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LNBH26S 数据表(PDF) 21 Page - STMicroelectronics

部件名 LNBH26S
功能描述  Dual LNBS supply and control I2C with step-up and IC interface
PDF  35 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LNBH26S 数据表(HTML) 21 Page - STMicroelectronics

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Bit
Name
CH
Value
Description
Bit 6
OTF
A/B
1
Junction overtemperature is detected, TJ > 150 °C (typ.).
See also the THERM bit setting
0
Junction overtemperature not detected, TJ <135 °C (typ.).
TJ is below thermal protection threshold
Bit 7 (MSB)
PNG
1
Input voltage (VCC pin) is lower than LPD minimum
thresholds. Refer to Table 12. A/B section electrical
characteristics.
0
Input voltage (VCC pin) is higher than LPD thresholds.
Refer to Table 12. A/B section electrical characteristics.
N/A = reserved bit
All bits reset to 0 at power-on
Table 11. STATUS 2 (read register. Register address = 0X1)
Bit
Name
CH
Value
Description
Bit 0 (LSB)
TDET-A
A
1
22 kHz tone presence is detected on the DETIN pin
0
No 22 kHz tone is detected on the DETIN pin
Bit 1
TDET-B
B
1
22 kHz tone presence is detected on the DETIN pin
0
No 22 kHz tone is detected on the DETIN pin
Bit 2
TMON-A
A
1
22 kHz tone present on the DETIN pin is out of TMON
specification thresholds. That is: the tone frequency or the
ATONE (tone amplitude) are out of the thresholds
guaranteed in Table 18. 22 kHz tone diagnostic (TMON-
A/B bit, STATUS 2 register) characteristics
0
22 kHz tone present on the DETIN pin is within TMON
specification thresholds. Refer to Table 18. 22 kHz tone
diagnostic (TMON-A/B bit, STATUS 2 register)
characteristics
Bit 3
TMON-B
B
1
22 kHz tone present on the DETIN pin is out of TMON
specification thresholds. The tone frequency or the ATONE
(tone amplitude) is out of the thresholds guaranteed in
Table 18. 22 kHz tone diagnostic (TMON-A/B bit, STATUS
2 register) characteristics
0
22 kHz tone present on DETIN pin is within TMON
specification thresholds. Refer to Table 18. 22 kHz tone
diagnostic (TMON-A/B bit, STATUS 2 register)
characteristics
Bit 4
IMON-A
A
1
Output current (from VOUT pin) is lower than IMON
specification thresholds. Refer to Table 17. Output current
diagnostic (IMON-A/B bits, STATUS 2 register)
characteristics
0
Output current (from VOUT pin) is higher than IMON
specifications. Refer to Table 17. Output current diagnostic
(IMON-A/B bits, STATUS 2 register) characteristics
Bit 5
IMON-B
B
1
Output current (from VOUT pin) is lower than IMON
specification thresholds. Refer to Table 17. Output current
diagnostic (IMON-A/B bits, STATUS 2 register)
characteristics
0
Output current (from VOUT pin) is higher than IMON
specifications. Refer to Table 17. Output current diagnostic
(IMON-A/B bits, STATUS 2 register) characteristics
LNBH26S
Status registers
DS8975 - Rev 5
page 21/35



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