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参数资料
| 型号： | MAX17082GTL+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) |
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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
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相关代理商/技术参数 |
参数描述 |
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| MAX17083ETG+ | 功能描述:直流/直流开关调节器 Low-Voltage Internal Switch Step-Down RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX17083ETG+T | 功能描述:直流/直流开关调节器 Low-Voltage Internal Switch Step-Down RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX17083EVKIT+ | 功能描述:电源管理IC开发工具 Low-Voltage Internal Switch Step-Down RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX17085BETL+ | 功能描述:电池管理 Dual Main Step-Down Controller RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17085BETL+T | 功能描述:电池管理 Dual Main Step-Down Controller RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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