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參數(shù)資料
| 型號(hào)： | CAT3626HS4-T2 |
| 英文描述： | 6-Channel LED Driver with I2C Interface |
| 中文描述： | 6通道LED驅(qū)動(dòng)器，帶有I2C接口 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 807K |
| 代理商： | CAT3626HS4-T2 |
CAT3626
Doc. No. 5014 Rev. A
8
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
PIN DESCRIPTIONS
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
LEDA1
SDA
SCL
EN
VOUT
VIN
C1-
C1+
C2-
C2+
GND
LEDC2
LEDC1
LEDB2
LEDB1
LEDA2
TAB
Function
Cathode terminal of LED A1
I
2
C Serial data input/output
I
2
C Serial clock input
Enable input
Charge pump output connected to the LED anodes
Supply voltage
Bucket capacitor 1 terminal
Bucket capacitor 1 terminal
Bucket capacitor 2 terminal
Bucket capacitor 2 terminal
Ground reference
Cathode terminal of LED C2
Cathode terminal of LED C1
Cathode terminal of LED B2
Cathode terminal of LED B1
Cathode terminal of LED A2
Connect to Ground on PCB
PIN FUNCTION
VIN
is the supply pin for the charge pump. A small
1
μ
F ceramic bypass capacitor is required between the
VIN pin and ground near the device. The operating
input voltage range is from 2.2V to 5.5V. Whenever
the input supply falls below the undervoltage threshold
(2V), all LEDs channels will be automatically disabled.
EN
is the enable logic input for the driver. Guaranteed
levels of logic high and logic low are set at 1.3V and
0.4V respectively. When EN is initially taken high, the
device becomes enabled and all LED currents remain
at 0mA. To place the device into zero current
shutdown mode, the EN pin must be held low.
SDA
is the I
2
C serial data line. This is a bidirectional
line allowing data to be written into and read from the
four registers in the driver. Registers RegA/B/C set the
LED current in each pair of channels, while RegEn
sets the On/Off state independently of each channel.
SCL
is the I
2
C serial clock input.
VOUT
is the charge pump output that is connected to
the LED anodes. A small 1
μ
F ceramic bypass
capacitor is required between the VOUT pin and
ground near the device.
GND
is the ground reference for the charge pump.
The pin must be connected to the ground plane on the
PCB.
C1+, C1-
are connected to each side of the 1
μ
F
ceramic bucket capacitor C1.
C2+, C2-
are connected to each side of the 1
μ
F
ceramic bucket capacitor C2.
LEDxx
provide the internally regulated current to the
six LED cathodes. These pins enter a high-impedance
zero-current state whenever the device is placed in
shutdown mode. In applications using less than six
LEDs, the unused channels should be disabled
through the RegEn register.
TAB
is the exposed pad underneath the package. For
best thermal performance, the tab should be soldered
to the PCB and connected to the ground plane.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT3626HV4 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4G | 制造商:Catalyst Semiconductor 功能描述: |
| CAT3626HV4-GT2 | 功能描述:LED照明驅(qū)動(dòng)器 LED DR CH PUMP 6 CH I2C 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3626HV4-GT3 | 功能描述:LED照明驅(qū)動(dòng)器 LED Driver,Char pump,6 ch I2C I/F 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3626HV4-T2 | 功能描述:LED照明驅(qū)動(dòng)器 6-Ch 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
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