MAX16807(2009) 查看數據表（PDF） - Maxim Integrated
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MAX16807
(Rev.:2009)
(Rev.:2009)
Maxim Integrated
MAX16807 Datasheet PDF : 19 Pages
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Integrated 8-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
ode of a string of LEDs connected in series. The con-
stant-current capability is up to 55mA per output, set
for all 8 outputs by an external resistor, RSET. The
device can operate in a stand-alone mode (see the
Typical Operating Circuits.)
The number of channels can be expanded by using the
MAX6970 and MAX6971 family in conjunction with the
MAX16807.
AGND
CS
FB
COMP
MAX16807
REFERENCE
2.5V
PREREG
5V
DELAY
REG_OK
UVLO
THERMAL
SHUTDOWN
EN_REF VDD
BG 5V REG
SNS
VOLTAGE
DIVIDER
VOLTAGE-
DIVIDER
26.5V
300mV ILIM
VCC
SQ
R
CPWM
2R
VEA
CLK
R
OSC Q
CLK
SERIAL-TO-PARALLEL SHIFT REGISTER
DIN
D0
D1
D2
D3
D4
D5
D6
D7
OUTPUT LATCHES
LE
D0
D1
D2
D3
D4
D5
D6
D7
OE
THERMAL
SHUTDOWN
CONSTANT-CURRENT SINK
D0
D1
D2
D3
D4
D5
D6
D7
POWER-ON
RESET
V+
CURRENT
REFERENCE
PGND
VCC
REF
OUT
RTCT
DOUT
V+
SET
Figure 1a. Internal Block Diagram (MAX16807)
12 ______________________________________________________________________________________
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