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参数资料
| 型号： | XRP7604EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XRP7604 |
| 标准包装： | 1 |
| 系列： | * |
X R P 7 6 0 4
1 A 2 9 V N o n - S y n c . B u c k H i g h P o w e r L E D D r i v e r
PIN DESCRIPTION
Name
FB
GND
VDR
PVIN
SVIN
LX
ISET
Power PAD
Pin Number
1
2
3
4,5
6
7
8
9
Description
Regulator feedback input. A current setting resistor is connected to LED’s cathode and
FB on one side and to ground on the other side. This pin can be also used for dimming
control. By connecting a diode between this pin and a >2V signal the LED can be pulsed
at up to 1kHz
Ground pin
Power supply for the internal driver. This voltage is internally regulated to about 5V
below VIN. Place a 0.1uF decoupling capacitor between VDR and Vin as close as
possible to the IC.
Connection to the FET source
Input power supply for the regulator. Place input decoupling capacitor as close as
possible to this pin. This is the Vin connection for the regulator and is not tied to the
high-side FET.
Connect to the output inductor. This is the P-Channel FET Drain
This pin is used as a current limit input for the internal current limit comparator.
Connect to LX through an optional resistor. Internal threshold is pre-set to 350mV
nominal and can be decreased by changing the external resistor based on the following
formula: VTRSHLD = 350mV – 33uA * R
Can be connected to inductor LX node for a thermal PAD – see Layout suggestions
section.
ORDERING INFORMATION
Part Number
XRP7604EDB-F
XRP7604EDBTR-F
Temperature
Range
-40°C ≤ T J ≤ +125°C
-40°C ≤ T J ≤ +125°C
Marking
XRP7604E
YYWWF
LOT#
XRP7604E
YYWWF
LOT#
Package
HSOICN-8
Exp. PAD
HSOICN-8
Exp. PAD
Packing
Quantity
Bulk
2.5K/Tape & Reel
Note 1
RoHS Compliant
Green-Halogen Free
RoHS Compliant
Green/Halogen Free
Note 2
XRP7604EVB
XRP7604 Evaluation Board
“YY” = Year – “WW” = Work Week – “F” = Green/Halogen Free designator – “LOT#” = Lot Number
? 2009 Exar Corporation
4/13
Rev. 1.0.0
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