參數(shù)資料
型號： AS8510-ASST-500
廠商： ams
文件頁數(shù)： 13/47頁
文件大?。?/td> 0K
描述： IC BATTERY MANAGEMENT 20-SSOP
產(chǎn)品培訓(xùn)模塊： AS8510 Data Acquisition IC
標(biāo)準(zhǔn)包裝： 1
類型： 電池管理
輸入類型： 模擬，數(shù)字
輸出類型： 模擬，數(shù)字
接口： SPI 串行
電流 - 電源： 5.5mA
安裝類型： 表面貼裝
封裝/外殼： 20-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 20-SSOP
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： AS8510-ASST-500DKR
Revision 3.5
19 - 46
AS8510
Datasheet - Detailed Descr i p ti on
7.4.1 Normal Mode 1 (NOM1)
On Power-on-reset of the device, AS8510 goes into STOP State.
Transition to Normal mode1 (NOM1) occurs when the “START BIT” D0 of Mode Control Register MOD_CTL_REG in Table 33 is set to “1”
through the serial port SPI. Data Rate of voltage and current channels can be independently programmed and both the channels generate
interrupts for every output available from ADC. The interrupt signal is generated on the INT pin. The width of the interrupt pulse is eight cycles of
lp_clk. The data is stable up to the next interrupt. If the data rate is different for the two channels, the interrupt rate would follow the higher rate
among the two channels. Data update can be known by reading the status register. The functionality is explained in the waveform shown in
Figure 5. When the device is configured to NORMAL Mode1 from any mode the configuration should be through the STOP state only.
Figure 5. Normal Mode 1
7.4.2 Normal Mode 2 (NOM2)
NOM2 differs from NOM1 in such a way that it allows for a relaxed data rate at a period of TMC by programming the corresponding register as
long as the amplitude of current is less than a programmed threshold ITHC. However, when, the measured input signal exceeds the programmed
threshold, the data rate is changed to the rate of NOM1 mode.
Transition to NOM2 occurs when the “START BIT” D0 of Mode Control register MOD_CTL_REG in Table 33 is set to 1 and mode control bits to
01 through SPI. In this mode the data rate should be programmed with the time of TMC. An interrupt signal is generated on INT at the rate of TMC
secs with a pulse width of eight cycles of lp_clk. The data is stable up to the next interrupt. The data sample is compared against the programmed
threshold and when it is exceeded, the data sampling rate is changed to provide data at the data rate of NOM1 mode. However, as soon as the
data sample amplitude falls below the programmed threshold, the sampling rate is restored to provide data at the rate of TMC. The functionality is
illustrated in the waveform Figure 6.
Sampling with f1
INT at f1 rate from
current channel
Current Channel
DATA Register
t
I
START
STOP
t
V,T
Sampling with f2
Voltage Channel
DATA Register
Interrupt fromthe current channel is at f1 rate which is integer multiple of f2 rate fromvoltage channel
IDATA
V,TDATA
TINT
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