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PCA9626B Datasheet(PDF) 39 Page - NXP Semiconductors

Part # PCA9626B
Description  24-bit Fm I2C-bus 100 mA 40 V LED driver
PDF  47 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA9626B Datasheet(HTML) 39 Page - NXP Semiconductors

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PCA9626_2
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 31 August 2009
39 of 47
NXP Semiconductors
PCA9626
24-bit Fm+ I2C-bus 100 mA 40 V LED driver
15. Test information
Rise and fall times refer to VIL and VIH.
Fig 19. I2C-bus timing diagram
SCL
SDA
tHD;STA
tSU;DAT
tHD;DAT
tf
tBUF
tSU;STA
tLOW
tHIGH
tVD;ACK
002aab285
tSU;STO
protocol
START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6)
bit 1
(D1)
bit 0
(D0)
1 / fSCL
tr
tVD;DAT
acknowledge
(A)
STOP
condition
(P)
RL = Load resistor for LEDn. RL for SDA and SCL > 1 kΩ (3 mA or less current).
CL = Load capacitance includes jig and probe capacitance.
RT = Termination resistance should be equal to the output impedance Zo of the pulse generators.
Fig 20. Test circuitry for switching times
PULSE
GENERATOR
VO
CL
50 pF
RL
500
Ω
002aab284
RT
VI
VDD
DUT
VDD
open
GND



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