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參數資料
| 型號： | ADM1065 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Super Sequencer-TM and Monitor |
| 中文描述： | 超音序器- TM和監視器 |
| 文件頁數： | 16/28頁 |
| 文件大小： | 497K |
| 代理商： | ADM1065 |
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ADM1065
SEQUENCING ENGINE APPLICATION EXAMPLE
The application in this section demonstrates the operation of
the SE. Figure 21 shows how the simple building block of a
single SE state can be used to build a power-up sequence for a
3-supply system.
Rev. 0 | Page 16 of 28
Table 7 lists the PDO outputs for each state in the same SE
implementation. In this system, the presence of a good 5 V supply
on VP1 and the VX1 pin held low are the triggers required for a
power-up sequence to start. The sequence intends to turn on
the 3.3 V supply next, then the 2.5 V supply (assuming successful
turn-on of the 3.3 V supply). Once all three supplies are good,
the PWRGD state is entered, where the SE remains until a fault
occurs on one of the three supplies, or it is instructed to go
through a power-down sequence by VX1 going high.
Faults are dealt with throughout the power-up sequence on a
case-by-case basis. The following sections, which describe the
individual blocks, use this sample application to demonstrate
the state machine’s actions.
0
IDLE1
IDLE2
EN3V3
DIS3V3
DIS2V5
PWRGD
FSEL1
FSEL2
SEQUENCE
STATES
MONITOR FAULT
STATES
TIMEOUT
STATES
VX1 = 0
VP1 = 1
VP1 = 0
(VP1 + VP2) = 0
(VP1 + VP2 + VP3) = 0
V(VP1 +
VP2 = 1
VP3 = 1
VP2 = 0
VX1 = 1
VP3 = 0
VP2 = 0
VP1 = 0
VX1 = 1
VX1 = 1
10ms
20ms
EN2V5
Figure 21. Sample Application Flow Diagram
Table 7. PDO Outputs for Each State
PDO Outputs
PDO1 = 3V3ON
PDO2 = 2V5ON
PDO3 = FAULT
IDLE1
0
0
0
IDLE2
0
0
0
EN3V3
1
0
0
EN2V5
1
1
0
DIS3V3
0
1
1
DIS2V5
1
0
1
PWRGD
1
1
0
FSEL1
1
1
1
FSEL2
1
1
1
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| ADM1065ACPZ | 功能描述:IC SEQUENCER/SUPERVISOR 40-LFCSP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:Super Sequencer® 標準包裝:1 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:高有效 復位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應商設備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
| ADM1065ASU | 制造商:AD 制造商全稱:Analog Devices 功能描述:Super Sequencer-TM and Monitor |
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