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ADP8860ACPZ-R7 数据表(PDF) 25 Page - Analog Devices

部件名 ADP8860ACPZ-R7
功能描述  Charge Pump, 7-Channel Smart LED Driver with I2C Interface
PDF  52 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP8860ACPZ-R7 数据表(HTML) 25 Page - Analog Devices

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ADP8860
Rev. 0 | Page 25 of 52
•
The ADP8860 has an integrated noise filter on the nRST
pin. Under normal conditions, it is not necessary to filter
the reset line. However, if exposed to an unusually noisy
signal, then it is beneficial to add a small RC filter or
bypass capacitor on this pin. If the nRST pin is not used, it must
be pulled well above the VIH(MIN) level (see Table 1). Do not allow
the nRST pin to float.
EXAMPLE CIRCUITS
V
D3
D1
E3
D2
E4
D3
D4
D4
C4
D5
B4
D6
B3
D7
C3
CMP_IN
VOUT
OPTIONAL
PHOTOSENSOR
PHOTOSENSOR
ALS
0.1µF
0.1µF
E1
VDDIO
nRST
C2
VDDIO
SDA
E2
VDDIO
SCL
D2
VDDIO
nINT
A3
VIN
1µF
A4
GND1
D1
GND2
B1
C2+
B2
C2–
C2
1µF
A1
C1+
C1
C1–
C1
1µF
VOUT
1µF
A2
ADP8860
Figure 44. Generic Application Schematic
KEYPAD LIGHT
UP TO 10 LEDs (6mA EACH)
60mA MAX TOTAL CURRENT
ACCESSORY
LIGHTS OR
SUB-DISPLAY BL
PH1
MAIN
PHOTOSENSOR
PH2
OPTIONAL
PHOTOSENSOR
D3
D1
DL1
E3
D2
DL2
E4
D3
DL3
D4
D4
DL4
C4
D5
DL5
B4
D6/
CMP_IN2
DL6
B3
D7
C3
CMP_IN
E1
R1
R2
R3
R4
VDDIO
C2 SDA
E2 SCL
D2
B1
C2+
B2
C2–
A1
C1+
VOUT
GND2
C1
C1–
ADP8860
VIN
GND1
A3
A4
VIN
A2
D1
DISPLAY BACKLIGHT
DL7
R5
DL8
R6
DL17
R15
2.8V
nRST
nINT
nRST
nINT
0.1µF
0.1µF
C2
1µF
C1
1µF
1µF
1µF
I2C
CONTROL
SIGNALS
Figure 45. Application Schematic with Keypad Light Control



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