U2010B datasheet(9/18 Pages) ATMEL

Part #	U2010B

Description	Programmable Load-current Limitation with Over- and High-load Output

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Manufacturer	ATMEL [ATMEL Corporation]

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9 / 18 page

9

4766C–INDCO–04/10

U2010B

Load-current Detection, R1 = R2 = 3 kΩ, V15 = 0, V5 = V6 = V8, see Figure 7-7 on page 12

Transfer gain

I5/150 mV, I6/150 mV

GI

0.28

0.32

0.37

µA/mV

Output offset currents

5, 6 , 7, 8

-I0

03

6

µA

Reference voltage

I1, I2 = 100 µA

1, 2

-VRef

300

400

mV

Shunt voltage amplitude

See Figure 1-2 on page 2

±V(R6)

250

mV

Load-current Limitation

6, 7, 8

High load switching

Threshold VT70

Figure 7-9 on page 12

V

T70

44.35

4.7

V

Overload switching

Threshold V

T100

Figure 7-10 on page 13

Figure 7-11 on page 13

V

T100

5.8

6.2

6.6

V

Restart switching

Threshold VT25

Figure 7-8 on page 12

V

T25

1.25

1.55

1.85

V

Input current

Enquiry mode

I

i

1µA

Output impedance

Switching mode

R

0

24

8

k

Ω

Programming Input, see Figure 1-2 on page 2

9

Input voltage - auto-start

9 open

-V

9

3.8

4.3

4.7

V

Input current

V

9 = 0 (amax)

V

9 = V8 (Imax)

-I

9

I

9

5

10

20

µA

High Load Output, V

T70, see Figure 7-9 on page 12, I12 = -3mA

11, 12

Saturation voltages

V

6-8 ≤VT70

V6-8 ≥ VT70

V

sat

Vlim

0.5

7.0

0.75

7.4

1.0

7.8

V

Overload Output, VT100, V9 = Open or V9 = V10, see Figure 7-10 on page 13

Leakage current

V6-8 ≤VT25, V13 = (V11+1)V

13

Ilkg

0.5

µA

Saturation voltages

V6-8 ≥ VT100, I13 = 10 µA

11, 12, 13

Vsat

0.1

V

Output current, maximum load

V9 = V8,

see Figure 7-10 on page 13

13

I13

1mA

Leakage current

V

6 ≤VT100

13

I

lkg

4µA

Output impedance

Open collector, V

6 ≥ VT100

13

R

0

24

8

k

Ω

Saturation voltage

V

6-8 ≥ VT100, I13 = 10 µA

13

V

13-8

100

mV

6.

Electrical Characteristics (Continued)

Parameters

Test Conditions

Symbol

Min.

Typ.

Max.

Unit

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