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ADBMS1818ASWZ-R7 数据表(PDF) 6 Page - Analog Devices

部件名 ADBMS1818ASWZ-R7
功能描述  18-Cell Battery Monitor with Daisy Chain Interface
PDF  89 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADBMS1818ASWZ-R7 数据表(HTML) 6 Page - Analog Devices

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Data Sheet
ADBMS1818
SPECIFICATIONS
analog.com
Rev. 0 | 6 of 89
Table 3.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
C13 Voltage
TME specifications met, apply over the full specified
temperature range
2.5
V
C7 Voltage
TME specifications met, apply over the full specified
temperature range
1
V
VREG Supply Voltage (VREG)
TME supply rejection < 1 mV/V, apply over the full specified
temperature range
4.5
5
5.5
V
DRIVE Output Voltage
Sourcing 1 µA
5.4
5.7
5.9
V
Sourcing 1 µA, apply over the full specified temperature
range
5.2
5.7
6.1
V
Sourcing 500 µA, apply over the full specified temperature
range
5.1
5.7
6.1
V
Digital Supply Voltage (VREGD)
Apply over the full specified temperature range
2.7
3
3.6
V
Discharge Switch On Resistance
VCELL = 3.6 V, apply over the full specified temperature range
4
10
Ω
Thermal Shutdown Temperature
150
°C
Watchdog Timer Pin Low (VOL(WDT))
WDT pin sinking 4 mA, apply over the full specified
temperature range
0.4
V
General-Purpose I/O Pin Low (VOL(GPIO))
GPIO pin sinking 4 mA (used as digital output), apply over
the full specified temperature range
0.4
V
1 The active state current is calculated from dc measurements. The active state current is the additional average supply current into VREG when there are continuous 1 MHz
communications on the isoSPI ports with 50% data 1s and 50% data 0s. Slower clock rates reduce the supply current.
ADC TIMING SPECIFICATIONS
Table 4.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
(tCYCLE) (See Figure 55, Figure 56, and Figure 58)
Measurement and Calibration Cycle Time When
Starting from the REFUP State in Normal Mode
Measure 18 cells, apply over the full specified temperature
range
2027
2343
2488
µs
Measure 3 cells, apply over the full specified temperature range 352
407
432
µs
Measure 18 cells and 2 GPIO inputs, apply over the full
specified temperature range
2717
3140
3335
µs
Measurement and Calibration Cycle Time When
Starting from the REFUP State in Filtered Mode
Measure 18 cells, apply over the full specified temperature
range
174.2
201.3
213.8
ms
Measure 3 cells, apply over the full specified temperature range 29.1
33.6
35.7
ms
Measure 18 cells and 2 GPIO inputs, apply over the full
specified temperature range
232.3
268.5
285.1
ms
Measurement and Calibration Cycle Time When
Starting from the REFUP State in Fast Mode
Measure 18 cells, apply over the full specified temperature
range
970
1121
1191
µs
Measure 3 cells, apply over the full specified temperature range 176
203
215
µs
Measure 18 cells and 2 GPIO inputs, apply over the full
specified temperature range
1307
1511
1605
µs
Skew Time (tSKEW1). The Time Difference
Between Cell 18 and GPIO1 Measurements,
Command = ADCVAX (See Figure 58)
Fast mode, apply over the full specified temperature range
168
194
206
µs
Normal mode, apply over the full specified temperature range
470
543
577
µs
Skew Time(tSKEW2). The Time Difference Between
Cell 18 and Cell 1 Measurements, Command =
ADCV (See Figure 55)
Fast mode, apply over the full specified temperature range
202
233
248
µs
Normal mode, apply over the full specified temperature range
580
670
711
µs
Regulator Start-Up Time (tWAKE)
VREG generated from the DRIVE pin (see Figure 84), apply over
the full specified temperature range
200
400
µs



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