TOP245F-TL 查看數據表（PDF） - Power Integrations, Inc

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TOP245F-TL

TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

Power Integrations, Inc 

TOP242-250

ABSOLUTE MAXIMUM RATINGS(1)

DRAIN Voltage .................................................. -0.3 V to 700 V CONTROL Current .................................................... 100 mA

DRAIN Peak Current: TOP242......................................0.72 A LINE SENSE Pin Voltage ................................... -0.3 V to 9 V

TOP243....................................... 1.44 A CURRENT LIMIT Pin Voltage ........................-0.3 V to 4.5 V

TOP244..........................................2.16A MULTI-FUNCTION Pin Voltage ........................-0.3 V to 9 V

TOP245....................................... 2.88 A FREQUENCY Pin Voltage ..................................-0.3 V to 9 V

TOP246..........................................4.32 A Storage Temperature ..................................... -65 °C to 150 °C

TOP247..........................................5.76 A Operating Junction Temperature(2) ................ -40 °C to 150 °C

TOP248..........................................7.20 A Lead Temperature(3) ...................................................... 260 °C

TOP249..........................................8.64 A Notes:

TOP250........................................10.08 A 1. All voltages referenced to SOURCE, TA = 25 °C.

CONTROLVoltage ................................................ -0.3 V to 9 V 2. Normally limited by internal circuitry.

3. 1/16 in. from case for 5 seconds.

THERMAL IMPEDANCE

Thermal Impedance: Y or F Package:

(θJA)(1) ............................................... 80 °C/W

(θJC)(2) ................................................. 2 °C/W

P or G Package:

(θJA) ............................ 70 °C/W(3); 60 °C/W(4)

(θJC)(5)................................................ 11 °C/W

R Package:

(θJA) ..........80 °C/W(7); 40 °C/W(4); 30 °C/W(6)

(θJC)(5).................................................. 2 °C/W

Notes:

1. Free standing with no heatsink.

2. Measured at the back surface of tab.

3. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610 g/m2)

copper clad.

4. Soldered to 1 sq. in. (645 mm2), 2 oz. (610 g/m2) copper clad.

5. Measured on the SOURCE pin close to plastic interface.

6. Soldered to 3 sq. in. (1935 mm2), 2 oz. (610 g/m2) copper clad.

7. Soldered to foot print area, 2 oz. (610 g/m2) copper clad.

Conditions

Parameter

Symbol

SOURCE = 0 V; TJ = -40 to 125 °C

See Figure 53

Min

Typ Max Units

(Unless Otherwise Specified)

CONTROL FUNCTIONS

Switching

Frequency

(average)

fOSC

FREQUENCY Pin

IC = 3 mA; Connected to SOURCE

124

TJ = 25 °C

FREQUENCY Pin

Connected to CONTROL

61.5

132

66

140

70.5

kHz

Duty Cycle at

ONSET of

Frequency

Reduction

DC(ONSET)

10

%

Switching

Frequency near

0% Duty Cycle

fOSC(DMIN)

132 kHz Operation

66 kHz Operation

30

kHz

15

Frequency Jitter

Deviation

∆f

132 kHz Operation

66 kHz Operation

±4

kHz

±2

Frequency Jitter

Modulation Rate

fM

250

Hz

33 M

12/04

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