- 您现在的位置：买卖IC网 > Sheet目录311 > AS3693A-ZQFT (ams)IC LED DVR 16CH W/PWM 48-QFN
AS3693A QFN48
austria micro systems
7
Block Description
7.1 Feedback Circuit
The AS3693A supports a flexible feedback selection for external DCDC – supplies. Beside the default setup for
RGGB lighting, each channel can be assigned to an external DCDC feedback loop. This feedback circuit is
important to reduce power dissipation of the device.
Table 6 – Feedback Control
Addr: 04h
Feedback control
Enables and Disables the Different Feedback modes
Bit
0
1
Bit Name
Feedback on
Feedback on PWM
Default
0
0
Access
R/W
R/W
Description
1 = Feedback circuit is active
0 = The entire feedback loop is disabled
The feedback regulator is only active, if PWM = 1
Enables open led detection comparators
2
Open_Led_Det_on
0
R/W
0 = Open Led Detection disabled
1 = Open Led Detection enabled. Level: Ucurrx = 100mV
Enables short detection
3
Short_det_on
0
R/W
0 = Short detection off
1 = Sort Detection on
4
Short Led Detect
Voltage(VSL)
R/W
Short led detection trip voltage ( debounced 3mS )
00 = 2V
01 = 3V
Trip point voltage of the DCDC-feedback regulation
circuit. (NOTE: This value has to be adjusted if analog ref
7:6
DCDC_regulation_trip
Point (VC)
00
R/W
select bit is changed.)
00 = 0.5V (Note use for Currents up to 70 mA)
01 = 0.6V (Note use for Currents up to 80 mA)
10 = 0.8V (Note use for Currents up to 110 mA)
11 = 1.0V (Note use for Currents up to 150 mA)
www.austriamicrosystems.com
Revision 1.14 / 2010
9 - 39
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
AS3693B-ZTQT
IC LED CTLR 16-CH W/PWM 64-TQFP
AS3693B-ZTQW
IC LED CTLR 16-CH W/PWM 64EPTQFP
AS5040 PB
BOARD PROGRAM AS5040
AS5043 PB
BOARD PROGRAM AS5043
AS5045 PB
BOARD PROGRAM AS5045
AS5134 PB
BOARD PROGRAM AS5134
AS5140 PB
BOARD PROGRAM AS5140
ASDMB-ADAPTER-KIT
ASDMB MEMSPEED P II OSC KIT
相关代理商/技术参数
AS3693A-ZTQT
功能描述:IC LED DVR 16CH W/PWM 64-ETQFP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C
AS3693B DB
制造商:ams 功能描述:BOARD DEMO FOR AS3693B 制造商:ams 功能描述:Demo Board
AS3693B DEMOBOARD
制造商:ams 功能描述:Demo Board
AS3693B QFN DB
功能描述:AS3693B 16, Non-Isolated Output LED Driver Evaluation Board 制造商:ams 系列:- 零件状态:有效 电流 - 输出/通道:- 输出和类型:16，非隔离 电压 - 输出:0.4 V ~ 50 V 特性:- 电压 - 输入:- 所含物品:板 使用的 IC/零件:AS3693B 标准包装:1
AS3693B1-ZQFT
制造商:ams 功能描述:
AS3693B-DB
制造商:ams 功能描述:AS3693B Demo Board
AS3693B-ZQFT
功能描述:IC LED CTLR 16-CH W/PWM 64-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C
AS3693B-ZTQT
功能描述:IC LED CTLR 16-CH W/PWM 64-TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program 标准包装:2,500 系列:- 恒定电流:- 恒定电压:- 拓扑:升压（升压），切换式电容器（充电泵） 输出数:1 内部驱动器:是 类型 - 主要:背光 类型 - 次要:白色 LED 频率:625kHz ~ 875kHz 电源电压:2.7 V ~ 5.3 V 输出电压:5V 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-µMAX 包装:带卷 (TR) 工作温度:-40°C ~ 85°C