- 您现在的位置：买卖IC网 > PDF目录21684 > MAX17410GTM+T (Maxim Integrated)IC CTLR QPWM 2PH FOR IMV 48TQFN PDF资料下载
参数资料
| 型号： | MAX17410GTM+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 34/45页 |
| 文件大小： | 0K |
| 描述： | IC CTLR QPWM 2PH FOR IMV 48TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页当前第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页
Dual-Phase, Quick-PWM Controller
for IMVP6+ CPU Core Power Supplies
PSI Transitions
When PSI is pulled low, the MAX17410 immediately dis-
ables phase 2 (DH2 and DL2 forced low), blanks
PHASEGD high impedance, and enters single-phase
PWM operation (see Figure 7). When PSI is pulled high,
the MAX17410 enables phase 2. PHASEGD is blanked
high impedance for 32 switching cycles on DH2, allow-
ing sufficient time/cycles for phase 1 and 2 to achieve
current balance. In a typical IMVP-6 application, the VID
is reduced by 1 LSB (12.5mV) when PSI is pulled low,
and increased by 1 LSB when PSI is pulled high.
Forced-PWM Operation (Normal Mode)
During soft-start, soft-shutdown, and normal operation—
when the CPU is actively running (DPRSLPVR = low,
Table 5)—the MAX17410 operates with the low-noise,
forced-PWM control scheme. Forced-PWM operation
disables the zero-crossing comparators of all active
phases, forcing the low-side gate-drive waveforms to
CPU FREQ
CPU LOAD
VID (D0–D6)
CPU CORE VOLTAGE
PSI
constantly be the complement of the high-side gate-
drive waveforms. This keeps the switching frequency
constant and allows the inductor current to reverse
under light loads, providing fast, accurate negative out-
put voltage transitions by quickly discharging the out-
put capacitors.
Forced-PWM operation comes at a cost: the no-load
+5V bias supply current remains between 10mA to
50mA per phase, depending on the external MOSFETs
and switching frequency. To maintain high efficiency
under light load conditions, the processor may switch
the controller to a low-power pulse-skipping control
scheme after entering suspend mode.
PSI determines how many phases are active when
operating in forced-PWM mode (DPRSLPVR = low).
When PSI is pulled low, the main phase remains active
but the secondary phase is disabled (DH2 and DL2
forced low).
INTERNAL
PWM CONTROL
PWRGD
CLKEN
2-PHASE PWM
BLANK HIGH-Z
BLANK LOW
1-PHASE PWM
2-PHASE PWM
BLANK HIGH-Z
BLANK LOW
PHASEGD
t BLANK
20 μ s TYP
BLANK HIGH-Z
t BLANK
20 μ s TYP
32 DH2 SWITCHING CYCLES
Figure 7. PSI Transition
34
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| BAV99W,115 | DIODE ARRAY 100V 130MA SOT323 |
| ATS049B | CRYSTAL 4.9152 MHZ 18PF |
| ATS221B | CRYSTAL 22.1184 MHZ 18 PF FUND |
| ATS20A | CRYSTAL 20.0 MHZ 20 PF FUND |
| ATS073B | CRYSTAL 7.3728 MHZ 18 PF FUND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
发布紧急采购，3分钟左右您将得到回复。