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| 型号： | MAX6894ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC SEQUENCE/SUPERVISOR 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 序列发生器 |
| 监视电压数目： | 4 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
19-3596; Rev 2; 9/10
Pin-Selectable, Octal/Hex/Quad, Power-Supply
Sequencers/Supervisors
General Description
The MAX6892/MAX6893/MAX6894 pin-selectable, mul-
tivoltage supply sequencers/supervisors monitor sever-
al voltage-detector inputs and one watchdog input,
asserting the respective voltage detector or watchdog
output when the inputs drop below the configured volt-
age thresholds or the watchdog timer expires. The
MAX6892 features eight voltage detector inputs and 10
outputs. The MAX6893 features six voltage-detector
inputs and eight outputs, while the MAX6894 features
four voltage detector inputs and six outputs. A RESET
output ensures all monitored inputs are above the set
thresholds. The voltage detector outputs are configured
as open drain. Manual reset and margin disable inputs
offer additional flexibility.
The thresholds of the MAX6892/MAX6893/MAX6894 are
selected through five logic inputs (TH0–TH4). The logic on
these five inputs selects the supply voltage tolerance (5%
or 10%) and one of 32 factory-set thresholds settings.
Watchdog and reset timeout periods can use factory
Features
o Pin-Selectable or User-Adjustable Voltage
Detector Thresholds
o Dedicated RESET and WDO Outputs
o Capacitor-Adjustable Reset and Watchdog
Timeout Periods
o Factory-Default Reset and Watchdog Timeout
Periods
o Up to Eight Independent, Open-Drain Power-Good
Outputs
o Enable Margining Disable and Manual Reset
Controls
o -40°C to +85°C Operating Temperature Range
o Small 5mm x 5mm Thin QFN Package
o Few External Components
o ±1% Threshold Accuracy
Ordering Information
default settings or are independently adjustable by con-
necting external capacitors.
PART
MAX6892 ETJ
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
32 Thin QFN-EP*
When any of the monitored voltages falls below its
threshold, the respective output asserts and remains
asserted for 6.25ms (typ) after the monitored voltage
exceeds the threshold. The outputs can be connected
to the shutdown or enable inputs of DC-DC regulators
to provide turn-on power sequencing to ensure proper
system initialization.
The MAX6892 is available in a 5mm x 5mm x 0.8mm,
32-pin, Thin QFN package, while the MAX6893/
MAX6894 are available in a 5mm x 5mm x 0.8mm, 28-
MAX6893 ETI -40°C to +85°C 28 Thin QFN-EP*
MAX6894 ETI -40°C to +85°C 28 Thin QFN-EP*
Note: Devices are also available in a lead(Pb)-free/RoHS-compli-
ant package. Specify lead-free by adding a plus (+) to the part
number when ordering.
*EP = Exposed pad.
Pin Configurations
TOP VIEW
pin, Thin QFN package. The MAX6892/MAX6893/
MAX6894 are specified to operate over the extended
+
32
31
30
29
28
27
26
25
temperature range (-40°C to +85°C).
Applications
Telecommunication/Central Office Systems
PG2
PG3
PG4
1
2
3
24
23
22
IN7
IN8
DBP
Networking Systems
Servers/Workstations
Base Stations
Storage Equipment
Multimicroprocessor/Voltage Systems
GND
PG5
PG6
PG7
PG8
4
5
6
7
8
*EP
MAX6892
21
20
19
18
17
VCC
ENABLE
SRT
SWT
TH4
9
10
11
12
13
14
15
16
Typical Operating Circuit appears at end of data sheet.
THIN QFN
*EXPOSED PAD INTERNALLY CONNECTED TO GND.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
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|---|---|
| MAX6895AALT | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL ADJUSTABLE SEQUENCING/ - Rail/Tube |
| MAX6895AALT/GH9 | 制造商:Maxim Integrated Products 功能描述:ULTRA-SMALL, ADJUSTABLE SEQUENCING/SUPERVISORY CIRCUITS - Rail/Tube |
| MAX6895AALT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR ADJV 10UA 6PIN UDFN - Rail/Tube |
| MAX6895AALT+T | 功能描述:监控电路 Adjustable Sequencer/Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6895AALT-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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