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参数资料
| 型号： | MAX5061EUE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 18/31页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.5MHz |
| 占空比： | 90% |
| 电源电压： | 4.75 V ~ 28 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 带卷 (TR) |
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0.6V to 5.5V Output, Parallelable,
Average-Current-Mode DC-DC Controllers
Control Loop
The MAX5060/MAX5061 use an average-current-mode
control scheme to regulate the output voltage (Figure 5).
The main control loop consists of an inner current loop
and an outer voltage loop. The inner loop controls the
output current (I PHASE ), while the outer loop controls the
output voltage. The inner current loop absorbs the
inductor pole reducing the order of the outer voltage
loop to that of a single-pole system.
The current loop consists of a current-sense resistor
(R SENSE ), a current-sense amplifier (CA), a current-
error amplifier (CEA), an oscillator providing the carrier
ramp, and a PWM comparator (CPWM) (Figure 6). The
precision CA amplifies the sense voltage across RS by
a factor of 34.5. The inverting input to the CEA senses
the CA output. The CEA output is the difference
between the voltage-error-amplifier output (EAOUT)
and the amplified voltage from the CA. The RC com-
pensation networks connected to CLP provide external
clock cycle enables the high-side drivers and initiates a
PWM ON cycle. Comparator CPWM compares the out-
put voltage from the CEA with a 0 to 2V ramp from the
oscillator. The PWM ON cycle terminates when the
ramp voltage exceeds the error voltage.
The MAX5060 outer voltage control loop consists of the
differential amplifier (DIFF AMP), reference voltage, and
VEA. The unity-gain differential amplifier provides true-
differential remote sensing of the output voltage. The dif-
ferential amplifier output connects to the inverting input
(EAN) of the VEA. For MAX5061, the DIFF AMP is
bypassed and the inverting input is available to the pin
for direct feedback. The noninverting input of the VEA is
internally connected to an internal precision reference
voltage. The MAX5060/MAX5061 reference voltage is set
to 0.6V. The VEA controls the inner current loop ( Figure
4). Use a resistive feedback network to set the VEA gain
as required by the adaptive voltage-positioning circuit
(see the Adaptive Voltage Positioning section).
frequency compensation for the CEA. The start of every
V DD
PEAK-CURRENT
COMPARATOR
60mV
CLP
CSP
CSN
A V = 34.5
CA
g m = 550 μ S
MAX5060
GM IN
CEA
PWM
COMPARATOR
S
Q
BST
DH
RAMP
2 x f S (V/s)
CPWM
LX
CLK
SHDN
R
Q
DL
PGND
Figure 6. Phase Circuit
18
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相关代理商/技术参数 |
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| MAX5062 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:125V/2A, High-Speed, Half-Bridge MOSFET Drivers |
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| MAX5062AASA | 功能描述:功率驱动器IC 125V 2A Half-Bridge MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX5062AASA+ | 功能描述:功率驱动器IC 125V 2A Half-Bridge MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX5062AASA+T | 功能描述:功率驱动器IC 125V 2A Half-Bridge MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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