Datasheet

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List of Materials

Table 3. UCC25230EVM-662 List of Materials (continued)

QTY REF DES DESCRIPTION PART NUMBER MFR

3 R15, R45, R47 Resistor, chip, 1/16 W, ±1%, 0 Ω, 0603 Std Std

1 R16 Resistor, chip, 1/16 W, ±1%, 75.0 kΩ, 0603 Std Std

2 R17, R19 Resistor, chip, 1/16 W, ±1%, 402 Ω, 0603 Std Std

1 R18 Resistor, chip, 1/16 W, ±1%, 4.64 kΩ, 0603 Std Std

2 R2, R13 Resistor, chip, 1/16 W, ±1%, 5.11 kΩ, 0603 Std Std

1 R20 Resistor, chip, 1/16 W, ±1%, 6.81 kΩ, 0603 Std Std

1 R21 Resistor, chip, 1/16 W, ±1%, 365 Ω, 0603 Std Std

1 R22 Resistor, chip, 1/16 W, ±1%, 1.50 kΩ, 0603 Std Std

1 R23 Resistor, chip, 1/8 W, ±1%, 316 kΩ, 0805 std std

1 R24 Resistor, chip, 1/4 W, ±1%, 17.8 Ω, 1206 Std Std

1 R25 Resistor, chip, 1/4 W, ±1%, 36.5 Ω, 1206 Std Std

1 R26 Resistor, chip, 1/16 W, ±1%, 10.5 kΩ, 0603 Std Std

1 R28 Resistor, chip, 1/16 W, ±1%, 20.0 kΩ, 0603 Std Std

2 R3, R6 Resistor, chip, 1/16 W, ±1%, 23.2 kΩ, 0603 Std Std

1 R31 Resistor, chip, 1/4 W, ±1%, 90.9 Ω, 1206 Std Std

2 R32, R33 Resistor, chip, 1/4 W, ±1%, 20 Ω, 1206 Std Std

1 R34 Resistor, chip, 1/16 W, ±1%, 47.5 kΩ, 0603 Std Std

2 R35, R36 Resistor, chip, 1/16 W, ±1%, 1 Ω, 0603 Std Std

0 R37 Resistor, chip, 1/4 W, ±1%, open, 1206 Std Std

1 R38 Resistor, chip, 1/16 W, ±1%, 30.1 kΩ, 0603 std std

2 R40, R41 Resistor, chip, 1/16 W, 1%, 90.9 kΩ, 0603 std std

1 R42 Resistor, chip, 1/16 W, 1%, 2.49 kΩ, 0603 Std Std

1 R46 Resistor, chip, 1/16 W, ±1%, 100 kΩ, 0603 Std Std

2 R5, R27 Resistor, chip, 1/16 W, ±1%, 200 Ω, 0603 Std Std

2 R7, R44 Resistor, chip, 1/16 W, ±1%, 49.9 Ω, 0603 Std Std

1 R8 Resistor, chip, 1/16 W, ±1%, 51.1 kΩ, 0603 Std Std

2 R9, R11 Resistor, chip, 1/16 W, ±1%, 49.9 kΩ, 0603 Std Std

1 T1 Transformer, half bridge ±30%, 270 µH, 1.120 inch x AF5096 Vitec

1.273 inch Electronics

1 T2 Xfmr, current sense, 100:1, 0.315 inch x 0.320 inch CST2-100L Coilcraft

1 T3 Transformer, 1 primary, 1 secondary, 785 µH, 0.460 PA0185 Pulse

inch x 0.340i inch

2 U1, U5 Photocoupler, SOP-4 PS2701-1 NEC

1 U2 120-V Boot, 3-A Peak, High-Side Low-Side Driver, SO8 UCC27201DDA TI

1 U3 Advanced PWM Controller with Pre-Bias Operation, UCC28250PW TI

TSSOP-20

1 U4 Dual 4-A Peak Low-Side MOSFET Driver, SO8 UCC27324D TI

1 U6 12-V to 100-V Input, 0.2-A Output Switching Converter, UCC25230DRM TI

VSON

SLUU863– February 2012 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V

Telecom Applications

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