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DS2788E-

Description
Non-Isolated DC/DC Converters 7.5W 24V 5Vout 1.5A Horizontal Mount
Categorysemiconductor    Power management   
File Size501KB,32 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS2788E- Overview

Non-Isolated DC/DC Converters 7.5W 24V 5Vout 1.5A Horizontal Mount

DS2788E- Parametric

Parameter NameAttribute value
Product CategoryBattery Management
ManufacturerMaxim
RoHSDetails
ProductFuel Gauges
Battery TypeLithium Ion
Operating Supply Voltage2.5 V to 4.5 V
Operating Supply Current70 uA
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Package / CaseTSSOP-14
PackagingBulk
Mounting StyleSMD/SMT
Factory Pack Quantity96
Unit Weight0.004949 oz
19-4639; Rev 2; 5/09
Stand-Alone Fuel-Gauge IC with
LED Display Drivers
General Description
The DS2788 measures voltage, temperature, and cur-
rent, and estimates available capacity for rechargeable
lithium-ion (Li+) and Li+ polymer batteries. Cell charac-
teristics and application parameters used in the calcu-
lations are stored in on-chip EEPROM. The available
capacity registers report a conservative estimate of the
amount of charge that can be removed given the cur-
rent temperature, discharge rate, stored charge, and
application parameters. Capacity estimation is reported
in mAh remaining and percentage of full.
LED display drivers and a debounced input make dis-
play of the capacity information easy. The LED pins can
directly sink current, requiring only a resistor for setting
the current in the LED display, thus reducing space and
cost.
Features
Five 30mA Open-Drain Drivers for Driving LED
Fuel-Gauge Display
Debounced Fuel-Gauge Display Enable
Internal Voltage Measurement Gain Register for
Trimming External Voltage-Divider
Pin for Driving FETs to Enable Voltage-Divider
Only During Voltage Measurement, Conserving
Power
Precision Voltage, Temperature, and Current
Measurement System
Accurate, Temperature-Stable, Internal Time Base
Absolute and Relative Capacity Estimated from
Coulomb Count, Discharge Rate, Temperature,
and Battery Cell Characteristics
Accurate Warning of Low Battery Conditions
Automatic Backup of Coulomb Count and Age
Estimation to Nonvolatile (NV) EEPROM
Gain and Tempco Calibration Allows the Use of
Low-Cost Sense Resistors
24-Byte Battery/Application Parameter EEPROM
16-Byte User EEPROM
Unique ID and Multidrop 1-Wire
®
Interface
14-Pin TSSOP Package
DS2788
Applications
Power Tools
Electric Bicycles
Electric Vehicles
Uninterruptible Power Supply
Digital Cameras
Pin Configuration
TOP VIEW
+
LED2
LED1
DV
SS
V
DD
OVD
V
SS
DQ
1
2
3
4
5
6
7
14
13
12
LED3
LED4
LED5
PIO
V
IN
SNS
VMA
Ordering Information
PART
DS2788E+
DS2788E+T&R
TEMP RANGE
-25°C to +70°C
-25°C to +70°C
PIN-PACKAGE
14 TSSOP
14 TSSOP
DS2788
11
10
9
8
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
TSSOP
Typical Operating Circuit appears at end of data sheet.
1-Wire is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________
Maxim Integrated Products
1
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.

DS2788E- Related Products

DS2788E- DS2788E-TR DS2788EVKIT-
Description Non-Isolated DC/DC Converters 7.5W 24V 5Vout 1.5A Horizontal Mount Battery Management Stand-Alone F-Gauge w/LED Display Drvrs Power Management IC Development Tools DS2788EVKIT+
Product Category Battery Management Battery Management Power Management IC Development Tools
Manufacturer Maxim Maxim Maxim
RoHS Details Details Details
Factory Pack Quantity 96 2500 1
Product Fuel Gauges Fuel Gauges -
Battery Type Lithium Ion Li-Ion, Li-Polymer -
Operating Supply Voltage 2.5 V to 4.5 V 2.5 V to 5.5 V -
Operating Supply Current 70 uA 70 uA -
Minimum Operating Temperature - 40 C - 25 C -
Maximum Operating Temperature + 85 C + 70 C -
Package / Case TSSOP-14 TSSOP-14 -
Packaging Bulk Reel -
Mounting Style SMD/SMT SMD/SMT -
Unit Weight 0.004949 oz 0.004949 oz -
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