- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377705 > LT1510CS8 (LINEAR TECHNOLOGY CORP) Constant-Voltage/ Constant-Current Battery Charger PDF資料下載
參數(shù)資料
| 型號： | LT1510CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Constant-Voltage/ Constant-Current Battery Charger |
| 中文描述： | 2 A BATTERY CHARGE CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 339K |
| 代理商： | LT1510CS8 |
13
LT1510/LT1510-5
APPLICATIO
S I
FOR
ATIO
U
Example: V
IN
= 15V, V
BAT
= 8.4V, I
BAT
= 1.2A;
=
(
+
( )
[
( )( )
( )
=
( ) (
( )( )(
=
+
=
=
(
W
U
U
P
mA
mA
mA
W
P
W
BIAS
DRIVER
)( )
+
( )
]
=
=
+
(
)( )
8 4
30
=
+
3 5
15
1 5
8 4
.
8 4
.
15
7 5
0 012 1 2
.
0 17
1 2 8 4
.
1
55 15
)( )
+
15
15 1 2 200
0 13
2
2
.
.
P
kHz
W
P
W
SW
SENSE
)
)( )
=
1 2
.
0 35 8 4
.
10 10
0 28
.
0 04
.
0 32
2
0 18 1 2
.
0 26
.
2
9
.
.
.
.
Total power in the IC is:
0.17 + 0.13 + 0.32+ 0.26 = 0.88W
Temperature rise will be (0.88W)(50
°
C/W) = 44
°
C. This
assumes that the LT1510 is properly heat sunk by con-
necting the four fused ground pins to the expanded traces
and that the PC board has a backside or internal plane for
heat spreading.
The P
DRIVER
term can be reduced by connecting the boost
diode D2 (see Figures 2 and 6 circuits) to a lower system
voltage (lower than V
BAT
) instead of V
BAT
(see Figure 8).
Then,
P
I
V
V
V
30
V
DRIVER
BAT
BAT
X
X
IN
=
(
)(
)( )
( )
+
1
55
For example, V
X
= 3.3V,
P
A
V
V
V
V
W
DRIVER
=
(
)(
)(
)
)
+
(
=
1 2
8 4
3 3
1
3 3
30
55 15
0 045
The average I
VX
required is:
P
V
X
Total board area becomes an important factor when the
area of the board drops below about 20 square inches. The
graph in Figure 9 shows thermal resistance vs board area
for 2-layer and 4-layer boards. Note that 4-layer boards
have significantly lower thermal resistance, but both types
show a rapid increase for reduced board areas. Figure 10
shows actual measured lead temperature for chargers
operating at full current. Battery voltage and input voltage
will affect device power dissipation, so the data sheet
power calculations must be used to extrapolate these
readings to other situations.
Vias should be used to connect board layers together.
Planes under the charger area can be cut away from the
rest of the board and connected with vias to form both a
W
V
mA
DRIVER
=
=
0 045
3 3
14
BOARD AREA (IN
2
)
0
60
55
50
45
40
35
30
25
15
25
1510 F08
5
10
20
30
35
T
°
C
S16, MEASURED FROM AIR AMBIENT
TO DIE USING COPPER LANDS AS
SHOWN ON DATA SHEET
2-LAYER BOARD
4-LAYER BOARD
Figure 9. LT1510 Thermal Resistance
BOOST
SW
SENSE
V
X
I
VX
1510 F07
LT1510
C1
L1
D2
10
μ
F
+
Figure 8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1510IN | Constant-Voltage/ Constant-Current Battery Charger |
| LT1510IS | Constant-Voltage/ Constant-Current Battery Charger |
| LT1510IS8 | Constant-Voltage/ Constant-Current Battery Charger |
| LT1510 | Constant-Voltage/ Constant-Current Battery Charger |
| LT1510C | Constant-Voltage/ Constant-Current Battery Charger |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1510CS8#PBF | 功能描述:IC BATT CHARGER CONST V/I 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學:鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LT1510CS8#TR | 功能描述:IC CHARGER BATT CONST V/I 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:61 系列:- 功能:電源管理 電池化學:鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LT1510CS8#TRPBF | 功能描述:IC BATT CHARGER CONST V/I 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:61 系列:- 功能:電源管理 電池化學:鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LT1510CS8PBF | 制造商:Linear Technology 功能描述:Constant-Current/Voltage Charger 1.5A SO |
| LT1510CSPBF | 制造商:Linear Technology 功能描述:LT1510CSPBF |
發(fā)布緊急采購，3分鐘左右您將得到回復。