参数资料
型号: MAX15005AEVKIT+
厂商: Maxim Integrated Products
文件页数: 13/27页
文件大小: 0K
描述: KIT EVAL FOR MAX15005A
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,步升/步降
输出及类型: 3,隔离
输出电压: 3V,110V,60V
电流 - 输出: 650mA,55mA,12mA
输入电压: 6.5 ~ 16 V
稳压器拓扑结构: 回扫
频率 - 开关: 100kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX15005A
MAX15004A/B/MAX15005A/B
4.5V to 40V Input Automotive
Flyback/Boost/SEPIC Power-Supply Controllers
(t DISCHARGE ). See Figures 3a and 3b for a coarse selec-
tion of capacitor values for a given switching frequency
and maximum duty cycle and then use the following
equations to calculate the resistor value to fine-tune the
The MAX15004A/B is a 50% maximum duty-cycle part,
while the MAX15005A/B is 100% maximum duty-cycle
part.
2 OSC
switching frequency and verify the worst-case maximum
duty cycle.
f OUT =
1
f
t CHARGE =
D MAX
f OSC
for the MAX15004A/B and
RT = CHARGE
t DISCHARGE =
t
0 . 7 × CT
2 . 25 ( V ) × RT × CT
( 1 . 33 × 10 ? 3 ( A ) × RT ) ? 3 . 375 ( V )
f OUT = f OSC
for the MAX15005A/B.
................... Us e This Equation If f OSC ≤ 500 kHz
? t + t
f OS C = ?
?
....... Use This Equation If f OSC > 500 k Hz
? 1
? CHARGE DISCHARGE
1
? ? t CHARGE + t DISCHA R GE + 160 ns
where f OSC is the oscillator frequency, RT is a resistor
connected from RTCT to REG5, and CT is a capacitor
connected from RTCT to SGND. Verify that the oscilla-
tor frequency value meets the target. Above calcula-
tions could be repeated to fine-tune the switching
frequency.
The MAX15004A/B/MAX15005A/B can be synchronized
using an external clock at the SYNC input. For proper
frequency synchronization, SYNC’s input frequency must
be at least 102% of the programmed internal oscillator
frequency. Connect SYNC to SGND when not using an
external clock. A rising clock edge on SYNC is interpret-
ed as a synchronization input. If the SYNC signal is lost,
the internal oscillator takes control of the switching rate,
returning the switching frequency to that set by RC net-
work connected to RTCT. This maintains output regula-
tion even with intermittent SYNC signals.
RTCT
CLKINT
SYNC
OUT
MAX15004A/B (D MAX = 50%)
WITH SYNC
INPUT
WITHOUT
SYNC INPUT
D = 50%
D = 50%
MAX15005A/B (D MAX = 81%)
RTCT
CLKINT
SYNC
OUT
D = 81.25%
Figure 2. Timing Diagram for Internal Oscillator vs. External SYNC and DMAX Behavior
Maxim Integrated
WITH SYNC
INPUT
D = 80%
WITHOUT
SYNC INPUT
13
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MAX15005AEVKIT+ 功能描述:电源管理IC开发工具 MAX15005A 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
MAX15005BAUE/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
MAX15005BAUE/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
MAX15005BAUE+ 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
MAX15005BAUE+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