TLE75602-ESD datasheet(23/70 Pages) INFINEON

23 / 70 page

Datasheet

Rev. 1.0

2017-11-23

TLE75602-ESD

SPIDER+ 12V

Power Supply

6.1.4

Active mode

Active mode is the normal operation mode of TLE75602-ESD when no Limp Home condition is set and it is

necessary to drive some or all loads. Voltage levels of VDD and VS influence the behavior as described at the

beginning of Chapter 6. Device current consumption is specified with IVDD(ACTIVE) and IVS(ACTIVE) (IACTIVE for the

whole device). The device enters Active mode when IDLE pin is set to “high” and one of the input pins is set to

“high” or one OUT.OUTn bit is set to “1”. If HWCR.ACT is set to “0”, the device returns to Idle mode as soon

as all inputs pins are set to “low” and OUT.OUTn bits are set to “0”. If HWCR.ACT is set to “1”, the device

remains in Active mode independently of the status of input pins and OUT.OUTn bits. An undervoltage

condition on VDD supply brings the device into Idle mode, if all input pins are set to “low”. Even if the registers

MAPIN0 and MAPIN1 are both set to “00H” but one of the input pins INn is set to “high”, the device goes into

Active mode.

6.1.5

Limp Home mode

TLE75602-ESD enters Limp Home mode when IDLE pin is “low” and one of the input pins is set to “high”,

switching ON the channel connected to it. SPI communication is possible but only in read-only mode (SPI

registers can be read but cannot be written). More in detail:

• UVRVS and LOPVDD are set to “1”

• MODE bits are set to “01B” (Limp Home mode)

• TER bit is set to “1” on the first SPI command after entering Limp Home mode. Afterwards it works

normally

• OLOFF bits is set to “0”

• ERRn bits work normally

• DIAG_OSM.OUTn bits can be read and work normally

• All other registers are set to their default value and cannot be programmed as long as the device is in Limp

Home mode

See Table 6 for a detailed overview of supply voltage conditions required to switch ON channels 2 and 3 during

Limp Home. All other channels are OFF.

A transmission of SPI commands during transition from Active to Limp Home mode or Limp Home to Active

mode may result in undefined SPI responses.

6.1.6

Definition of Power Supply modes transition times

The channel turn-ON time is as defined by parameter tON when TLE75602-ESD is in Active mode or in Limp

Home mode. In all other cases, it is necessary to add the transition time required to reach one of the two

aforementioned Power Supply modes (as shown in Figure 14).

TLE75602-ESD Datasheet(PDF) 23 Page - Infineon Technologies AG