参数资料
型号: L99PM62XPTR
厂商: STMICROELECTRONICS
元件分类: 电源管理
英文描述: 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO36
封装: ROHS COMPLIANT, POWERSSO-36
文件页数: 13/98页
文件大小: 1117K
代理商: L99PM62XPTR
Description
L99PM62XP
Doc ID 16363 Rev 2
Figure 8.
Operating modes
2.4
Configurable window watchdog
During normal operation, the watchdog monitors the micro controller within a programmable
trigger cycle: (10 ms, 50 ms, 100 ms, 200 ms)
In VBAT standby and Flash program modes, the watchdog circuit is automatically disabled. In
V1 standby mode a wake up by timer is programmable in order to wake up the C (see
6.
Activation = ON if cyclic sense is selected.
7.
cyclic activation = pulsed ON during cyclic sense.
Active
Mode
V1: ON
Reset Generator: active
Watchdog: active
V1 Standby
Mode
V1: ON
Reset Generator: active
Watchdog:
OFF (if Iv1<Icmp or ICMP = 1)
Vbat Standby
Mode
V1: OFF
Reset Generator: OFF(Nreset=low)
Watchdog: OFF
Wake-up
Event
Wake-up
Event
SPI command
Vbat startup
All registers
Set to default,
Chip Reset bit (GSR, bit 5)
= 0 (active)
Vs > Vpor
7x Thermal Shutdown TSD2
OR
15 x WD fail
Flash Mode
Watchdog: OFF
VTXDL > Vflash
OR
VTXDC > Vflash
VTXDL > Vflash
OR
VTXDC > Vflash
VTXDL < Vflash
AND
VTXDC < Vflash
VTXDL > Vflash
OR
VTXDC > Vflash
SPI command
OR
7x Thermal Shutdown 2
OR
V1 short to GND
(V1 < 2V for 4ms after switch ON)
OR
15 x WD Failure
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