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YB1315 Datasheet(PDF) 3 Page - YOBON TECHNOLOGIES,INC.

Part No. YB1315
Description  High Efficiency Charge Pump White LED Driver
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Maker  YOBON [YOBON TECHNOLOGIES,INC.]
Homepage  http://www.yobon.com.tw
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YB1315 Datasheet(HTML) 3 Page - YOBON TECHNOLOGIES,INC.

 
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Preliminary YB1315
High Efficiency Charge Pump White LED Driver
YB1315 Rev.0.1
www.yobon.com.tw
3
Absolute Maximum Ratings
Supply Voltage.......................................5.5V
Output Short-Circuit Duration...... Continuous
Junction Temperature Range...............150℃
Storage Temperature Range..-65℃ to 150℃
Lead Temperature................................250℃
Recommended Operating Conditions
Input Supply Voltage............... 2.7V to 5.5V
Operating Temperature..........-40℃ to 85℃
Electrical Characteristics
Table 3
(VIN=3.6V, EN1=EN2=VIN, TA=25°C, unless otherwise noted.)
Description
Symbol
Test Conditions
MIN
TYP
MAX
Units
SUPPLY VOLTAGE AND CURRENT
Input Voltage Range
VIN
IOUT = 0~70mA
2.7
5.5
V
VIN =4.2V, x1-mode,
EN1=EN2=1, ISET =20μA
250
μA
Operating Quiescent Current
IQ
IOUT = 0mA, x1.5-mode
2
mA
Shutdown Current
ISD
EN1=EN2=GND
0.1
1
μA
CHARGE PUMP STAGE
Over Voltage Limit
VOUT
LED1 unconnected, VIN =4.2V
5.3
V
Startup Time
COUT =1μF, IDX ≥0.9IDX
750
μs
Softstart Duration
500
μs
Switching Frequency
f
0.7
1
1.3
MHz
Efficiency
η
VIN =3.75V, ILED=20mA each
VDX =3.2V
83
%
Shutdown Temperature
160
Shutdown Temperature Hysteresis
20
CURRENT SINKS
Recommended Maximum Current Per
Current Sink
IDX
3.2V≤VIN≤5.5V
25
mA
Current into Each Current Sink when
ISET is Shorted to GND
IDX
3.0V≤VIN≤5.5V
ISET short to GND
60
mA
Current Matching Between Any Two
Outputs
VDX =3.2V, TA =25℃
±3
%
Line Regulation
3.2V≤VIN≤5.5V, VDX =3.2V
EN1=EN2=1, ISET =80μA
±3
%
EN2=0, EN1=1
200
EN2=1, EN1=0
400
Reference Voltage for Current Set
VISET
EN2=1, EN1=1
580
600
620
mV
Recommended ISET Pin Current Range
ISET
4
100
μA
IDX to ISET Current Ratio
k
EN2=1, EN1=1, ISET =80μA
220
250
280
Voltage at Dx to GND
VSOURCE
0.4
V


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