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)： 3/21頁
文件大小： 398K
代理商： MAX1774
M
Dual, High-Effic ienc y, S tep-Down
Converter with Bac kup Battery S witc hover
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
100
200
200
TYP
MAX
UNITS
%
ns
ns
Maximum Duty Cycle
Minimum On-Time
Minimum Off-Time
CORE REGULATOR
Input Voltage Range
400
400
650
650
V
INC
2.6
2.40
2.30
1.0
1
0.97
-0.1
5.5
2.55
2.45
5.0
V
V
INC
rising
V
INC
falling
2.47
2.37
INC Undervoltage Lockout
V
C or e Outp ut V ol ag e Ad ust Rang e
Maximum Core Load Current
FBC Regulation Threshold
FBC Input Current
Dropout Voltage
LXC Leakage Current
V
A
V
μ
A
V
μ
A
V
CORE
= 1.8V (Note 1)
V
INC
= +2.5 to +5.5V, I
O U T C
= 0 to 200mA
V
FBC
= +1.3V
I
OUTC
= 400mA
V
INC
= +5.5V, V
L X C
= 0 to +5.5V
1.5
1.0
V
FBC
I
FBC
1.03
0.1
0.25
10
0.1
I
LXC
-10
LXC P-Channel, N-Channel On-
Resistance
0.25
0.5
LXC P-Channel Current Limit
LX C P C hannel M ni m um C ur r ent
LXC N-Channel Valley Current
I
CLC
1200
100
900
1800
250
1400
3000
400
2400
mA
mA
mA
LXC N-Channel Zero-Crossing
Current
40
110
170
mA
LXC Dead Time
Max Duty Cycle
Minimum On-Time
Minimum Off-Time
BACKUP REGULATOR
Backup Battery Input Voltage
LXB N-Channel On-Resistance
LXB Current Limit
LXB Leakage Current
50
ns
%
ns
ns
100
170
170
400
400
690
690
V
BBATT
0.9
5.5
3.5
600
1
V
mA
μ
A
V
CS-
= +3.3V, I
LXB
= 50mA
1.9
350
200
V
LXB
= +5.5V, V
FBM
= +1.3V
V
BIN
= +5.5V, CS- =
BKOFF
=
SHDNC
=
SHDNM
= GND
BIN Leakage Current
I
BIN
1
μ
A
BIN, CS- Switch Resistance
V
CS-
= +3.3V,
BKOFF
= GND,
SHDNM
= CVL
7.5
15
BIN Switch Zero-Crossing
Threshold
V
BIN
= + 2.5V
BKOFF
=
SHDNC
=
SHDNM
= C V L
17
35
mV
LXB Maximum On-Time
Zero Crossing Detector Timeout
2.8
5.6
40
9.2
μ
s
μ
s
ELECTRICAL CHARACTERISTICS (continued)
(Figure 1, V
IN
= V
INS
= +12V, V
INC
= V
CS-
= V
CS+
= +3.3V, V
CORE
= +1.8V,
T
A
= 0
°
C to +85
°
C,
unless otherwise noted. Typical values are
at T
A
= +25
°
C.)
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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