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| 型號(hào)： | TPIC8300IPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | PLASTIC, TSSOP-16 |
| 文件頁(yè)數(shù)： | 46/47頁(yè) |
| 文件大小： | 546K |
| 代理商： | TPIC8300IPWRQ1 |
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Over Pressure
Input
(differential)
VIHS
Negative Pressure
Comparator Output
Output
DIAG
Acknowledge
Time
Deglitch time
SLDS171 – NOVEMBER 2009
www.ti.com
Programmable Input Over-Level Detection
Table 2. Input Over-Level Detection Ranges
PARAMETER
MIN
MAX
NOTE
Pressure range
-19.94 mV
-6.93 mV
VSIP – VSIN TRHSGAIN = 5
Programmable threshold level
-21.35 mV
-7.43 mV
TRHSGAIN = 4
Deglitch filter time
0.8 ms
3.2 ms
EEPROM programmable
Programmable step size
0.93 mV
TRHSGAIN = 4
Figure 2. Detection of Negative Pressure Condition
Power Sequence
Power Up
The IC starts functioning if Vcc is more than UVcc + HVcc (~4 V).
Power on reset for digital circuit is ~2.5 V.
EEPROM data loaded to registers
DO is held low for ~10 ms.
Power Down
When Vcc is less than UVcc, disable DO.
Glitch on Vcc
Deglitch time : 320 ns (typical)
Functionality during the glitch : disable DO
Functionality after Vcc recovery: same as the Power up. EEPROM data is reloaded to registers if the glitch is
lower than 2.5 V (typ).
8
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TPIC83000-Q1
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