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参数资料
| 型号： | MAX16032ETM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/41页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM MON EEPROM 48-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 43 |
| 类型： | 多压监控器 |
| 监视电压数目： | 6 |
| 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： | 6 种可选阀值组合 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（7x7） |
| 包装： | 管件 |
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EEPROM-Based System Monitors
with Nonvolatile Fault Memory
Current Monitoring
The MAX16031 provides current-sense inputs CS+/CS-
of the sense resistor. See Table 4 for a description of
r19h. The ADC output for a current-sense conversion is:
(
X ADC = SENSE V × 2 8
)
and a current-sense amplifier for current monitoring
(see Figure 3). There are two programmable current-
sense thresholds: primary overcurrent and secondary
overcurrent. For fast fault detection, the primary over-
V × A
V RBP
?
1
current threshold is implemented with an analog com-
parator connected to the OVERC output. The primary
threshold equation is:
where X ADC is the 8-bit decimal ADC result, V SENSE is
V CS+ - V CS- , A V is the current-sense voltage gain set
by r19h[1:0], and V RBP is the reference voltage at RBP
I TH =
V CSTH
R SENSE
(1.4V typical).
OVERC is latched when the primary overcurrent thresh-
old is exceeded by programming r5Ch[2]. The latch is
where I TH is the current threshold to be set, V CSTH is
the threshold set by r19h[1:0], and R SENSE is the value
V MON
cleared by writing a ‘1’ to r53h[6]. OVERC depends
only on the primary overcurrent threshold. Other fault
outputs are programmed to depend on the secondary
overcurrent threshold. The secondary overcurrent
threshold is implemented through ADC conversions
and digital comparisons. The secondary overcurrent
threshold contains programmable time delay options
R SENSE
CS+
CS-
-
+
*A V
TO ADC MUX
located in r5Ch[1:0]. Primary and secondary current-
sense faults are enabled/disabled through r1Bh[3].
Temperature Monitoring
The MAX16031 provides two sets of remote diode inputs,
LOAD
V L
MAX16031
-
DXP1/DXN1 and DXP2/DXN2, and one internal tempera-
ture sensor. The MAX16032 provides one set,
DXP1/DXN1, and one internal temperature sensor.
Calibration registers provide adjustments for gain and off-
OVERC
+
+
-
*V CSTH
set to accommodate different types of remote diodes.
The internal temperature sensor circuitry is factory
trimmed. In addition to offset/gain trimming, a program-
mable lowpass filter is provided. See Figure 4 for the
block diagram of the temperature sensor circuitry. The
*ADJUSTABLE BY r19h [1:0]
Figure 3. Current-Sense Block Diagram
remote diode is actually a diode-connected transistor.
See Application Notes AN1057 and AN1944 for informa-
tion on error budget and several transistor manufacturers.
Table 4. Overcurrent Primary Threshold and Remote Temperature Sense Gain Trim
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
Overcurrent Primary Threshold and Current-Sense Gain Setting:
00 = 200mV threshold, AV = 6V/V
19h
99h
[1:0]
01 = 100mV threshold, AV = 12V/V
10 = 50mV threshold, AV = 24V/V
11 = 25mV threshold, AV = 48V/V
[7:2]
Remote Temperature Sensor 1 Gain Trim. Note bit 6 is inverted.
4Fh
CFh
[5:0]
[7:6]
Remote Temperature Sensor 1 Gain Trim
Not used
______________________________________________________________________________________
19
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16032ETM+ | 功能描述:监控电路 EEPROM-Based w/NV Fault Memory 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 |
| MAX16032ETM+T | 功能描述:监控电路 EEPROM-Based w/NV Fault Memory 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 |
| MAX16033LLB23+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 2.32V 10PIN UDFN - Rail/Tube |
| MAX16033LLB23+T | 功能描述:监控电路 Battery Backup 2.5V-Ep 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 |
| MAX16033LLB26+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 2.63V 10PIN UDFN - Rail/Tube |
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