參數(shù)資料
型號(hào)： LTC3216EDE
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 1A Low Noise High Current LED Charge Pump with Independent Torch/Flash Current Control
中文描述： 1.5 A SWITCHED CAPACITOR REGULATOR, PDSO12
封裝： 3 X 4 MM, PLASTIC, MO-229-WGED, DFN-12
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 102K
代理商： LTC3216EDE
LTC 3216
2
3216fa
12
11
10
9
8
7
1
2
3
4
5
6
C1
–
GND
C2
–
VIN
EN2
EN1
C2
+
C1
+
CPO
I
SET1
I
LED
I
SET2
TOP VIEW
DE12 PACKAGE
12-LEAD (4mm
×
3mm) PLASTIC DFN
EXPOSED PAD IS GND (PIN 13)
MUST BE SOLDERED TO PCB
T
JMAX
= 125
°
C,
θ
JA
= 43
°
C/W
13
V
IN
to GND................................................–0.3V to 5.5V
CPO to GND..............................................–0.3V to 5.5V
EN2, EN1 .........................................–0.3V to V
IN
+ 0.3V
I
CPO
, I
ILED
(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
ORDER PART
NUMBER
LTC3216EDE
ABSOLUTE AXI U RATI GS
W
(Note 1)
W
W
PACKAGE/ORDER U
U
W
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
IN
= 3.6V, C
IN
= C1 = C2 = 2.2
μ
F, C
CPO
= 4.7
μ
F
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DFN PART
MARKING
3216
PARAMETER
Input Power Supply
V
IN
Operating Voltage
I
VIN
Operating Current
CONDITIONS
MIN
TYP
MAX
UNITS
G
2.9
4.4
V
I
CPO
= 0mA, 1x Mode
I
CPO
= 0mA, 1.5x
I
CPO
= 0mA, 2x Mode
EN2 = EN1 = LOW
300
7
9.2
2.5
μ
A
mA
mA
μ
A
I
VIN
Shutdown Current
LED Current
LED Current Ratio (I
LED
/I
SET1/2
)
I
LED
Dropout Voltage
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
EN1, EN2
High Level Input Voltage (V
IH
)
Low Level Input Voltage (V
IL
)
Input Current (I
IH
)
Input Current (I
IL
)
7
I
LED
= 200mA to 800mA
Mode Switch Threshold, I
LED
= 200mA
EN1 = HIGH, EN2 = LOW
EN1 = LOW or HIGH, EN2 = HIGH
EN to LED Current On
G
3120
3250
120
150
2
130
3380
mA/mA
mV
ms
ms
μ
s
I
CPO
= 0mA
I
CPO
= 0mA
I
CPO
= 0mA
V
IN
4.6
5.1
0.25
1.5
1.7
0.9
V
V
V
V
IN
= 3.4V, V
CPO
< 4.6V, C1 = C2 = 2.2
μ
F
V
IN
= 3.2V, V
CPO
< 5.1V, C1 = C2 = 2.2
μ
F
G
0.6
1.2
MHz
G
1.4
V
V
G
0.4
1
1
G
–1
–1
μ
A
μ
A
G
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