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DS2764AE+025

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1 of 20
011806
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata
.
GENERAL DESCRIPTION
The DS2764 high-precision Li+ battery monitor is a
data-acquisition, information-storage, and safety-
protection device tailored for cost-sensitive battery
pack applications. This low-power device integrates
precise temperature, voltage, and current
measurement, nonvolatile (NV) data storage, and Li+
protection into the small footprint of either a TSSOP
package or flip-chip package. The DS2764 is a key
component in applications requiring remaining
capacity estimation, safety monitoring, and battery-
specific data storage.
PIN CONFIGURATIONS
FEATURES
Li+ Safety Circuit
Overvoltage Protection
Overcurrent/Short-Circuit Protection
Undervoltage Protection
0V Battery Recovery Charge
Available in Two Configurations:
Internal 25m Sense Resistor
External User-Selectable Sense Resistor
Current Measurement
12-Bit Bidirectional Measurement
Internal Sense Resistor Configuration:
0.625mA LSB and ±1.9A Dynamic Range
External Sense Resistor Configuration:
15.625V LSB and ±64mV Dynamic Range
Current Accumulation:
Internal Sense Resistor: 0.25mAhr LSB
External Sense Resistor: 6.25Vhr LSB
Voltage Measurement with 4.88mV Resolution
Temperature Measurement Using Integrated
Sensor with 0.125°C Resolution
40 Bytes of Lockable EEPROM
Option for Unique 64-bit ID
Industry 2-Wire Interface with Programmable
Slave Address
Low-Power Consumption:
Active Current: 60A typ, 90A max
Sleep Current: 1A typ, 2A max
APPLICATIONS
PDAs
Cell Phones/Smartphones
Digital Cameras
ORDERING INFORMATION
PART TEMP RANGE PIN-PACKAGE
DS2764BE+ -20°C to +70°C 16 TSSOP
+Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide appears at end of data sheet, for additional
options.
DS2764
High-Precision Li+ Battery Monito
r
wi
t
h 2-Wir
e
In
te
rf
ace
www.maxim-ic.com
TOP VIEW
CC
V
IN
V
DD
SCL
V
SS
V
SS
V
SS
SDA
IS1
TSSOP
IS2
SNS
SNS
1
2
2
3
2
1
4
5
6
7
8
16
15
14
13
12
11
10
9
SNS
PS
PLS
DC
FLIP CHIP
(TOP VIEWBUMPS ON BOTTOM)
PLS DC IS2
C
C
P
S
V
IN
IS1
V
DD
SCL SDA
SNS
V
SS
1 2 3 4
A
B
C
D
E
F
SNS
PROBE
V
SS
PROBE
DS2764 High-Precision Li+ Battery Monitor with 2-Wire Interface
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ABSOLUTE MAXIMUM RATINGS
Voltage Range on PLS and CC Pins, Relative to V
SS
-0.3V to +18V
Voltage Range on Any Other Pin, Relative to V
SS
-0.3V to +6V
Continuous Internal Sense Resistor Current
2.5A
Pulsed Internal Sense Resistor Current
50A for <100µs/s, <1000 pulses
Operating Temperature Range -40°C to +85°C
Storage Temperature Range -55°C to +125°C
Soldering Temperature See IPC/JEDEC J-STD-020A Specification
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 the absolute maximum rating conditions for extended periods may affect device.
RECOMMENDED DC OPERATING CONDITIONS
(2.5V V
DD
5.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
DD
(Note 1) 2.5 5.5 V
Voltage Sense Input V
IN
(Note 1) -0.3 V
DD
+ 0.3 V
Serial Interface Pins SCL, SDA (Note 1) -0.3 +5.5 V
DC ELECTRICAL CHARACTERISTICS
(2.5V V
DD
5.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Active Current I
ACTIVE
SCL = SDA = V
DD
, normal
operation
60 90
A
Sleep Mode Current I
SLEEP
SCL = SDA = 0V, no activity, PS
floating
1 2
A
Input Logic High: SCL, SDA V
IH
(Note 1) 1.5 V
Input Logic High: PS
V
IH
(Note 1) 0.7 x V
DD
V
Input Logic Low: SCL, SDA V
IL
(Note 1) 0.4 V
Input Logic Low: PS
V
IL
(Note 1) 0.3 x V
DD
V
Output Logic High: CC
V
OH
I
OH
= -0.1mA (Note 1) V
PLS
- 0.4 V
Output Logic High: DC
V
OH
I
OH
= -0.1mA (Note 1) V
DD
- 0.4 V
Output Logic Low: CC
V
OL_CC
I
OL
= 0.1mA (Note 1) 0.4 V
Output Logic Low: DC
V
OL_DC
I
OL
= 0.5A (Note 1)
0.4 V
Output Logic Low: SDA V
OL
I
OL
= 4mA (Note 1) 0.4 V
Pulldown Current: SCL, SDA I
PD
1
A
Input Resistance: V
IN
R
IN
5
M
Internal Current-Sense Resistor R
SNS
+25°C 20 25 30
m
Bus Low to Sleep time t
SLEEP
2.1 s
DS2764 High-Precision Li+ Battery Monitor With 2-Wire Interface
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ELECTRICAL CHARACTERISTICS: PROTECTION CIRCUITRY
(2.5V V
DD
5.5V, T
A
= 0°C to +50°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
4.325 4.350 4.375
Overvoltage Detect V
OV
(Notes 1, 2)
4.250 4.275 4.300
V
Charge Enable V
CE
(Note 1) 4.10 4.15 4.20 V
Undervoltage Detect V
UV
(Note 1) 2.5 2.6 2.7 V
Overcurrent Detect I
OC
(Note 3) 1.8 1.9 2.0 A
Overcurrent Detect V
OC
(Notes 1, 4) 45 47.5 50 mV
Short-Circuit Detect I
SC
(Note 3) 5.0 8.0 11 A
Short-Circuit Detect V
SC
(Notes 1, 4) 150 200 250 mV
Overvoltage Delay t
OVD
0.8 1 1.2 s
Undervoltage Delay t
UVD
90 100 110 ms
Overcurrent Delay t
OCD
5 10 20 ms
Short-Circuit Delay t
SCD
160 200 240
s
Test Threshold V
TP
0.5 1.0 1.5 V
Test Current I
TST
5 20 40
A
ELECTRICAL CHARACTERISTICS: TEMPERATURE, VOLTAGE, CURRENT
(2.5V V
DD
5.5V, T
A
= -20°C to +50°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Temperature Resolution T
LSB
0.125
C
Temperature Full-Scale Magnitude T
FS
127
C
Temperature Error T
ERR
(Note 5)
3 C
Voltage Resolution V
LSB
4.88 mV
Voltage Full-Scale Magnitude V
FS
4.75 V
Voltage Gain Error V
GERR
5 %
(Note 3) 0.625 mA
Current Resolution I
LSB
(Note 4) 15.625
V
(Notes 3, 6) 1.9 2.56 A
Current Full-Scale Magnitude I
FS
(Note 4) 64 mV
Current Offset Error I
OERR
(Note 7) 1 LSB
(Notes 3, 8, 9) 10
Current Gain Error I
GERR
(Note 4) 2
%
(Note 3) 0.25 mAh
Accumulated Current Resolution q
CA
(Note 4) 6.25 µVhr
Current Sampling Frequency f
SAMP
1456 Hz
t
ERR1
(Note 10)
1 3
%
Internal Timebase Accuracy
t
ERR2
(Note 10)
6.5
%
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

DS2764AE+025

Mfr. #:
Buy DS2764AE+025
Manufacturer:
Maxim Integrated
Description:
Battery Management Ic Mon Batt Li-Ion Hp
Lifecycle:
New from this manufacturer.
Delivery:
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