參數(shù)資料
型號: AS8510-ASST
廠商: ams
文件頁數(shù): 6/47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: 2,000
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: 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: 帶卷 (TR)
Revision 3.5
13 - 46
AS8510
Datasheet - Electrical Character i s t ics
6.4.5 Internal (Programmable) Current Source for External Temperature Measurement
Notes:
1. Current value can be programmed in steps of 8
μA from 0 to 256μA with a process error of 30%.
2. Temperature coefficient is not important since external temperature measurement is a 2 step measurement. The value specified is
guaranteed by design and will not be tested in production.
3. Maximum voltage on pin ETR (reference) can be calculated by given formula, where G is the gain of PGA (G=100).
4. Maximum voltage on pin ETR, if PGA is bypassed.
5. Maximum voltage on pin ETS, if PGA is bypassed.
6.4.6 CMREF Circuit (VCM)
6.4.7 Internal AVDD Power-on Reset
Table 19. External Temperature Measurement
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ICURON
5-bit current source enabled
1
5-bit programmable current source
0
270
320
A
ICUROFF
5-bit current source disabled
Limited by leakage
10
nA
TK_CS
Temperature coefficient of current source
2
1000
ppm
/ K
VMAXETR
Voltage on pin ETR
3
1000/G
mV
VMAXETRMOD
Max voltage on pin ETR when PGA is
bypassed
4
1.22
V
VMAXETS
Voltage on pin ETS for resistor sensor
3
1000/G
V
VMAXETSMOD
Max. Voltage on pin ETS when PGA is
bypassed
5
1.22
V
Table 20. CMREF Circuit
Symbol
Parameter
Min
Typ
Max
Units
VVCM
Output voltage
1.6
1.7
1.8
V
CL
Load capacitance
100
nF
Table 21. Internal AVDD Power-on Reset
Symbol
Parameter
Min
Typ
Max
Units
V
PORHIA
Power On Reset Threshold
2.2
2.4
2.6
V
t
PORA
POR time - The duration from Power ON till
the time, internal Power On Reset signal
goes HIGH
1
1. POR pulse is always longer than tPORA whatever the slope of the supply.
1s
I
PORA
Current consumption in POR block
2
2. I
PORA can not be switched off.
1.5
A
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