- 您现在的位置：买卖IC网 > PDF目录13330 > MAX795TESA+T (Maxim Integrated Products)IC SUPERVISOR MPU 8-SOIC PDF资料下载
参数资料
| 型号： | MAX795TESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/20页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.075V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
3.0V/3.3V Adjustable Microprocessor
Supervisory Circuits
_______________Detailed Description
General Timing Characteristics
The MAX793/MAX794/MAX795 are designed for 3.3V
and 3V systems, and provide a number of supervisory
functions (see the Selector Guide on the front page).
Figures 1 and 2 show the typical timing relationships of
the various outputs during power-up and power-down
with typical V CC rise and fall times.
Manual Reset Input (MAX793/MAX794)
Many microprocessor-based products require manual-
reset capability, allowing the operator, a test technician,
or external logic circuitry to initiate a reset. On the
MAX793/MAX794, a logic low on MR asserts reset. Reset
remains asserted while MR is low, and for t RP (200ms)
after it returns high. During the first half of the reset time-
V RST
V LL
out period (t RP ), the state of MR is ignored if PFO is exter-
nally forced low to facilitate enabling the battery fresh-
ness seal. MR has an internal 70μA pullup current, so it
can be left open if it is not used. This input can be driven
with TTL- or CMOS-logic levels, or with open-drain/collec-
tor outputs. Connect a normally open momentary switch
from MR to GND to create a manual-reset function; exter-
nal debounce circuitry is not required. If MR is driven
from long cables or the device is used in a noisy environ-
ment, connect a 0.1μF capacitor from MR to ground to
provide additional noise immunity.
Reset Outputs
A microprocessor’s (μP’s) reset input starts the μP in a
known state. These MAX793/MAX794/MAX795 μP
supervisory circuits assert a reset to prevent code exe-
cution errors during power-up, power-down, and
V SW
V CC
5 μ s
V LOWLINE (MAX793/MAX794)
t RP
V RESET (PULLED UP TO V CC )
V RESET (MAX793/MAX794)
t RP
V CE OUT
V WDO
(MAX793/MAX794)
V BOK
(MAX793)
PFO
(MAX793/MAX794)
BATT ON
V BATT
25 μ s
25 μ s
25 μ s
25 μ s
t RP / 2
t RP / 2
(PFO FOLLOWS PFI)
SHOWN FOR V CC = 0V to 3.3V, V BATT = 3.6V, CE IN = GND.
TYPICAL PROPAGATION DELAYS REFLECT A 40mV OVERDRIVE.
MAX794: V RESET IN = V CC (V RST IN / V RST )
Figure 1. Timing Diagram, V CC Rising
8
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| RBA30DTBZ-S273 | CONN EDGECARD 60POS R/A .125 SLD |
| RGM18DTBH | CONN EDGECARD 36POS R/A .156 SLD |
| VE-25F-EY-F1 | CONVERTER MOD DC/DC 72V 50W |
| MAX705EUA+ | IC SUPERVISOR MPU 8-UMAX |
| HSC25DRYN-S13 | CONN EDGECARD 50POS .100 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX796C/D | 功能描述:DC/DC 开关控制器 DICE SALES DICE RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX796CPE | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX796CSE | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX796CSE-T | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| MAX796EPE | 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
发布紧急采购，3分钟左右您将得到回复。