參數(shù)資料
型號: X40420V14IZ-B
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: Dual Voltage Monitor with Intergrated CPU Supervisor
中文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO14
封裝: 4.40 MM, ROHS COMPLIANT, PLASTIC, MO-153AC, TSSOP-14
文件頁數(shù): 8/25頁
文件大?。?/td> 395K
代理商: X40420V14IZ-B
8
May 25, 2006
Figure 6. V
TRIPX
Set/Reset Sequence (X = 1, 2)
WEL: Write Enable Latch (Volatile)
The WEL bit controls the access to the memory and to
the Register during a write operation. This bit is a vola-
tile latch that powers up in the LOW (disabled) state.
While the WEL bit is LOW, writes to any address,
including any control registers will be ignored (no
acknowledge will be issued after the Data Byte). The
WEL bit is set by writing a “1” to the WEL bit and
zeroes to the other bits of the control register.
Once set, WEL remains set until either it is reset to 0
(by writing a “0” to the WEL bit and zeroes to the other
bits of the control register) or until the part powers up
again. Writes to the WEL bit do not cause a high volt-
age write cycle, so the device is ready for the next
operation immediately after the stop condition.
V
TRIPX
Programming
Apply V
CC
and Voltage
> Desired V
TRIPX
to V
X
Decrease V
X
Actual V
TRIPX -
Desired V
TRIPX
DONE
Set Higher V
X
Sequence
Error < MDE
| Error | < | MDE |
YES
NO
Error > MDE
+
Desired
V
<
Present Value
Execute
No
YES
Execute
V
TRIPX
Reset Sequence
Set V
X
= desired V
TRIPX
New V
X
applied =
Old V
X
applied + | Error |
New V
X
applied =
Old V
X
applied - | Error |
Execute Reset V
TRIPX
Sequence
Output Switches
Note:
X = 1, 2
Let:
MDE = Maximum Desired Error
Vx = V
CC
, VxMON
MDE
+
Desired Value
MDE
Acceptable
Error Range
Error = Actual - Desired
X40420, X40421
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