- 您现在的位置：买卖IC网 > PDF目录1194 > ADP1043AFB100EVALZ (Analog Devices Inc)BOARD EVALUATION ADP1043A 100W PDF资料下载
参数资料
| 型号： | ADP1043AFB100EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 25/72页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION ADP1043A 100W |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 已用 IC / 零件： | ADP1043A |
| 主要属性： | * |
| 次要属性： | * |
| 已供物品： | 板 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页
ADP1043A
CONSTANT CURRENT MODE
The ADP1043A can be configured to operate in constant
current mode. The threshold to enter constant current mode
operation is 10% current below the CS2 accurate OCP setting.
Below this current, the part operates normally, using the output
voltage as the feedback signal for closed-loop operation.
When the ADP1043A reaches the constant current mode
threshold, a flag is set. The CS2 current reading is used instead
of the output voltage as the feedback signal for closed-loop
operation. The output voltage is ramped down linearly to 60%
of its nominal value as the load resistance decreases to ensure
that the current remains constant.
When the control loop reaches 60% of V OUT , the part again uses
the output voltage to close the loop, but at the reduced level
(60% of nominal). If the load resistance continues to decrease,
the current may rise again in this region, up to the CS2 OCP
level, but the voltage is kept limited to 60% of nominal (see
Figure 30). The UVP or CS2 OCP flags can be used to program
a shutdown action.
V OUT
OVERVOLTAGE PROTECTION (OVP)
The ADP1043A has two OVP circuits. If the output voltage at
the VS1, VS2, or VS3 pin exceeds the programmable threshold
for that pin, that OVP flag is set; the response to that flag can be
programmed. VS1 has one OVP circuit. VS2 and VS3 share the
other OVP circuit. The OVP circuits can be programmed for
different OVP thresholds. See Register 0x32 and Register 0x33
for more information. The formula to set the OVP threshold
voltage is given by
VSx OVP = [(89 + VS1_OVP_Setting )/128] × 1.55 V
For example, when the VS1 OVP setting = 10, then
VS1 OVP = [(89 + 10)/128] × 1.55 V = 1.2 V
UNDERVOLTAGE PROTECTION (UVP)
If the voltage being sensed at the VS1 pin goes below the pro-
grammable UVP threshold, the UVP flag is set. Exceptions
to this rule (called undervoltage blanking) include during
startup and when ACSNS is not within limits. The response
to the UVP condition is programmable (see Register 0x34 in
V OUT NOMINAL
V OUT × 60%
I OUT
OCP
OCP × 90%
Figure 30. Constant Current Mode (V OUT vs. I OUT )
Rev. 0 | Page 25 of 72
相关PDF资料 |
PDF描述 |
|---|---|
| ADP1046-100-EVALZ | BOARD EVAL FOR ADP1046-100 |
| ADP1048-600-EVALZ | BOARD EVAL ADP1048-600 |
| ADP190CB-EVALZ | BOARD EVAL ADP190 |
| ADP191CB-EVALZ | EVAL BOARD FOR ADP191 |
| ADP194CB-EVALZ | BOARD EVAL FOR ADP194ACBZ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1043AIF300EVALZ | 制造商:Analog Devices 功能描述:ADP1043A 300W EVALUATION BOARD - Boxed Product (Development Kits) |
| ADP1043A-USB-Z | 功能描述:EVAL BOARD DIG POWER SUPPLY RoHS:是 类别:编程器，开发系统 >> 配件 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 标准包装:1 系列:- 附件类型:USB 至 1-Wire? RJ11 适配器 适用于相关产品:1-Wire? 设备 产品目录页面:1429 (CN2011-ZH PDF) |
| ADP1043-EVALZ | 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Bulk |
| ADP1043FB100-EVALZ | 制造商:Analog Devices 功能描述:ADP1043 100W EVALUATION BOARD |
| ADP1045ACPZ-RL | 制造商:Analog Devices 功能描述: |
发布紧急采购，3分钟左右您将得到回复。