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LC709203F 데이터시트 PDF




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부품번호 LC709203F 기능
기능 Battery Fuel Gauge LSI
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LC709203F 데이터시트, 핀배열, 회로
LC709203F
Smart LiB Gauge
Battery Fuel Gauge LSI
for 1-Cell Lithium-ion (Li+)
Overview
LC709203F is a Fuel Gauge for a single lithium ion battery. It is part of
our Smart LiB Gauge family of Fuel Gauges which measure the
battery RSOC (Relative State Of Charge) using its unique algorithm
called HG-CVR. The HG-CVR algorithm eliminates the use of a sense
resistor and provides accurate RSOC information even under unstable
conditions (e.g. changes of battery; temperature, loading, aging and self-
discharge). An accurate RSOC contributes to the operating time of
portable devices.
LC709203F is available in two small packages realizing the industries
smallest PCB footprint for the complete solution. It has minimal
parameters to be set by the user enabling simple, quick setup and
operation.
www.onsemi.com
WDFN8 3x4, 0.65P
Pb-Free, Halogen Free type
Features
HG-CVR algorithm technology
No external sense resistor
2.8% accuracy of RSOC
Accurate RSOC of aging battery
Automatic convergence of error
Adjustment for the parasitic impedance around the battery
Simple and Quick Setup
Low power consumption
3μA Operational mode
Precision Voltage measurement
±7.5mV
Precision Timer
±3.5%
Alerts for Low RSOC and / or Low Voltage
Temperature compensation
Sense Thermistor input
Via I2C
Detect Battery insertion
I2C Interface (up to 400 kHz supported)
WLCSP9, 1.60x1.76
Pb-Free, Halogen Free type
ORDERING INFORMATION
See detailed ordering and shipping information in the
package dimensions section on page 23 of this data sheet
Applications
Wireless Handsets
Smartphones / PDA devices
MP3 players
Digital cameras
Portable Game Players
USB-related devices
* I2C Bus is a trademark of Philips Corporation.
© Semiconductor Components Industries, LLC, 2015
March 2015- Rev. 8
1
Publication Order Number:
LC709203F/D




LC709203F pdf, 반도체, 판매, 대치품
LC709203F
Table 1. Pin Function
WDFN8
1
2
3
WLP9
1B
1A
3A
Pin Name
TEST
VSS
VDD
4 2A ALARMB
5 3B TSW
6 3C TSENSE
7 1C SDA
8 2C SCL
- 2B NC
I/O Description
I Connect this pin to VSS.
- Connect this pin to the battery’s negative () pin.
- Connect this pin to the battery’s positive (+) pin.
This pin indicates alarm by low output(open drain). Pull-up must be done externally.
O Alarm conditions are specified by registers (0x13 or 0x14).
Connect this pin to VSS when not in use.
Power supply output for thermistor. This pin goes HIGH during temperature read operation.
O Resistance value of TSW (for thermistor pull-up) must be the same value as the thermistor.
(Note 1)
Thermistor sense input. If you connect this pin to thermistor, insert 100resistance between them
I
for ESD. (Note 1)
I/O I2C Data pin (open drain). Pull-up must be done externally.
I/O I2C Clock pin (open drain). Pull-up must be done externally.
- Connect this pin to VSS.
Note 1: TSW and TSENSE must be disconnected as figure 1 when not in use.
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LC709203F 전자부품, 판매, 대치품
LC709203F
Table 5. I2C Slave Characteristics at Ta = 40 to +85C, VSS = 0V
Parameter
Symbol
Pin/Remarks
Clock frequency
Bus free time between STOP
condition and START
condition
Hold time (repeated) START
condition
First clock pulse is generated
after this interval
Repeated START condition
setup time
STOP condition setup time
Data hold time
Data setup time
Clock low period
Clock high period
Clock/data fall time
Clock/data rise time
Wake up time from Sleep
mode
SDA low pulse width to wake
up
Wake up retention time from
the falling edge of SDA
Wake up retention time from
STOP condition
TSCL
TBUF
SCL
SCL, SDA
THD:STA SCL, SDA
TSU:STA
TSU:STO
THD:DAT
TSU:DAT
TLOW
THIGH
TF
TR
TWU
TSP
TWR1
TWR2
SCL, SDA
SCL, SDA
SCL, SDA
SCL, SDA
SCL
SCL
SCL, SDA
SCL, SDA
SDA
SDA
SDA
SCL, SDA
Conditions
See Fig. 5.
VDD [V]
See Fig. 5.
See Fig. 5.
See Fig. 5.
See Fig. 5.
See Fig. 5.
See Fig. 5.
See Fig. 5.
2.5 to 4.5
See Fig. 6.
See Fig. 6.
See Fig. 6.
See Fig. 6.
Specification
min Max
400
1.3
unit
kHz
s
0.6 s
0.6
0.6
0
100
1.3
0.6
20 + 0.1CB
20 + 0.1CB
0.6
500
500
s
s
0.9 s
ns
s
s
300 ns
300 ns
400 s
s
ms
ms
SCL
tR
t LOW
t HD:STA t HD:DAT
tF
t HIGH
t SU:DAT t SU:STA
t HD:STA
SDA
t BUF
PS
S
Figure 5. I2C Timing Diagram
t SU:STO
P
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LC709203F

Battery Fuel Gauge LSI

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