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AN8086SのメーカーはPanasonic Semiconductorです、この部品の機能は「Low Voltage Operation IC for DC-DC Converter」です。 |
部品番号 | AN8086S |
| |
部品説明 | Low Voltage Operation IC for DC-DC Converter | ||
メーカ | Panasonic Semiconductor | ||
ロゴ | |||
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ICs for CD/CD-ROM Player
AN8086S
Low Voltage Operation IC for DC-DC Converter
s Overview
The AN8086S is an IC for controlling a DC-DC converter
suitable for the switching power supply of various
portable equipment. It can operate with input voltage
1.1V or more. The AN8086S is based on AN8083S with
the output voltage in the secondary side changed to 3.6V.
s Features
• Operatable with low voltage input (PVCC>1.1V)
• Decreased voltage detection circuit built-in
• Short-circuit protection feature built-in
• Provided with reset output
• Synchronizable with outside clock
• Low consumption current in stand-by mode
1 16
2 15
3 14
4 13
5 12
6 11
7 10
89
0.3
4.2±0.3
6.5±0.3
Unit : mm
16-lead SOP package (SOP016-P-0225A)
s Block Diagram
RESET VCC EMP
15 16 13
VSEN
14
2.2V
VREF
+– +–
4.8V
+
–
2.7V→ 2.5V
Starter SW
Early Value Set.
2.0V
+
–
–
+
30kΩ
0.725V
–
+
+
63kΩ
START CT
10 7
VREF
12
Starter
0.85V
0.25V
Triangular
Wave
Power
Off
Switching
Circuit
9 CLK
8 PVCC
11 POWER
6 GND
1 23
IN FB SPRO
4
DED
5
OUT
1 Page ICs for CD/CD-ROM Player
AN8086S
s Pin Description
Pin No. Symbol
1 IN
2 FB
• Input pin for error amplifier
• Threshold voltage ; 0.7V
• Output pin for error amplifier
Description
• Short-circuit protection input pin
3 SPRO
If output of error amplifier does not become “L” when t = CVth/ISPRO output of IC is not
switched.
ISPRO =25µA
Vth = 0.9V
4
DED
• Dead time control input
Maximum duty ratio set to 85%.
5
OUT
• Switching output pin
Output current ; IO=20mA (max.)
6
GND
• GND pin
• Triangular oscillating capacitor pin
7 CT
T1 T2
T1 = I
CV
(Discharged)
V
f=
1
T1 + T2
T2 =
I
CV
(Charged)
I (Discharged) =52µA
I (Charged) =30µA
V = 0.58V
In normal operation
8
PVCC
• DC voltage input pin
Operates with 1.1V or more.
• Clock input
· It is used to synchronize triangular oscillation with clock input and operates at rise edge of
9 CLK
clock.
· The threshold level is TTL level.
· It is open when not used.
• Start pin
10 START
· Starts switching of starter (start at “L”)
· Threshold voltage, PVCC – 0.9V
11
POWER
• Power ON/OFF pin
Output ON/OFF switching pin (Output is off at “L.”)
• Reference voltage pin
· 1.25V output
12 VREF
· Charged and discharged current of triangular oscillation is determined by external R.
I (Charged) =
VREF – 0.7
RREF +1kΩ
I (Discharged)=1.40 × I (Charged)
13
EMP
• Decreased voltage detection output pin
“H” when detected by open collector output form
14
VSEN
• Decreased voltage detection input pin
· Threshold voltage ; 2.2V
• Reset output pin
15 Reset
· “H” when VCC becomes VO × 0.9V or more
· Open collector output form
16
VCC
• DC voltage input pin
Operates with 3.6V or more.
3Pages | |||
ページ | 合計 : 3 ページ | ||
|
PDF ダウンロード | [ AN8086S データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
AN8086 | Low Voltage Operation IC for DC-DC Converter | Panasonic Semiconductor |
AN8086S | Low Voltage Operation IC for DC-DC Converter | Panasonic Semiconductor |