參數(shù)資料
型號： 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)： 6/38頁
文件大?。?/td> 1350K
代理商： L6924D013TR
Pins description and connection diagrams
L6924D
6/38
2.1
Pin description
Table 2.
Pin
Pin functions
I/O
Name
Pin description
1
I
V
IN
Input pin of the power stage.
2
I
V
INSNS
Supply voltage pin of the signal circuitry.
The operating input voltage range is from 2.5V and 12V, and the start-up
threshold is 4V.
3-4
O
ST
2
-ST
1
Open-collector status pins.
Maximum charging time program pin.
It must be connected with a capacitor to GND to fix the maximum charging time,
see
Chapter 7.8: Maximum charging time on page 22
5
I
T
PRG
6
-
GND
Ground pin.
7
I
SD
Shutdown pin.
When connected to GND enables the device; when floating disables the device.
8
I
TH
Temperature monitor pin.
It must be connected to a resistor divider including an NTC or PTC resistor. The
charge process is disabled if the battery temperature (sensed through the NTC or
PTC) is out of the programmable temperature window see
Chapter 8.1: NTC
thermistor on page 25
.
9
I
V
OPRG
Output voltage selection pin.
If is it floating, V
OUT
= 4.1V. If is it connected to GND, V
OUT
= 4.2V.
Output voltage sense pin.
It senses the battery voltage to control the voltage regulation loop.
10
I
V
OSNS
11
O
V
OUT
V
REF
Output pin. (connected to the battery)
12
O
External reference voltage pin.(reference voltage is 1.8V±2%)
13
I/O
I
END
Charge termination pin.
A resistor connected from this pin to GND fixes the charge termination current
threshold I
ENDTH
: if I < I
ENDTH
, the charger behaves according to the V
PRE
status
(see
Chapter 7.5: End-of-charge current on page 20
). The voltage across the
resistor is proportional to the current delivered to the battery (Gas Gauge
function).
14
I
V
PRE
Multifunction pin.
A resistor connected to GND allows the user to adjust the pre-charge voltage
threshold V
PRETH
.
– If the pin is floating, V
PRETH
= 2.8V. If the voltage on V
PRE
pin is lower than
0.8V, V
PRETH
= 2.8V and the charge is not automatically terminated when I <
I
ENDTH
.
– If the voltage on V
PRE
goes lower than 0.5V (edge sensitive), the maximum
charging time is reset.
15
I
I
PRG
Charge current program pin.
A resistor connected from this pin to GND, fixes the fast charge current value
(I
CHG
), with an accuracy of 7%.
Pre-charge current program pin.
If the pin is floating I
PRETH
is equal to 10% of I
CHG
. If I
PRETH
has to be
programmed at a different value, the pin has to be connected to GND or V
REF,
through a resistor see
Chapter 7.2: Pre-charge current on page 18
.
16
I
I
PRE
相關(guān)PDF資料
PDF描述
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L6925013TR HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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L6924U013TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer
L6924UTR 功能描述:電池管理 Battery Charger USB Compatible 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
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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