LNBH26S datasheet(21/35 Pages) STMICROELECTRONICS

21 / 35 page

Bit

Name

Value

Description

Bit 6

OTF

A/B

Junction overtemperature is detected, TJ > 150 °C (typ.).

See also the THERM bit setting

Junction overtemperature not detected, TJ <135 °C (typ.).

TJ is below thermal protection threshold

Bit 7 (MSB)

PNG

Input voltage (VCC pin) is lower than LPD minimum

thresholds. Refer to Table 12. A/B section electrical

characteristics.

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

Value

Description

Bit 0 (LSB)

TDET-A

22 kHz tone presence is detected on the DETIN pin

No 22 kHz tone is detected on the DETIN pin

Bit 1

TDET-B

22 kHz tone presence is detected on the DETIN pin

No 22 kHz tone is detected on the DETIN pin

Bit 2

TMON-A

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

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

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

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

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

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

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

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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