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Fabricante

TEA1738T

GreenChip SMPS control IC

NXP Semiconductors. 

NXP Semiconductors

TEA1738T; TEA1738LT

GreenChip SMPS control IC

7.14 Driver (pin DRIVER)

The driver circuit to the gate of the power MOSFET has a current sourcing capability of

typically 300 mA and a current sink capability of typically 750 mA. This allows for a fast

turn-on and turn-off of the power MOSFET for efficient operation.

7.15 OverTemperature Protection (OTP)

Integrated temperature protection ensures the IC stops switching if the junction

temperature exceeds the thermal shutdown temperature limit.

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

8. Limiting values

Table 3. Limiting values

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

Symbol

Parameter

Conditions

Voltages

VCC

supply voltage

continuous

t < 100 ms

VVINSENSE

VPROTECT

VCTRL

VIO(OPTIMER)

voltage on pin VINSENSE current limited

voltage on pin PROTECT current limited

voltage on pin CTRL

input/output voltage on pin

OPTIMER

VISENSE

Currents

voltage on pin ISENSE current limited

ICC

II(VINSENSE)

supply current

input current on pin

VINSENSE

δ <1 0%

II(PROTECT)

input current on pin

PROTECT

ICTRL

IISENSE

IDRIVER

General

current on pin CTRL

current on pin ISENSE

current on pin DRIVER

δ <1 0%

Ptot

total power dissipation

Tamb <7 5 °C-

Tstg

storage temperature

Tj

junction temperature

Min

−0.4

-

−0.4

−0.4

−0.4

−0.4

−0.4

-

−1+

−1+

−30

−10

−0.4

−55

−40

Max Unit

+30 V

35

V

+5.5 V

+5

V

+5.5 V

+5

V

+5

V

0.4 A

1

mA

1

mA

mA

+1

mA

+1

A

0.5 W

+150 °C

+150 °C

TEA1738T_TEA1738LT

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 2 — 14 January 2011

© NXP B.V. 2011. All rights reserved.

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