AN4070 datasheet(45/53 Pages) STMICROELECTRONICS

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AN4070

Magnetic components datasheets

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Figure 36.

DC-DC converter HF transformer (part 1)

AM12183v1

STP 22

Product Technical Specification

Code:

06100

Product: Switch Mode Transformer 250W 50kHz 1.9mH 200V

Class Code:

2159.0003

Customer: STMICROELECTRONICS

Customer code:

Date : 12/01/11

Revision: 01

Page 1 of 2

MOR&D0014-00

Rev.00

02/09/08

MAGNETICA

TYPICAL APPLICATION

TRANSFORMER FOR HALF BRIDGE

, PUSH-PULL AND

FULL BRIDGE POWER SUPPLIES

TECHNICAL DATA

INDUCTANCE

(MEASURE 1KHZ, TA 20°C)

4,5,6-1,2,3

1.33 mH MIN

12-10

2.4 mH MIN

9-7

2.4 mH MIN

RESISTANCE

(MEASURE D.C, TA 20°C)

4,5,6-1,2,3

25 m

Ω MAX

12-10

68 m

Ω MAX

9-7

83 m

Ω MAX

TRANSFORMER RATIO

(MEASURE 10KHZ, TA 20°C)

12-10

⇔ 4,5,6-1,2,3

1.33

± 3%

9-7

⇔ 4,5,6-1,2,3

1.33

± 3%

LEAKAGE INDUCTANCE

0.41 uH NOM

(MEASURE 4,5,6-1,2,3 AND 7-9-10-12 IN S.C, F 10KHZ, TA 20°C)

PARASITIC CAPACITANCE

13 pF NOM

(MEASURE 4,5,6-1,2,3 WITH 7-9-10-12 IN OC, F 1MHZ, TA 20°C)

OPERATING CURRENT

4 A

P MAX

(MEASURE 4,5,6-1,2,3, P

MAX 250W ,F 50KHZ, TA 20°C)

OPERATING FREQUENCY

50 KHZ NOM

MAX 250W , TA 20°C)

OPERATING TEMPERATURE RANGE

-10°C

÷+65°C

MAX 250W , F 50KHZ )

THERMAL CLASS

PRIMARY TO SECONDARY INSULATION

1 KV

(F 50HZ,DURATION TEST 2”, TA 20°C)

MAXIMUM DIMENSIONS

43X43 H31 mm

WEIGHT

64 g APPROX

CIRCUIT DIAGRAM

PIN DESCRIPTION

(*)

FUNCTION

(*)

FUNCTION

PRIMARY DRAIN

SECONDARY GROUND

NOT PRESENT

SECONDARY CENTER TAP

PRIMARY

+VB 80V

10C

NOT PRESENT

SECONDARY

+200V

(*)PIN WITH THE SAME SUBSCRIPT MUST BE CONNECTED TOGETHER ON PCB

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