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参数资料
| 型号： | LTC3216EDE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGE PUMP LED 12-DFN |
| 标准包装： | 91 |
| 应用： | 转换器，高电流 LED |
| 输入电压： | 2.9 V ~ 4.4 V |
| 输出数： | 1 |
| 输出电压： | 多重 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-DFN（4x3） |
| 包装： | 管件 |
LTC3216
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.6V, C IN = C1 = C2 = 2.2μF, C CPO = 4.7μF.
PARAMETER
2x Mode Output Impedance
CLK Frequency
CONDITIONS
V IN = 3.2V, V CPO < 5.1V, C1 = C2 = 2.2μF
●
MIN
0.6
TYP
1.7
0.9
MAX
1.2
UNITS
Ω
MHz
CPO Short-Circuit Detection
Threshold Voltage
Test Current
EN1/EN2 = High
EN1 = EN2 = Low, V CPO = 0V
●
●
0.5
10
1.5
30
V
mA
EN1, EN2
High Level Input Voltage (V IH )
Low Level Input Voltage (V IL )
●
●
1.4
0.4
V
V
Input Current (I IH )
Input Current (I IL )
●
●
–1
–1
1
1
μA
μA
I SET1 , I SET2
V ISET1 , V ISET2
I SETX = 50μA
●
1.195
1.22
1.245
V
I ISET1 , I ISET2
●
321
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Based on long-term current density limitations. Assumes an
operating duty cycle of ≤ 10% under absolute maximum conditions for
durations less than 10 seconds. Max current for continuous operation is
500mA.
Note 3: The LTC3216E is guaranteed to meet performance speci?cations
from 0°C to 85°C. Speci?cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS
(T A = 25°C unless otherwise speci?ed)
I LED Dropout Voltage
vs LED Current
I LED Pin Current
vs I LED Pin Voltage
I LED vs R SET
0.8
V IN = 3.6V
600
1200
0.7
0.6
0.5
0.4
0.3
0.2
0.1
500
400
300
200
100
I LED = 500mA
400mA
300mA
200mA
100mA
1000
800
600
400
200
0
0
200
400
600
800
1000
0
0
0.2
0.4 0.6 0.8
1.0
0
0
5
10
15
20
25
30
35
40
LED CURRENT (mA)
3216 G01
I LED PIN VOLTAGE (V)
3216 G02
R SET (kΩ)
1573 G03
3216fc
3
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