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参数资料
| 型号： | MAX15003EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX15003 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 3，非隔离 |
| 输出电压： | 1.2V，2.5V，3.3V |
| 电流 - 输出： | 10A，4A，3A |
| 输入电压： | 6 ~ 14 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX15003 |
MAX15003 Evaluation Kit
Table 2. Track/Sequence Operation (Jumper JU1)
SHUNT POSITION
1-2*
2-3
SEL PIN CONNECTION
Connected to REG
Connected to SGND
EV KIT VOUT_
OPERATION
Ratiometric tracking
mode*
Coincident tracking
mode
Sequence mode
EV KIT CIRCUIT MODIFICATIONS
Open resistors (R2, R26)
Short/0 Ω resistors (R3, R27)
Calculate values for resistors R2, R3, R26, and R27
*Default position.
Output Sequencing/Tracking
The MAX15003 IC can be programmed to power up
and power down the three outputs in sequence, ratio-
metric tracking, or coincident tracking mode by config-
uring the SEL pin. The MAX15003 EV kit features jumper
JU1 to configure the SEL pin. See Table 2 for jumper
JU1 configuration. The EV kit circuit is configured for
ratiometric tracking operation by default (resistors R3
and R27 shorted with PC trace), and can be easily mod-
ified for sequencing or coincident tracking. In ratiomet-
ric tracking mode, the soft-start controllers for VOUT1,
Phase Operation
The three DC-DC converters can switch in phase or at
120° out-of-phase. Operating the converters in the out-
of-phase mode increases the input capacitor ripple fre-
quency, reduces the RMS input ripple current, and thus
the size of the input bypass capacitor requirement. EV
kit jumper JU2 is used to configure the phase mode
operation. See Table 3 for jumper JU2 configuration.
Table 3. Phase Mode (Jumper JU2)
VOUT2, and VOUT3 are synchonized, and hence their
respective output voltages will track ratiometrically.
In concident tracking mode, the VOUT2 and VOUT3
output voltages ramp up, tracking the VOUT1 voltage
SHUNT
POSITION
1-2
2-3*
PHASE PIN
CONNECTION
Connected to REG
Connected to SGND
EV KIT OPERATION
In-phase mode
120° out-of-phase mode
depending on the resistor-divider ratio used for R2/R3
and R26/R27, respectively.
In sequencing mode, VOUT2 and VOUT3 outputs do
not turn on until the voltage at the IC EN/TRACK_ input
pin for each output reaches 1.22V. The ratio of resistor
pairs R2/R3 and R26/R27 set the voltage threshold that
VOUT1 must reach before VOUT2 and VOUT3 are
turned on.
For sequencing or concident tracking operation, the EV
kit PCB requires modification. Cut open the shorting PCB
trace at resistors R3 and R27 and install resistors R2, R3,
R26, and R27. Refer to the Coincident/Ratiometric
Tracking (SEL, EN/TRACK_) and the Output-Voltage
Sequencing (SEL, EN/TRACK_, PGOOD) sections in the
MAX15003 IC data sheet to calculate the proper values
for resistors R2, R3, R26, and R27.
*Default position.
Status Output Signals
The MAX15003 EV kit provides PGOOD1, PGOOD2,
and PGOOD3 logic output signals to indicate the regu-
lation state of VOUT1, VOUT2, and VOUT3. A logic-low
at the PGOOD_ pads indicates that output voltage has
dropped below 92.5% of its regulation voltage. Each
PGOOD_ signal is pulled high to the respective VOUT_
voltage when in regulation. The EV kit also provides a
RESET logic output signal that indicates when all three
PGOOD outputs are logic-high. The RESET output is
pulled high (5V) after all three PGOOD signals are
pulled high and a timeout period of 22ms has elapsed.
Use the following equation to calculate the new capaci-
tor value for C22 to modify the timeout period:
C 22 =
2 μ A × T TIMEOUT
2 V
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| MAX15003EVKIT+ | 功能描述:电源管理IC开发工具 MAX15003 Eval Kit 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 |
| MAX15004AAUE/V+ | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX15004AAUE/V+T | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX15004AAUE+ | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX15004AAUE+T | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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