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參數(shù)資料
| 型號(hào)： | L6924D013TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Battery charger system with integrated power switch for Li-ION/Li-POLYMER |
| 中文描述： | 電池為鋰聚合物集成電源開關(guān)，充電系統(tǒng) |
| 文件頁數(shù)： | 29/38頁 |
| 文件大小： | 1350K |
| 代理商： | L6924D013TR |
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L6924D
Application information: monitoring and protection
29/38
8.3
Status pins
To indicate various charger status conditions, there are two open-collector output pins, ST1 and
ST2. These status pins can be used either to drive status LEDs, connected with an external
power source, by a resistor, or to communicate to a host processor. These pins must never be
connected to the V
IN
when it overcomes their absolute value (6V).
8.4
Shutdown
The L6924D has a shutdown pin; when the pin is connected to GND, the device is operating.
When the pin is left floating, the device enters in shutdown mode, the consumption from the
input is dramatically reduced to 60
μ
A (typ.). In this condition, V
REF
is turned OFF.
Figure 23. ST1 and ST2 connection with LEDs Or
μ
C
Table 6.
Status LEDs Indications
Charge condition
Description
ST1
ST2
Charge in progress
When the device is in Pre-Charge or fast-
Charge status
ON
OFF
Charge done
When the charging current goes lower
than the I
ENDTH
OFF
ON
Stand By mode
When the input voltage goes under V
BAT
-
50mV
OFF
OFF
Bad battery temperature
When the voltage on the TH pin is out of
the programmable window, in accordance
with the NTC or PTC thermistor
ON
ON
Battery absent
When the battery pack is removed
ON
ON
Over time
When T
MAXCH
or T
MAXPRECH
is expired
ON
ON
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| L6924U | 功能描述:電池管理 USB Battery Charger System w/integra 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 |
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| L6925 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6925013TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
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