參數(shù)資料
型號： MAX1977EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
中文描述： DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-28
文件頁數(shù)： 4/32頁
文件大小： 497K
代理商： MAX1977EEI
M
High-Effic ienc y, Quad Output, Main Power-
S upply Controllers for Notebook Computers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
CC
, V
SHDN
= 5V,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Overvoltage Fault
Propagation Delay
FB3 or FB5 delay with 50mV overdrive
10
μs
PGOOD Threshold
FB3 or FB5 with respect to nominal output, falling edge,
typical hysteresis = 1%
-12
-9.5
-7
%
PGOOD Propagation Delay
PGOOD Output Low Voltage
PGOOD Leakage Current
Thermal Shutdown Threshold
Falling edge, 50mV overdrive
I
SINK
= 4mA
High state, forced to 5.5V
10
μs
V
μA
0.3
1
160
o
C
Output Undervoltage
Shutdown Threshold
FB3 or FB5 with respect to nominal output voltage
65
70
75
%
Output Undervoltage
Shutdown Blanking Time
From ON_ signal
10
22
35
ms
INPUTS AND OUTPUTS
Feedback Input Leakage Current
V
FB3
= V
FB5
= 2.2V
Low level
High level
Low level
Float level
High level
Low level
High level
Clear fault level/SMPS off level
Delay start level
SMPS on level
V
PRO
or V
TON
= 0 or 5V
V
ON_
= 0 or 5V
V
SKIP
= 0 or 5V
V
SHDN
= 0 or 24V
V
CS_
= 0 or 5V
V
ILIM3
, V
ILIM5
= 0 or 2V
Rising edge
Falling edge
-200
+40
+200
0.6
nA
PRO
Input Voltage
1.5
V
0.8
2.3
1.7
2.4
SKIP
Input Voltage
V
0.8
TON Input Voltage
2.4
V
0.8
2.3
1.7
2.4
-1
-2
-1
-1
-2
-0.2
1.2
0.96
ON3, ON5 Input Voltage
V
+1
+2
+1
+1
+2
+0.2
2.0
1.04
Input Leakage Current
μA
1.6
1.00
SHDN
Input Trip Level
V
DH_ Gate-Driver
Sink/Source Current
DH3, DH5 forced to 2V
2
A
DL_ Gate-Driver Source Current
DL_ Gate-Driver Sink Current
DH_ Gate-Driver On-Resistance
DL3 (source), DL5 (source), forced to 2V
DL3 (sink), DL5 (sink), forced to 2V
BST - LX_ forced to 5V
DL_, high state (pullup)
DL_, low state (pulldown)
1.7
3.3
1.5
2.2
0.6
A
A
4.0
5.0
1.5
DL_ Gate-Driver On-Resistance
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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 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:
MAX1978ETM 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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