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dc1973af

DEMO MANUAL DC1973A

Figure 1. LT8697 Demo Circuit EMI Performance, Switching Frequency = 2MHz

Description

Table 1. Configure X1 – X4 for Different USB Applications

X1

X2

X3

X4

J3

Do Not Care

Do Not Care

Do Not Care

OPEN

Not in USE

OPEN

OPEN

SHORT

SET

USB - DCP

D+

D-

OPEN

SET

USB - APPLE 2.1A

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Summary of Contents for DC1973A

Page 1: ...eded at VCABLE refer to application examples on the data sheet If VCABLE is not connected to any load VOUT can be used to power up a load VSYS can also be used to supply a small load L LT LTC LTM Line...

Page 2: ...ance Switching Frequency 2MHz Description Table 1 Configure X1 X4 for Different USB Applications X1 X2 X3 X4 J3 Do Not Care Do Not Care Do Not Care OPEN Not in USE OPEN OPEN SHORT SET USB DCP D D OPEN...

Page 3: ...to be connected to J3 use Table 1 as a guide to set X1 to X4 for different USB applications The total current provided at J3 and VCABLE should not exceed 2 1A 7 Set X5 to V if a quick transient test...

Page 4: ...MANUAL DC1973A Quick Start Procedure Figure 2 Proper Measurement Equipment Setup Figure 2 Measure Output Ripple Downloaded from Arrow com Downloaded from Arrow com Downloaded from Arrow com Downloaded...

Page 5: ...Chip 10k 0 06W 5 0402 VISHAY CRCW040210K0JNED 14 1 R10 Res Chip 16 5k 0 1W 1 0603 VISHAY CRCW060316K5FKEA 15 1 U1 I C Switching Reg QFN 24 UDD 3MMX5MM LINEAR TECH LT8697EUDD PBF Additional Demo Board...

Page 6: ...M00FKEA 22 2 R21 R24 Res Chip 2 0 25W 5 1206 VISHAY CRCW12062R00JNEA 23 1 U2 I C Oscillator TSOT 23 S5 LINEAR TECH LT6900CS5 PBF Hardware For Demo Board Only 1 13 E1 E13 Turret Testpoint MILL MAX 2501...

Page 7: ...49 9k R8 49 9k R16 43 2k 0603 R16 43 2k 0603 R23 18 2512 R23 18 2512 R14 OPT R14 OPT R10 16 5k 0603 R10 16 5k 0603 R17 49 9k 0603 R17 49 9k 0603 C10 0 1 F 25V 0603 C10 0 1 F 25V 0603 C25 47 F 10V 1210...

Page 8: ...INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the...

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