When the output of the TSC200 enters into a saturated state it needs less than 3 µs to get back to a linear state

as shown by Figure 43 and Figure 44.

Figure 43. Negative overvoltage recovery VCC = 5 V

-3µ

-2µ

-1µ

0

1µ

2µ

3µ

4µ

5µ

6µ

7µ

8µ

0

1

2

3

4

5

6

7

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Time (s)

Vout

Vsense

Vcc=5V,

Vicm=12V,

Cl=100pF,

T=25°C

Figure 44. Positive overvoltage recovery VCC = 5 V

-3µ

-2µ

-1µ

0

1µ

2µ

3µ

4µ

5µ

6µ

7µ

8µ

0

1

2

3

4

5

6

7

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Time (s)

Vout

Vsense

Vcc=5V,

Vicm=12V,

Cl=100pF,

T=25°C

5.12

Comparator

The TSC20x family integrates an open-drain comparator, which can be useful for an overcurrent protection

function. It is generally recommended to use a 5.1 kΩ pull up resistance on the output. The voltage applied on the

pull up resistance must be in the 2.7 to 18 V range, regardless of the VCC. This comparator offers a 300 ns

(typical) response time for a small overdrive of 5 mV and lower than 100 ns for an overdrive higher than 50 mV.

The comparator can latch the information and reset it thanks to the RESET pin. Nevertheless, if the RESET pin is

left open or connected to the ground, the output latch feature is not functional anymore, and the output acts as a

classic comparator. If the RESET pin is connected to a voltage higher than 1.1 V, once CMPIN rises above 608

mV, CMPOUT latches and remains in this state even if CMPIN drops below 608 mV. Pulsing the RESET pin to

ground for at least 0.1 µs resets the latch. See Figure 45.

Figure 45. Comparator latching capability

-500m

-400m

-300m

-200m

-100m

0

100m

200m

300m

0

1

2

3

4

5

6

7

8

9

10

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

Time (s)

CMPOUT

CMPIN

Vcc=5V,

T=25°C

RESET

TSC200, TSC201, TSC202

Comparator

DS13882 - Rev 2

page 22/34