参数资料
型号: MAX15034BAUI+
厂商: Maxim Integrated Products
文件页数: 21/26页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 28TSSOP-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
PWM 型: 电流模式
输出数: 1 或 2
频率 - 最大: 1MHz
电源电压: 4.75 V ~ 5.5 V,5 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
包装: 管件
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
LX_
L OUT
R SENSE
V OUT
MAX15034
CSP_
CSN_
Figure 8. Noninductive Resistive Sense
INDUCTOR
MAX15034
LX_
L
R1
DCR
C1
V OUT
CSP_
R2*
C3*
C2*
CSN_
*OPTIONAL.
Figure 9. Lossless Inductor Sense
Set the RC time constant to be 1.1 to 1.2 times the
inductor time constant (L/DCR). Select C1 to be in the
0.1μF to 0.47μF range, and then calculate R1 from:
parallel with R2 to aid in short-circuit recovery. Set C3
equal to C1. Finally, it may be helpful to add a 100pF
(C2) capacitor immediately across the CSP_ and CSN_
inputs to minimize high-frequency noise pick-up at the
R 1 [ k ? ] =
1 . 2 × L [ μ H ]
DCR [ m ? ] × C 1 [ μ F ]
IC in some applications.
For current-sense resistors that have a noticeable
inductance component, use lossless inductor sense
In some applications, it may be useful to add a resistor
(R2 in Figure 9) in series with the CSN_ connection to
minimize input offset error. Set R2 equal to R1. It may
also prove useful to add capacitor C3 (Figure 9) in
Table 3. Current-Sense Configurations
implementation (and design procedure). See Figure 10.
Table 3 highlights the tradeoffs of each current-sense
method.
METHOD
Output Current-Sense Resistor
Equivalent Inductor DC Resistance
CURRENT-SENSE
ACCURACY
High
Low
INDUCTOR-SATURATION
PROTECTION
Allowed (highest accuracy)
Allowed
CURRENT-SENSE POWER
LOSS (EFFICIENCY)
R SENSE x I OUT2
No additional loss
______________________________________________________________________________________
21
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MAX15034BAUI+ 功能描述:DC/DC 开关控制器 Configurable Synchronous Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX15034BAUI+T 功能描述:DC/DC 开关控制器 Configurable Synchronous Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX15034BEVKIT+ 功能描述:电源管理IC开发工具 MAX15034B 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
MAX15035ETL+ 功能描述:电压模式 PWM 控制器 15A Step-Down Reg w/Internal Switch RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX15035ETL+T 功能描述:电压模式 PWM 控制器 15A Step-Down Reg w/Internal Switch RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel