收藏本站
CAT3649
Figure 2. ADIM Dimming Timing Diagram (no C PWM , PWM high)
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Notes 2 and 3)
Parameter
Quiescent Current (excluding load)
Symbol
I Q
Conditions
1x mode
Min
Typ
1.4
Max
2
Unit
mA
1.33 x mode, V IN = 3 V
1.5x mode, V IN = 2.8 V
2x mode, V IN = 2.6 V
2.2
2.7
2.8
4
4
4
Shutdown Current
LED Current Setting
I QSHDN
I LED ? SET
V ADIM = 0 V
After ADIM is first enabled
(full scale LED current)
25
1
m A
mA
LED Current Accuracy
LED Channel Matching
CPWM Pin Regulated Voltage
Output Resistance (open loop)
I LED ? ACC
I LED ? DEV
V CPWM
R OUT
(I LEDx – I NOMINAL ) / I NOMINAL
25 mA I LED setting
(I LED ? I LEDAVG ) / I LEDAVG
25 mA I LED setting
V PWM = V IN
1x mode
? 10
? 5
± 2
± 1.5
0.6
0.8
+10
+5
%
%
V
W
1.33x mode, V IN = 3 V
1.5x mode, V IN = 2.7 V
2x mode, V IN = 2.4 V
5
5
10
Charge Pump Frequency
F OSC
1.33x and 2x mode
0.8
1
1.3
MHz
1.5x mode
1
1.3
1.6
Output short circuit Current Limit
Input Current Limit
1x to 1.33x Transition Thresholds at any LED pin
I SC_MAX
I IN_MAX
V LEDTH
V OUT < 0.5 V
V OUT > 1 V, 1x mode
25 mA LED current per channel
50
250
100
mA
mA
mV
ADIM and PWM Pins
? Pull ? down resistance
? Logic High Level
? Logic Low Level
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO) threshold
R PD
V HI
V LO
T SD
T HYS
V UVLO
1.3
20
150
20
2.0
0.4
M W
V
V
_ C
_ C
V
2. Typical values are at V IN = 3.6 V, PWM = ADIM = High, T AMB = 25 ° C.
3. Min and Max values are over recommended operating conditions unless specified otherwise.
http://onsemi.com
3
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
CAT4139AEVB BOARD EVALUATION DPP CAT4139A
CAT4201AEVB BOARD EVALUATION DPP CAT4201A
CAT4238AEVB BOARD EVALUATION DPP CAT4238A
CAT4240AEVB BOARD EVALUATION DPP CAT4240A
CB1A-R-WM-12V RELAY AUTOMOTIVE SPST 40A 12V
CB3127-000 D-1744-03-LF
CB5065-000 HEAT SHRINK TUBING
CB5143-000 HEAT SHRINK TUBING
相关代理商/技术参数
CAT3649HV3-GT2 功能描述:LED照明驱动器 6 channel quad mode LED Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
CAT3661HV3-GT2 功能描述:LED照明驱动器 RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
CAT37 制造商:TI 制造商全称:Texas Instruments 功能描述:CMOS White LED Driver Boost Converter
CAT37_05 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:CMOS White LED Driver Boost Converter
CAT37_08 制造商:TI 制造商全称:Texas Instruments 功能描述:CMOS White LED Driver Boost Converter
CAT37EKK-TE7 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:CMOS White LED Driver Boost Converter
CAT37RD4-TE13 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:CMOS White LED Driver Boost Converter
CAT37TDI 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:CMOS White LED Driver Boost Converter