- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375327 > AN8013SH (PANASONIC CORP) Single-channel step-up or step-down DC-DC converter control IC PDF資料下載
參數(shù)資料
| 型號： | AN8013SH |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single-channel step-up or step-down DC-DC converter control IC |
| 中文描述： | 0.1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | SSOP-10 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 125K |
| 代理商： | AN8013SH |
Voltage Regulators
AN8013SH
9
I
Application Notes (continued)
[2] Function descriptions (continued)
6. PWM comparator
The PWM comparator controls the output pulse on-period according to the input voltage. The output transistor
is turned on during periods when the level of the CT pin (pin 3) triangular wave is lower than both of the error
amplifier output (pin 6) and the DTC pin (pin 5) voltage.
The dead-time is set by adding a resistor between the DTC pin and ground.
Additionally, the AN8013SH can provide soft start operation in which the output pulse on-period is gradually
lengthened according to an RC time constant when power is first applied by adding a capacitor in parallel with the
resistor R
DTC
.
7. Overcurrent protection block
Destruction of the main switching device, the flywheel diode, and the choke coil, which are easily damaged
by overcurrents, is prevented by limiting the maximum current that flows in the switching device. This is imple-
mented using the fact that power supply output overcurrents are proportional to the current flowing in the main
switching device (a bipolar transistor).
The AN8013SH detects the current by connecting a resistor with a low resistance between the main switching
device and the V
CC
pin and monitoring the voltage drop across this resistor at the CLM pin (pin 1). When the main
switching device (a bipolar transistor) is on and the CLM pin voltage reaches V
CC
minus 100 mV, which is the
overcurrent detection threshold voltage, the AN8013SH shuts off the output transistor, thus controlling the main
switching device so that currents in excess of the limit cannot occur. While this control operation is repeated at
each period, once an overcurrent is detected the output transistor is turned off for the remainder of that period and
is not turned on again until the next period. This type of overcurrent protection is called pulse-by-pulse overcurrent
protection.
8. Output block
The output drive transistor is of open-collector type output in which transistors are darlington-connected with
a grounded common emitter. The breakdown voltage of collector output terminal (pin 5) is 34 V and it is possible
to obtain up to 100 mA output current.
Output transistor collector
waveform (Out)
Triangle wave (CT)
Figure 2. Pulse-by-pulse overcurrent protection operating waveforms
Error amplifier output (FB)
Latch circuit reset signal
Overcurrent protection input
(CLM)
Latch circuit set signal
Overcurrent detection
Latch set
Output off
Latch reset
On at the next period
T
DLY
: Delay time
1.4 V
0.4 V
High
Low
V
CC
V
CC
100 mV
High
Low
High
Low
2
4
1
3
5
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN8016 | Single-channel 1.8-volt step-up DC-DC converter control IC |
| AN8016NSH | Single-channel 1.8-volt step-up DC-DC converter control IC |
| AN8017SA | 1.8-volt 2-channel step-up DC-DC converter control IC |
| AN8021SB | AC-DC switching power supply control IC |
| AN8021NS | External excitation flyback AC-DC switching power supply control IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(biāo)準(zhǔn)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 |
| AN8013SH-E1V | 功能描述:IC REG BUCK BST ADJ 0.1A 10SSOP 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(biāo)準(zhǔn)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 |
| AN8014 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Step-down, step-up, or inverting DC-DC converter control IC |
| AN8014S | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Step-down, step-up, or inverting DC-DC converter control IC |
| AN8014S-E1 | 功能描述:IC REG CTRLR BST INV PWM SO16 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) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。