L9966 datasheet(28/122 Pages) STMICROELECTRONICS

28 / 122 page

Figure 14. IOx configuration: IO1 driven through IO3 (stuck @ GND), Pull Up to VPRE, 5 mA, MODE=1

GADG0501181251PS

6.4

Binary Lambda mode

IO[12:9] present additional capabilities for the use of binary lambda sensors. By setting LSF_MDx(x = 9:12)

in DWT_VOLT_SRC_LSF_CTRL, it is possible to activate binary lambda mode to control PU5V/PUVVAR

configuration through the control source defined in CIS[3:0].

Every writing access to DWT_VOLT_SRC_LSF_CTRL has impact on IOx configuration. For IO[12:9], the

configuration is automatically reset: in case LSF_MD_x=1, default configuration is 250 µA PU VDD5; in case

LSF_MD_x=0, default configuration is HiZ.

The only selectable currents when binary lambda mode is active are reported in Table 17.

Table 17. Lambda IO current values

Symbol

Parameter

Condition

Min

Typ

Max

Unit

UBSW = 7.5 V:36 V, VDD5V = 4.85 V:5.15 V, Tj-max = 150 °C unless otherwise specified.

Ipu_7_VVAR Pull up current

Current source code [CV2,CV1,CV0]=111, pull-up current to VVAR

µA

IO9-12

Ipu_6_VVAR Pull up current

Current source code [CV2,CV1,CV0]=110, pull-up current to VVAR

µA

IO9-12

Ipu_5_VVAR Pull up current

Current source code [CV2,CV1,CV0]=101, pull-up current to VVAR

-50%

+50%

µA

IO9-12

Ipu_4_VVAR Pull up current

Current source code [CV2,CV1,CV0]=100, pull-up current to VVAR

-50%

+50%

µA

IO9-12

Ipu_7_5V

Pull up current

Current source code [CV2,CV1,CV0]=111, pull-up current to 5V_REF

-10% 500 +10%

µA

IO9-12

Ipu_6_5V

Pull up current

Current source code [CV2,CV1,CV0]=110, pull-up current to 5V_REF

-20% 250 +20%

µA

IO9-12

Ipu_5_5V

Pull up current

Current source code [CV2,CV1,CV0]=101, pull-up current to 5V_REF

-10% 500 +10%

µA

IO9-12

Ipu_4_5V

Pull up current

Current source code [CV2,CV1,CV0]=100, pull-up current to 5V_REF

-20% 250 +20%

µA

IO9-12

L9966

Binary Lambda mode

DS12459 - Rev 10

page 28/122

L9966 bảng dữ liệu(PDF) 28 Page - STMicroelectronics

L9966 bảng dữ liệu(HTML) 28 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 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL