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Fabricante

EA1530T

GreenChip II SMPS control IC

NXP Semiconductors. 

NXP Semiconductors

TEA1530T/AT/AP

GreenChip II SMPS control IC

Istartup(soft)

0.5 V

start-up

6 SENSE Rss

Vocp

Css

Rsense

Fig 7. Soft start-up

014aaa254

7.14 Driver

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

typically 150 mA and a current sink capability of typically, 500 mA at VCC = 9.5 V. At

VCC = 15 V, the current sourcing capability is typically 250 mA and the current sink

capability typically 0.7 A. This permits fast turning on and 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

ElectroMagnetic Interference (EMI) and also limits the current spikes across Rsense.

8. Limiting values

Table 3: Limiting values

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

with respect to ground (pin 2); positive currents flow into the chip; pin VCC may not be current driven.

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

VCC

VPROTECT

VCTRL

VSENSE

VDRAIN

Currents

supply voltage

voltage on pin PROTECT

voltage on pin CTRL

voltage on pin SENSE

voltage on pin DRAIN

continuous

continuous

current limited

−0.4

+20

V

−0.4

+5

V

−0.4

+5

V

−0.4

-

V

−0.4

+650 V

ICTRL

ISENSE

IDRIVER

IDRAIN

current on pin CTRL

current on pin SENSE

current on pin DRIVER

current on pin DRAIN

d < 10 %

d < 10 %

-

50

mA

−1

+10

mA

−0.8

+2

A

-

5

mA

TEA1530T_AT_AP_1

Product data sheet

Rev. 01 — 30 June 2008

© NXP B.V. 2008. All rights reserved.

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