參數(shù)資料
型號(hào)： MAX1774EMJ
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 85
中文描述： 3 A SWITCHING CONTROLLER, 1250 kHz SWITCHING FREQ-MAX, CQCC32
封裝： 7 X 7 MM, 0.90 MM HEIGHT, QFN-32
文件頁(yè)數(shù)： 18/21頁(yè)
文件大?。?/td> 398K
代理商： MAX1774EMJ
nals, and be close together to improve noise rejection.
These traces should be used for current-sense signal
routing only and should not carry any load current.
Refer to the
MAX1774 evaluation kit
for layout exam-
ples.
S etting the V oltage Monitor Levels
The low battery and dead battery detector trip points
can be set by adjusting the resistor values of the
divider string (R1, R2, and R3) in Figure 1 according to
the following equations:
R1 = (R2 + R3)
[(V
BD
/ V
TH
) - 1]
R2 = R3
[(V
BL
/ V
BD
) - 1]
where V
BL
is the low battery voltage, V
BD
is the dead
battery voltage, and V
TH
= +1.20V. Choose R3 to be
less than 250k
.
M
Dual, High-Effic ienc y, S tep-Down
Converter with Bac kup Battery S witc hover
18
______________________________________________________________________________________
Figure 5. Typical Application Circuit (with Recharge)
PGNDC
FBC
LXC
INC
FBM
CS-
CS+
PGND
PDRV
NDRV
CVH
MAIN
C5
L1
10
μ
H
C
MAIN
47
F
R
CS
CORE
C
CORE
22
F
R10
R11
R8
R9
L2
C7
1
μ
F
R5
1M
R6
1M
R7
1M
GND
REF
CVL
LXB
BIN
IN
DBI
LBI
ACI
BACKUP
BATTERY
MAIN
BATTERY
R1
R13
C2
10
μ
F
C3
C4
0.22
μ
F
C1
10
μ
F
P1
R4
R2
R3
R12
D1
BKOFF
BKUP
LBO
ACO
SHDNM
MDRV
MAX1774
L3
22
μ
H
V
IN_AC
SHDNC
C6
10
μ
F
P2
N1
ON
OFF
ON
OFF
1.0V
TO
5.5V
2.6V
TO
5.5V
FDS8928A
INS
1M
2.7V
TO
20V
2.7V
TO
28V
NDS356AP
NSD03A10
0.9V
TO
5.5V
LXB2 (QFN ONLY)
D2
EP05
Q03L
相關(guān)PDF資料
PDF描述
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
MAX1776EUA 24V, 600mA Internal Switch, 100% Duty Cycle, Step-Down Converter
MAX1777EEI 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1774EVKIT 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Evaluation Kit for the MAX1774 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
MAX1775EEE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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
MAX1775EEE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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
MAX1775EEE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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
MAX1775EEE-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*