SP6686ER-L-TR Datasheet, PDF (2/13 Pages) Exar Corporation – 400mA Buck/Boost Charge Pump LED Driver

SP6686
400mA Buck/Boost Charge Pump LED Driver
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
reliability.
V_IN, V_OUT ................................................... -0.3V to 6.0V
Output Current Pulse (FLASH) .............................. 500mA
Output Current Continuous (TORCH)..................... 200mA
V_EN .................................................................0V to 7V
Storage Temperature .............................. -65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 260°C
ESD Rating EN pin (HBM - Human Body Model) .......... 1kV
ESD Rating All Other Pins (HBM) .............................. 2kV
OPERATING RATINGS
Input Voltage Range V_IN...............................2.7V to 5.5V
Operating Temperature Range ................... -40°C to 85°C
Thermal Resistance θ_JA ................................... 57.1°C/W
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Junction Temperature of T_J = 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_J = 25°C, and are provided for
reference purposes only. Unless otherwise indicated, V_IN = V_SHTDN= 3.6V, C_IN = 2.2µF, C_FC = 0.47µF, C_OUT = 1µF. T_A= –40°C
to 85°C.
Parameter
Operating Input Voltage
Min.
2.7
Quiescent Current
Shutdown Current
Oscillator Frequency
Charge Pump Equivalent
Resistance (x2 Mode)
Charge Pump Equivalent
Resistance (x1 Mode)
FB Reference Voltage
138
FB Reference Voltage
45
FB Pin Current
EN, Flash Logic Low
EN, Flash Logic High
1.3
EN, Flash Pin Current
V_OUT Turn-on Time
Thermal Shutdown Temperature
Typ.
0.5
2
2.4
5
0.6
150
50
250
145
Max.
5.5
3
1
0.8
162
55
0.5
0.4
0.5
500
Units
V
mA
µA
MHz
Ω
Ω
mV
mV
µA
V
V
µA
µs
o_C
Conditions
•
• ^{VIN = 2.7 – 5.5V FLASH = 0V}
I_LOAD = 100 µA
FLASH = V_IN, 2x Mode
V_IN = 5.5V, V_EN = 0V
V_FB = 0V, V_IN = 3.6V
V_IN = 3.6V
• FLASH = V_IN, R_SET = 106kΩ
• FLASH = GND
V_FB = 0.3V
•
•
•
• V_IN = 3.6V, FB within 90% of regulation
© 2009 Exar Corporation
2/12
Rev. 2.0.0