RT9284A-20GJ6E Richtek USA Inc, RT9284A-20GJ6E Datasheet - Page 4

• Manufacturer Part Number: RT9284A-20GJ6E
• Description: IC LED DVR WHITE BCKLGT TSOT23-6
• Manufacturer: Richtek USA Inc

Specifications of RT9284A-20GJ6E

• Constant Current: Yes
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Mounting Type: Surface Mount
• Topology: PWM
• Number Of Outputs: 1
• Frequency: 900kHz ~ 1.5MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Package / Case: SOT-23-6 Thin, TSOT-23-6
• Operating Temperature: -40°C ~ 85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

RT9284A/B
Absolute Maximum Ratings
Recommended Operating Conditions
4
Electrical Characteristics
System Supply Input
Operation voltage Range
Under Voltage Lock Out
Quiescent Current
Supply Current
Shut Down Current
Line Regulation
Oscillator
Operation Frequency
Maximum Duty Cycle
Dimming Frequency
Reference Voltage
Feedback Voltage
www.richtek.com
(V
Supply Input Voltage ------------------------------------------------------------------------------------------------------ −0.3V to 7V
LX Input Voltage ----------------------------------------------------------------------------------------------------------- −0.3V to 22V
OVP Voltage ---------------------------------------------------------------------------------------------------------------- −0.3V to 22V
The Other Pins ------------------------------------------------------------------------------------------------------------- −0.3V to 6V
Power Dissipation, P
TSOT-23-5 ------------------------------------------------------------------------------------------------------------------- 0.455W
TSOT-23-6 ------------------------------------------------------------------------------------------------------------------- 0.455W
Package Thermal Resistance (Note 4)
TSOT-23-5, θ
TSOT-23-6, θ
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range --------------------------------------------------------------------------------------------
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
Supply Input Voltage ------------------------------------------------------------------------------------------------------ 2.7V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------------
Ambient Temperature Range --------------------------------------------------------------------------------------------
IN
= 3.7V, T
Parameter
A
= 25°C unless otherwise specified)
JA
JA
------------------------------------------------------------------------------------------------------------- 220°C/W
------------------------------------------------------------------------------------------------------------- 220°C/W
(Note 5)
D
@ T
A
= 25°C
V
V
I
I
I
f
RT9284A
RT9284B
DD
DD
DD
OSC
DD
DD
Symbol
(Note 1)
FB = 1.5V, No switch
FB = 0V, Switch
V
V
EN
IN
: 3.0~4.3V
< 0.4V
Test Condition
(Note 3)
1.173
0.237
Min
100
2.7
1.8
0.1
0.9
50
85
--
--
1.235
0.25
DS9284A/B-06 June 2009
Typ
300
2.2
1.2
--
--
--
--
2
3
−
−
−
1.296
0.263
To be continued
1000
100k
Max
5.5
2.5
1.5
65°C to 150°C
40°C to 125°C
40°C to 85°C
--
--
1
3
Units
MHz
mA
uA
uA
Hz
%
%
V
V
V
V