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参数资料
| 型号： | MAX6876ETX+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/39页 |
| 文件大小： | 0K |
| 描述： | IC TRACKER/SUPERVISOR MON 36TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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： | 36-WFQFN 裸露焊盘 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
| 包装： | 管件 |
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EEPROM-Programmable, Quad,
Power-Supply Tracker/Sequencer Circuit
Table 9. GATE-Delay Time Settings
REGISTER
ADDRESS
EEPROM MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
“ 000 ” gate-delay timer value = 25μs
“ 001 ” gate-delay timer value = 12.5ms
“ 010 ” gate-delay timer value = 25.0ms
0Fh
2Fh
[7:5]
“ 011 ” gate-delay timer value = 50.0ms
“ 100 ” gate-delay timer value = 100.0ms
“ 101 ” gate-delay timer value = 200.0ms
“ 110 ” gate-delay timer value = 400.0ms
“ 111 ” gate-delay timer value = 1600.0ms
Table 10. FAULT Power-Up and Power-Down Time Settings
REGISTER
ADDRESS
EEPROM MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
Bit [7:6] “ 00 ” fault power-up timer value = 25ms
[7:6]
“ 01 ” fault power-up timer value = 50ms
“ 10 ” fault power-up timer value = 100ms
“ 11 ” fault power-up timer value = 200ms
0Ah
2Ah
Bit [5:4] “ 00 ” fault power-down timer value = 25ms
[5:4]
“ 01 ” fault power-down timer value = 50ms
“ 10 ” fault power-down timer value = 100ms
“ 11 ” fault power-down timer value = 200ms
Outputs
GATE_
The MAX6876 features four GATE_ outputs to drive four
external n-channel FET gates. The following conditions
must be met before GATE_ begins enhancing the
external n-channel FET_:
1) All monitored inputs (IN1 – IN4) are above their
selected thresholds (0.5V to 5.5V)
2) At least one IN_ input or V CC is above 2.7V
3) Drive ENABLE high
4) TRKEN > 1.25V
At power-up mode, GATE_ voltages are enhanced con-
trol loops so all OUT_ voltages track together at a user-
selected slew rate. Each GATE_ is internally pulled up
to 5V above its relative IN_ voltage to fully enhance the
external n-channel FET when power-up is complete. In
sequencing/tracking mode, a gate delay timeout is
internally counted prior to the start of each control ramp
(see Figures 1 and 2 and Table 9).
FAULT
The MAX6876 offers an open-drain, active-low tracking
fault alarm ( FAULT ). FAULT asserts low when a power-
up phase is not completed within the specified fault
period or if tracking voltages fail by more than ±250mV.
For multiple MAX6876 applications, FAULT is an
input/output pin and communicates fault information
between master/slave devices. Connect all FAULT pins
in an ORed configuration to force simultaneous shut-
down on all MAX6876s (Table 10.) See the Typical
Application Circuit .
Power-Good Outputs (PG_)
The MAX6876 features four power-good (PG_) outputs.
PG_ outputs are open-drain and require external
pullups.
When the OUT_ output is within the selected percent-
age of the IN_ voltage range (V TH_PG ), the correspond-
ing PG_ output goes high impedance. PG_ stays low
until the OUT_ voltage exceeds the programmable
V TH_PG threshold for more than t POK (Table 11).
22
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6876ETX+ | 功能描述:监控电路 EEPROM-Prog Quad Power-Sup Sequencer 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 |
| MAX6876ETX+T | 功能描述:监控电路 EEPROM-Prog Quad Power-Sup Sequencer 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 |
| MAX6876ETX-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 |
| MAX6876EVCMOD2 | 功能描述:监控电路 Programmers, Development Systems 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 |
| MAX6876EVKIT | 功能描述:监控电路 Programmers, Development Systems 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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