TLE6262G Datasheet, PDF (11/38 Pages) Infineon Technologies AG – Fault Tolerant CAN - LDO

Final Data TLE 6262 G
This is flagged by the SPI diagnosis bit 3. Moreover the switches are disabled when a
reset occurs.
High Side Switch 2
The high side output OUTH2 is able to switch loads up to 250 mA. Its on-resistance is
1.0 W typ. @ 25°C. This switch is controlled via the SPI input bit 2.
The SPI diagnosis bit 14 monitors a thermal shutdown of the switches, whereas bit 0
flags a thermal prewarning. By this the microcontroller is able to reduce the power
dissipation of the TLE 6262 by switching off functions of minor priority before the
temperature threshold of the thermal shutdown is reached. As soon as the under-voltage
condition of the supply voltage is met (V_S < V_UVOFF), the switches are automatically
disabled by the under-voltage lockout circuit. This is flagged by the SPI diagnosis bit 3.
Moreover the switches are disabled when a reset occurs.
High Side Switch 3
The high side output OUTH3 is able to switch loads up to 150 mA. Its on-resistance is
1.5 W typ. @ 25°C. This switch is controlled via the SPI input bits 3 and 4. To supply
external wake-up circuits in low power mode (sleep mode or Vbat-stand-by mode), the
output OUTH3 can be periodically activated by the internal oscillator circuit. For
activating this feature the SPI input bits 3 and 4 have to be set HIGH. The autotiming
period is 128 internal cycle times; the on-time is 2 cycles. In case of a watchdog reset
the autotiming period may be shorter.
The SPI diagnosis bit 14 monitors a thermal shutdown of the switches, whereas bit 0
flags a thermal prewarning. By this the microcontroller is able to reduce the power
dissipation of the TLE 6262 by switching off functions of minor priority before the
temperature threshold of the thermal shutdown is reached. As soon as the under-voltage
condition of the supply voltage is met (V_S < V_UVOFF), the switches are automatically
disabled by the under-voltage lockout circuit. This is flagged by the SPI diagnosis bit 3.
Moreover the switches are disabled when a reset occurs.
Low Side Switches 1/2
The two low side outputs OUTL1 and OUTL2 are able to switch loads up to 100 mA.
Their on-resistance is 1.5 W (typ.) @ 25°C. This switches are controlled via the SPI input
bits 5 and 6. In case of high inrush currents a built in zener circuit (typ. 37 V) activates
the switches to protect them.
The SPI diagnosis bit 14 monitors a thermal shutdown of the switches, whereas bit 0
flags a thermal prewarning. By this the microcontroller is able to reduce the power
dissipation of the TLE 6262 by switching off functions of minor priority before the
temperature threshold of the thermal shutdown is reached. The SPI diagnosis bits 5/6
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version: 2.03 date: 2002-03-20