TEA1762T_2

© NXP B.V. 2007. All rights reserved.

Product data sheet

Rev. 02 — 25 April 2007

3 of 15

NXP Semiconductors

TEA1762T

GreenChip synchronous rectifier controller

6.

Pinning information

6.1 Pinning

6.2 Pin description

7.

Functional description

The TEA1762T is the controller for synchronous rectification to be used in discontinuous

conduction mode and quasi resonant flyback converters. Besides controlling the

SR MOSFET, the TEA1762T contains the voltage reference and amplifiers to regulate and

control the output voltage and output current of the power supply.

Fig 2.

Pin configuration TEA1762T

TEA1762T

SRSENSE

POWERGND

n.c.

SENSEGND

n.c.

PROTECT

ISENSE

n.c.

VSENSE

DRIVER

VREF

OPTOPROT

OPTOREG

001aae773

1

2

3

4

5

6

7

8

10

9

12

11

14

13

Table 2.

Pin description for SO14

Symbol

Pin

Description

SRSENSE

1

synchronous timing input

POWERGND

2

power ground

SENSEGND

3

sense ground

PROTECT

4

general purpose protection input

n.c.

5

not connected

DRIVER

6

driver output for SR MOSFET

OPTOPROT

7

opto coupler driver output for current protection

OPTOREG

8

opto coupler driver output for voltage regulation

VREF

9

reference voltage output

VSENSE

10

sense input for voltage control

ISENSE

11

sense input for current control

n.c.

12

not connected

n.c.

13

not connected

14

supply voltage