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參數資料
| 型號： | CAT3612 |
| 英文描述： | Programmable 300mA Camera Flash LED Driver |
| 中文描述： | 可編程的300mA相機閃光燈LED驅動器 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 461K |
| 代理商： | CAT3612 |
Programmable 300mA Camera Flash LED Driver
CAT3612
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 5016 Rev. A
FEATURES
Dual matched regulated LED channels
300mA output current (150mA per channel)
1-wire EZDim
TM
Programmable LED Current
32 accurate dimming levels
Power efficiency up to 90%
Fractional pump 1x/1.5x
Low noise input ripple
Fixed High Frequency Operation 1MHz
“Zero” Current Shutdown Mode
Soft start and current limiting
Short circuit protection
Thermal shutdown protection
12-lead TDFN 3mm x 3mm package
APPLICATION
Camera Flash
Cellular Phones
Digital Still Cameras
ORDERING INFORMATION
Part Number
Package
Quantity
per Reel
Package
Marking
CAT3612HV2-T2 TDFN-12 3x3
Green *
2000
HAAD
Note *:
Plated lead finish is Matte Tin.
For other lead finish option, please contact factory.
PRODUCT DESCRIPTION
The CAT3612 is a high-efficiency 1x/1.5x fractional
charge pump with programmable current in two LED
channels. Each channel delivers accurate regulated
current up to 150mA and make CAT3612 ideal for
driving one or two flash LEDs.
Low noise operation is achieved by operating at a
constant switching frequency of 1MHz which allows
the use of small external ceramic capacitors. The
1x/1.5x fractional charge pump supports a wide
range of input voltages from 3V to 5.5V with
efficiency up to 90%, and is ideal for Li-Ion battery
powered devices.
The EN/DIM logic input provides a 1-wire EZDim
TM
interface for dimming control of the LEDs. When
enabled, pulsing the EN/DIM reduces the LED
current on each negative edge in 31 linear steps
from 150mA down to zero current.
The device is available in the tiny 12-lead thin DFN
3mm x 3mm package with a max height of 0.8mm.
PIN CONFIGURATION
TYPICAL APPLICATION CIRCUIT
12-lead TDFN 3mm x 3mm
Top View
Note:
Unused LED channel must be connected to VOUT
相關PDF資料 |
PDF描述 |
|---|---|
| CAT3612HV2-T2 | Programmable 300mA Camera Flash LED Driver |
| CAT3616HV4 | 6-Channel Charge Pump LED Driver with EZDimTM |
| CAT3616HV4-T2 | 6-Channel Charge Pump LED Driver with EZDimTM |
| CAT3626HS4-T2 | 6-Channel LED Driver with I2C Interface |
| CAT3626HV4-T2 | 6-Channel LED Driver with I2C Interface |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT3612_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:Programmable 300mA Camera Flash LED Driver |
| CAT3612HV2-GT2 | 功能描述:LED照明驅動器 LED Driver,Charge pump,2 ch RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3612HV2-T2 | 功能描述:LED照明驅動器 Prog Camera Flash LED Driver RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3614 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4-Channel 1-Wire LED Driver in 3x3mm Package |
| CAT3614_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:4-Channel 1-Wire LED Driver in 3 x 3mm Package |
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