参数资料
型号: MAX6873ETJ+T
厂商: Maxim Integrated Products
文件页数: 13/48页
文件大小: 0K
描述: IC SEQUENCE/SUPERVISOR 32TQFN
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,推挽式
复位: 高有效/低有效
复位超时: 可调节/可选择
电压 - 阀值: 5 种可调阀值电压
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
Table 1. Programmable Features
FEATURE
?
Primary undervoltage threshold
DESCRIPTION
High-Voltage Input
(IN1)
Bipolar-Voltage Input
(IN2)
Positive-Voltage Input
IN3–IN6 (MAX6872),
IN3–IN4 (MAX6873)
?
?
?
?
?
?
?
?
?
?
?
Secondary overvoltage or undervoltage threshold
+2.5V to +13.2V threshold in 50mV increments
+1.25V to +7.625V threshold in 25mV increments
Primary undervoltage threshold
Secondary overvoltage or undervoltage threshold
±2.5V to ±15.25V threshold in 50mV increments
±1.25V to ±7.625V threshold in 25mV increments
Primary undervoltage threshold
Secondary overvoltage or undervoltage threshold
+1V to +5.5V threshold in 20mV increments
+0.5V to +3.05V threshold in 10mV increments
?
Programmable Outputs ?
Active high or active low
Open-drain, weak pullup, or charge-pump output
PO1–PO4 (MAX6872),
PO1–PO2 (MAX6873)
Programmable Outputs
PO5–PO8 (MAX6872),
PO3–PO5 (MAX6873)
?
?
?
?
?
?
?
?
Weak pullup to IN3–IN6 (IN3 or IN4 for MAX6873) or ABP
Dependent on MR , MARGIN , IN_, GPI1–GPI4 , WD1 and WD2, and/or PO_
Programmable timeout periods of 25μs, 1.5625ms, 6.25ms, 25ms, 50ms, 200ms, 400ms, or 1.6s
Active high or active low
Open-drain, weak pullup, or push-pull output
Weak pullup to IN3–IN6 (IN3 or IN4 for MAX6873) or ABP
Push-pull to IN3–IN6 (IN3 or IN4 for MAX6873)
Dependent on MR , MARGIN , IN_, GPI1–GPI4 , WD1 and WD2, and/or PO_
?
General-Purpose Logic ?
Programmable timeout periods of 25μs, 1.5625ms, 6.25ms, 25ms, 50ms, 200ms, 400ms, or 1.6s
Active high or active low logic levels
Inputs (GPI1–GPI4)
Watchdog Timers
Manual Reset Input
( MR )
Margining Input
( MARGIN )
Write Disable
Configuration Lock
?
?
?
?
?
?
?
?
?
?
?
?
?
Configure GPI_ as inputs to watchdog timers or programmable output stages
Clear dependent on any combination of one GPI_ input and one programmable output, a GPI_ input
only, or a programmable output only
Initial watchdog timeout period of 6.25ms, 25ms, 100ms, 400ms, 1.6s, 6.4s, 25.6s, or 102.4s
Normal watchdog timeout period of 6.25ms, 25ms, 100ms, 400ms, 1.6s, 6.4s, 25.6s, or 102.4s
Watchdog enable/disable
Initial watchdog timeout period enable/disable
Forces PO_ into the active output state when MR = GND
PO_ deassert after MR releases high and the PO_ timeout period expires
PO_ cannot be a function of MR only
Holds PO_ in existing state or asserts PO_ to a programmed output state, independent of changes in
monitored inputs or watchdog timers, when MARGIN = GND
Overrides MR when both assert at the same time
Locks user EEPROM based on PO_
Locks configuration EEPROM
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