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AT1397AN 参数 Datasheet PDF下载

AT1397AN图片预览
型号: AT1397AN
PDF下载: 下载PDF文件 查看货源
内容描述: 6通道DC-DC转换器,用于DSC [6-Channel DC-DC Converter for DSC]
分类和应用: 转换器DC-DC转换器
文件页数/大小: 21 页 / 685 K
品牌: AIMTRON [ AIMTRON TECHNOLOGY ]
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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
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.
Applications
DSC Power Supply
Pin Assignment
AT1397AN
36
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
10
11
12
35
34
33
32
31
30
29
28
27
26
25
24
23
22
AT1397BN
CH1
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
CH4
Seletable Voltage Mode
Step-Up/Down/Inverting
CH5
Voltage Mode PWM
Step-Up
CH6
Voltage Mode Step-Up
CH1
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
CH4
Seletable Voltage Mode
Step-Up/Down/Inverting
CH5
Voltage Mode PWM
LED Driver
CH6
Voltage Mode Step-Up
AT1397
21
20
19
18
17
16
15
14
13
Ordering Information
Part Number
Package
QFN48,Green
AT1397 N
A:1397AN
B:1397BN
Date Code
*
For more marking information, contact our sales representative directly.
Marking
Aimtron reserves the right without notice to change this circuitry and specifications.
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