Datasheet

bq34z100
www.ti.com SLUSAU1B –MAY 2012–REVISED DECEMBER 2012
INTEGRATING ADC (COULOMB COUNTER) CHARACTERISTICS (continued)
T
A
= –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at T
A
= 25°C and REG25 = 2.5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
SR_CONV
Conversion time Single conversion 1 s
Resolution 14 15 bits
V
OS(SR)
Input offset 10 µV
I
NL
Integral nonlinearity error ±0.007 ±0.034 % FSR
Z
IN(SR)
Effective input resistance
(1)
2.5 MΩ
I
lkg(SR)
Input leakage current
(1)
0.3 µA
(1) Specified by design. Not tested in production.
ADC (TEMPERATURE AND CELL MEASUREMENT) CHARACTERISTICS
T
A
= –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at T
A
= 25°C and REG25 = 2.5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN(ADC)
Input voltage range 0.05 1 V
t
ADC_CONV
Conversion time 125 ms
Resolution 14 15 bits
V
OS(ADC)
Input offset 1 mV
Z
ADC1
Effective input resistance (TS)
(1)
8 MΩ
Z
ADC2
Effective input resistance (BAT)
(1)
bq34z100 not measuring cell MΩ
8
voltage
bq34z100 measuring cell voltage 100 KΩ
I
lkg(ADC)
Input leakage current
(1)
0.3 µA
(1) Specified by design. Not tested in production.
DATA FLASH MEMORY CHARACTERISTICS
T
A
= –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at T
A
= 25°C and REG25 = 2.5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Data retention
(1)
10 Years
t
DR
Flash-programming write cycles
(1)
20,000 Cycles
t
WORDPROG
Word programming time
(1)
2 ms
I
CCPROG
Flash-write supply current
(1)
5 10 mA
(1) Specified by design. Not tested in production.
HDQ COMMUNICATION TIMING CHARACTERISTICS
T
A
= –40°C to 85°C, C
REG
= 0.47 μF, 2.45 V < V
REGIN
= V
BAT
< 5.5 V; typical values at T
A
= 25°C and V
REGIN
= V
BAT
= 3.6 V
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
(CYCH)
Cycle time, host to bq34z100 190 μs
t
(CYCD)
Cycle time, bq34z100 to host 190 205 250 μs
t
(HW1)
Host sends 1 to bq34z100 0.5 50 μs
t
(DW1)
bq34z100 sends 1 to host 32 50 μs
t
(HW0)
Host sends 0 to bq34z100 86 145 μs
t
(DW0)
bq34z100 sends 0 to host 80 145 μs
t
(RSPS)
Response time, bq34z100 to host 190 950 μs
t
(B)
Break time 190 μs
t
(BR)
Break recovery time 40 μs
HDQ line rising time to logic 1 (1.2 ns
t
(RISE)
950
V)
t
(RST)
HDQ Reset 1.8 2.2 s
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