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参数资料
| 型号： | LTC3220IPF-1#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/20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
PIN FUNCTIONS
SDA (Pin 12): Input Data for the Serial Port. Serial data is
shifted in one bit per clock cycle to control the LTC3220/
LTC3220-1. The logic level is referenced to DV CC .
C1P, C2P, C1M, C2M (Pins 27, 26, 23, 22): Charge Pump
Flying Capacitor Pins. A 2.2μF X7R or X5R ceramic ca-
pacitor should be connected from C1P to C1M and C2P
to C2M.
V IN (Pin 24): Supply Voltage for the Entire Device. This pin
must be bypassed with a single 2.2μF low ESR ceramic
capacitor.
BLOCK DIAGRAM
RST (Pin 25): Active Low Reset Input. RST Resets all
internal registers and forces LTC3220/LTC3220-1 into
shutdown mode.
CPO (Pin 28): Output of the Charge Pump. Used to power
all LEDs. A 4.7μF X5R or X7R ceramic capacitor should
be connected to ground.
Exposed Pad (Pin 29): Ground. The Exposed Pad must
be soldered to PCB ground.
27
23
26
22
850kHz
C1P
C1M
C2P
C2M
EXPOSED
PAD
29
24
V IN
OSCILLATOR
CHARGE PUMP
CPO
28
ULED1
1
1.22V
18
ULED2
ULED3
ULED4
ULED5
2
3
4
5
10
25
DV CC
RST
CONTROL
LOGIC
18 UNIVERSAL
CURRENT SOURCES
AND DACS
ULED6
ULED7
ULED8
6
7
8
MASTER/SLAVE
REG
12
11
SDA
SCL
SHIFT REGISTER
ULED18 ULED17 ULED16 ULED15 ULED14 ULED13 ULED12
ULED11
ULED10
ULED9
21
20
19
18
17
16
15
14
13
9
3220 BD
32201fc
7
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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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