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BQ29312A Datasheet(PDF) 6 Page - Texas Instruments

Part # BQ29312A
Description  FOUR-CELL LITHIUM-ION
Download  39 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

BQ29312A Datasheet(HTML) 6 Page - Texas Instruments

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AC ELECTRICAL CHARACTERISTICS
AC TIMING SPECIFICATIONS (I2C COMPATIBLE SERIAL INTERFACE)
tsu(STA)
SCLK
SDATA
SCLK
SDATA
SCLK
SDATA
tw(H)
tw(L)
tf
tr
tr
tf
Start
Condition
SDA
Input
SDA
Change
Stop
Condition
th(STA)
th(DAT)
tsu(DAT)
th(ch)
Start Condition
tv
1
2
3
7
8
9
MSB
ACK
Stop Condition
tsu(STOP)
1
2
3
7
8
9
MSB
ACK
tsu(BUF)
bq29312A
SLUS629A – JANUARY 2005 – REVISED AUGUST 2005
T
A = 25°C, C(REG) = 4.7 µF, BAT = 14 V (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
NOM
MAX
UNIT
t(WDTINT)
WDT start-up detect time
250
700
2000
ms
t(WDWT)
WDT detect time
100
µs
PARAMETER
MIN
MAX
UNIT
tr
SCLK SDATA rise time
1000
ns
tf
SCLK SDAT fall time
300
ns
tw(H)
SCLK pulse width high
4.0
µs
tw(L)
SCLK pulse width low
4.7
µs
tsu(STA)
Setup time for START condition
4.7
µs
th(STA)
START condition hold time after which first clock pulse is generated
4.0
µs
tsu(DAT)
Data setup time
250
ns
th(DAT)
Data hold time
0
µs
tsu(STOP)
Setup time for STOP condition
4.0
µs
tsu(BUF)
Time the bus must be free before new transmission can start
4.7
µs
t V
Clock low to data out valid
900
ns
th(CH)
Data out hold time after clock low
0
ns
fSCL
Clock frequency
0
100
kHz
6


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