參數(shù)資料
型號： MAX1774
廠商： Maxim Integrated Products, Inc.
英文描述： 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 125
中文描述： 雙路、高效率、降壓型轉(zhuǎn)換器，帶有備用電池切換開關(guān)
文件頁數(shù)： 7/21頁
文件大?。?/td> 398K
代理商： MAX1774
M
Dual, High-Effic ienc y, S tep-Down
Converter with Bac kup Battery S witc hover
_______________________________________________________________________________________
7
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
CVL, CVH REGULATORS
CVL Output Voltage
CVL Switchover Threshold
V
CVL
I
CVL
= 50mA, V
CS-
= 0
V
CS-
rising, hysteresis = 100mV typical
2.6
2.40
3.1
2.55
V
V
V
IN
= +4V, I
CVH
= 25mA
V
IN
- 2.8
CVH Output Voltage
V
CVH
V
IN
= +12V, I
CVH
= 50mA
V
IN
- 3.65
V
V
CVL
rising
V
CVL
falling
2.40
2.30
2.57
2.47
CVL Undervoltage Lockout
V
LOW-VOLTAGE COMPARATORS
V
BKOFF
rising
V
BKOFF
falling
V
BKOFF
= +5.5V
0.51
0.59
Backup Regulator Shutdown
Threshold
V
BKOFF
0.46
0.54
V
BKOFF
Input Bias Current
1
μA
LBI Threshold
V
LBI
V
LBI
falling, hysteresis = 50mV typical
1.17
1.23
V
DBI Threshold
V
DBI
V
DBI
falling, hysteresis = 50mV typical
1.17
1.23
V
BKUP
Low-Input Threshold
0.4
V
LBI, DBI Input Leakage Current
V
LBI
, V
DBI
= +28V
100
nA
LBO
,
BKUP
,
ACO
,
MDRV
Output Low
I
SINK
= 1mA
0.4
V
LBO
,
BKUP
,
ACO
,
MDRV
Output Leakage Current
V
LBI
= +1.3V, V
ACI
= V
IN
= +12V, V
ACO
=
V
LBO
= V
BKUP
= +5.5V, V
MDRV
= +28V
1.0
μA
ACI Threshold
ACI Input Leakage Current
MAIN Input Leakage Current
LOGIC INPUTS
SHDNM
,
SHDNC
Input Low
Voltage
V
ACI
- V
INS
, ACI falling
V
ACI
= +1.3V
V
INS
= +3.3V
0.5
100
10
V
nA
μA
0.4
V
SHDNM
,
SHDNC
Input High
Voltage
2.0
V
SHDNM
,
SHDNC
Input Low
Current
SHDNM
=
SHDNC
= GND
-1
1
μA
SHDNC
Input High Current
SHDNM
Input High Current
V
SHDNC
= +5.5V
V
SHDNM
= +28V
5
μA
μA
25
ELECTRICAL CHARACTERISTICS (continued)
(Figure 1, V
IN
= V
INS
= +12V, V
INC
= V
CS+
= V
CS-
= +3.3V, V
CORE
= +1.8V,
T
A
= -40
°
C to +85
°
C,
unless otherwise noted.) (Note 2)
Note 1:
This parameter is guaranteed based on the LXC P-channel current limit and the LXC N-channel valley current.
Note 2:
Specifications to -40
°
C are guaranteed by design and not production tested.
相關(guān)PDF資料
PDF描述
MAX1774EEI Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover
MAX1774EMJ 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 85
MAX1775 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125
MAX1775EEE 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125
MAX1776 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1774EEI 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1774EEI+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Step-Down w/Switchover RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1774EEI+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Step-Down w/Switchover RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1774EEI-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1774EGJ 制造商:Maxim Integrated Products 功能描述:
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