参数资料
| 型号： | ADM9690ARNZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 3/6页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR PS/WATCHDOG 8SOIC |
| 标准包装： | 98 |
| 类型： | 监视器电路 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 标准为 10 ms、50 ms |
| 电压 - 阀值： | 4.31V |
| 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： | 管件 |
ADM9690
ABSOLUTE MAXIMUM RATINGS*
PIN FUNCTION DESCRIPTIONS
(T A = +25 ° C unless otherwise noted)
V CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
Mnemonic
Function
V MON
. . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V CC + 0.3 V
V CC
Power Supply Input; +5 V.
Input Current
V CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA
GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . 200 mA
Power Dissipation, R-8 SOIC . . . . . . . . . . . . . . . . . . 400 mW
θ JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 120 ° C/W
Industrial (A Version) . . . . . . . . . . . . . . . . . . –40 ° C to +85 ° C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . +300 ° C
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . +215 ° C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . +220 ° C
Storage Temperature Range . . . . . . . . . . . . –65 ° C to +150 ° C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational sections
of this specification is not implied. Exposure to absolute maximum ratings for
extended periods of time may affect device reliability.
ORDERING GUIDE
V MON
GND
RESET(1)
RESET(2)
WDI
Voltage Monitoring Input.
0 V. Ground reference for all signals.
Logic Output. RESET(1) goes low if V MON
falls below the Reset Threshold or the Watch-
dog timer is not serviced within its timeout
period. The reset threshold is typically 4.4 V
for the ADM9690. RESET(1) remains low
for 50 ms after V CC returns above the thresh-
old. RESET(1) also goes low for 50 ms if the
Watchdog Timer is not serviced within its
timeout period.
Logic Output. RESET(2) goes low simulta-
neously with RESET(1) but remains low for
an additional 10 ms.
Watchdog Input. If an edge is not detected on
WDI within the selectable watchdog timeout
period, RESET(1) and RESET(2) are forced
low for their respective timeout periods. The
Temperature
Package
Package
watchdog timer restarts with each positive
Model
ADM9690AR
Range
–40 ° C to +85 ° C
Description
8-Lead Narrow
Body SOIC
Option
SO-8
or negative going transition on the WDI
line. Following a reset it is restarted when
RESET(1) goes inactive (high). The Watch-
dog Timer may be disabled if WDI is left
floating or is driven to midsupply.
PIN CONFIGURATION
V MON 1
8 V CC
SEL1, 2
Watchdog Timeout selection inputs. Refer to
Table I.
GND 2
ADM9690
7 RESET(1)
TOP VIEW
SEL1 3 (Not to Scale) 6 RESET(2)
REV. A
SEL2 4
5 WDI
–3 –
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