) AA SIZE FRESH (V) (mA-H) 3.0 1.8 2000 2.4 1.8 750 3.5 2.7 1000 2.4 1.8 1000 V CC REF BANDGAP V EE Adding External Hysteresis dependent. Over the full discharge CC MAX9025/MAX9026 MAX9027/MAX9028 OPERATING TIME OPERATING TIME (hr) ( 680,000 ...

Page 11

... R is the source resistance and R S back resistance. Because the comparison threshold is 1 the MAX9027 was chosen for its push-pull out- CC put and lack of reference. This provides symmetrical hysteresis around the threshold. Output Considerations In most cases, the push-pull outputs of the MAX9025/MAX9027 are best for external hysteresis ...

Page 12

... Comparators With/Without Reference 100mV P-P IN+ IN- MAX9027 V EE Figure 4. Zero-Crossing Detector UCSP Applications Information For the latest application details on UCSP construction, dimensions, tape carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profiles, as well as the latest information on reliability testing results Maxim’ ...

Page 13

... Comparators With/Without Reference For the latest package outline information and land patterns 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 ...

Page 14

... Added information for lead-free versions 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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