TLE6240GP

Smart 16-Channel Low-Side Switch

Electrical and Functional Description of Blocks

Data Sheet

12

Rev.3.3, 2010-02-15

5

Electrical and Functional Description of Blocks

The TLE6240GP is an 16-fold low-side power switch which provides a serial peripheral interface (SPI) to control

the 16 power DMOS switches, and diagnostic feedback. The power transistors are protected against short to

V

overload, overtemperature and against overvoltage by active zener clamp.

The diagnostic logic recognizes a fault condition which can be read out via the serial diagnostic output (SO).

5.1

Power Supply & Reset

RESET - Reset pin. If the reset pin is in a logic low state, it clears the SPI shift register and switches all outputs

OFF. An internal pull-up structure is provided on chip. In case the RESET Pin is pulled down statically, the device

remains in Stand-by Mode

5.2

Digital Inputs

In this chapter is the electrical behavior of the following Digital Input Pins described:

•

parallel Input Pin INx

•

Reset Pin RESET

•

Program Pin PRG

Electrical Characteristics: Power Supply

V

all voltages with respect to ground, positive current flowing into pin

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

5.1.1

1) For

V

undervoltage reset gets active at

V

V

S

4.5

–

5.5

V

–

5.1.2

Supply Current

I

S

–5

10

mA

–

5.1.3

Supply Current in Standby Mode

I

S(stdy)

–10

50

µA

(RESET = L)

Electrical Characteristics: Digital Inputs

V

all voltages with respect to ground, positive current flowing into pin

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

5.2.1

Input Low Voltage

V

INL

-0.3

–

1.0

V

–

5.2.2

Input High Voltage

V

INH

2.0

–

–

V

–

5.2.3

Input Voltage Hysteresis

V

INHys

50

100

200

mV

–

5.2.4

Input Pull-down/up Current

(IN1 to IN4, IN9 to IN12)

I

50

100

µA

V

5.2.5

PRG, Reset Pull-up Current

I

50

100

µA–

5.2.6

Minimum Reset Duration

(After a reset all parallel inputs are

ORed with the SPI data bits)

t

Reset,min

10

–

–

µs–