ADP8861 Analog Devices, ADP8861 Datasheet - Page 18
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ADP8861
Manufacturer Part Number
ADP8861
Description
Charge Pump, 7-Channel Smart LED Driver with I2C Interface
Manufacturer
Analog Devices
Datasheet
1.ADP8861.pdf
(40 pages)
Specifications of ADP8861
Vin Range
2.5 to 5.5V
Vout (v)
4.3 to 5.5
Synchronous
No
Package
20-Lead LFCSP,20-Lead WLCSP
Led Configuration
Parallel
Topology
Capacitive
I2c Support
Yes
Max Iout (ma)
60mA
Brightness Control
PWM
Peak Efficiency (%)
89%
Switching Frequency
1.32MHz
Over Volt Protection (v)
5.8V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADP8861ACPZ-R7
Manufacturer:
ADI/亚德诺
Quantity:
20 000
ADP8861
VOUT < V
VOUT < V
VOUT < V
VOUT > V
VOUT > V
OVP FAULT
OVP FAULT
OVP FAULT
V
V
V
OVP
OVP (HYS)
OVP(HYS)
1
1
(HYS)
OVP
OVP
OVP
OVP
OVP
–
–
–
0
0
0
1
VOUT > V
VOUT > V
VOUT > V
REGULATE
REGULATE
V
V
VOUT TO
VOUT TO
TRY TO
OUT(REG)
TRY TO
OUT(REG)
1
1
1
OUT(REG)
OUT(REG)
1
1
OVP
0
0
0
EXIT STANDBY
VOUT > V
VIN TO VOUT
STARTUP:
STANDBY
STARTUP
CHARGE
0
G = 1.5
G = 2
EXIT
G = 1
OUT(START)
NOTES
1. V
Figure 38. Fault State Machine
1
DMAX
Rev. A | Page 18 of 40
IS THE CALCULATED GAIN DOWN TRANSITION POINT.
EXIT STANDBY
100µs (TYP)
SCP FAULT
VOUT < V
100µs (TYP)
100µs (TYP)
WAIT
WAIT
WAIT
1
OUT(SC)
0
DIE TEMP > TSD
MIN (V
< V
0
MIN (V
MIN (V
0
HR(UP)
< V
> V
D1:D7
0
HR(UP)
DMAX
TSD – TSD
D1:D7
D1:D7
DIE TEMP <
)
)
)
0
(HYS)
1
0
0
TSD FAULT
MIN (V
> V
DMAX
D1:D7
)