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AT1397A の電気的特性と機能

AT1397AのメーカーはAimtron Technologyです、この部品の機能は「6-Channel DC-DC Converter」です。


製品の詳細 ( Datasheet PDF )

部品番号 AT1397A
部品説明 6-Channel DC-DC Converter
メーカ Aimtron Technology
ロゴ Aimtron Technology ロゴ 




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AT1397A Datasheet, AT1397A PDF,ピン配置, 機能
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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
36 35 34 33 32 31 30 29 28 27 26 25
37 24
38 23
39 22
AT139740 21
41 20
42 19
43 18
44 17
45 16
46 15
47 14
48 13
1 2 3 4 5 6 7 8 9 10 11 12
AT1397AN
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
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
Ordering Information
Part Number
Package
AT1397 N
QFN48,Green
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
1

1 Page





AT1397A pdf, ピン配列
Pin Description
AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
Symbol
SS1
CTL5
CTL6
LX1
CTL1
PGND1
PGND2
CTL2
LX2
CTL3
CTL4
SS2
/SDOK
CSCP
PVCC2
COMP2
FB2
SS3
COMP3
FB3
SS4
COMP4
IN4
IP4
PVCC3
OUT3M
OUT3S
PGND3
OUT4
OUT5
OUT6
PVCC4
GND
FB5H
FB5
COMP5
VBG
SS5
FB6
COMP6
CT
VREG
FB1
COMP1
VCC
PVCC1
SS6
SEL4
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Descript
CH1 Soft-Start Input
CH5 Enable Input
CH6 Enable Input
CH1 Converter Switching Node
CH1 Enable and Chip Enable Input
Power Ground
Power Ground
CH2 Enable Input
CH2 Converter Switching Node
CH3 Enable Input
CH4 Enable Input
CH2 Soft-Start Input
Open-Drain, Active Low, Power Good for CH2
Short Circuit Protection Input
CH2 Converter Input
CH2 Controller Compensation Node
CH2 Converter Feedback Input
CH3 Soft-Start Input
CH3 Compensation Node
CH3 Feedback Input
CH4 Soft-Start Input
CH4 Compensation Node
CH4 Negative Feedback Input
CH4 Positive Feedback Input
CH3 Power Input
CH3 Master Output Driver
CH3 Slave Output Driver
Power Ground
CH4 Output Driver
CH5 Output Driver
CH6 Output Driver
CH4, CH5 and CH6 Power Input
Power Ground
CH5 Controller Over Voltage Protection Input
CH5 Controller Voltage Feedback/Current Feedback
CH5 Compensation Node
Reference Bypass
CH5 Soft-Start Input
CH6 Feedback Input
CH6 Compensation Node
Oscillator Control
Reference Output
CH1 Converter Feedback Input
CH1 Controller Compensation Node
IC Power Input
CH1 Converter Input
CH6 Soft-Start Input
Configures the CH4 as a Step-Up or Step-Down
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
3


3Pages


AT1397A 電子部品, 半導体
AT1397A/B
Preliminary Product Information
6-Channel DC-DC Converter for DSC
LX Leakage Current
ILX1/2 VLX1/2=0~3.6V
- 1 5 µA
Switch On-Resistance
RN N-Channel
RP P-Channel
- 200 250 m
- 250 300 m
P-Channel Current Limit
ILimit2
-
1.0 1.2 1.4
A
N-Channel Turn-off Current
IREV2
-
- 20 -
mA
/SDOK Output Low Voltage VSDOK 0.1mA into /SDOK
- 0.01 0.1
V
/SDOK Leakage current
IL_SDOK CTL2=0V, /SDOK=5.5V
- 0.1 1
µA
CHANNEL 3
Input Voltage Range
Normal Operating Soft-Start
Charge Current
FB3 input Current
FB3 Regulation Voltage
Error Amplifier Voltage Gain
Error Amplifier Frequency
Bandwidth
Error Amplifier Output
Voltage
PVCC3
-
ISS3 VCC =2.5V~5.5V
IFB3 FB3=0.8V
VFB3
Ta=-20°C ~+85°C,
FB3=COMP3
AV DC
BW AV=0dB
VOH
VOL
-
-
2.5 - 5.5
V
0.7 1 1.3 µA
- - 100 nA
0.784 0.8 0.816 V
80 - - dB
- 5 - MHz
- 1.0 -
V
- 10 -
mV
Error Amplifier Output
Source/Sink Current
Isource COMP=0.8V
Isink COMP=0.8V
-1-
- 60 -
mA
µA
Maximum Duty Cycle
Output Source/Sink Current
Output On-Resistor
DMAX FB3=0.7V
- 100 -
Isource
DUTY=90%,OUT=1/2VC
C
-
-130 -80
Isink DUTY=0%,OUT=1/2VCC 65 100 -
ROH OUT=-15mA
- 18 30
ROL OUT=15mA
- 16 25
%
mA
mA
CHANNEL 4, 5, 6
Input Voltage Range
Normal Operating Soft-Start
Charge Current
FB4/5/6 Regulation Voltage
FB5 Regulation Voltage for
LED Driver
PVCC4 CH4, 5, 6
ISS4/5/6 VCC =2.5V~5.5V
VFB4/5/6
VFB5
Ta=-20°C ~+85°C,
FB_=COMP_
Ta=-20°C ~+85°C,
FB5=COMP5
2.5 - 5.5
0.7 1 1.3
0.784 0.8 0.816
V
µA
V
0.19 0.20 0.21 V
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
6

6 Page



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部品番号部品説明メーカ
AT1397A

6-Channel DC-DC Converter

Aimtron Technology
Aimtron Technology
AT1397B

6-Channel DC-DC Converter

Aimtron Technology
Aimtron Technology


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