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參數(shù)資料
| 型號： | CAT3616HV4 |
| 英文描述： | 6-Channel Charge Pump LED Driver with EZDimTM |
| 中文描述： | 6通道電荷泵式LED驅(qū)動器與EZDimTM |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 508K |
| 代理商： | CAT3616HV4 |
CAT3616
Doc. No. 5018 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
TAB
Name
MAIN1
ENM
ˉˉˉ
EN
VOUT
VIN
C1-, C1+
C2-, C2+
GND
SUB2
SUB1
MAIN4
MAIN3
MAIN2
TAB
Function
MAIN1 LED cathode terminal (if not used, connect to VOUT)
1
Enable main LED (MAIN1 to MAIN4) input. Active low
Enable sub LED (SUB1, SUB2) input. Active low
Device enable input. Active high.
Charge pump output connected to the LED anodes
Supply voltage.
Bucket capacitor 1 terminal
Bucket capacitor 2 terminal
Ground reference
SUB2 LED cathode terminal (if not used, connect to VOUT)
1
SUB1 LED cathode terminal (if not used, connect to VOUT)
1
MAIN4 LED cathode terminal (if not used, connect to VOUT)
1
MAIN3 LED cathode terminal (if not used, connect to VOUT)
1
MAIN2 LED cathode terminal (if not used, connect to VOUT)
1
Connect to Ground on PCB
Note:
(1) MAIN1 to MAIN4, SUB1, SUB2 pins should not be left floating. They should be connected to the LED cathode, or tied to VOUT pin if not
used.
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 up to 5.5V. When the input
supply falls below the undervoltage threshold (2V), all
LED channels are disabled.
EN
is the enable logic input. Logic level for high and
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 for 1.5ms or more.
ENM
, ENS
logic inputs for respectively main and sub LED
channels. The falling edge of the first pulse applied to
ENM
and ENS
sets the current for respectively the
main and sub LED channels to their full scale of
31mA. On each consecutive falling edge of the pulse
applied to ENM
and ENS
, the LED current is
decreased by 1mA step. On the 32
nd
pulse, the LED
current is set to zero. The next pulse resets the
current back to the full scale of 31mA.
are the active low enable/ dimming control
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.
MAIN1-4, SUB1-2
provide the internal regulated
current for each of the 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 wired directly to VOUT. This
ensures the channel is automatically disabled
dissipating less than 200μA.
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 |
|---|---|
| CAT3616HV4-GT2 | 功能描述:LED照明驅(qū)動器 LED Driver,Charge pump,6 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3616HV4-T2 | 功能描述:LED照明驅(qū)動器 LED Driver,Charge pump,6 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| CAT3626 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel LED Driver with I2C⑩ Interface |
| CAT3626_08 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:6-Channel LED Driver with I2C⑩ Interface |
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