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| 型号： | SP6699EB |
| 厂商： | Exar Corporation |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR SP6699 |
| 标准包装： | 1 |
| 系列： | * |
S P 6 6 9 9
2 7 V S t e p U p W h i t e L E D D r i v e r
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
OPERATING RATINGS
Input Voltage Range V IN ................................ 2.7V to 16V
Operating Temperature Range ................... -40°C to 85°C
CTRL Voltage V CTRL .................................................. 16V
Thermal Resistance (junction to Atm.) R θ JA ..........265°C/W
reliability.
Input Voltage V IN .................................................... 20V
SW Voltage ............................................................ 27V
FB Voltage ............................................................. 20V
CTRL Voltage ......................................................... 20V
Operating Junction Temperature ........................... 150oC
Storage Temp. Range T STG ....................... -65oC to 150oC
Lead Temperature (sold. 10s) TLEAD ..................... 260oC
ESD Ratings – Human Body Model ......................... 2000V
ESD Ratings – Machine Model .................................250V
Moisture Sensitivity Level (MSL) ................................... 3
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of T A = 25°C only; limits applying over the full
Operating Junction Temperature range are denoted by a “?”. Minimum and Maximum limits are guaranteed through test,
design, or statistical correlation. Typical values represent the most likely parametric norm at T A = 25°C, and are provided
for reference purposes only. Unless otherwise indicated, V IN = 3V, V CTRL = 3V, T A = 25°C.
Parameter
Operating Voltage
Min.
2.5
Typ.
Max.
16
Units
V
Conditions
Feedback Voltage V FB
188
200
212
mV
?
I OUT =20mA, 4 LEDs
FB Pin Bias Current I FB
35
100
nA
Supply Current I CC
Supply Current I Q
Switching Frequency f
Maximum Duty Cycle D MAX
Switch Current Limit (Note 1)
I LIMIT
Switch V CE Saturation Voltage
V CESAT
Switch Leakage Current
1.3
2.0
0.7
90
2.0
3.2
1.0
93
500
250
360
0.01
2.7
5.0
1.3
5
mA
μA
MHz
%
mA
mA
mV
μA
V FB = V IN , not switching
V CTRL = 0V
T A =25°C, D=40%
T A =25°C, D=80%
I SW =250mA
V SW =5V
CTRL Pin Voltage V CTRL - High
CTRL Pin Voltage V CTRL – Low
1.8
0.05
V
V
40
55
72
μA
CTRL Bias Current I CTRL
Schottky Forward Drop V DROP
50
75
0.7
μA
μA
V
T A =85°C
T A =-40°C
I D =150mA
Schottky Leakage Current
Soft Start Time t
0.1
300
4
150
μA
μA
μs
V R =23V
V R =27V
Note 1: The switch current limit is related to the duty cycle. Refer to figure 16 for details.
? 2011 Exar Corporation
2/12
Rev. 2.1.0
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