SP6682 Datasheet, PDF (2/13 Pages) Sipex Corporation – High Efficiency Charge Pump Regulator for White LEDs

SP6682
High Efficiency White LED Charge Pump Regulator
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_MODE, V_OUT, EN/PWM ............................ -0.3V to 6.0V
V_IN - V_OUT .............................................................. 0.7V
Output Current I_OUT ............................................ 300mA
Power Dissipation (10-pin MSOP)
(derated 8.84mW/°C above +70°C) .....................720mW
Junction Temperature Range .............................. +125°C
Storage Temperature ..............................-65°C to 150°C
ESD Rating (HBM - Human Body Model) .................... 2kV
ELECTRICAL SPECIFICATIONS
Specifications with standard type are for an Operating Ambient Temperature of T_A = 25°C only; limits applying over the full
Operating Ambient 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_A = 25°C, and are provided
for reference purposes only. Unless otherwise indicated, V_IN = 2.7V to 5.0V, C₁=C₂=C₄=C₅=2.2µF (ceramic, ESR=0.03Ω),
C₃=0.1µF (ceramic), T_A= –40°C to 85°C.
Parameter
Input Voltage
Quiescent Current
Shutdown Current
Oscillator Frequency
VFB Reference Voltage
Charge Pump Output Resistence
V_MODE Threshold Voltage
Hysteresis for Mode Transition
Voltage
V_MODE Pin Current
EN/PWM Logic Low
EN/PWM Logic High
EN/PWM Pin Current
FB Pin Current
V_OUT Turn-On Time
Min.
2.7
0.42
0.275
1.15
1.6
Typ.
1.2
0.60
0.306
11
1.25
30
0.01
0.01
175
Max.
5.5
3
1.5
0.78
0.337
18
1.35
0.5
0.4
0.5
0.5
500
Units
V
mA
µA
MHz
V
Ω
V
mV_PP
µA
V
V
µA
µA
µs
Conditions
•
• V_IN=4.2V, V_OUT=3.6V, I_OUT=100 µA
• EN/PWM=0V, V_IN=5.5V
• V_IN=3.6V
•
•
FB=0V, V_IN=3.6V, I_OUT=20mA,
V_MODE=High
V_IN falling @ 25°C
V_IN = 3.6V @ 25°C
• V_MODE=1.25V
•
•
• V_EN/PWM=4.2V
• V_FB=1V
• V_IN=3.6V, FB within 90% regulation
PIN ASSIGNEMENT
© 2009 Exar Corporation
Fig. 2: SP6682 Pin Assignement
2/13
Rev. 2.0.0