LTC3214 Linear Technology, LTC3214 Datasheet - Page 2

• Manufacturer Part Number: LTC3214
• Description: 500mA Camera LED Charge Pump
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LTC3214
(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)
Charge Pump Output Clamp 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 (V
to GND ............................................... –0.3V to 5.5V
, I
ILED
(Note 2) ............................................. 600mA
IH
IL
)
)
LED
/I
W
ILED
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
V
V
CPO
CPO
CPO
LED
IN
EN
+ 0.3V
The
= 3V
= 3.6V
= 150mA to 500mA
= 0mA, 2x Mode
= 0mA, 1x Mode
= 0mA, 1.5x
●
IN
denotes the specifications which apply over the full operating
= 3.6V, C
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
ORDER PART NUMBER
IN
= C1 = C2 = 2.2µF, C
LTC3214EDD
LED
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB GND
= 200mA
10-LEAD (3mm × 3mm) PLASTIC DFN
CPO
I
I
C2
C1
LED
SET
+
+
http://www.linear.com/leadfree/
T
JMAX
1
2
3
4
5
= 125°C, θ
●
●
●
●
●
●
DD PACKAGE
CPO
TOP VIEW
11
2715
= 4.7µF.
MIN
2.9
0.6
1.4
–1
JA
= 43°C/W
U
DD PART MARKING
10
9
8
7
6
2950
0.70
14.4
TYP
980
100
4.8
6.7
2.5
2.5
3.2
0.9
C1
GND
C2
V
EN
40
5
4
IN
–
–
LBVQ
W
3190
MAX
4.5
7.5
1.2
0.4
20
1
mA/mA
UNITS
U
3214f
MHz
mA
mA
mV
ms
µA
µA
µA
µA
µs
Ω
Ω
Ω
V
V
V
V