參數(shù)資料
型號： MAX1994ETM
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Dual Step-Down Controllers Plus Linear- Regulator Controller for Notebook Computers
中文描述： DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC48
封裝： 7 X 7 MM, 0.80 MM HEIGHT, THIN, QFN-48
文件頁數(shù)： 10/49頁
文件大小： 983K
代理商： MAX1994ETM
M
Dual Step-Down Controllers Plus Linear-
Regulator Controller for Notebook Computers
10
______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
OUT1
= 1.20V, V
OUT2
= 2.50V, V
CC
= V
DD
= 5.0V, V
SKP1/
SDN
= V
SKP2/
SDN
= V
LIN/
SDN
= 5.0V,
T
A
= -40
°
C to +100
°
C
, unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN
V
CC
-
1.5
TYP
MAX
V
CC
-
0.5
UNITS
ILIM1 Default Threshold
V
BUCK1 Current-Limit Threshold
(Fixed)
BUCK1 Current-Limit Threshold
(Adjustable)
BUCK1 Negative Current-Limit
Threshold (Fixed)
CS1+ - CS1-; V
ILIM1
= V
CC
40
60
mV
CS1+ - CS1-; V
ILIM1
= 0.5V
CS1+ - CS1-; V
ILIM1
= 2.0V
40
160
60
240
mV
CS1+ - CS1-; V
ILIM1
= V
CC
-90
-55
mV
ILIM2 Default Threshold
V
CC
-
1.5
V
CC
-
0.5
V
BUCK2 Current-Limit Threshold
(Fixed)
BUCK2 Current-Limit Threshold
(Adjustable)
BUCK2 Negative Current-Limit
Threshold (Fixed)
V
CC
Undervoltage Lockout
Threshold
DH1 Gate-Driver On-Resistance
AGND - CS2; V
ILIM2
= V
CC
40
60
mV
AGND - CS2; V
ILIM2
= 0.5V
AGND - CS2; V
ILIM2
= 2.0V
40
160
60
240
mV
AGND - CS2; V
ILIM2
= V
CC
-90
-55
mV
Rising edge, hysteresis = 20mV
4.10
4.45
V
BST1
–
LX1 forced to 5V (Note 4)
DL1 high state (pullup) (Note 4)
DL1 low state (pulldown) (Note 4)
BST2
–
LX1 forced to 5V (Note 4)
DL2 high state (pullup) (Note 4)
DL2 low state (pulldown) (Note 4)
V
LINFB
= 1.05V, V
LINBSE
= 5V
V
LINFB
= 0.965V, V
LINBSE
= 0.5V
V
LINBSE
= 5V, I
LINBSE
= 4mA (sink)
V
LINBSE
= 5V, I
LINBSE
= 2mA to 10mA (sink)
D0
–
D4, SUS, PERF, LIN/
SDN
D0
–
D4, SUS, PERF, LIN/
SDN
DPSLP
DPSLP
4.5
4.5
2
8
8
3
0.4
1.017
0.8
0.4
DL1 Gate-Driver On-Resistance
DH2 Gate-Driver On-Resistance
DL2 Gate-Driver On-Resistance
LINBSE Drive Current
20
mA
LINFB Regulation Voltage
LINFB Load Regulation
Logic Input High Voltage
Logic Input Low Voltage
Logic Input High Voltage
Logic Input Low Voltage
0.988
-2.2
2.4
0.8
V
CC
-
0.4
3.15
1.65
V
%
V
V
V
V
Four-Level Logic V
CC
Level
TON, S0, S1, GAIN logic input high level
V
Four-Level Logic Float Level
Four-Level Logic REF Level
Four-Level Logic GND Level
TON, S0, S1, GAIN logic input upper midlevel
TON, S0, S1, GAIN logic input lower midlevel
TON, S0, S1, GAIN logic input low level
3.85
2.35
0.5
V
V
V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1994ETM+ 功能描述:DC/DC 開關(guān)控制器 Integrated Circuits (ICs) 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
MAX1994ETM+T 功能描述:DC/DC 開關(guān)控制器 Integrated Circuits (ICs) 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
MAX1994ETM-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
MAX1994EVKIT 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1816 MAX1980 MAX1994 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
MAX1995EGI 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
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