LTC3212 Datasheet, PDF (2/12 Pages) Linear Technology – RGB LED Driver and Charge Pump

LTC3212
Absolute Maximum Ratings
(Note 1)
V_IN to GND.................................................... –0.3V to 6V
CPO to GND.................................................. –0.3V to 6V
LEDEN ............................................. –0.3V to V_IN + 0.3V
I_CPO (Note 2)...........................................................75mA
I_LED(R,G,B) (Note 2)..................................................30mA
CPO Short-Circuit Duration.............................. Indefinite
Operating Temperature Range
(Notes 3, 4).......................................... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
pIN CONFIGURATION
TOP VIEW
CP 1
CPO 2
LEDEN 3
I_SETB 4
I_SETR 5
I_SETG 6
12 VIN
11 CM
10 GND
13
9 LEDB
8 LEDR
7 LEDG
DDB PACKAGE
12-LEAD (3mm × 2mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 76°C/W
EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
order information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3212EDDB#PBF
LTC3212EDDB#TR
LCWM
12-Lead (3mm × 2mm) Plastic DFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
Electrical Characteristics The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.6V.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_IN Operating Voltage
I_VIN Operating Current
V_IN Shutdown Current
LED Current
I_CPO = 0mA, 1x Mode
I_CPO = 0mA, 2x Mode
LEDEN = Low
● 2.7
5.5
V
0.4
mA
2.0
mA
3
8
µA
Current Ratio (I_LEDG/I_SETG)
Current Ratio (I_LEDB/I_SETB)
Current Ratio (I_LEDB/I_SETG)
Current Ratio (I_LEDR/I_SETR)
Current Ratio (I_LEDR/I_SETG)
I_LED Dropout Voltage (V_ILED)
t_EN
Mode Switching Delay
I_SETG = 78µA
173
192
210
A/A
I_SETB = 78µA
173
192
210
A/A
White Mode, I_SETG = 78µA
128
144
160
A/A
I_SETR = 78µA
173
192
210
A/A
White Mode, I_SETG = 78µA
154
171
186
A/A
Mode Switching Theshold, I_LED = 15mA
150
mV
Current Source Enable Time (LEDEN = High) (Note 5) l
400
µs
50
120
250
µs
Charge Pump (CPO)
Charge Pump Output Voltage Clamp
5.1
V
1x Mode Output Impedance
(Notes 6, 7)
5
Ω
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