TEA1733T

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Product data sheet

Rev. 7 — 11 July 2013

10 of 21

NXP Semiconductors

TEA1733T

GreenChip SMPS control IC

7.14 OverTemperature Protection (OTP)

Integrated overtemperature protection ensures the IC stops switching if the junction

temperature exceeds the thermal temperature shutdown limit.

OTP is a latched protection and it can be reset by removing the voltage on pin VCC.

8.

Limiting values

[1]

Equivalent to discharging a 100 pF capacitor through a 1.5 k

 series resistor.

[2]

Equivalent to discharging a 200 pF capacitor through a 0.75

H coil and a 10  resistor.

Table 3.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

Voltages

supply voltage

continuous

0.4

+30

V

t < 100 ms

-

35

V

voltage on pin VINSENSE

current limited

0.4

+5.5

V

voltage on pin PROTECT

current limited

0.4

+5

V

voltage on pin CTRL

0.4

+5.5

V

input/output voltage on pin

OPTIMER

0.4

+5

V

voltage on pin ISENSE

current limited

0.4

+5

V

Currents

current on pin VCC

 <10%

-

+0.4

A

input current on pin

VINSENSE

1+1

mA

input current on pin

PROTECT

1+1

mA

current on pin CTRL

30

mA

current on pin ISENSE

10

+1

mA

current on pin DRIVER

 <10%

0.4

+1

A

General

total power dissipation

0.5

W

storage temperature

55

+150

C

junction temperature

40

+150

C

ESD

electrostatic discharge

voltage

class 1

human body

model

[1] -4000

V

machine model

[2] -300

V

charged device

model

-750

V