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参数资料
| 型号： | MAX6876ETX+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | EEPROM-Programmable, Quad, Power-Supply Tracker/Sequencer Circuit |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC36 |
| 封装： | 6 X 6 MM, 0.80 MM HEIGHT, MO-220WJJD-1, TQFN-36 |
| 文件页数： | 6/39页 |
| 文件大小： | 425K |
| 代理商： | MAX6876ETX+T |
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MAX6876
EEPROM-Programmable, Quad,
Power-Supply Tracker/Sequencer Circuit
14
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voltages at the sources of the MOSFETs are compared
to each other to ensure that the voltage differential
between each monitored supply does not exceed
250mV (typ). Tracking is dynamically adjusted to force
all outputs to track within a ±125mV window from a ref-
erence ramp; if, for any reason, any supply fails to track
within ±250mV from the reference ramp, the FAULT
output is asserted, the power-up mode is terminated,
and all outputs are powered off. Power-up mode is in
the same way terminated if the controlled voltages fail
to complete the ramp up within a programmable FAULT
timeout. The MAX6876 generates all required voltages
(with internal charge pumps) and timing to control up to
four external n-channel MOSFETs for the OUT1–OUT4
supply voltages.
A synchronization feature allows up to 16 voltages to
be tracked simultaneously. In addition, HOLD and
SYNCH communicate synchronization status between
master/slave devices in multiple MAX6876 applications.
Other features of the MAX6876 include a reset circuit
with an I2C-programmable timeout feature. A manual
reset input (MR) and a margin disable input (MARGIN)
allow for more control during the manufacturing process.
The device also features four power-good outputs (PG_),
an overcurrent output (OC), and a bus-removal safe
(REM) output. The device has an accurate internal 1.25V
reference; for greater accuracy, connect an external
+1.25V reference to REFIN.
COMP
CONTROL
LOGIC
ENABLE
TRKEN
MR
MARGIN
1.25V
INTERNAL
SUPPLY/UVLO
EEPROM/
CONFIGURATION
REGISTERS
REF
REFIN
A1
A0
SCL
SDA
GND
IN1
UV/OV
IN2
UV/OV
IN3
UV/OV
IN4
UV/OV
REM
OC
FAUL
T
RESET
SYNCH
HOLD
TRACKING
MONITORS
OUT1
OUT2
OUT3
OUT4
IN1
IN2
IN3
IN4
RAMP
GENERATOR
IN1
IN2
IN3
IN4
VCC
CHARGE
PUMP
OVER-
CURRENT
DETECT
VCP1 = VIN1 + 5V
COMP
IN1
VTHPG
IN2 TO OUT2
CONTROL BLOCK
GATE2
PG2
OUT2
IN3 TO OUT3
CONTROL BLOCK
GATE3
PG3
OUT3
IN4 TO OUT4
CONTROL BLOCK
GATE4
PG4
OUT4
PG1
MAX6876
RAMP
ABP
GND
ABP
GATE1 OUT1
ABP
Functional Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX6877ETG | 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 |
| MAX6877ETG+ | 功能描述:监控电路 Triple 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 |
| MAX6877ETG+T | 功能描述:监控电路 Triple 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 |
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