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參數(shù)資料
| 型號(hào)： | SS6578CSTR |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | HIGH EFFICIENCY STEP DOWN DC/DC CONTROLLER |
| 中文描述： | 高效率降壓DC / DC控制器 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大?。?/td> | 221K |
| 代理商： | SS6578CSTR |
www.SiliconStandard.com 7 of 11
SS6578
APPLICATION EXAMPLES
(Continued)
V
IN
5~8V
Q1
D3
1N4148
C2
D2
D1
SS32
SS32
*L1
33
μ
H
*R
S
1M
1M
R4
C3
C1
100
μ
F
C4
10
μ
F
*:Sumida MPP Core
V
BATT
+
330
μ
F
35V
B
1K
+
+
CS+
CS-
DRI
DUTY
FB
GND
VIN
R
DUTY
SS6578
PEAK
VBT
DIS
VTS
VCC
ADJ
SEL3
TMR
1
2
3
4
5
6
7
8
MODE
9
SEL2
10
SEL1
11
GND
12
LED1
13
LED2
14
ICON
15
DSW
16
U2
SS6781
R8
240K
R9
100K
BAT1
R10
100K
+
C9
4.7
μ
F
C7
0.1
μ
F
C10
47nF
R15
680
R3
510
R2
20/5W
SW1
PB SW
R12
100K
R16
680
R17
680
R14
200K
C8
0.
1
μ
F
+
100
μ
F
C11
RX
100K
C6
0.1
μ
F
R11
240K
RY
100K
R13
470K
Q2
MMBT2222A
LED2
GREEN
LED3
RED
LED1
YELLOW
Q3
9014
T
+
+
78L05
U3
VIN
VOUT
GND
C12
1
μ
F
C13
10
μ
F
U1
R1
R7
**
SHDN
R6
V
IN
>15V, R7=15
V
IN
≤
15V, R7=0
0.1
μ
F
NOTE:
R
S
=0.1
, charge current =0.5A
±
10%, V
IN
>V
BATT
+3.5V
R
S
=0.05
, charge current =1A
±
10%, V
IN
>V
BATT
+4V
R
S
=0.033
, charge current =1.5A
±
10%, V
IN
>V
BATT
+4.5V
Efficiency>90%, measured at CS- node
3~5 NiMH/NiCd Cells
Fig. 9 Battery Charger Circuit with High-Side Current-Sensing Constant Current Source
Rev.2.0
2
4
/06/200
4
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