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参数资料
| 型号： | MAX5066EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/22页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX5066 |
| 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： | 2，非隔离 |
| 输出电压： | 0.8V，1.3V |
| 电流 - 输出： | 10A，10A |
| 输入电压： | 5 ~ 16 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 500kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX5066 |
Configurable, Single-/Dual-Output, Synchronous
Buck Controller for High-Current Applications
Pin Description (continued)
PIN
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
EP
NAME
CSN1
EN1
BST1
DH1
LX1
DL1
V DD
REG
IN
PGND
DL2
LX2
DH2
BST2
EN2
EP
FUNCTION
Current-Sense Differential Amplifier Negative Input for Output1. Connect CSN1 to the negative
terminal of the sense resistor. The differential voltage between CSP1 and CSN1 is internally amplified
by the current-sense amplifier (A V(CS) = 36V/V).
Output 1 Enable. A logic-low shuts down channel 1’s MOSFET drivers. EN1 can be used for output
sequencing.
Boost Flying Capacitor Connection. Reservoir capacitor connection for the high-side MOSFET driver
supply. Connect a 0.47μF ceramic capacitor between BST1 and LX1.
High-Side Gate Driver Output1. DH1 drives the gate of the high-side MOSFET.
External inductor connection and source connection for the high-side MOSFET for Output1. LX1 also
serves as the return terminal for the high-side MOSFET driver.
Low-Side Gate Driver Output1. Gate driver output for the synchronous MOSFET.
Supply Voltage for Low-Side Drivers. REG powers V DD . Connect a parallel combination of 0.1μF and
1μF ceramic capacitors from V DD to PGND and a 1 ? resistor from V DD to REG to filter out the high-
peak currents of the driver from the internal circuitry.
Internal 5V Regulator Output. REG is derived internally from IN and is used to power the internal bias
circuitry. Bypass REG to AGND with a 4.7μF ceramic capacitor.
Supply Voltage Connection. Connect IN to a 5V to 28V input supply.
Power Ground. Source connection for the low-side MOSFET. Connect V DD ’s bypass capacitor returns
to PGND.
Low-Side Gate Driver Output2. Gate driver for the synchronous MOSFET.
External inductor connection and source connection for the high-side MOSFET for Output2. Also
serves as the return terminal for the high-side MOSFET driver.
High-Side Gate Driver Output2. DH2 drives the gate of the high-side MOSFET.
Boost Flying Capacitor Connection. Reservoir capacitor connection for the high-side MOSFET driver
supply. Connect a 0.47μF ceramic capacitor between BST2 and LX2.
Output 2 Enable. A logic-low shuts down channel 2’s MOSFET drivers. EN2 can be used for output
sequencing.
Exposed Pad. Connect exposed pad to ground plane.
Detailed Description
The MAX5066 switching power-supply controller can
be configured in two ways. With the MODE input high, it
operates as a single-output, dual-phase, step-down
switching regulator where each output is 180° out of
phase. With the MODE pin connected low, the
MAX5066 operates as a dual-output, step-down switch-
ing regulator. The average current-mode control topolo-
gy of the MAX5066 offers high-noise immunity while
having benefits similar to those of peak current-mode
control. Average current-mode control has the intrinsic
ability to accurately limit the average current sourced
by the converter during a fault condition. When a fault
condition occurs, the error amplifier output voltage
(EAOUT1 or EAOUT2) that connects to the positive
input of the transconductance amplifier (CA1 or CA2) is
clamped thus limiting the output current.
The MAX5066 contains all blocks necessary for two
independently regulated average current-mode PWM
regulators. It has two voltage error amplifiers (VEA1
and VEA2), two current-error amplifiers (CEA1 and
CEA2), two current-sensing amplifiers (CA1 and CA2),
two PWM comparators (CPWM1 and CPWM2), and dri-
vers for both low- and high-side power MOSFETs (see
Figure 1). Each PWM section is also equipped with a
pulse-by-pulse, current-limit protection and a fault inte-
gration block for hiccup protection.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5067 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers |
| MAX5067ETH | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average 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 |
| MAX5067ETH+ | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average 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 |
| MAX5067ETH+T | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average 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 |
| MAX5067ETH-T | 功能描述:电流型 PWM 控制器 Dual-Phase .6-3.3V Parallelable Average 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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