TEA1532BT 데이터 시트보기 (PDF) - NXP Semiconductors.

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TEA1532BT

GreenChip II SMPS control IC

NXP Semiconductors. 

NXP Semiconductors

TEA1532BT; TEA1532CT

GreenChip II SMPS control IC

Table 5. Characteristics …continued

Symbol

Parameter

Conditions

Min

Driver (pin DRIVER)

Isource

source current

VCC = 9.5 V;

-

VDRIVER = 2 V

Isink

sink current

VCC = 9.5 V

VDRIVER = 2 V

-

VDRIVER = 9.5 V

400

Vo(max)

maximum output

VCC > 12 V

-

voltage

Temperature protection

Tpl(max)

maximum protection

130

level temperature

Tpl(hys)

protection level

VCC > 2 V

-

hysteresis temperature

[1] TEA1532CT: safe restart; TEA1532BT: latch.

[2] Guaranteed by design.

[3] Vi detection level. Set by the demagnetization resistor RDEM; see Section 7.16.

11. Application information

Typ

Max

Unit

−170

−88

mA

300

-

mA

700

-

mA

11.5

12

V

140

150

°C

8

-

°C

A converter with the TEA1532BT; TEA1532CT consists of an input filter, a transformer

with a third winding (auxiliary), and an output stage with a feedback circuit.

Capacitor CVCC buffers the IC supply voltage, which is powered via the internal current

source, that is connected to the rectified mains during start-up and, via the auxiliary

winding, during operation.

A sense resistor Rsense converts the primary current into a voltage at pin SENSE. The

value of Rsense defines the maximum primary peak current.

Figure 9 shows a flyback configuration using the discontinuous conduction mode.

Pin PROTECT is used in this example for external overvoltage protection and open loop

or output short-circuit protection. If this pin is not used, it must be tied to ground. Figure 12

shows a flyback configuration using the continuous conduction mode. The pin PROTECT

is used in this example for external overtemperature protection and open loop or output

short-circuit protection.

TEA1532BT_TEA1532CT_1

Product data sheet

Rev. 01 — 18 January 2007

© NXP B.V. 2007. All rights reserved.

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