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ADP8860ACBZ-R7 数据表(PDF) 4 Page - Analog Devices

部件名 ADP8860ACBZ-R7
功能描述  Charge Pump, 7-Channel Smart LED Driver with I2C Interface
Download  52 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP8860ACBZ-R7 数据表(HTML) 4 Page - Analog Devices

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ADP8860
Rev. 0 | Page 4 of 52
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
AMBIENT LIGHT SENSING
COMPARATORS
Ambient Light Sensor Current
IALS
CMP_IN = VD6 = 2.8 V, Bit CMP2_SEL = 1
0.70
1.08
1.33
mA
DAC Bit Step
Threshold L2 Level
IL2BIT
IL2BIT = IALS/250
4.3
μA
Threshold L3 Level
IL3BIT
IL3BIT = IALS/2000
0.54
μA
FAULT PROTECTION
Startup Charging Current Source
ISS
VIN = 3.6 V, VOUT = 0.8 × VIN
2.5
3.75
5.5
mA
Output Voltage Threshold
VOUT
Exit Soft Start
VOUT(START)
VOUT rising
0.92 × VIN
V
Short-Circuit Protection
VOUT(SC)
VOUT falling
0.55 × VIN
V
Output Overvoltage Protection
VOVP
Activation Level
5.8
V
OVP Recovery Hysteresis
500
mV
Thermal Shutdown
Threshold
TSD
150
°C
Hysteresis
TSD(HYS)
20
°C
Isolation from Input to Output
During Fault
IOUTLKG
VIN = 5.5 V, VOUT = 0 V, Bit nSTBY = 0
1.5
μA
Time to Validate a Fault
tFAULT
2
μs
I2C INTERFACE
VDDIO Voltage Operating Range
VDDIO
5.5
V
Logic Low Input2
VIL
VIN = 3.6 V
0.6
V
Logic High Input3
VIH
VIN = 3.6 V
1.30
V
I2C TIMING SPECIFICATIONS
Guaranteed by design
Delay from Reset Deassertion to
I2C access
tRESET
20
μs
SCL Clock Frequency
fSCL
400
KHz
SCL High Time
tHIGH
0.6
μs
SCL Low Time
tLOW
1.3
μs
Setup Time
Data
tSU, DAT
100
ns
Repeated Start
tSU, STA
0.6
μs
Stop Condition
tSU, STO
0.6
μs
Hold Time
Data
tHD, DAT
0
0.9
μs
Start/Repeated Start
tHD, STA
0.6
μs
Bus Free Time (Stop and Start
Conditions)
tBUF
1.3
μs
Rise Time (SCL and SDA)
tR
20 + 0.1 CB
300
ns
Fall Time (SCL and SDA)
tF
20 + 0.1 CB
300
ns
Pulse Width of Suppressed Spike
tSP
0
50
ns
Capacitive Load Per Bus Line
CB
400
pF
1 Current source matching is calculated by dividing the difference between the maximum and minimum current from the sum of the maximum and minimum.
2 VIL is a function of the input voltage. See
in the
section for typical values over operating ranges.
Figure 16
Figure 16
Typical Performance Characteristics
Typical Performance Characteristics
3 VIH is a function of the input voltage. See
in the
section for typical values over operating ranges.


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