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Micrel, Inc.
Absolute Maximum Ratings (1)
Supply Voltage (V IN ), Enable (V EN ).................... .. ......... + 42V
Switch Voltage (V SW )..................................... ? 0 .3 V to + 42V
Regulated Voltage (V DD ) ................................. ? 0 .3V to + 6V
Over-Voltage Protection (V OVP ) .................... ? 0 .3 V to + 42V
Switch Voltage (V OVPS ) ................................. ? 0 .3 V to + 42V
DFS Voltage (V DFS ) ............................ ? 0.3V to (V DD + 0.3V)
RSLP (V RSLP ) ...................................... ? 0.3V to (V DD + 0.3V)
MODE Voltage (V MODE ) ...................... ? 0.3V to (V DD + 0.3V)
FSW Voltage (V FSW ) ........................... ? 0.3V to (V DD + 0.3V)
DRC Voltage (V DR C ) ........................... ? 0.3V to (V DD + 0.3V)
CRV Voltage (V CRV )............................ ? 0.3V to (V DD + 0.3V)
CINT Voltage (V CINT ) .......................... ? 0.3V to (V DD + 0.3V)
ISET Voltage (V ISET ) ........................... ? 0.3V to (V DD + 0.3V)
Comp Voltage (V COMP )........................ ? 0.3V to (V DD + 0.3V)
IO1–IO6 Voltage (V IO1-IO6 ) ..... ........................ ? 0.3V to + 42V
AGND to PGND ................ . ... ....................... ? 0.3V to + 0.3V
MIC3263
Operating Ratings (2)
Supply Voltage (V IN )..................... .................... + 6V to + 40V
Enable (V EN ) ................................. .........................0 to + 40V
MODE (V MODE ).............................. ........................0 to + 5.5V
DFS (V DFS )............................................................ 0 to + 5.5V
DRC (V DRC )................................... ........................0 to + 5.5V
Junction Temperature (T J ) ........................ ? 40°C to + 125°C
Junction Thermal Resistance
24-Pin MLF? ( θ JA ) .............................................43°C/W
Lead Temperature (soldering, 10 ─ 20s) ................... 260°C
Storag e T emperatu re (T S )............. ............ ? 65°C to + 150°C
ES D Rat ing (3) ..................... ............ .............................. 1.5kV
El ectri cal Charac teristics (4)
V IN = 12V ; L = 22 μ H, C OUT =10 μ F , T A = 25°C, B OLD values indicate –40°C ≤ T J ≤ +125°C, unless note d.
Symbol
Parameter
Condition
Min
Typ
Max
Units
V IN
V IN
I VIN
Supply Voltage Range
Supply Voltage R ange
Quiescent Current
30mA 8 LEDs/Channel, All s ix Ch an nel s
30mA 6 LEDs/Channel, All six Ch an nels
Not Switching, V OVP = 4V
8
6
6.5
40
40
10
V
V
mA
V DDREG
VDD Regulation
V IN = 6V to 40V, I DD = 0mA to 6mA
4.5
5
5.5
I SD
Shutdown Current (DC Pin Low)
V EN = 0V
6.5
20
μ A
Current Control
IO1 ─ IO 6
Minimum IO (1–6 ) Volt age for
Voltage on IO (1–6) if Only On e C han ne l i s Us ed
1.2
V
operation to Sink 30mA
and I SET = 30mA
V OS
Maximum Output Volta ge
Overshoot when Current
22 μ H, 10 μ F
3
%
Sources are OFF in PWM Dim
Mode
I LEDMATCH
I LEDSET
F DIMR
Channel Current Matching
Initial Current Setting Accuracy
PWM Dimming Frequency
Adjust Range
I LED = 30mA and Dimming Rati o = 100 %
V IO = 1.2V on All Channels
R SET = 2k
I LED = 30mA
MODE = 0V, R DFS = 400k ? , Frequency = 100Hz
MODE = 0V, R DFS = 32k ? , Frequency = 1.2kHz
MODE = V DD , R DFS = 400k ? , Frequency = 1.6kHz
MODE = V DD , R DFS = 32k ? , Frequency = 20kHz
? 3
? 2
? 3
0.1
0
0
+ 3
+ 2
+ 3
20
%
%
kHz
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
4. Specification for packaged product only.
January 2010
5
M9999-012110
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