TLE6220GPNT Infineon Technologies, TLE6220GPNT Datasheet - Page 6

• Manufacturer Part Number: TLE6220GPNT
• Manufacturer: Infineon Technologies

Specifications of TLE6220GPNT

• Switch Type: Low Side
• Power Switch Family: TLE6220GP
• Input Voltage: -0.3 to 7V
• Power Switch On Resistance: 320mOhm
• Output Current: 3A
• Number Of Outputs: 4
• Mounting: Surface Mount
• Supply Current: 1mA
• Package Type: DSO
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 22
• Power Dissipation: 3W
• Lead Free Status / Rohs Status: Compliant

Functional Description
The TLE 6220 GP is an quad-low-side power switch which provides a serial peripheral interface
(SPI) to control the 4 power DMOS switches, as well as diagnostic feedback. The power transi s -
tors are protected against short to V
an active zener clamp.
The diagnostic logic recognises a fault condition which can be read out via the serial diagnostic
output (SO).
Circuit Description
Power Transistor Protection Functions
Each of the four output stages has its own zener clamp, which causes a voltage limitation at the
power transistor when solenoid loads are switched off. The outputs are provided with a current
limitation set to a minimum of 3 A. The continuous current for each channel is 1A (all channels
ON; depending on cooling).
Each output is protected by embedded protection functions. In the event of an overload or
short to supply, the current is internally limited and the corresponding bit combination is set
(early warning). If this operation leads to an overtemperature condition, a second protection
level (about 170 °C) will change the output into a low duty cycle PWM (selective thermal shut-
down with restart) to prevent critical chip temperatures.
SPI Signal Description
pin. Whenever the pin is in a logic low state, data can be transferred from the µC and vice
versa.
To avoid any false clocking the serial clock input pin SCLK should be logic low state during high
to low transition of CS . When CS is in a logic high state, any signals at the SCLK and SI pins
are ignored and SO is forced into a high impedance state.
9 )
or permanently
V2.1
CS - Chip Select. The system microcontroller selects the TLE 6220 GP by means of the CS
CS High to Low transition: - Diagnostic status information is transferred from the power
CS Low to High transition: - Transfer of SI bits from shift register into output buffers
The integrated protection functions prevent an IC destruction under fault conditions and may not be used in normal operation
.
state corresponding to the SO bits.
- Reset of diagnosis register.
- Serial input data can be clocked in from then on.
- SO changes from high impedance state to logic high or low
outputs into the shift register.
BB
, overload, overtemperature and against overvoltage by
9)
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Data Sheet TLE 6220 GP
2007-05-03