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| TLE7826G Datasheet, PDF (10/53 Pages) Infineon Technologies AG – Integrated double low-side switch, high-side/LED driver, hall supply, wake-up inputs and LIN communication with embedded MCU (32kB Flash) | |||
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TLE7826G
Operating Modes
4
Operating Modes
The TLE7826G incorporates several SBC operating modes, that are listed in Table 1.
Table 1 SBC Operating Modes
Functional Block
SBC Standby
Mode
SBC Active Mode SBC Stop Mode SBC Sleep Mode
VCC, 5 V, LDO
Window Watchdog
Monitoring / wake-up pins
ON
ON
ON / OFF3)
ON
ON
SPI-controlled
ON
OFF / ON1)2)
ON / OFF3)
OFF
OFF / ON2)
ON / OFF3)
LS1,LS2 -switch
Supply Output
OFF
ON / OFF3)
SPI-controlled
SPI-controlled
OFF
ON / OFF3)
OFF
OFF
HS-LED
OFF
SPI-controlled
OFF
OFF
16-bit SPI
ON
ON
ON
OFF
LIN wake-up via bus
ON
OFF
ON
ON
message
LIN Transmit
OFF
ON
OFF
OFF
LIN Receive
OFF
ON
OFF
OFF
RxD
Active low wake-up L / H
Active low wake-up Active low wake-up
interrupt
interrupt
interrupt
Measurement I/F
OFF
SPI-controlled
OFF
OFF
VAREF
OFF
ON (2.5V)
OFF
OFF
Voltage Monitoring at VS OFF
ON
and VBAT
OFF
OFF
1) WD âoffâ when voltage-regulator output current below âwatchdog disable current thresholdâ
2) WD default âoffâ in SBC Stop / Sleep Mode; WD can be active in order to generate period wake-ups of SBC
3) âON / OFFâ state is inherited from previous operating mode (âOFFâ after POR and RESET)
The System-Basis-Chip (SBC) offers several operation modes that are controlled via three mode select bits MS0,
MS1 and MS2 within the SPI: SBC Active, Sleep and Stop mode, as well as LIN Receive-Only mode.
An overview of the operating modes and the operating mode transitions is indicated in Figure 4 below.
Note: It is possible to directly change from Stand-By to Stop or Sleep mode, however this might result in a higher
current consumption (~200µA). The higher current consumption will occur in case of a power up and in case
of a LIN wake-up from Stop and Sleep mode. To avoid this conditions its recommended to prior set Active
mode before changing to Stop or Sleep mode.
Data Sheet
10
Rev. 3.01, 2008-04-15
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