參數(shù)資料
型號(hào)： 935285129118
廠商： NXP SEMICONDUCTORS
元件分類： 顯示驅(qū)動(dòng)器
英文描述： LED DISPLAY DRIVER, PDSO28
封裝： 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28
文件頁(yè)數(shù)： 37/54頁(yè)
文件大小： 410K
代理商： 935285129118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
42 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
14. Test information
RL = Load resistor for LEDn.
CL = Load capacitance includes jig and probe capacitance.
RT = Termination resistance should be equal to the output impedance Zo of the pulse generators.
Fig 34. Test circuitry for switching times
RL = Load resistor for LEDn.
CL = Load capacitance includes jig and probe capacitance.
RT = Termination resistance should be equal to the output impedance Zo of the pulse generators.
Test data are given in Table 15.
Fig 35. Test circuitry for switching times for enable/disable
Table 15.
Test data for enable/disable switching times
Test
Load
Switch
CL
RL
tPD
50 pF
500
open
tPLZ, tPZL
50 pF
500
VDD × 2
tPHZ, tPZH
50 pF
500
VSS
PULSE
GENERATOR
VO
CL
50 pF
RL
500
002aab880
RT
VI
VDD
DUT
VDD
open
VSS
PULSE
GENERATOR
VO
CL
50 pF
RL
500
002aad811
RT
VI
VDD
DUT
RL
500
VDD × 2
open
VSS
S1
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