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參數(shù)資料
| 型號(hào)： | CAT3606 |
| 元件分類(lèi)： | LED驅(qū)動(dòng)器 |
| 英文描述： | 6-Channel Low Noise Charge Pump White LED Driver |
| 中文描述： | 6通道低噪聲充電泵白光LED驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大?。?/td> | 598K |
| 代理商： | CAT3606 |
CAT3606
4
Doc. No. 5009, Rev. B
2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
BLOCK DIAGRAM
BASIC OPERATION
At power-up, the CAT3606 starts operation in 1x
mode. If it is able to drive the programmed LED
current, it continues in 1x mode. If the battery
voltage drops to a level where the LED current
cannot be met, the driver automatically switches
into 1.5x mode, to boost the output voltage high
enough to achieve the nominal LED current.
The above sequence is reinitialized each and every
time the chip is powered up or is taken out of
shutdown mode (via EN pin). The use of the Main
and Sub display enable pins (
ENM
or
ENS
) does
not affect the mode of operation.
Figure 1: CAT3606 Functional Block Diagram
LED CURRENT SETTING
The LED current is set by the external resistor R
SET
connected between the RSET pin and ground.
Table 1 lists various LED currents and the associ-
ated R
SET
resistor value for standard 1% precision
surface mount resistors.
)
A
m
(
t
n
e
r
u
C
D
E
L
R
T
E
6
2
1
9
4
4
3
7
2
4
1
S
k
)
9
4
7
8
2
0
1
2
5
0
1
1
0
2
0
3
5
Table 1. RSET Resistor Selection
1.2V
Reference
1MHz
Oscillator
Mode Control
1x mode (LDO)
1.5x Charge Pump
VIN
CIN
+
-
3
≤
VIN
≤
4.2V
Battery
EN
RSET
ENM
ENS
LED1
LED2
LED3
LED4
LED5
LED6
LED Output
Selection
6 Current
Sink Regulators
COUT
20mA
VOUT
C1-
C2-
C1+
C2+
Sub
Main
GND
Current
Setting
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CAT3606HV4 | 6-Channel Low Noise Charge Pump White LED Driver |
| CAT3612 | Programmable 300mA Camera Flash LED Driver |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT3606_08 | 制造商:CATALYST 制造商全稱(chēng):Catalyst Semiconductor 功能描述:6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606HS4 | 制造商:CATALYST 制造商全稱(chēng):Catalyst Semiconductor 功能描述:6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606HV4 | 制造商:CATALYST 制造商全稱(chēng):Catalyst Semiconductor 功能描述:6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606HV4-GT2 | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:6-Channel Low Noise Charge Pump White LED Driver |
| CAT3606HV4-T2 | 功能描述:LED照明驅(qū)動(dòng)器 Lo-Noise Charge Pump White LED 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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