TLE4971-A075N5-U-E0001

TLE4971 high precision coreless current sensor for

automotive applications in 8x8mm SMD package

Description

Features & Benefits

TLE4971 is a high precision miniature coreless

magnetic current sensor for AC and DC

measurements with analog interface and two fast

over-current detection outputs.

Infineon's well-established and robust monolithic

Hall technology enables accurate and highly linear

measurement of currents with a full scale up to

±120A. The sensor is equipped with internal self-

diagnostic feature.

• Integrated current rail with typical 220µΩ insertion

resistance enables ultra-low power loss

• Less than 1nH parasitic inductance

• Smallest form factor, 8x8mm SMD, for easy

integration and board area saving

• High accurate, scalable, DC & AC current sensing

• 210kHz bandwidth enables wide range of

applications

• Very low sensitivity error over temperature

• Galvanic functional isolation up to 1150V peak V_IORM

s

Typical applications are Onboard Chargers as well

as any kind of Drives.

The differential measurement principle allows

great stray field suppression for operation in

harsh environments.

Two separate interface pins (OCD) provide a fast

output signal in case a current exceeds a pre-set

threshold.

The sensor is shipped as a fully calibrated product

without requiring any customer end-of-line

calibration.

All user-programmable parameters such as OCD

thresholds, blanking times and output configuration

modes are stored in an embedded EEPROM

memory.

Coreless current sensor in PG-TISON-8 package

Order Information

Product Name

Product Type

Marking

Ordering Code Package

TLE4971-A120N5-E0001 120A range

H71E1A1_N SP005737183

PG-TISON-8-5

SP005737179

SP005737136

SP005737132

SP005737204

SP005737200

SP005737196

SP005737188

TLE4971-A075N5-E0001 75A range

H71E3A1_N

H71E4A1_N

H71E6A1_N

H71E1A1UN

H71E3A1UN

H71E4A1UN

H71E6A1UN

TLE4971-A050N5-E0001 50A range

TLE4971-A025N5-E0001 25A range

TLE4971-A120N5-U-E0001 120A range, UL-certified

TLE4971-A075N5-U-E0001 75A range, UL-certified

TLE4971-A050N5-U-E0001 50A range, UL-certified

TLE4971-A025N5-U-E0001 25A range, UL-certified

Datasheet

www.infineon.com

Please read the Important Notice and Warnings at the end of this document

Revision 1.02

19-08-2022

TLE4971

Datasheet

Pin Configuration

Pin configuration

I_PN

Pin No. Symbol Function

VDD

GND Ground

Reference voltage input or

output

Supply voltage

1

2

+

8

-

7

VREF

3

4

1

2

3

4

5

AOUT Analog signal output

6

Over-current detection

OCD1 output 1 (open drain

output)

Over-current detection

OCD2 output 2 (open drain

output)

5

6

Figure 1 Pin layout PG-TISON-8

The current I_PNis measured as a positive value

when it flows from pin 8 (+) to pin 7 (-) through the

integrated current rail.

Negative current terminal

pin (current-out)

Positive current terminal

pin (current-in)

IP-

7

8

IP+

Target Applications

The TLE4971 is suitable for AC as well as DC current measurement applications:

•

On-Board Charger (OBC)

Drives / Servo / Motor Control / Inverter / eScooter / eBike / LEV

Current monitoring

Overload and over-current detection

Due to its implemented magnetic interference suppression, it is extremely robust when exposed to external

magnetic fields. The device is suitable for fast over-current detection with a configurable threshold level.

This allows the control unit to switch off and protect the affected system from damage, independently from

the main measurement path.

Standard Product Configuration

Table 1 Standard Product Configuration

Parameter

TLE4971-A120xxx TLE4971-A075xxx

TLE4971-A050xxx TLE4971-A025xxx

Full scale range ¹⁾

±120A

Semi-differential

1.65V

±75A

Semi-differential

1.65V

±50A

Semi-differential

1.65V

±25A

Semi-differential

1.65V

Output mode

Quiescent voltage

OCD1 threshold

factor ²⁾

1.25

0.82

1.25

0.82

1.25

0.82

1.25

0.82

OCD1 threshold

factor ²⁾

OCD filter time both

channels ²⁾

Ratiometric mode

0µs

No

0µs

No

0µs

No

0µs

No

1) Optional sensitivity values are mentioned in Table 5.

2) Optional OCDx configuration are listed in Table 7 and Table 8.

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TLE4971

Datasheet

Block Diagram

Infrastructure

VDD

GND

IP+

(power, clk, references)

Integrated

current

rail

Bias signal for

Diagnosis Mode

EEPROM

OCD1

OCD2

References

Signal

Diff. Hall

AOUT

VREF

Conditioning

Differential

Hall Plate

Temp

Stress

MUX

Output

Offset

IP-

Figure 2 Block Diagram

General Description

TLE4971 is a high speed precision current sensor. Due to implemented EEPROM various configuration can

be applied without using any external components.

Depending on the selected programming option, the analog output signal can be provided either as:

•

Single-ended

Fully-differential

Semi-differential

In single-ended mode, the pin VREF is used as a reference voltage input. The analog output signal is

provided on pin AOUT.

In fully-differential mode, both AOUT (positive polarity) and VREF (negative polarity) are used as signal

outputs whereas VDD is used as reference voltage input.

In semi-differential mode a chip-internal reference voltage is used and provided on VREF (output).

For fast over-current detection, the raw analog signal provided by the Hall probes is fed into comparators

with programmable switching thresholds.

A user-programmable deglitch filter is implemented to enable the suppression of fast switching transients.

The open-drain outputs of the OCD pins are active “low” and they can be directly combined into a wired-

AND configuration on board level to have a general over-current detection signal.

Programming of the memory can be performed in circuit through a Serial Inspection and Configuration

Interface (SICI). The interface is descripded in detail in the programming guide which can be found on the

Infineon webside.

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TLE4971

Datasheet

Absolute Maximum Ratings

Table 2 Absolute Maximum Ratings

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Note /

Test Condition

Parameter

Symbol Min Typ

Max

Unit

-0.3

-

3.3

-

3.6

6.5

V

Supply voltage

V_DD

duration < 1 minute

Peak, frequency < 10Hz.

Primary nominal rated

current LF¹⁾

Tested on Infinenon reference

PCB (see related application

note: AppNote TLx4971 PCB)

RMS, frequency ≥ 10Hz.

I_PNRLF

-70

-

70

A

Primary nominal rated

current HF²⁾

Tested on Infinenon reference

PCB (see related application

note: AppNote TLx4971 PCB)

I_PNRHF

-70

-

70

A

Single peak for 10µs,

10 assertions per lifetime

Primary current

I_PNS

-250

250

Voltage on interface pins

VREF, OCD1, AOUT

V_IO

-0.3

-

V_DD+ 0.3

21

V

Voltage on Interface pin

OCD2

V_{IO_OCD2}

ESD voltage³⁾

ESD voltage⁴⁾

Voltage slew-rate on

current rail

Maximum junction

temperature

Storage temperature

V_{ESD_HBM}

V_{ESD_SYS}

-2

-

2

kV

-16

16

In the application circuit

Considering continuous

ΔV/dt

-

10

V/ns

T_{j_max}

-

130

150

°C

T_{A_STORE}

-40

Life time

LT

15

-

Years operation with T_S= 70°C

and I = 30 A RMS

1) Tested with primary nominal rated current of 70A peak on Infineon reference PCB at Low Frequency (LF).

Thermal equilibrium reached after 2 min.

2) Tested with primary nominal rated current of 70A rms on Infineon reference PCB at High Frequency (HF).

Thermal equilibrium reached after 2 min.

3) Human Body Model (HBM), according to standard AEC-Q 100-002

4) According to standard IEC 61000−4−2 electrostatic discharge immunity test

Stress above the limit values listed here may cause permanent damage to the device. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability. Maximum ratings are absolute

ratings. Exceeding only one of these values may cause irreversible damage to the integrated circuit.

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Datasheet

Product Characteristics

Table 3 Operating Ranges

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Parameter

Symbol Min. Typ.

Max.

Unit Note / Test Condition

Supply voltage

V_DD

3.1

3.3

3.5

V

Ambient temperature at

soldering point

Measured at soldering point, limited

life time of 8800h

T_S

-40

-

125

°C

Measured at soldering point,

°C Considering 8 years operation at

I = 32 A RMS

Ambient temperature at

soldering point

T_S

-40

-

105

Capacitance on analog

output pin

Capacitor on VDD

W/o decoupling resistor, including

parasitic cap on the board

C_AOUT

C_VDD

V_REF

4.7

6.8

220

1.65

8

-

nF

-

nF

Other values available by EEPROM:

1.2V, 1.5V, 1.8V

Reference input voltage

-

V

Reference input voltage

variation

V_{REF_var}

-10

-

10

%

Table 4 Operating Parameters

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Parameter

Symbol Min. Typ.

Max.

Unit Note / Test Condition

Current consumption

I_DD

-

18

25

mA I(AOUT) = 0mA

25°C, when soldered on PCB with

140µm copper thickness

Primary path resistance

R_PN

-

220

-

µΩ

From V_DDrising above V_DD(min) to full

operation. Output with lower accuracy is

available within 0.5 ms.

Power-on delay time

t_POR

-

1.0

1.5

ms

0A primary input current.

Voltage on interface pin

OCD1

Voltage on interface pin

OCD2

Voltage on analog output

AOUT

V_{IO_OCD1}-0.3

V_{IO_OCD2}-0.3

-

3.5

V

In functional mode

V_AOUT

R_THJS

-0.3

-

V_DD+ 0.3

Current rail to soldering point, on Infineon

reference PCB (see related application note

AppNote TLx4971 PCB)

Thermal resistance¹⁾

0.25

-

K/W

1) Not subject to production test. Verified by design and characterization.

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Datasheet

The quiescent voltage is derived from the supply

pins VDD and GND and has the same value on both

AOUT and VREF:

Functional Output Description

The analog output signal depends on the selected

output mode:

푉_퐷퐷

(

)

(

)

푉_{푄퐴푂푈푇}푉_퐷퐷= 푉_푄푅퐸퐹푉_퐷퐷=

•

Single-ended

2

Fully-differential

Semi-differential

The sensitivity in the fully-differential mode can be

generally expressed as:

푉_퐷퐷

Single-Ended Output Mode

(

)

(

)

푆 푉_{퐷퐷 푑푖푓푓}= 푆 3.3푉

푑푖푓푓

∙

3.3푉

In single-ended mode VREF is used as an input pin

to provide the analog reference voltage, V_REF. The

voltage on AOUT, V_AOUT, is proportional to the

measured current I_PNat the current rail:

In this mode, the quiescent voltages and the

sensitivity are both ratiometric with respect to V_DD

if ratiometricity is enabled.

Semi-Differential Output Mode

(

)

푉

퐴푂푈푇

퐼_푃푁= 푉_푂푄+ 푆 ∙ 퐼_푃푁

In semi-differential output mode, the sensor is

using a chip-internal reference voltage to generate

the quiescent voltage that is available on pin VREF

(used as output).

The quiescent voltage V_OQis the value of V_AOUT

when I_PN=0. V_OQtracks the voltage on VREF

(

)

푉_푂푄푉_푅퐸퐹= 푉_푅퐸퐹

The reference voltage can be set to different

values which allow either bidirectional or

uniderictional current sensing. The possible values

of V_REFNOMare indicated in Table 3.

The analog measurement result is available as

single-ended output signal on AOUT. The

dependence of sensitivity and output offset on

reference voltage is the same as described in

single- ended output mode.

The sensitivity is by default non ratiometric to V_REF.

If ratiometricity is activated the sensitivity

becomes as follows:

The quiescent voltage is programmable at 3

different values, V_{OQbid_1}and V_{OQbid_2}for

bidirectional current and V_OQunifor unidirectional

current (see Table 5).

푉_푅퐸퐹

(

)

푆 푉_푅퐸퐹= 푆(푉_{푅퐸퐹푁푂푀}) ∙

푉_{푅퐸퐹푁푂푀}

Fully-Differential Output Mode

In fully-differential output mode, both VREF and

AOUT are analog outputs to achieve double

voltage swing: AOUT is the non-inverting output,

while VREF is the inverting output:

(

)

푉

퐴푂푈푇

퐼_푃푁= 푉_{푄퐴푂푈푇}+ 푆 ∙ 퐼_푃푁

(

)

푉_푅퐸퐹퐼_푃푁= 푉_푄푅퐸퐹− 푆 ∙ 퐼_푃푁

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TLE4971

Datasheet

Table 5 Analog Output Characteristics

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Note / Test

conditions

Parameter

Symbol Min

Typ

Max

Unit

I_PN= 0A; fully-

differential or semi-

differential

(bidirectional) modes,

standard setting

I_PN= 0A; semi-

differential

Quiescent output voltage

(bidirectional option 1)¹⁾²⁾

V_{OQbid_1}

-

V_DD/2

-

V

Quiescent output voltage

(bidirectional option 2)²⁾

(bidirectional) mode;

for this option the

ratiometricity offset is

disabled

I_PN= 0A; semi-

differential

V_{OQbid_2}

-

1.5

-

V

Quiescent output voltage

(unidirectional mode)²⁾

V_OQuni

V_DD/5.5

(unidirectional) mode

Sensitivity, range1¹⁾²⁾³⁾

Sensitivity, range2²⁾³⁾

Sensitivity, range3²⁾³⁾

Sensitivity, range4²⁾³⁾

Sensitivity, range5²⁾³⁾

Sensitivity, range6²⁾³⁾

Sensitivity ratiometry factor

Quiescent ratiometry factor

S1

S2

S3

S4

S5

S6

K_S

-

10

12

16

24

32

48

1

-

mV/A ±120A FS (Full Scale)

mV/A ±100A FS

mV/A ±75A FS

mV/A ±50A FS

mV/A ±37.5A FS

mV/A ±25A FS

-

K_OQ

1

-

Analog output drive

capability

I_O

-2

-

2

mA

DC current

V_DD-V_AOUT

Output

current = 2mA

-3dB criterion,

C_O= 6.8nF

f_signal= 120kHz

Typical value is at

25°C.

;

Analog output saturation

voltage

V_SAT

BW

-

150

210

300

mV

Transfer function cutoff

frequency

Output phase delay⁴⁾

Output noise density⁵⁾⁶⁾

120

-

kHz

°

φ_delay

-

45

60

I_NOISE

260

660 µA/√Hz

Frequency up to

150kHz. Up to 20mT

homogeneous field

applied

External homogenous

B_SR

34

50

-

dB

magnetic field suppression⁴⁾

1) Pre-configured setting, for other pre-configured versions please contact your local sales.

2) Can be programmed by user (valid only for 120A version).

3) Values refer to semi-differential mode or single-ended mode, with VREF =1.65 V.

In fully-differential mode the sensitivity value is doubled.

4) Not subject to production test. Verified by design and characterization.

5) Typical value in fully-differential mode, sensitivity range S6

푂푢ꢃ푝푢ꢃ 푁ꢄ푖ꢅꢆ [ꢇ

]

1

ꢈꢉꢊ

6) ꢀ표ꢁ푠푒 ꢂ푒푛푠ꢁ푡푦 =

∗

ꢌꢆꢍꢅ푖ꢃ푖푣푖ꢃꢎꢏ^ꢐ_ꢑ

ꢒ

√

^휋∗ 퐵푊[퐻푧]

ꢋ

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TLE4971

Datasheet

Table 5 Analog Output Characteristics (cont’d)

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Parameter

Symbol Min

Typ

Max

Unit Note / Test conditions

Sensitivity error (all

ranges)

E_SENS

-1.5

-

1.5

%

T_S= 25°C, 0h, ±3σ

-2.0

-1.5

-

2.0

1.5

%

T_S= -40°C to 25°C, 0h, ±3σ

T_S= 25°C to 125°C, 0h, ±3σ

Sensitivity error (all

ranges) over temperature

E_SENST

Sensitivity error (all

ranges) over temperature

and lifetime⁴⁾

E_SENSL

-3

-

3

%

Output offset (all ranges)

E_OFF

-180

-230

-

180

230

mA

T_S= 25°C, 0h, ±3σ

T_S= -40°C to 25°C, 0h, ±3σ

T_S= 25°C to 125°C, 0h, ±3σ

Output offset (all ranges)

over temperature

E_OFFT

Output offset (all ranges)

over temperature and

lifetime⁴⁾

E_{OFF_L}

-500

-

500

mA

T_S= 25°C, 0h, ±3σ,

includes linearity error

Total error (S1)

E_{TOT_S1}

-1.7

-2.3

-

1.7

2.3

%

T_S= -40°C to 25°C, 0h, ±3σ,

includes linearity error

Total error (S1) over

temperature

E_{TOT_S1}

T_S= 25°C to 125°C, 0h,

±3σ, includes linearity

error

-1.7

-

1.7

%

T_S= 25°C, 0h, ±3σ,

includes linearity error

T_S= -40°C to 25°C, 0h, ±3σ,

includes linearity error

T_S= 25°C to 125°C, 0h,

±3σ, includes linearity

error

Percentage of FS,

sensitivity S1; includes

sensitivity, offset and

linearity error

Total error (S6)

E_{TOT_S6}

-1.5

-2.3

-

1.5

2.3

%

Total error (S6) over

temperature

E_{TOT_S6}

-1.8

-

1.8

%

Total error over

E_TOTL

-3.45

3.45

temperature and lifetime⁴⁾

4) Not subject to production test. Verified by design and characterization.

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Datasheet

OCD thresholds

Fast Over-Current Detection

(OCD)

The symmetric threshold level of the OCD outputs

is adjustable and triggers an over-current event in

case of a positive or negative over-current. The

possible threshold levels are listed in Table 7 and

Table 8. The instruction for the settings is

documented in the TLI4971 programming guide

and the TLE4971 addendum.

The Over-Current Detection (OCD) function allows

fast detection of over-current events. The raw

analog output of the Hall probes is fed directly into

comparators with programmable switching

thresholds. A user programmable deglitch filter is

implemented to enable the suppression of fast

switching transients. The two different open-drain

OCD pins are active low and can be directly

combined into a wired-AND configuration on

board level to have a general over-current

detection signal. TLE4971 supports two

OCD outputs timing behavior

Both output pins feature a deglitch filter to avoid

false triggers by noise spikes on the current rail.

Deglitch filter settings can be programmed

according to application needs. Available options

are listed in Table 7 and Table 8.

independent programmable OCD outputs, suited

for different application needs.

The OCD pins are providing a very fast response,

thanks to independence from the main signal path.

They can be used as a trap functionality to quickly

shut down the current source as well as for precise

detection of soft overload conditions.

Figure 3 shows the OCD output pin typical

behavior during an over-current event.

Over-current Pulse 1: duration exceeds the over-

current response time t_{D_OCDx}+ response time jitter

Δt_{D_OCDx}+ deglitch filter time t_deglitch. The OCD

output voltage is set low until the current value

drops below the OCD threshold.

OCD pins external connection

The OCD pins can be connected to a logic input pin

of the microcontroller and/or the gate-driver to

quickly react to over-current events. They are

designed as open-drain outputs to easily setup a

wired-AND configuration and allow monitoring of

several current sensors outputs via only one

microcontroller pin.

Over-current Pulse 2: duration does not exceed

the over-current response time t_{D_OCDx}and

therefore no OCD event is generated.

Over-current Pulse 3: duration exceeds the

response time t_{D_OCDx}+ response time jitter

Δt_{D_OCDx}, but does not exceed the glitch filter time

t_deglitchand no OCD event is generated.

B

2 x B_THR

B_THR

1

2

3

t

Glitch

counter

threshold

t

Δt_{D_OCDx}

V_OCD

V_DD

0.5 x V_DD

t

t_{D_OCDx}

t_deglitch

t_{D_OCDx}

t_deglitch

t_{OCD_low}

Δt_{D_OCDx}

t_OC< (t_{D_OCDx}+ Δt_{D_OCDx}

)

t_OC< (t_{D_OCDx}+ Δt_{D_OCDx}+ t_deglitch

)

Figure 3 Fast over-current detection output timing

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Datasheet

Fast Over-Current Detection (OCD) Output Parameters

Table 6 Common OCD Parameters

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C, C_L=1nF.

Parameter

Threshold level tolerance¹⁾

Symbol

Min

Typ

Max

Unit

Note / Test Conditions

I_THT

-10

-

10

%

Type tested

At 3σ, I_rail=2xI_THRx.x, input

rise time 0.1µs

Response time jitter¹⁾

Δt_{D_OCD}

-

0.25

µs

Deglitch filter basic time

Detection minimum time

Load capacitance

t_OCDgl

t_{OCD_low}

C_L

400

500

600

-

ns

µs

3

-

Valid for both OCDs

1

nF

Open-drain current

-

1

mA

kΩ

DC current

To V_DD

Pull-up resistor

R_PU

1

4.7

10

1) Not subject to production test. Verified by design and characterization.

Table 7 OCD1 Parameters

Parameter

Symbol

Min

Typ

Max

Unit

Note / Test Conditions

Factor with respect to I_FS

(I_FS= current full scale

according to programming

i.e. 120A)

Threshold level - Level1^{1)2) 3)}

I_THR1.1

-

1.25

-

x I_FS

Threshold level - Level2¹⁾²⁾

Threshold level - Level3¹⁾²⁾

Threshold level - Level4¹⁾²⁾

Threshold level - Level5¹⁾²⁾

Threshold level - Level6¹⁾²⁾

Threshold level - Level7¹⁾²⁾

Threshold level - Level8¹⁾²⁾

Response time⁴⁾

I_THR1.2

I_THR1.3

I_THR1.4

I_THR1.5

I_THR1.6

I_THR1.7

I_THR1.8

t_{D_OCD1}

t_{f_OCD1}

-

1.39

1.54

1.68

1.82

1.96

2.11

2.25

0.7

-

x I_FS

µs

Factor with respect to I_FS

I_PN= 2*I_THR1.x

-

1

Fall time⁵⁾

100

150

ns

t_deglitch= OCD1_{gl_mul}*t_OCDgl

pre-configured setting = 0

Deglitch filter setting²⁾⁶⁾

OCD1_{gl_mul}

0

-

7

-

1) Symmetric threshold level for positive and negative currents.

2) Can be programmed by user.

3) Pre-configured threshold level

4) Time between primary current exceeding current threshold and falling edge of OCD1-pin at 50%.

5) Not subject to production test. Verified by design and characterization.

6) The specified deglitching timing is valid when input current step overtakes the threshold of at least 10%.

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Datasheet

Table 8 OCD2 Parameters

Parameter

Symbol

Min

Typ

Max

Unit

Note / Test Conditions

Factor with respect to I_FS

(I_FS= current full scale

according to programming

i.e. 120A)

Threshold level - level1¹⁾²⁾

I_THR2.1

-

0.5

-

x I_FSR

Threshold level - level2¹⁾²⁾

Threshold level - level3¹⁾²⁾

Threshold level - level4¹⁾²⁾³⁾

Threshold level - level5¹⁾²⁾

Threshold level - level6¹⁾²⁾

Threshold level - level7¹⁾²⁾

Threshold level - level8¹⁾²⁾

Response time⁴⁾

I_THR2.2

I_THR2.3

I_THR2.4

I_THR2.5

I_THR2.6

I_THR2.7

I_THR2.8

t_{D_OCD2}

t_{f_OCD2}

-

0.61

0.71

0.82

0.93

1.04

1.14

1.25

0.7

-

x I_FSR

µs

Factor with respect to I_FS

I_PN= 2 x I_THR2.x

-

1.2

300

Fall time⁵⁾

200

ns

t_deglitch= OCD2_{gl_mul}x t_OCDgl

pre-configured setting = 0

Deglitch filter setting²⁾⁶⁾

OCD2_{gl_mul}

0

-

15

-

1) Symmetric threshold level for positive and negative currents.

2) Can be programmed by user.

3) Pre-configured threshold level.

4) Time between primary current exceeding current threshold and falling edge of OCD2-pin at 50%.

5) Not subject to production test. Verified by design and characterization.

6) The specified deglitching timing is valid when input current step overtakes the threshold of at least 10%.

Undervoltage / Overvoltage detection

TLE4971 is able to detect undervoltage or overvoltage condition of its own power supply (V_DD). When an

undervoltage (V_DD<U_VLOH) or overvoltage (V_DD>O_VLOH) condition is detected both OCD pins are pulled down in order

to signal such a condition to the user.

The undervoltage detection on OCD pins is performed only if V_DD> V_DD,OCD

.

Both OCD pins are pulled down at start up. When V_DDexceeds the undervoltage threshold U_{VLOH_R}and the power

on delay time t_PORhas been reached, the sensor indicates the correct functionality and high accuracy by releasing

the OCD pins.

Table 9 Operating Parameters

General conditions (unless otherwise specified): V_DD= 3.3V; T_S= -40°C … +125°C

Parameter

Symbol Min.

Typ.

Max.

Unit Note / Test Condition

Supply undervoltage

lockout threshold

U_{VLOH_R}

U_{VLOH_F}

-

2.9

V

V_DDat rising edge

Supply undervoltage

lockout threshold

2.5

-

V_DDat falling edge

V_DDat rising edge

Supply overvoltage lockout

threshold

OCD undervoltage

detection limit

Undervoltage/overvoltage

lockout delay

1) Not subject to production test. Verified by design and characterization.

O_VLOH

V_DD,OCD

t_UVLOe

3.55

1.8

1

-

V

For V_DD<V_DD,OCDundervoltage may not be

performed.

2.4

3.1

µs Enabled to disabled

Datasheet

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Datasheet

Isolation Characteristics

TLE4971 conforms functional isolation.

Table 10 Isolation Characteristics

Parameter

Symbol

Min

Typ Max

Unit Note / Test Conditions

Maximum rated working

voltage (sine wave)¹⁾²⁾³⁾

V_IOWM

V_IOWMP

V_IORM

-

690

975

1150

-

V

RMS, @ 4000m altitude

Peak, @ 4000m altitude

Maximum rated working

voltage (sine wave)¹⁾²⁾³⁾

-

Maximum repetitive

isolation voltage²⁾³⁾

Max DC voltage, spike,

@ 4000m altitude

Apparent charge voltage

capability (method B)²⁾³⁾

Partial discharge < 5pC peak

@ 0m altitude

V_PDtest

1500

Isolation test voltage³⁾⁴⁾

V_ISO

3500

3000

-

V

RMS, 60s

Isolation production test

voltage⁴⁾

RMS, in production,

1.2s, UL certified version

Peak, rise time = 1.2µs,

fall time = 50µs

V_ISOP

Isolation pulse test voltage³⁾

V_pulse

CPG

CLR

6500

-

V

Minimum external creepage

distance

Minimum external clearance

distance

4

mm

Minimum comparative

tracking index

Isolation resistance³⁾

Material

group II

CTI

R_IO

-

10

GΩ

U_IO= 500V DC, 1min

1) The given value is considered an example based on pollution degree 2.

2) After stress test according to qualification plan.

3) Not subject to production test. Verified by design and characterization.

4) Agency type tested for 60 seconds by UL according to UL 1577 standard.

TLE4971 characteristics are tested at VDE according basic isolation as well and a report is available on request.

Datasheet

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Datasheet

System integration

V_{CC_IO}

V_DCLink

IP+

IP-

Load

V_Sens

6

PWM

TLx4971

VDD

GND

Gate-

Driver

220nF

25V

µC

PGND

V_{CC_IO}

V_AREF

EN

V

_AREF= V_Sens

VAREF

GPIO

4k7 ꢀ 4k7 ꢀ

1k ꢀ

1nF

25V

1nF

50V

220nF

25V

6.8nF

25V

220 ꢀ

A/D

15nF 15nF 15nF

25V 25V 25V

6.8nF 6.8nF 6.8nF

25V 25V 25V

Optional low pass filter for bandwidth limitation fc = 48.2kHz

Figure 4 Application circuit for three phase system in single-ended configuration. In-circuit-programming not included.

V_{CC_IO}

V_DCLink

IP-

IP+

Load

6

V_Sens

PWM

_VDDTLx4971

Gate-

Driver

220nF

25V

GND

µC

PGND

V_{CC_IO}V_{CC_IO}

V_AREF

EN

VAREF

GPIO

4k7 ꢀ 4k7 ꢀ

1nF

25V

1nF

50V

220 ꢀ

A/D

6.8nF 6.8nF 6.8nF 6.8nF 6.8nF 6.8nF

25V 25V 25V 25V 25V 25V

15nF 15nF 15nF 15nF 15nF 15nF

25V 25V 25V 25V 25V 25V

Optional low pass filter for bandwidth limitation fc = 48.2kHz

Figure 5 Application circuit for three phase system in differential configuration. In-circuit-programming not included.

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Datasheet

V_{CC_IO}

V_Sens

VDD

GND

VCC

220nF

GND

4k7

GND

µC

TLx4971

220

A/D_in

INTN

VREF

AOUT

OCD1

OCD2

6.8nF 6.8nF 1nF

25V 25V 25V

1nF

50V

15nF

25V

15nF

25V

Optional low pass filter

for bandwidth limitation fc = 48.2kHz

Figure 6 Application circuit with external components. In-circuit-programming not included.

For bandwidth limitation an external filter is recommended as shown in the above application circuits.

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Datasheet

Typical Performance Characteristics

Offset S6 (+/-25A measurement range) error over T

300

250

200

150

100

50

0

-50

-100

-150

-200

-250

-300

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

130

T (°C)

Figure 7 Offset error over T (+/-25A version) with 3 sigma limits in green and 1% limit in dotted blue

Offset S6 (+/-25A measurement range) drift error over T

300

250

200

150

100

50

0

-50

-100

-150

-200

-250

-300

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

T (°C)

Figure 8 After single point calibration: Offset error over T (+/-25A version) with 3 sigma limits in green and 1% limit in dotted

blue

Datasheet

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TLE4971

Datasheet

Offset S1 (+/-120A measurement range) error over T

300

250

200

150

100

50

0

-50

-100

-150

-200

-250

-300

-40 -30 -20 -10

0

10

20

30

40

50

60

70

80

90 100 110 120 130

T (°C)

Figure 9 Offset error over T (+/-120A version) with 3 sigma limits in green

Offset S1 (+/-120A measurement range) drift error over T

300

250

200

150

100

50

0

-50

-100

-150

-200

-250

-300

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

T (°C)

Figure 10 After single point calibration: Offset error over T (+/-120A version) with 3 sigma limits in green

Datasheet

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Datasheet

Sensitivity S6 (+/-25A measurement range) error over T

1,4

1,2

1

0,8

0,6

0,4

0,2

0

-0,2

-0,4

-0,6

-0,8

-1

-1,2

-1,4

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

130

T (°C)

Figure 11 Sensitivity error over T (+/-25A version) with 3 sigma limits in green and 1% limit in dotted blue

Sensitivity S6 (+/-25A measurement range) drift error over T

1,4

1,2

1

0,8

0,6

0,4

0,2

0

-0,2

-0,4

-0,6

-0,8

-1

-1,2

-1,4

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

T (°C)

Figure 12 After single point calibration: Sensitivity error over T (+/-25A version) with 3 sigma limits in green and 1% limit in

dotted blue

Datasheet

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TLE4971

Datasheet

Sensitivity S1 (+/-120A measurement range) error over T

1,8

1,6

1,4

1,2

1

0,8

0,6

0,4

0,2

0

-0,2

-0,4

-0,6

-0,8

-1

-1,2

-1,4

-1,6

-1,8

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

130

T (°C)

Figure 13 Sensitivity error over T (+/-120A version) with 3 sigma limits in green and 1% limit in dotted blue

Sensitivity S1 (+/-120A measurement range) drift error over T

1,4

1,2

1

0,8

0,6

0,4

0,2

0

-0,2

-0,4

-0,6

-0,8

-1

-1,2

-1,4

-40

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

100

110

120

T (°C)

Figure 14 After single point calibration: Sensitivity error over T (+/-120A version) with 3 sigma limits in green and 1% limit in

dotted blue

Datasheet

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TLE4971

Datasheet

Gain [dB]

1

0

-1

-2

-3

Ta = -40°C

Ta = 25°C

Ta = 75°C

Ta = 125°C

1

10

100

1000

-4

-5

-6

-7

-8

-9

-10

Frequency [kHz]

Figure 15 Typical amplitude over frequency

Phase shift [°]

0

-10

-20

-30

-40

Ta = -40°C

Ta = 25°C

Ta = 75°C

Ta = 125°C

-50

-60

1

10

100

1000

-70

-80

-90

-100

Frequency [kHz]

Figure 16 Typical phase-shift over frequency

Datasheet

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Datasheet

Thermal Performance

70

60

50

40

30

20

10

TLE4971

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

I [A]

Figure 17 Typical steady state temperature increase

Datasheet

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TLE4971

Datasheet

Package

The TLE4971 is packaged in a RoHS compliant, halogen-free leadless package (QFN-like).

4.83

0.1 A

4.83

0.6

2.32

0.6

0.1 A

2.32

0.30

0.25

0.30

B

0.25

A

8

7

1

A

6

1.0

1.4

8 x

0.1

1.0

M

INDEX MARKING

1.1 MAX.

0.4

2.26

R0.20

R0.30

R0.20

R0.30

0.60

Figure 18 PG-TISON-8-5 package dimensions

Datasheet

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TLE4971

Datasheet

Revision History

Major changes since the last revision

Date

19-08-2022 V1.02

Typo in Table 3 in column “Symbol”

04-07-2022 V1.01

Typo in all eight order numbers on first page (wrong sequence)

Description of change

Editorial changes

27-05-2022 Initial version

Datasheet

22

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Trademarks of Infineon Technologies AG

µHVIC™, µIPM™, µPFC™, AU-ConvertIR™, AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, CoolDP™, CoolGaN™, COOLiR™, CoolMOS™, CoolSET™, CoolSiC™,

DAVE™, DI-POL™, DirectFET™, DrBlade™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPACK™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, GaNpowIR™,

HEXFET™, HITFET™, HybridPACK™, iMOTION™, IRAM™, ISOFACE™, IsoPACK™, LEDrivIR™, LITIX™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OPTIGA™,

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Trademarks updated November 2015

Other Trademarks

All referenced product or service names and trademarks are the property of their respective owners.

IMPORTANT NOTICE

The information given in this document shall in no For further information on the product, technology,

Edition 19-08-2022

event be regarded as a guarantee of conditions or delivery terms and conditions and prices please

Published by

characteristics (“Beschaffenheitsgarantie”) .

contact your nearest Infineon Technologies office

(www.infineon.com).

Infineon Technologies AG

81726 München, Germany

With respect to any examples, hints or any typical

values stated herein and/or any information

regarding the application of the product, Infineon

Technologies hereby disclaims any and all

warranties and liabilities of any kind, including

without limitation warranties of non-infringement of

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dangerous substances. For information on the types

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Document reference

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型号：	TLE4971-A075N5-U-E0001
厂家：	Infineon
描述：	The Infineon XENSIV TLE4971-A075N5-E0001 is a new automotive qualified pre-programmed 75A current sensor. The high precision current measurement serves applications with medium to high currents. Due to the coreless magnetic current sensing principle, saturation or hysteresis effects commonly known from sensors using flux concentration techniques are avoided. The analog interface and two fast over-current detection pins with a reaction time of less than 1µs ensures a safe operation of the applications.
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中文：	中文翻译
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TLE4971-A075N5-U-E0001 [INFINEON]

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