TLE7188F datasheet(22/28 Pages) INFINEON

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TLE7188F

Shunt Signal Conditioning

Data Sheet

V2.1, 2007-06-20

5.3.1

Electrical Characteristics

Electrical Characteristics - Current sense signal conditioning

S = 5.5 to 20V, Tj = -40 to +150°C, FPWM < 25kHz, all voltages with respect to ground, positive current flowing into pin

(unless otherwise specified)

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

5.3.1

Series resistors

100

500

1000

Ω

–

5.3.2

Feedback resistor

Limited by the output voltage

dynamic range

2000

7500

–

Ω

–

5.3.3

Resistor ratio (gain ratio)

fb/RS

5–15

–

5.3.4

Steady state differential input

voltage range across VIN1)

IN(ss)

-400

–

400

–

5.3.5

Input differential voltage (ISPx -

ISNx)

IDR

-800

–

800

–

5.3.6

Input voltage (Both Inputs - GND)

(ISP - GND) or (ISN -GND)

-800

–

2000

–

5.3.7

Input voltage (Both Inputs - GND)

(ISP - GND) or (ISN -GND)

-800

–

1500

Vs=5.5V

5.3.8

Absolute input offset voltage of the

I-DC link OpAmp, including drift

over temperature range

––2mV

RS=500Ω; VCM=0V;

VO=1.65V;

VRI=1.65V

5.3.9

Input offset voltage difference of

the I-DC link OpAmps, including

drift over temperature range

––+/-1

RS=500Ω; VCM=0V;

VO=1.65V;

VRI=1.65V

5.3.10

Absolute input offset voltage of

reference buffer

––3mV

–

5.3.11

VRI input range

1.2

–

2.8

–

5.3.12

Input bias current

-300

–

µA

VCM=0V; VO=open

5.3.13

High level output voltage of VOx

4.8

–

5.2

IOH=-2mA;

Vs=6V

5.3.14

Low level output voltage of VOx

-0.1

–

0.2

IOH=3mA

5.3.15

Output voltage of VOx

VRI= 2.5V,

VRI=1.65V,

2.467

1.617

2.50

1.65

2.533

1.683

VIN(SS)=0V;

Gain=15;

Tj=25°C

5.3.16

Output short circuit current

5––mA

–

5.3.17

Differential input resistance2)

100

––k

Ω

–

5.3.18

Common mode input capacitance2)

––10

10kHz

5.3.19

Common mode rejection ratio at

CMRR =

20*Log((Vout_diff/Vin_diff) *

(Vin_CM/Vout_CM))

MRR

––db

–

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