- 您现在的位置：买卖IC网 > PDF目录1838 > MAX16920BATJ/V+ (Maxim Integrated Products)IC PMIC MULT-OUTPUT AUTO 32TQFN PDF资料下载
参数资料
| 型号： | MAX16920BATJ/V+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/20页 |
| 文件大小： | 0K |
| 描述： | IC PMIC MULT-OUTPUT AUTO 32TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 43 |
| 应用： | 车载系统 |
| 电流 - 电源： | 2mA |
| 电源电压： | 5.5 V ~ 18 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-TQFN-EP（7x7） |
| 包装： | 托盘 |
Automotive Power-Management IC with
Three Step-Down Converters and Linear Regulator
DC-DC3 OUTPUT
7.4V
OUT1/OUT3
R1 = 100k I
R TOP
Ri1 = 212k I
FBi
V FB_ = 1.21V
Ri2 = 121k I
FB1/FB3
USE INTERNAL
~750mV
Figure 3. Typical Application Circuit for Setting OUT1 or OUT3 Above 3.3V
R2 = 50k I
R BOT
Setting the Undervoltage Output
( UVO ) Level
The UVO level is set by using two resistors connected
between the input (before the reverse-polarity protection
diode if used) and the UVI and between UVI and UVS.
The UVS switch has a 1540? typical resistance that
must be taken into account when calculating the external
resistor values to maintain accuracy. Use the following
equation to calculate the value of the upper resistor, R1:
R1 = (V BT – 1.205)/(1.205/(R2 + R UVS ))
where V BT is the desired undervoltage level at the
battery, and R2 is the value of the lower resistor (a good
starting value is 100k?). R UVS is 1540?. See the typical
operating circuits in Figures 4 and 5.
PCB Layout Guidelines
Grounding
Establish a “quiet” ground for all analog ground (GND)
connections. Sources of switching current and other
noisy signals should be connected to their respective
power grounds (PGNDA and PGNDB). GND, PGNDA,
and PGNDB should be connected together at the GND
pin of the MAX16920. If needed, use multiple vias to
connect ground planes between different board layers
to keep the ground impedance low.
16
The following should be connected to analog GND:
1) The GND pin of the MAX16920.
2) The ground connection of the V L capacitor.
3) The grounds for any feedback resistor-dividers used.
4) The ground side of the OUTA output capacitor.
All other ground connections should be to their respec-
tive PGNDA and PGNDB grounds.
General Guidelines
1) Minimize the area of high-current loops by placing
each DC-DC converter’s inductor and output capaci-
tors near its input capacitors and its LX_ and PGND_
pins. OUT1 and OUT2 converters share PGNDB for
ground return, while OUT3 has PGNDA for ground
return.
2) Keep the power traces and load connections as
short and wide as possible, especially at the ground
terminals. This practice is essential for high efficiency
and jitter-free operation.
3) Use thick copper PCBs (2oz. vs. 1oz.) if possible to
enhance efficiency.
4) Keep the LX_ connections short and wide and place
the inductors as close as possible to the associated
LX pin.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX16922ATPL/V+T | IC DCDC CONV STPDN DL LDO 20TQFN |
| MAX1692EUB | IC REG BUCK SYNC ADJ 0.6A 10UMAX |
| MAX16948AGTE/V+ | IC LDO/SWITCH ADJ DUAL 16TQFN |
| MAX16955AUE/V+ | IC REG CTRLR BUCK PWM CM 16TSSOP |
| MAX16974AUE/V+ | IC REG BUCK SYNC 5V/ADJ 16TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16920BEVKIT+ | 功能描述:电源管理IC开发工具 Multiple-Output Power Supply RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX16922ATPA/V+ | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX16922ATPA/V+T | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX16922ATPB/V+ | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX16922ATPB/V+T | 功能描述:直流/直流开关转换器 2.2MHz Dual Step-Dwn DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
发布紧急采购，3分钟左右您将得到回复。