參數(shù)資料
型號: AN8017SA
廠商: PANASONIC CORP
元件分類: 穩(wěn)壓器
英文描述: 1.8-volt 2-channel step-up DC-DC converter control IC
中文描述: 0.08 A DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-16
文件頁數(shù): 20/25頁
文件大?。?/td> 205K
代理商: AN8017SA
AN8017SA
Voltage Regulators
20
I
Application Notes (continued)
[8] Setting of Off-terminal connection resistor
The start circuit starts its operation when Q1 is turned on. In an organization in which Q1 turns off/on when Q2
turns on/off in figure 9, the input voltage V
IN
at which the start circuit operates is obtained by the equation:
V
IN
=
V
BEQ1
×
(R
OFF
+
R1
+
R2) / R2
Therefore, R
OFF
can be set by:
R
OFF
=
R2 · V
IN
/ V
BEQ1
R1
R2
Also, in case of limiting the Off terminal current by R
OFF
,
set it by the above equation. However, take the values as:
V
BEQ1
=
0.7 V (T
=
25
°
C)
V
BEQ1
fluctuation with temperature:
2 mV/
°
C
Temperature coefficient of R1 and R2:
+
6 000 PPM/
°
C
[9] Sequential operation
It is possible to turn on/off the output of DC-DC converter individually by turning on/off Q1 and Q2 as shown in
figure 10. However, pay particular attention to the current flowing into the V
REF
terminal when Q2 is turned off since
sink capability of V
REF
terminal is approximately 100
μ
A.
R
OFF
15
Off
R1
30 k
R2
60 k
Q1
Start circuit
Figure 9. Off terminal peripheral circuit
Q2
Figure 10
V
1
V
2
Control block
0.9 V
0.9 V
Unlatch2
Q1
Q2
1.19 V
4
F
5
D
6
R
7
O
8
G
V
C
1
1
1
1
1
9
O
F
R
D
V
R
0.2 V
Unlatch1
0.1
μ
F
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參數(shù)描述
AN8017SA-E1 功能描述:IC REG CTRLR BST PWM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF)
AN8017SA-E1V 功能描述:IC REG CTRLR BST PWM SSOP16 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF)
AN8018 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC
AN8018SA 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC
AN8018SA-E1 功能描述:IC REG CTRLR BST INV PWM 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR)