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参数资料
| 型号： | LTC3220IPF-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR QVGA DISPLAY 28UTQFN |
| 标准包装： | 91 |
| 拓扑： | 开路漏极，升压（升压），切换式电容器（充电泵） |
| 输出数： | 18 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | LED 闪烁器 |
| 频率： | 850kHz ~ 1.05MHz |
| 电源电压： | 2.9 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-UFQFN 裸露焊盘 |
| 供应商设备封装： | 28-UTQFN（4x4）裸露焊盘 |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 125°C |
LTC3220/LTC3220-1
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C unless otherwise noted.
16
14
12
10
8
6
4
2
1.5x Mode V IN Current vs I CPO
(I VIN – 1.5I CPO )
14
12
10
8
6
4
2
2x Mode V IN Current vs I CPO
(I VIN – 2I CPO )
25
20
15
10
5
ULED Pin Current
vs ULED Pin Voltage
0
0
60
120
180
240
300
360
0
0
60
120
180
240
300
360
0
0
0.05
0.1
0.15
0.2
I CPO (mA)
3220 G13
I CPO (mA)
3220 G14
ULED PIN VOLTAGE (V)
3220 G15
18-LED ULED Display Ef?ciency
25
20
15
10
5
ULED Current vs Input Code
100
90
80
70
60
50
40
30
20
10
vs V IN Voltage
0
0
09
12
1B
24
2D
36
3F
0
2.9 3.225 3.55 3.875 4.2 4.525 4.85 5.175 5.5
INPUT CODE (HEX)
V IN VOLTAGE (V)
3220 G17
3220 G16
PIN FUNCTIONS
ULED1-ULED18 (Pins 1-9,13-21): Current Source Outputs
for Driving LEDs. The LED current can be set from 0mA
to 20mA in 64 steps via software control and internal
6-bit linear DAC. Each output can be disabled by setting
the associated data register REG1 to REG18 low. ULED1
to ULED18 can also be used as I 2 C controlled open-drain
general purpose outputs. Connect unused outputs to
ground.
DV CC (Pin 10): Supply Voltage for All digital I/O lines. This
pin sets the logic reference level of the LTC3220/LTC3220-1.
DV CC will reset the data registers when set below the
undervoltage lockout threshold. A 0.1μF X5R or X7R
ceramic capacitor should be connected to ground.
SCL (Pin 11): I 2 C Clock Input. The logic level for SCL is
referenced to DV CC .
32201fc
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3220IPF-1-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:360mA Universal 18-Channel LED Driver |
| LTC3220IPF-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:360mA Universal 18-Channel LED Driver |
| LTC3220IPF-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:360mA Universal 18-Channel LED Driver |
| LTC3221 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower, Regulated Charge Pump in 2 】 2 DFN |
| LTC3221-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower, Regulated Charge Pump in 2 】 2 DFN |
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