LTC3215 Linear Technology, LTC3215 Datasheet - Page 2

• Manufacturer Part Number: LTC3215
• Description: 700mA Low Noise High Current LED Charge Pump
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LTC3215
(Note 1)
V
CPO to GND ............................................. –0.3V to 5.5V
EN ................................................... –0.3V to V
I
CPO Short-Circuit Duration ............................ Indefinite
Storage Temperature Range ................. –65°C to 125°C
Operating Temperature Range (Note 3) .. –40°C to 85°C
temperature range, otherwise specifications are at T
2
ELECTRICAL CHARACTERISTICS
PARAMETER
Input Power Supply
V
I
I
LED Current
LED Current Ratio (I
I
Mode Switching Delay (LED Warmup Time)
LED Current On Time
Charge Pump (CPO)
1x Mode Output Voltage
1.5x Mode Output Voltage
2x Mode Output Voltage
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
CLK Frequency
EN
High Level Input Voltage (V
Low Level Input Voltage (V
Input Current (I
Input Current (I
CPO
VIN
VIN
LED
IN
IN
Operating Voltage
Operating Current
Shutdown Current
Dropout Voltage
to GND ............................................... –0.3V to 5.5V
, I
ILED
(Note 2) ........................................... 1000mA
IH
IL
)
)
LED
/I
W
SET
IL
IH
)
)
)
W W
U
A
= 25°C. V
IN
CONDITIONS
I
I
I
EN = LOW
I
Mode Switch Threshold, I
EN to LED Current On
I
I
I
V
V
CPO
CPO
CPO
LED
CPO
CPO
CPO
IN
IN
+ 0.3V
The
= 3.4V, V
= 3.2V, V
= 200mA to 600mA
= 0mA, 2x Mode
= 0mA, 1x Mode
= 0mA, 1.5x
= 0mA
= 0mA
= 0mA
●
IN
denotes the specifications which apply over the full operating
= 3.6V, C
CPO
CPO
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
< 4.6V, C1 = C2 = 2.2µF
< 5.1V, C1 = C2 = 2.2µF
10-LEAD (3mm × 3mm) PLASTIC DFN
IN
CPO
I
I
C2
C1
LED
SET
= C1 = C2 = 2.2µF, C
+
+
EXPOSED PIN (PIN 11) IS GND
LED
T
MUST BE SOLDERED TO PCB
JMAX
1
2
3
4
5
= 200mA
= 125°C, θ
DD PACKAGE
TOP VIEW
11
JA
= 43°C/W
10
9
8
7
6
●
●
●
●
●
●
●
CPO
C1
GND
C2
V
EN
IN
–
–
3139
= 4.7µF.
MIN
2.9
0.6
1.4
–1
–1
U
3270
0.25
TYP
300
120
130
9.2
2.5
2.5
V
4.6
5.1
1.5
1.7
0.9
7
ORDER PART
IN
LTC3215EDD
MARKING
NUMBER
DD PART
W
LBPX
3400
MAX
4.4
1.2
0.4
7
1
1
mA/mA
UNITS
U
3215f
MHz
mA
mA
mV
ms
µA
µA
µA
µA
µs
Ω
Ω
Ω
V
V
V
V
V
V