L99UDL01 datasheet(69/88 Pages) STMICROELECTRONICS

69 / 88 page

DS12511 Rev 5

69/88

L99UDL01

Programmers guide

EXTx_VDSx

These bits set up the Drain-Source voltage fault threshold for the external bridges. If the

Drain-Source voltage exceeds the programmed value (EXTx_VDSx, see Table 43) for

longer than the VDS filtering time (tVDS_FILTER) the output is disabled and a fault code is set.

Table 43 contains only typical values. Refer to parameter VDS_TH Step tolerance (D.044) for

worst case tolerances. The default setting is 1011 (1.0V).

At turn on, there is an additional programmable VDS fault blanking time (EXTx_VDtx). In

this case, starting from a turn on command, the delay includes the VDS fault filter time plus

the programmed blanking time (i.e. tVDS_FILTER + EXTx_VDtx).

Figure 22. 06H external bridge VDS monitor and control register

OC1

OC2

D 15 D 14 D 13 D 12 D 11 D 10

D 9

D 8

D 7

D 6

D 5

D 4

D 3

D 2

D 1

D 0

00110

Default Values

0000

0001011101

Table 43. 06H Register bit description

Bit No.

Function

Level

HBDCL2

H-Bridge 2 diagnostic current Sink

HBDCH2

H-Bridge 2 diagnostic current Source

STBY1

Standby Activation bit 1

EXT2_VDt_1

External Bridge 2 VDS Blanking time bit 1

EXT2_VDt_0

External Bridge 2 VDS Blanking time bit 0

EXT1_VDt_1

External Bridge 1 VDS Blanking time bit 1

EXT1_VDt_0

External Bridge 1 VDS Blanking time bit 0

EXT2_VDS_3

External Bridge 2 Drain-Source threshold bit 3

EXT2_VDS_2

External Bridge 2 Drain-Source threshold bit 2

EXT2_VDS_1

External Bridge 2 Drain-Source threshold bit 1

EXT2_VDS_0

External Bridge 2 Drain-Source threshold bit 0

EXT1_VDS_3

External Bridge 1 Drain-Source threshold bit 3

EXT1_VDS_2

External Bridge 1 Drain-Source threshold bit 2

EXT1_VDS_1

External Bridge 1 Drain-Source threshold bit 1

EXT1_VDS_0

External Bridge 1 Drain-Source threshold bit 0

0 LSB

Parity

L99UDL01 Datasheet(PDF) 69 Page - STMicroelectronics

L99UDL01 Datasheet(HTML) 69 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88

Datasheet Download

Link URL