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參數資料
| 型號： | AT1397BN |
| 廠商： | Aimtron Technology Corp. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 6-Channel DC-DC Converter for DSC |
| 中文描述： | 6聲道的DC - DC轉換器的數碼相機 |
| 文件頁數： | 1/21頁 |
| 文件大?。?/td> | 696K |
| 代理商： | AT1397BN |
AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
Features
95% Efficient possible DC/DC Converter
Bulit-in LED Driver and Open LED
Overvoltage Protection
Transformerless Inverting Controller for CCD
Bias
2 Channel Built-in MOSFET Current- Mode
PWM and 4 Channel Extra PWM Controllers
(CH-3 Synchronous Output)
Up to 1MHz Operating Frequency
Shutdown Current <1uA
Built-in Soft-Start Function
Built-in Short-Circuit Protection Function
QFN48 Package
Applications
DSC Power Supply
7F, No.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW:
http://www.aimtron.com.tw
1/10/2006
REV:1.0
Email:
service@aimtron.com.tw
1
General Description
The AT1397A/B provide a complete power
supply solution for digital cameras. They improve
performance, component count, and size compared
to other multi-channel controllers in 1-cell Li-Ion
designs. On-chip MOSFETs provide up to 92~95%
efficiency for critical power supplies, while
additional channels operate with external FETs for
optimum design flexibility. All channels DC/DC
operate at one fixed frequency settable from
100KHz to 1MHz to optimize size, cost, and
efficiency.
Pin Assignment
AT1397
11
10
9
8
7
6
5
4
3
2
1
34
35
36
37
38
39
40
41
42
43
44
21
20
19
18
17
16
15
14
13
12
22
23
24
25
26
27
28
29
30
31
32
33
45
46
47
48
CH1
Synchronous Rectified
Current Mode Step-Down
On-Chip MOSFET
CH1
Synchronous Rectified
Current Mode Step-Down
On-Chip MOSFET
CH2
Synchronous Rectified
Current Mode Step-Down
On-Chip MOSFET
CH2
Synchronous Rectified
Current Mode Step-Down
On-Chip MOSFET
CH3
Synchronous Rectified
Voltage Mode Step-Down
CH3
Synchronous Rectified
Voltage Mode Step-Down
CH4
Seletable Voltage Mode
Step-Up/Down/Inverting
CH4
Seletable Voltage Mode
Step-Up/Down/Inverting
CH5
Voltage Mode PWM
LED Driver
CH5
Voltage Mode PWM
Step-Up
CH6
Voltage Mode Step-Up
CH6
Voltage Mode Step-Up
AT1397AN
AT1397BN
Ordering Information
Part Number
AT1397 N
：
A:1397AN B:1397BN
：
Date Code
*
For more marking information, contact our sales representative directly.
Aimtron reserves the right without notice to change this circuitry and specifications.
Package
QFN48,Green
Marking
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