ISL6185_11 Datasheet, PDF (15/20 Pages) Intersil Corporation – Dual USB Port Power Supply Controller 2.5V to 5V Operating Range

Test Circuits (Continued)
ISL6185
5V
0-V_IN
10k
FLT
VIN
OUT
ISL6185
EN
10µF
OUTPUT
10
EN
0.5VIN
OUTPUT
t_ON
90%
OUTPUT
90%
10%
t_R
VIN
0.5VIN
0V
t_OFF
10%
VIN
GND
90%
10%
t_F
VIN
-GND
FIGURE 30. TRANSIENT TEST CIRCUIT
FIGURE 31. TRANSIENT WAVEFORM MEASUREMENT POINTS
ISL6185xEVAL1Z Schematic and Photo
R1
10k
AGND
V+
A
AGND
V+
EN1
EN2
AA
U1
ISL6185
R2
FLT1
OUT1
OUT2
FLT2
10k
NOTE: EXPOSED PAD on DFN packages only
R3
10
C2
10µF
R4
10
C3
10µF
FLT1
OUT1
A
OUT2
A
FLT2
FIGURE 32A. ISL6185xEVAL SCHEMATIC
FIGURE 32B. ISL61851EVAL1Z BOARD PHOTO
FIGURE 32. ISL6185xEVAL1Z SCHEMATIC and ISL61851EVAL1Z PHOTOGRAPH
15
FN6937.1
June 27, 2011