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參數(shù)資料
| 型號(hào)： | MAX6365PKA23-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | SOT23, Low-Power レP Supervisory Circuits with Battery Backup and Chip-Enable Gating |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | MINIATURE, SOT-23, 8 PIN |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 221K |
| 代理商： | MAX6365PKA23-T |
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M
SOT23, Low-Power μP Supervisory Circuits
with Battery Backup and Chip-Enable Gating
8
_______________________________________________________________________________________
MAX6365
MAX6366
MAX6367
MAX6368
CHIP-ENABLE
OUTPUT
CONTROL
V
CC
BATT
CE IN
20k
MR
(MAX6365 ONLY)
WDI
(MAX6366 ONLY)
RESET IN
(MAX6368 ONLY)
RESET
GENERATOR
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
1.235V
GND
1.235V
RESET
(RESET)
CE OUT
OUT
BATT ON (MAX6367 ONLY)
Detailed Description
The
Typical Operating Circuit
shows a typical connec-
tion for the MAX6365
–
MAX6368. OUT powers the static
random-access memory (SRAM). If V
CC
is greater than
the reset threshold (V
TH
), or if V
CC
is lower than V
TH
but higher than V
BATT
, V
CC
is connected to OUT. If
V
CC
is lower than V
TH
and V
CC
is less than V
BATT
,
BATT is connected to OUT. OUT supplies up to 150mA
from V
CC
. In battery-backup mode, an internal MOSFET
connects the backup battery to OUT. The on-resistance
of the MOSFET is a function of backup-battery voltage
and is shown in the BATT-to-OUT On-Resistance vs.
Temperature graph in the
Typical Operating Char-
acteristics
.
Chip-Enable Signal Gating
The MAX6365
–
MAX6368 provide internal gating of
CE
signals to prevent erroneous data from being written to
CMOS RAM in the event of a power failure. During nor-
mal operation, the
CE
gate is enabled and passes all
CE
transitions. When reset asserts, this path becomes
disabled, preventing erroneous data from corrupting
the CMOS RAM. All of these devices use a series trans-
mission gate from
CE
IN to
CE
OUT. The 2ns propaga-
tion delay from
CE
IN to
CE
OUT allows the devices to
be used with most μPs and high-speed DSPs.
During normal operation,
CE
IN is connected to
CE
OUT through a low on-resistance transmission gate.
This is valid when reset is not asserted. If
CE
IN is high
when reset is asserted,
CE
OUT remains high regard-
less of any subsequent transitions on
CE
IN during the
reset event.
If
CE
IN is low when reset is asserted,
CE
OUT is held
low for 12μs to allow completion of the read/write oper-
ation (Figure 1). After the 12μs delay expires, the
CE
Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6365PKA26 | 制造商:Maxim Integrated Products 功能描述:LOW-POWER UP SUPERVISORY ICS WITH B - Cut Tape Product |
| MAX6365PKA26+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V 15UA 8PIN SOT-23 - Rail/Tube |
| MAX6365PKA26+T | 功能描述:監(jiān)控電路 uPower Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6365PKA26-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| MAX6365PKA29 | 制造商:Maxim Integrated Products 功能描述:LOW-POWER UP SUPERVISORY ICS WITH B - Cut Tape Product |
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