LNBH26

Electrical characteristics

Doc ID 022771 Rev 1

29/38

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Tone frequency

DSQIN=High, EXTM=0, TEN=1

20

22

24

kHz

Tone duty cycle

43

50

57

%

tr, tf

5

8

15

µs

93

%

DC-DC converter switching

frequency

440

kHz

UVLO

Undervoltage lockout thresholds

UVLO threshold rising

4.8

V

UVLO threshold falling

4.7

Low power diagnostic (LPD)

thresholds

7.2

V

6.7

DSQIN, pin logic low

0.8

V

DSQIN, pin logic high

2

V

DSQIN, pin input current

15

µA

Tone detector frequency capture

range

(3)

19

22

25

kHz

Tone detector input amplitude

Sine wave signal, 22 kHz

0.3

1.5

Tone detector input impedance

150

k

Ω

DSQOUT, FLT pins logic LOW

0.3

0.5

V

W

BPSW pin low voltage

DSQIN = high, EXTM = 0, TEN = 1

0.7

V

DSQOUT, FLT pins leakage

current

10

µA

Output backward current

-3

-6

mA

Output low-side sink current

70

mA

E-OUT

Low-side sink current time-out

PDO I²C bit is set to 1 after this time is

elapsed.

10

ms

Max. reverse current

2mA

Thermal shutdown threshold

150

°C

15

°C

1.

account in the application thermal management design.

2.

Guaranteed by design.

3.

Frequency range in which the DETIN function is guaranteed. The Vpp level is intended on the LNB bus (before the C6

Table 13.

Electrical characteristics of section A/B (continued)