TLE7237GS Infineon Technologies, TLE7237GS Datasheet - Page 13

• Manufacturer Part Number: TLE7237GS
• Description: IC DRIVER SPI 8CH HS/LS 24-SSOP
• Manufacturer: Infineon Technologies
• Type: High Side/Low Side Driverr

Specifications of TLE7237GS

• Input Type: SPI
• Number Of Outputs: 8
• On-state Resistance: 900 mOhm
• Current - Peak Output: 1A
• Voltage - Supply: 9 V ~ 28 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• Other names: SP000297867

5
The TLE7237GS is supplied by two supply voltages
feed and used by the power switches and by an integrated power supply for the register banks. There is an under
voltage reset function implemented for the
are reset to their default values and the device is in sleep mode (standby). The SPI command CMD.WAKE = 1 is
switching the device to operation mode (ON), while a command CMD.STB = 1 send the device to sleep mode
(standby) again.
The
daisy chain function is available as soon as
between pins
The device provides a sleep mode (stand by) to minimize current consumption, which also resets the register
banks. It is entered and left by dedicated SPI commands or by turning off the VDD supply.
5.1
There are several reset trigger implemented in the device. A reset switches off all channels and sets the registers
to default values. After any kind of reset, the transmission error flag (TER) is set.
Under Voltage Reset:
During this device condition a read on SPI always delivers the Standard Diagnostic Frame with a TER flag.
This under voltage reset is released when all the supply voltages levels are above under voltage threshold.
Reset Command: There is a reset command available to reset all register bits of the register bank and the
diagnosis registers. As soon as CMD.RST = 1, a reset is triggered.
Data Sheet
V
DD
supply line is used by the SPI shift register related circuitry and for driving the SO line. As a result, the
Power Supply
Reset
V
DD
and GND is recommended (especially in case of EMI).
V
V
bb
DD
power supply. After start-up of the power supply, all SPI registers
is provided in the specified range independent of
V
bb
13
and
V
DD
. The
V
bb
supply line is connected to a battery
Rev. 1.0, 2008-10-30
V
TLE7237GS
Power Supply
bb
. A capacitor