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參數(shù)資料
| 型號： | MAX1977 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers |
| 中文描述： | 高效率、四路輸出、主電源控制器，用于筆記本電腦 |
| 文件頁數(shù)： | 17/32頁 |
| 文件大?。?/td> | 497K |
| 代理商： | MAX1977 |
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M
High-Effic ienc y, Quad Output, Main Power-
S upply Controllers for Notebook Computers
______________________________________________________________________________________
17
Each PWM controller consists of a Dual Mode feedback
network and multiplexer, a multi-input PWM comparator,
high-side and low-side gate drivers, and logic. The
MAX1777/MAX1977/MAX1999 contain fault-protection cir-
cuits that monitor the main PWM outputs for undervoltage
and overvoltage conditions. A power-on sequence block
controls the power-up timing of the main PWMs and moni-
tors the outputs for undervoltage faults. The
MAX1777/MAX1977/MAX1999 include 5V and 3.3V linear
regulators. Bias generator blocks include the 5V (LDO5)
linear regulator, 2V precision reference, and automatic
bootstrap switchover circuit.
ON-TIME
COMPUTE
t
ON
t
OFF
TRIG
TRIG
ONE SHOT
ONE SHOT
Q
Q
Q
R
S
ERROR
AMPLIFIER
CURRENT
LIMIT
ZERO
CROSSING
Q
R
S
FAULT
LATCH
20ms
BLANKING
OUT
REF
ILIM_
CS_ (MAX1777/1977)
LX_ (MAX1999)
SKIP
OUT_
FB_
0.15V
PRO
0.9
V
REF
1.1
V
REF
0.7
V
REF
OV_FAULT
UV_FAULT
PGOOD
TODL_ DRIVER
TODH_ DRIVER
Σ
TON (MAX1999)
V+
Figure 4. PWM Controller (One Side Only)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1999 | High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers |
| MAX1977EEI | High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers |
| MAX1999EEI | High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers |
| MAX1778 | 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 85 |
| MAX1880 | Quad-Output TFT LCD DC-DC Converters with Buffer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1977EEI | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1977EEI+ | 功能描述:DC/DC 開關(guān)控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1977EEI+T | 功能描述:DC/DC 開關(guān)控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1977EEI-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1977EEI-TG068 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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