Texas Instruments UCC38500EVM Unless otherwise specified, all resistors have a tolerance of ±1%

				DM38500 EVM Part Descriptions
Description	Reference	Qty	Value/Type Number	Manufacturer	Part
					Number
	R1, R12	2	Short
	R10, R36	2	200 Ω, ¼ W
	R25, R29,	3	10 kΩ, ¼ W
	R27
	R13	1	2 kΩ, ¼ W
	R14	1	1.5 kΩ, ¼ W
	R15, R19	2	3.92 kΩ, ¼ W
	R16	1	750 Ω, ¼ W
	R17	1	7.5 kΩ, ¼ W
	R18, R24	2	392 kΩ, ¼ W
	R2, R11	2	1 kΩ, ¼ W
	R20	1	22.1 kΩ, ¼ W
	R21	1	8.25 kΩ, ¼ W
Resistors	R22, R33	2	562 kΩ, ¼ W
	R23	1	200 kΩ, ¼ W
	R26	1	100 Ω, ¼ W
	R28	1	100 kΩ, ¼ W
	R30	1	30.1 kΩ, ¼ W
	R31	1	33.2 kΩ, ¼ W
	R32	1	4.75 kΩ, ¼ W
	R34	1	221 kΩ, ¼ W
	R35	1	16.2 kΩ, ¼ W
	R39	1	1 kΩ, 1 W
	R4	1	1 Ω, 1 W, ±5%
	R5	1	0.33 Ω, 3 W, ±5%
	R6, R7	2	20 Ω, ¼ W
	R3	1	51 kΩ, 2 W, 400 V
Transformers	T1	1	8 mH, 10 A, 10.8:1	Cooper	CTX08−14226
	T2	1	560−990 µH, 1:1 gate drive	Cooper	CTX08−14225
	U4	1	BiCMOS PFC/PWM	Texas	UCC38500N
ICs			combination controller	Instruments
	U3	1	Opto-isolator		4N36
	X1	3	Thermal pad TO−220
			(@ Q1, Q2, D8)
	X2	1	Thermal pad TO−247
			(@ Q3)
Miscellaneous	X3	4	Screw pan head #4−40 X
			7/16 (@Q1, Q2, Q3, D8)
	X4	4	Nut #4x40
	X5	3	Nylon shoulder washer #4
			(@Q1, Q2, D8)
	X6	1	Bevel washer #4 (@Q3)
PCB	PCB	1	Bare board		UCC38500 PCB

Notes:

1)The values of these components are to be determined by the user in accordance with the applica- tion requirements.

2)Unless otherwise specified, all resistors have a tolerance of ±1%.

3)Capacitor C38 is located at reference designator R38 on the PCB.

Reference2-3