- 您现在的位置：买卖IC网 > PDF目录5135 > MAX17482GTL+T (Maxim Integrated Products)IC CTLR PWM DUAL IMVP-6.5 40TQFN PDF资料下载
参数资料
| 型号： | MAX17482GTL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 36/48页 |
| 文件大小： | 0K |
| 描述： | IC CTLR PWM DUAL IMVP-6.5 40TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | Quick-PWM™ |
| 应用： | 控制器，Intel IMVP-6，IMVP-6.5? |
| 输入电压： | 4.5 V ~ 5.5 V |
| 输出数： | 1 |
| 输出电压： | 0.013 V ~ 1.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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页第34页第35页当前第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页第46页第47页第48页
Dual-Phase, Quick-PWM Controllers for
IMVP-6+/IMVP-6.5 CPU Core Power Supplies
CPU FREQ
CPU LOAD
VID (D0–D6)
CPU CORE
VOLTAGE
PSI
INTERNAL
PWM CONTROL
PWRGD
CLKEN
2-PHASE PWM
BLANK HIGH IMPEDANCE
BLANK LOW
1-PHASE PWM
2-PHASE PWM
BLANK HIGH IMPEDANCE
BLANK LOW
PHASEGD
t BLANK
20 μ s typ
BLANK HIGH IMPEDANCE
t BLANK
20 μ s typ
32 SWITCHING CYCLES ON DH2
Figure 8. PSI Transition
P S I Transitions
When PSI is pulled low, the MAX17021/MAX17082/
MAX17482 immediately disable phase 2 (DH2 and DL2
forced low), blank PHASEGD high impedance, and
enter single-phase PWM operation (see Figure 8).
When PSI is pulled high, the MAX17021/MAX17082/
MAX17482 enable phase 2. PHASEGD is blanked high
impedance for 32 switching cycles on DH2, allowing
sufficient time/cycles for phases 1 and 2 to achieve cur-
rent 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-shutdown, and normal operation—when the
CPU is actively running (DPRSLPVR = low) —the
MAX17021/MAX17082/MAX17482 operate with the low-
noise, forced-PWM control scheme. Forced-PWM oper-
ation disables the zero-crossing comparators of all
active phases, forcing the low-side gate-drive wave-
forms to constantly be the complement of the high-side
gate-drive waveforms. This keeps the switching fre-
quency constant and allows the inductor current to
reverse under light loads, providing fast, accurate neg-
ative output-voltage transitions by quickly discharging
the output 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 can switch the con-
troller 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).
36
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| 200MXG2200MEFCSN35X45 | CAP ALUM 2200UF 200V 20% SNAP-IN |
| MAX17082GTL+T | IC CTLR PWM DUAL IMVP-6.5 40TQFN |
| HMC13DRAS | CONN EDGECARD 26POS R/A .100 SLD |
| 250VXH1800MEFCSN35X50 | CAP ALUM 1800UF 250V 20% SNAP-IN |
| 250MXG1800MEFCSN35X50 | CAP ALUM 1800UF 250V 20% SNAP-IN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1748EUE | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1748EUE+ | 功能描述:直流/直流开关转换器 Triple-Output TFT LCD DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1748EUE+T | 功能描述:直流/直流开关转换器 Triple-Output TFT LCD DC/DC Converters RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1748EUE-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1748EUE-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
发布紧急采购，3分钟左右您将得到回复。