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參數(shù)資料
| 型號(hào)： | DS2438 |
| 英文描述： | Smart Battery Monitor |
| 中文描述： | 智能電池監(jiān)視器 |
| 文件頁數(shù)： | 25/29頁 |
| 文件大?。?/td> | 351K |
| 代理商： | DS2438 |
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DS2438
25 of 29
INITIALIZATION PROCEDURE “RESET AND PRESENCE PULSES”
Figure 9
480
μ
s
≤
t
RSTL
<
∞
*
480
μ
s
≤
t
RSTH
<
∞
(includes recovery time)
15
μ
s
≤
t
PDH
< 60
μ
s
60
μ
s
≤
t
PDL
< 240
μ
s
Write Time Slots
A write time slot is initiated when the host pulls the data line from a high (inactive) logic level to a low
logic level. There are two types of write time slots: Write 1 time slots and Write 0 time slots. All write
time slots must be a minimum of 60
μ
s in duration with a minimum of a 1
μ
s recovery time between
individual write cycles.
The DS2438 samples the I/O line in a window of 15
μ
s to 60
μ
s after the I/O line falls. If the line is high,
a Write 1 occurs. If the line is low, a Write 0 occurs (See Figure 10).
For the host to generate a Write 1 time slot, the data line must be pulled to a logic low level and then
released, allowing the data line to pull up to a high level within 15 microseconds after the start of the
write time slot. For the host to generate a Write 0 time slot, the data line must be pulled to a logic low
level and remain low for the duration of the write time slot.
Read Time Slots
The host generates read time slots when data is to be read from the DS2438. A read time slot is initiated
when the host pulls the data line from a logic high level to logic low level. The data line must remain at a
low logic level for a minimum of 1
μ
s; output data from the DS2438 is then valid within the next 14
μ
s
maximum.
The host therefore must stop driving the I/O pin low in order to read its state 15
μ
s from the start of the
read slot. (see Figure 10). By the end of the read time slot, the I/O pin will pull back high via the external
pull-up resistor. All read time slots must be a minimum of 60
μ
s in duration with a minimum of a 1
μ
s
recovery time between individual read slots.
RESISTOR
MASTER
DS2438
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2438Z | Smart Battery Monitor |
| DS2442 | Battery Management |
| DS2501 | 1A VERY LOW DROPOUT VOLTAGE REGULATORS |
| DS2502 | 1 kbit Add-Only Memory |
| DS2502P-E48 | 48-Bit Node Address Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2438AZ | 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2438AZ/T&R | 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 8-SOIC/T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC |
| DS2438AZ/T&R | 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2438AZ+ | 功能描述:電池管理 Smart Battery Monitor RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| DS2438AZ+ | 制造商:Maxim Integrated Products 功能描述:IC BATTERY MONITOR LI-ION 10V SOIC-8 |
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