Cirrus-logic CS1631 Uživatelský manuál stáhnout pdf (Strana 50)

CS1630/31

50 DS954F3

6.43 Configuration 62 (Config62) – Address 94

6.44 CRC Tag (CRC_TAG)

– Address 102

CRC Tag register used by the communication system. To activate the use of this register the CRC bit must be

programmed to ‘1’ (see "Configuration 38 (Config38) – Address 70" on page 39). The correct CRC value is ob-

tained by computing the CRC for all the registers from address 0 through 95. This includes all the reserved set-

tings which have been factory programmed.

76543210

CH2_OFF2 CH2_OFF1 CH2_OFF0 CH1_OFF2 CH1_OFF1 CH1_OFF0 BST_LLP1 BST_LLP0

Number Name Description

[7:5] CH2_OFF[2:0]

Sets fixed offset delay for ZCD comparator and other path delays in order to

get correct T2 measurements for channel 2. Adjusting CH2_OFF[2:0] correctly

is necessary to achieve accurate and predictable output currents across the

entire dimming range.The offset delay is given by:

[4:2] CH1_OFF[2:0]

Sets fixed offset delay for ZCD comparator and other path delays in order to

get correct T2 measurements for channel 1. Adjusting CH1_OFF[2:0] correctly

is necessary to achieve accurate and predictable output currents across the

entire dimming range. The offset delay is given by:

[1:0] BST_LLP[1:0]

Sets the minimum value V

LLPMin(th)

by which the boost output voltage needs to

be below the AC line voltage to trigger an LLP fault.

00 = 80V for 120V applications; 160V for 230V applications

01 = 40V for 120V applications; 80V for 230V applications

10 = 20V for 120V applications; 40V for 230V applications

11 = 10V for 120V applications; 20V for 230V applications

76543210

CH2_OFF[2:0] 50ns

CH1_OFF[2:0] 50ns

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 56

Žádné komentáře

Cirrus-logic CS1631 Uživatelský manuál Strana 50