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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)： | 14/25頁 |
| 文件大?。?/td> | 205K |
| 代理商： | AN8017SA |
AN8017SA
Voltage Regulators
14
I
Application Notes (continued)
[4] Function descriptions
1. Reference voltage block
This block is composed of the band gap circuit, and outputs the temperature compensated 1.19 V reference
voltage. The reference voltage is stabilized when the supply voltage is 1.8 V or more. The reference voltage is also
used as the reference voltage for the error amplifier 1 block and the error amplifier 2 block.
2. Triangular wave oscillation block
The sawthooth-waveform-like triangular wave
having a peak of approximately 0.7 V and a trough of
approximately 0.2 V can be generated by connecting
the timing capacitor and resistor to the OSC terminal
(pin 1). The oscillation frequency can be freely set by
the value of C
T
and R
T
to be connected externally. The
usable oscillation frequency is from 20 kHz to the
maximum 1 MHz. The triangular wave is connected
with the inverting input of PWM comparator for
channel 1 side and the noninverting input of PWM
comparator for channel 2 side within the IC inside.
And refer to the experimentally determined graph of
the frequency characteristics provided in the main
characteristics section.
3. Error amplifier 1 block
The output voltage of DC-DC converter is de-
tected by the NPN-transistor-input type error ampli-
fier and the amplified signal is input to the PWM
comparator. The internal reference voltage 1.19 V is
given to the noninverting input.
Also, it is possible to perform the gain setting and
the phase compensation arbitrarily by connecting a
resistor and a capacitor from the FB1 terminal (pin 4)
to GND in series.
The output voltage V
OUT1
can be set by making
connection as shown in figure 2.
4. Error amplifier 2 block
The output voltage of DC-DC converter is de-
tected by the NPN-transistor-input type error-ampli-
fier and the amplified signal is input to the PWM
comparator. The internal reference voltage 1.19 V is
given to the noninverting input.
Also, it is possible to perform the gain setting and
the phase compensation arbitrarily by connecting a
resistor and a capacitor from the FB2 terminal (pin
13) to GND in series.
The output voltage V
OUT2
can be set by making
connection as shown in figure 3.
Figure 1. Tiangular wave oscillation waveform
t
1
Quick
charging
t
2
T
Discharging
V
OSCH
≈
0.75 V
V
OSCL
≈
0.2 V
FB1
R1
R2
4
1.19 V
To PWM
comparator input
Error amplifier 1
block
IN
1 3
V
OUT1
V
OUT1
=
1.19
×
Figure 2. Connection method of error ampifier 1 block
(Step-up output)
R1
+
R2
R2
FB2
R1
R2
13
1.19 V
To PWM
comparator input
Error amplifier 2
block
IN
+
2 14
V
OUT2
V
OUT2
=
1.19
×
Figure 3. Connection method of error ampifier 2 block
(Step-up output)
R1
+
R2
R2
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相關(guān)代理商/技術(shù)參數(shù) |
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(biāo)準(zhǔn)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(biāo)準(zhǔn)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(biāo)準(zhǔn)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) |
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