LTC3216 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3216
Linear Technology
'LTC3216' PDF : 12 Pages View PDF
LTC3216
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN to GND ................................................ –0.3V to 5.5V
CPO to GND .............................................. –0.3V to 5.5V
EN2, EN1...........................................–0.3V to VIN + 0.3V
ICPO, IILED (Note 2).............................................1500mA
CPO Short-Circuit Duration.............................. Indefinite
Operating Temperature Range (Note 3).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
PIN CONFIGURATION
C2+ 1
C1+ 2
CPO 3
ISET1 4
ILED 5
ISET2 6
TOP VIEW
12 C1–
11 GND
10 C2–
13
9 VIN
8 EN2
7 EN1
DE12 PACKAGE
12-LEAD (4mm × 3mm) PLASTIC DFN
EXPOSED PAD IS GND (PIN 13)
MUST BE SOLDERED TO PCB
TJMAX = 125°C, θJA = 43°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3216EDE#PBF
LTC3216EDE#TRPBF
3216
12-Lead (4mm × 3mm) 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 l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, CIN = C1 = C2 = 2.2μF, CCPO = 4.7μF.
PARAMETER
CONDITIONS
MIN TYP
MAX
UNITS
Input Power Supply
VIN Operating Voltage
IVIN Operating Current
IVIN Shutdown Current
LED Current
LED Current Ratio (ILED/ISET1/2)
ILED Dropout Voltage
Mode Switching Delay
(LED Warmup Time)
ICPO = 0mA, 1x Mode
ICPO = 0mA, 1.5x
ICPO = 0mA, 2x Mode
EN2 = EN1 = LOW
ILED = 200mA to 800mA
Mode Switch Threshold, ILED = 200mA
EN1 = HIGH, EN2 = LOW
EN1 = LOW or HIGH, EN2 = HIGH
● 2.9
4.4
300
7
9.2
2.5
7
● 3120 3250
3380
120
150
2
V
μA
mA
mA
μA
mA/mA
mV
ms
ms
LED Current On Time
EN to LED Current On
130
μs
Charge Pump (CPO)
1x Mode Output Voltage
1.5x Mode Output Voltage
2x Mode Output Voltage
1x Mode Output Impedance
ICPO = 0mA
ICPO = 0mA
ICPO = 0mA
VIN
V
4.6
V
5.1
V
0.25
Ω
1.5x Mode Output Impedance
VIN = 3.4V, VCPO < 4.6V, C1 = C2 = 2.2μF
1.5
Ω
3216fc
2
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