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参数资料
| 型号： | LTC3210EUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 16-QFN |
| 标准包装： | 2,500 |
| 拓扑： | 升压（升压），切换式电容器（充电泵） |
| 输出数： | 5 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 800kHz |
| 电源电压： | 2.9 V ~ 4.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN-EP（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LTC3210
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C.V BAT = 3.6V, C1 = C2 = C3 = C4 = 2.2μF, RM = 30.1k, RC = 24.3k,
ENM = high, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Unused MLED Detection
Test Current
Threshold Voltage
MLED Tied to CPO
V CPO – V MLED
l
l
4
0.5
16
1.5
μA
V
CLED Current
LED Current Ratio (I CLED /I RC )
I CLED = Full Scale
l
6750
7500
8250
A/A
LED Dropout Voltage
CLED Current, 3-Bit Linear DAC
Mode Switch Threshold, I CLED = Full Scale
1 ENC Strobe (FS)
7 ENC Strobes (FS/7)
500
380
54
mV
mA
mA
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
CLOCK Frequency
Mode Switching Delay
I CPO = 0mA
I CPO = 0mA
I CPO = 0mA
V BAT = 3.4V, V CPO = 4.6V (Note 4)
V BAT = 3.2V, V CPO = 5.1V (Note 4)
V BAT
4.55
5.05
0.5
3.15
3.95
0.8
0.4
V
V
V
Ω
Ω
Ω
MHz
ms
CPO Short Circuit Detection
Threshold Voltage
l
0.4
1.3
V
Test Current
CPO = 0V, ENM = ENC = Low
l
10
30
mA
ENC, ENM
V IL
V IH
l
l
1.4
0.4
V
V
I IH
I IL
ENM = ENC = 3.6V
ENM = ENC = 0V
l
l
10
–1
15
20
1
μA
μA
ENC, ENM Timing
t PW
Minimum Pulse Width
l
60
ns
t SD
t EN
Low Time to Shutdown (ENC and ENM = Low)
Current Source Enable Time
(ENC or ENM = High) (Note 5)
l
l
50
50
150
150
250
250
μs
μs
RM, RC
V RM , V RC
I RM , I RC
l
l
1.16
1.20
1.24
70
V
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. Maximum current for continuous
operation is 300mA.
Note 3: The LTC3210E is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4: 1.5x mode output impedance is defined as (1.5V BAT – V CPO )/I OUT .
2x mode output impedance is defined as (2V BAT – V CPO )/I OUT .
Note 5: If the part has been shut down then the initial enable time is about
100μs longer due to the bandgap enable time.
3210fb
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