TEA1532BT Ver la hoja de datos (PDF) - NXP Semiconductors.

Número de pieza

componentes Descripción

Fabricante

TEA1532BT

GreenChip II SMPS control IC

NXP Semiconductors. 

NXP Semiconductors

TEA1532BT; TEA1532CT

GreenChip II SMPS control IC

Vi

CVIN

CVCC

1

8

2

7

TEA1532BT

3 TEA1532CT 6

4

5

coa048

Fig 3. Basic configuration

The TEA1532BT; TEA1532CT can operate in multi modes; see Figure 4.

f

(kHz)

125

Cycle

skip

fixed

FF-CCM

QR

P (W)

coa049

Fig 4. Multi mode and FF-CCM operation

In QR mode, the next converter stroke is started only after demagnetization of the

transformer current (zero current switching), while the drain voltage has reached the

lowest voltage to minimize switching losses (green function). The primary resonant circuit

of primary inductance and drain capacitor ensures this quasi-resonant operation. The

design can be optimized in such a way that zero voltage switching can extend over most of

the universal mains range.

TEA1532BT_TEA1532CT_1

Product data sheet

Rev. 01 — 18 January 2007

© NXP B.V. 2007. All rights reserved.

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