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參數(shù)資料
| 型號(hào)： | ADM8691 |
| 廠(chǎng)商： | Analog Devices, Inc. |
| 英文描述： | Linear 1-cell Li-Ion Battery Charger w/Integrated FET, One LED 20-HTSSOP -20 to 70 |
| 中文描述： | 微處理器監(jiān)控電路 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 207K |
| 代理商： | ADM8691 |
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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
Mcroprocessor
Supervisory Circuits
ADM8690–ADM8695
FEATURES
Upgrade for ADM690/ADM695, MAX690–MAX695
Specified Over Temperature
Low Power Consumption (0.7 mW)
Precision Voltage Monitor
Reset Assertion Down to 1 V V
CC
Low Switch On-Resistance 0.7
V
Normal,
7
V
in Backup
High Current Drive (100 mA)
Watchdog Timer—100 ms, 1.6 s, or Adjustable
400 nA Standby Current
Automatic Battery Backup Power Switching
Extremely Fast Gating of Chip Enable Signals (3 ns)
Voltage Monitor for Power Fail
Available in TSSOP Package
APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
FUNCT IONAL BLOCK DIAGRAMS
ADM8691
ADM8693
ADM8695
4.65V
1
RESET AND
WATCHDOG
TIMEBASE
RESET
GENERATOR
WATCHDOG
TRANSITION DETECTOR
WATCHDOG
TIMER
1.3V
V
OUT
CE
OUT
LOW LINE
RESET
RESET
WATCHDOG
OUTPUT (
WDO
)
POWER FAIL
OUTPUT (
PFO
)
V
BATT
V
CC
CE
IN
OSC IN
OSC SEL
WATCHDOG
INPUT (WDI)
POWER FAIL
INPUT (PFI)
BATT ON
1
VOLTAGE DETECTOR = 4.65V (ADM8691, ADM8695)
4.40V (ADM8693)
ADM8690
ADM8692
ADM8694
4.65V
1
V
OUT
RESET
POWER FAIL
OUTPUT (
PFO
)
V
BATT
V
CC
WATCHDOG
INPUT (WDI)
POWER FAIL
INPUT (PFI)
1
VOLTAGE DETECTOR = 4.65V (ADM8690, ADM8694)
4.40V (ADM8692)
2
RESET PULSE WIDTH = 50ms (AD8690, ADM8692)
200ms (ADM8694)
WATCHDOG
TRANSITION DETECTOR
(1.6s)
RESET
GENERATOR
2
1.3V
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
GE NE RAL DE SCRIPT ION
T he ADM8690–ADM8695 family of supervisory circuits offers
complete single chip solutions for power supply monitoring and
battery control functions in microprocessor systems. T hese
functions include
μ
P reset, backup battery switchover, watchdog
timer, CMOS RAM write protection and power failure warning.
T he complete family provides a variety of configurations to sat-
isfy most microprocessor system requirements.
T he ADM8690, ADM8692 and ADM8694 are available in
8-pin DIP packages and provide:
1. Power-on reset output during power-up, power-down and
brownout conditions. T he
RESET
output remains opera-
tional with V
CC
as low as 1 V.
2. Battery backup switching for CMOS RAM, CMOS
microprocessor or other low power logic.
3. A reset pulse if the optional watchdog timer has not been
toggled within a specified time.
4. A 1.3 V threshold detector for power fail warning, low battery
detection or to monitor a power supply other than +5 V.
T he ADM8691, ADM8693 and ADM8695 are available in
16-pin DIP and small outline packages (including T SSOP) and
provide three additional functions:
1. Write protection of CMOS RAM or EEPROM.
2. Adjustable reset and watchdog timeout periods.
3. Separate watchdog timeout, backup battery switchover, and
low V
CC
status outputs.
T he ADM8690–ADM8695 family is fabricated using an ad-
vanced epitaxial CMOS process combining low power con-
sumption (0.7 mW), extremely fast Chip Enable gating (3 ns)
and high reliability.
RESET
assertion is guaranteed with V
CC
as
low as 1 V. In addition, the power switching circuitry is de-
signed for minimal voltage drop thereby permitting increased
output current drive of up to 100 mA without the need of an
external pass transistor.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADM8691AN | Linear 1-cell Li-Ion Battery Charger w/Integrated FET, One LED 20-HTSSOP -20 to 70 |
| ADM8693 | bqTINY(TM) Linear 1-cell Li-Ion Charger w/ 1-A FET, AC Present and Temp Sense in QFN-10 10-SON -40 to 85 |
| ADM8693AN | bqTINY(TM) Linear 1-cell Li-Ion Charger w/ 1-A FET, AC Present & Charge Enable in QFN-10 10-SON -40 to 85 |
| ADM8695AN | bqTINY-II Dual Input USB/AC Adpater 1-Cell Li-Ion Charger w/Charge Enable & Temp Sense in QFN-10 10-SON -40 to 125 |
| ADM8695ARW | bqTINY-II Dual Input USB/AC Adpater 1-Cell Li-Ion Charger w/Charge Enable & Power Good in QFN-10 10-SON -40 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM8691AN | 制造商:Analog Devices 功能描述:Processor Supervisor 4.65V 4.75V to 5.5V 16-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:IMPROVED ADM691 I.C. - Bulk 制造商:Analog Devices 功能描述:IC SUPERVISORY CCT 8691 DIP16 |
| ADM8691ANZ | 功能描述:IC SUPERVSR MPU 4.65V ADJ 16DIP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:高有效 復(fù)位超時(shí):- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線(xiàn) 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱(chēng):NCP301HSN18T1GOSCT |
| ADM8691ARN | 功能描述:IC SUPERVSR MPU 4.65V ADJ 16SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:高有效 復(fù)位超時(shí):- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線(xiàn) 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱(chēng):NCP301HSN18T1GOSCT |
| ADM8691ARN-REEL | 功能描述:IC SUPERVSR MPU 4.65V ADJ 16SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:高有效 復(fù)位超時(shí):- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線(xiàn) 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱(chēng):NCP301HSN18T1GOSCT |
| ADM8691ARNZ | 功能描述:IC SUPERVSR MPU 4.65V ADJ 16SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開(kāi)路漏極或開(kāi)路集電極 復(fù)位:高有效 復(fù)位超時(shí):- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線(xiàn) 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱(chēng):NCP301HSN18T1GOSCT |
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