pca9685 NXP Semiconductors, pca9685 Datasheet - Page 42

• Manufacturer Part Number: pca9685
• Description: 16-channel, 12-bit Pwm Fm+ I 2c-bus Led Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
14. Test information
PCA9685_1
Product data sheet
Table 15.
Test
t
t
t
PD
PLZ
PHZ
Fig 34. Test circuitry for switching times
Fig 35. Test circuitry for switching times for enable/disable
, t
, t
PZL
PZH
R
C
R
R
C
R
Test data are given in
L
L
T
L
L
T
Test data for enable/disable switching times
= Load resistor for LEDn.
= Load capacitance includes jig and probe capacitance.
= Load resistor for LEDn.
= Load capacitance includes jig and probe capacitance.
= Termination resistance should be equal to the output impedance Z
= Termination resistance should be equal to the output impedance Z
GENERATOR
PULSE
GENERATOR
Load
C
50 pF
50 pF
50 pF
Rev. 01 — 24 July 2008
PULSE
L
Table
15.
V
16-channel, 12-bit PWM Fm+ I
I
V
I
R T
DUT
R T
V
DD
DUT
V
R
500
500
500
DD
L
V
O
V
O
C L
50 pF
C L
50 pF
R L
500
S1
R L
500
R L
500
002aab880
002aad811
V
open
V
V
open
V
2
DD
SS
o
o
DD
SS
C-bus LED controller
Switch
open
V
V
of the pulse generators.
of the pulse generators.
DD
SS
PCA9685
2
© NXP B.V. 2008. All rights reserved.
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