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參數(shù)資料
| 型號： | AN8011S |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2-channel step-down, step-up, or inverting use DC-DC converter control IC |
| 中文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.225 INCH, PLASTIC, SOP-16 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 161K |
| 代理商： | AN8011S |
12
AN8011S
Voltage Regulators
I
Application Notes (continued)
[3] The time constant setting method for timer latch type short-circuit protection circuit (continued)
When the power supply is turned on, the output is considered to be short-circuited state, so that the error amplifier
output becomes high-level, then SW1 becomes on state and the charging starts. It is necessary to set the external
capacitor so as to start up the DC-DC converter output voltage before setting the latch circuit in the later stage.
Especially, pay attention to the delay of the start-up time when applying the soft-start.
[4] Explanation of unlatch protection circuit operation
Figure 4 shows the block diagram of the unlatch protection circuit. It is possible to suppress FB terminal, the error
amplifier output terminal of the channel, to low by setting DTC terminal to 0.12 V or less through external signal.
Consequently, by controlling the DTC terminal voltage, it is possible to operate only one channel, or to start and stop
each channel in any required sequence.
Cut output off
V
REF
5
12
4
I
CHG
80
μ
A typ.
Latch comp.
FB2
FB1
SW1
Latch
C
S
S
Latch
R
Figure 3. Short-circuit protection circuit
R
U.V.L.O.
1.25 V
typ.
30 k
typ.
10 k
typ.
4.2 k
typ.
1.85 V
13
14
12
11
Unlatch protection
comp.1
Unlatch protection
comp.2
Error amp.1
IN
1
IN
+
FB1
I
DTC1
To PW1
4
5
6
Error amp.2
IN
2
DTC2
FB2
I
DTC2
0.12 V typ.
0.12 V typ.
To PW2
Figure 4. Unlatch protection circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN8011S-E1V | 功能描述:IC REG BUCK BST INV 2.5V DL SO16 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色產(chǎn)品:BD91x Series Step-Down Regulators 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:兩者兼有 輸出數(shù):2 輸出電壓:3.3V，0.8 V ~ 2.5 V 輸入電壓:4.5 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關(guān):1MHz 電流 - 輸出:1.5A 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:VQFN020V4040 產(chǎn)品目錄頁面:1373 (CN2011-ZH PDF) 其它名稱:BD9152MUV-E2TR |
| AN8013 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| AN8013D1 | 制造商:AN# - MILITARY 功能描述: |
| AN8013SH | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Single-channel step-up or step-down DC-DC converter control IC |
| AN8013SH-E1 | 功能描述:IC REG BUCK BST ADJ 0.1A 10SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 產(chǎn)品培訓(xùn)模塊:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色產(chǎn)品:BD91x Series Step-Down Regulators 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:兩者兼有 輸出數(shù):2 輸出電壓:3.3V，0.8 V ~ 2.5 V 輸入電壓:4.5 V ~ 5.5 V PWM 型:電流模式 頻率 - 開關(guān):1MHz 電流 - 輸出:1.5A 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:VQFN020V4040 產(chǎn)品目錄頁面:1373 (CN2011-ZH PDF) 其它名稱:BD9152MUV-E2TR |
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