- 您现在的位置：买卖IC网 > Sheet目录694 > MAX17410GTM+ (Maxim Integrated)IC CTLR QPWM 2PH FOR IMV 48TQFN
Dual-Phase, Quick-PWM Controller
for IMVP6+ CPU Core Power Supplies
Integrator Amplifier
An integrator amplifier forces the DC average of the FB
voltage to equal the target voltage. This transconduc-
tance amplifier integrates the feedback voltage and
provides a fine adjustment to the regulation voltage
(Figure 2), allowing accurate DC output-voltage regula-
tion regardless of the output ripple voltage. The integrator
amplifier has the ability to shift the output voltage by
± 100mV (typ). The differential input voltage range is at
least ±60mV total, including DC offset and AC ripple.
The MAX17410 disables the integrator by connecting
the amplifier inputs together at the beginning of all VID
transitions done in pulse-skipping mode (DPRSLPVR =
high). The integrator remains disabled until 20μs after
the transition is completed (the internal target settles)
and the output is in regulation (edge detected on the
error comparator).
Transient Overlap Operation
When a transient occurs, the response time of the con-
troller depends on how quickly it can slew the inductor
current. Multiphase controllers that remain 180 ° out-of-
phase when a transient occurs actually respond slower
than an equivalent single-phase controller. To provide
fast transient response, the MAX17410 supports a
phase overlap mode that allows the dual regulators to
operate in-phase when heavy load transients are
detected, effectively reducing the response time. After
either high-side MOSFET turns off, if the output voltage
does not exceed the regulation voltage when the mini-
mum off-time expires, the controller simultaneously
turns on both high-side MOSFETs during the next on-
time cycle. This maximizes the total inductor current
slew rate. The phases remain overlapped until the out-
put voltage exceeds the regulation voltage after the
minimum off-time expires.
After the phase overlap mode ends, the controller automat-
ically begins with the opposite phase. For example, if the
secondary phase provided the last on-time pulse before
overlap operation began, the controller starts switching
with the main phase when overlap operation ends.
Table 3. Operating Mode Truth Table
Nominal Output Voltage Selection
The nominal no-load output voltage (V TARGET ) is
defined by the selected voltage reference (VID DAC)
plus the remote ground-sense adjustment (V GNDS ) as
defined in the following equation:
V TARGET = V FB = V DAC + V GNDS
where V DAC is the selected VID voltage. On startup, the
MAX17410 slews the target voltage from ground to the
preset boot voltage.
DAC Inputs (D0–D6)
The digital-to-analog converter (DAC) programs the out-
put voltage using the D0–D6 inputs. D0–D6 are low-volt-
age (1.0V) logic inputs, designed to interface directly
with the CPU. Do not leave D0 –D6 unconnected.
Changing D0–D6 initiates a transition to a new output
voltage level. Change D0–D6 together, avoiding greater
than 20ns skew between bits. Otherwise, incorrect DAC
readings may cause a partial transition to the wrong
voltage level followed by the intended transition to the
correct voltage level, lengthening the overall transition
time. The available DAC codes and resulting output
voltages are compatible with the IMVP6/IMVP6+ (Table
4) specifications.
Suspend Mode
When the processor enters low-power deeper sleep
mode, the IMVP6 CPU sets the VID DAC code to a
lower output voltage and drives DPRSLPVR high. The
MAX17410 responds by slewing the internal target volt-
age to the new DAC code, switching to single-phase
operation, and letting the output voltage gradually drift
down to the deeper sleep voltage. During the transition,
the MAX17410 blanks both the upper and lower
PWRGD and CLKEN thresholds until 20 μs after the
internal target reaches the deeper sleep voltage. Once
the 20μs timer expires, the MAX17410 re-enables the
lower PWRGD and CLKEN threshold, but keeps the
upper threshold blanked. PHASEGD remains blanked
high impedance while DPRSLPVR is high.
SHDN
INPUTS
DPRSTP DPRSLPVR
PSI
PHASE
OPERATION*
OPERATING MODE
GND
Rising
X
X
X
X
X
X
DISABLED
Multiphase
Skipping
1/8 R TIME Slew
Rate
Low-Power Shutdown Mode. DL1 and DL2 forced low, and the
controller is disabled. The supply current drops to 1μA (max).
Startup/Boot. When SHDN is pulled high, the MAX17410
begins the startup sequence and ramps the output voltage
up to the boot voltage. See Figure 9.
______________________________________________________________________________________
27
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MC2711H
SWITCH BUSHING PLUNGER W/SEAL
MC2711
SWITCH BUSHING MOUNT PLUNGER
MC7711
SWITCH BUSHING MOUNT PLUNGER
MCA7711
SWITCH BUSHING MOUNT PLUNGER
MCD2711
SWITCH BUSHING MOUNT PLUNGER
MCD7711
SWITCH BUSHING MOUNT PLUNGER
MCZ2010AH900
CHOKE COMMON MODE 90 OHM SMD
MCZ2010CH240L4T
CHOKE COMMON MODE 24 OHM SMD
相关代理商/技术参数
MAX17410GTM+T
功能描述:电流型 PWM 控制器 NDA IC 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
MAX17411GTM+
功能描述:电流型 PWM 控制器 IMVP7 CPU & Graphics Controller 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
MAX17411GTM+T
功能描述:电流型 PWM 控制器 IMVP7 CPU & Graphics Controller 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
MAX17411RGTM+
功能描述:电流型 PWM 控制器 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
MAX17411RGTM+T
功能描述:电流型 PWM 控制器 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
MAX17411RGTM+TW
功能描述:电流型 PWM 控制器 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
MAX17411RGTM+W
功能描述:电流型 PWM 控制器 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
MAX17412ETI+
制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: