YB1313 Datasheet, PDF (3/9 Pages) YOBON TECHNOLOGIES,INC. – 1x/1.5x/2x Charge Pump for White LED Application

YB1313
1x/1.5x/2x Charge Pump for White LED Application
Absolute Maximum Ratings
Recommended Operating Conditions
y Supply Voltage.................................................. 6.5V
y Output Voltage.................................................. 5.5V
y Output Short-Circuit Duration................Continuous
y Junction Temperature Range ........................ +125℃
y Storage Temperature Range............-65℃ to +150℃
y Lead Temperature ......................................... +250℃
y Input Supply Voltage ........................ 2.7V to 5.5V
y Operating Temperature................. -40℃ to +85℃
Electrical Characteristics
Table 3 At T_A=25℃, V_IN=3.5V, C_IN=1μF, C1=C2=0.47μF, C_OUT=2.2μF, EN1=EN2=V_IN, unless otherwise noted.
SYMBOL
PARAMETER
SUPPLY VOLTAGE AND CURRENT
TEST CONDITIONS
MIN TYP MAX UNIT
VIN
Input voltage range
2.7
5.5
V
1x
IQ
Operating quiescent current
1.5x
800
μA
3
mA
ISD
Shutdown current
VIN = 3.5V, EN1 = EN2 = 0V
1
μA
CHARGE PUMP STAGE
VOUT
Over-voltage limit
LED unconnected, VIN=4.2V
5.5
V
FOSC
Switching frequency
0.6
0.8
1
MHz
ηCP
Charge pump efficiency
VIN = 3.5V, 1.5x mode
Shutdown temperature
Temperature rising
93
%
160
℃
Recovery temperature
Temperature falling
140
℃
CURRENT SINKS
k
ILED to ISET current ratio
EN1=EN2=1, RISET=10K
ΔILED/ILED(min)
ΔI_LED/ΔV_IN
Current matching between any
two outputs²
VLED = 3.5V, TA = 25℃
Line regulation
2.7V < VIN < 4.3V
VISET
Reference voltage for current set
ENABLE 1, ENABLE 2
V (UVLO)
Under-Voltage Lockout
UVLO hysteresis
VIH
EN1, EN2 Threshold high
VIL
EN1, EN2 Threshold low
FPWM
Frequency range at PWM
EN1 = 1, EN2 = 0
EN1 = 0, EN2 = 1
EN1 = 1, EN2 = 1
Supply voltage falling
VIN = 5.5V
VIN = 2.7V
EN1, EN2 shorted for PWM control
290
320
350
0.4
2.0
%
2.0
3.0
4.0
%/V
200
mV
400
mV
600
620
640
mV
2.3
V
100
mV
1.6
V
0.4
V
0
5
kHz
YB1313 MRev.1.1
www.yobon.com.tw
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