
Philips Semiconductors
PCA9552
16-bit I 2 C-bus LED driver with programmable blink rates
12. Test information
V DD
open
PULSE
GENERATOR
V I
V DD
D.U.T.
V O
RL
500 ?
GND
RT
CL
50 pF
002aab284
R L = load resistor for LEDn. R L for SDA and SCL > 1 k ? (3 mA or less current)
C L = load capacitance includes jig and probe capacitance
R T = termination resistance should be equal to the output impedance Z o of the pulse
generators.
Fig 22. Test circuitry for switching times
PCA9552_5
? Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 05 — 9 March 2006
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