參數(shù)資料
型號： MAX1816
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字信號處理
英文描述： Replaced by TMS320VC5506 : Digital Signal Processors 144-LQFP
中文描述： 雙路、降壓型控制器及線性穩(wěn)壓控制器，用于筆記本電腦
文件頁數(shù)： 34/49頁
文件大?。?/td> 983K
代理商： MAX1816
M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
34
______________________________________________________________________________________
equal to 1/8th the voltage appearing at the selected
OFS input (
V
OUT
= -0.125
×
V
OFS_
). For inputs from
1.2V to 2V, a positive offset is added to the output that
is equal to 1/8th the difference between the reference
voltage and the voltage appearing at the selected OFS
input (
V
OUT
= 0.125
×
(V
REF
- V
OFS_
)). With this
scheme, both positive and negative offsets can be
achieved with a single voltage-divider. The piecewise
linear transfer function is shown in Figure 9.
The regions of the transfer function below zero, above
2.0V, and between 0.8V and 1.2V are undefined. OFS
inputs are disallowed in these regions, and the respec-
tive effects on the output are not specified.
The offset control inputs are selected using a combina-
tion of the three logic inputs (SUS, PERF, and
DPSLP
),
which also define the operating mode for the
MAX1816/MAX1994. Table 7 details which OFS input is
selected based on these control inputs.
BUCK1 Output-Voltage Transition Timing
The MAX1816/MAX1994 are designed to perform out-
put voltage transitions in a controlled manner, automati-
cally minimizing input surge currents. This feature
allows the regulator to perform nearly ideal transitions,
guaranteeing just-in-time arrival at the new output volt-
age level with the lowest possible peak currents for a
given output capacitance.
Modern mobile CPUs operate at multiple clock frequen-
cies that require multiple VID settings. It is common
when transitioning from one clock frequency to another
for the CPU to go into a low-power state before chang-
ing the output voltage and clock frequency. The change
must be accomplished within a fixed time interval
—
often
less than 100μs.
Table 6. Output Voltage vs. Suspend
Mode DAC Codes
S1
S0
V
OUT
(V)
MAX1816/MAX1994
GND
GND
GND
GND
REF
REF
REF
REF
OPEN
OPEN
OPEN
OPEN
V
CC
V
CC
V
CC
V
CC
GND
REF
OPEN
V
CC
GND
REF
OPEN
V
CC
GND
REF
OPEN
V
CC
GND
REF
OPEN
V
CC
1.075
1.050
1.025
1.000
0.975
0.950
0.925
0.900
0.875
0.850
0.825
0.800
0.775
0.750
0.725
0.700
Table 5. Output Voltage vs. DAC Codes
D4
D3
D2
D1
D0
V
OUT
(V)
MAX1816
V
OUT
(V)
MAX1994
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1.750
1.700
1.650
1.600
1.550
1.500
1.450
1.400
1.350
1.300
1.250
1.200
1.150
1.100
1.050
1.000
0.975
0.950
0.925
0.900
0.875
0.850
0.825
0.800
0.775
0.750
0.725
0.700
0.675
0.650
0.625
0.600
2.000
1.950
1.900
1.850
1.800
1.750
1.700
1.650
1.600
1.550
1.500
1.450
1.400
1.350
1.300
No CPU
1.275
1.250
1.225
1.200
1.175
1.150
1.125
1.100
1.075
1.050
1.025
1.000
0.975
0.950
0.925
No CPU
相關(guān)PDF資料
PDF描述
MAX1816ETM Replaced by TMS320VC5506 : Digital Signal Processors 144-LQFP
MAX199AEWI Fixed-Point Digital Signal Processor 532-FCBGA
MAX199AMYI Circular Connector; No. of Contacts:18; Series:MS27505; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle RoHS Compliant: No
MAX199ACAI Multi-Range (【4V, 【2V, +4V, +2V), +5V Supply, 12-Bit DAS with 8+4 Bus Interface
MAX199AENI Multi-Range (【4V, 【2V, +4V, +2V), +5V Supply, 12-Bit DAS with 8+4 Bus Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1816ETM 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
MAX1816ETM+ 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
MAX1816ETM+T 功能描述:DC/DC 開關(guān)控制器 NULL 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
MAX1816ETM-T 功能描述:DC/DC 開關(guān)控制器 NULL 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
MAX1816XR31+ 制造商:Maxim Integrated Products 功能描述:
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*