Data Sheet

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FAN5331 Rev. 1.0.1
FAN5331 High Efficiency Serial LED Driver and OLED Supply with 20V Integrated Switch
Electrical Characteristics
Test Circuit
Figure 3. Test Circuit
Unless otherwise noted, V
IN
= 3.6V, T
A
= -40°C to +85°C, Typical values are at T
A
= 25°C, Test Circuit,
Figure 3.
Parameter Conditions Min. Typ. Max. Units
Switch Current Limit V
IN
= 3.2V 0.7 1 A
Load Current Capability V
OUT
= 15V, V
IN
≥ 2.7V 35 mA
V
OUT
= 15V, V
IN
≥ 3.2V 50 mA
Switch On-resistance V
IN
= 5V 0.5 Ω
V
IN
= 3.6V 0.7 Ω
Quiescent Current V
SHDN
= 3.6V, No Switching 0.7 mA
V
SHDN
= 3.6V, Switching 1.6 3.0 mA
OFF Mode Current V
SHDN
= 0V 0.1 2 µ A
Shutdown Threshold Device ON 1.5 V
Device OFF 0.5 V
Shutdown Pin Bias Current V
SHDN
= 0V or V
SHDN
= 5.5V 10 nA
Feedback Voltage I
Load
= 0mA 1.205 1.230 1.255 V
Feedback Pin Bias Current 10 nA
Feedback Voltage Line Regulation 2.7V < V
IN
< 5.5V, I
LOAD
= 0mA 0.6 1.2 %
Switching Frequency 1.15 1.6 1.85 MHz
Maximum Duty Cycle 87 93 %
Enable Delay V
IN
= 2.7V, I
OUT
= 35mA, V
OUT
= 15V 0.8 5 mS
Power on Delay V
IN
= 2.7V, I
OUT
= 35mA, V
OUT
= 15V 0.8 5 mS
Switch Leakage Current No Switching, V
IN
= 5.5V 1 µ A
150KΩ
13.4KΩ
SHDN
V
IN
V
OUT
R1
R2
GND
V
IN
FB
SW
FAN5331
C
F
C
IN
10µH
1
3
2
4
5
4.7µF
120pF
C
OUT
L
BAT54
4.7µF
2.7V to 5.5V
ON
OFF