© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

Objective data sheet

Rev. 01 — 18 May 2005

9 of 22

Philips Semiconductors

TEA1530AT

GreenChip

™II SMPS control IC

7.14 Driver

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

capability typically 0.7 A. This permits fast turn-on and turn-off of the power MOSFET for

efficient operation.

A low driver source current has been chosen to limit the

∆V/∆t at switch-on. This reduces

8.

Limiting values

Fig 7.

Soft start-up

SENSE

start-up

mgu237

6

0.5 V

Table 3:

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are measured

The voltage ratings are valid provided other ratings are not violated; current ratings are valid

provided the maximum power rating is not violated.

Symbol

Parameter

Conditions

Min

Max

Unit

Voltages

supply voltage

continuous

−0.4

+20

V

voltage on pin PROTECT

continuous

−0.4

+5

V

voltage on pin CTRL

−0.4

+5

V

voltage on pin SENSE

current limited

−0.4

-

V

voltage on pin DRAIN

−0.4

+650

V

Currents

current on pin CTRL

d < 10 %

-

50

mA

current on pin SENSE

−1

+10

mA

current on pin DRIVER

d < 10 %

−0.8

+2

A

current on pin DRAIN

-

5

mA

General

total power dissipation

SO8 package

-

0.5

W