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參數(shù)資料
| 型號： | AN8015SH |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Single-channel step-down, step-up, or inverting use 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)： | 12/14頁 |
| 文件大?。?/td> | 131K |
| 代理商： | AN8015SH |
12
AN8015SH
Voltage Regulators
I
Application Notes (continued)
[5] Time constant setting method for short-circuit protection circuit with joint-use of soft start/timer latch type
(continued)
When the external capacitor C
S
has been charged up to approximately 1.83 V, it sets the latch circuit, cuts off the
output drive transistor by enabling the low input voltage malfunction prevention circuit, and sets the dead-time at 100%.
The low input voltage malfunction prevention circuit is once enabled, the S.C.P. terminal voltage is discharged to
approximately 30 mV but the latch circuit is not reset unless the power is turned off.
The S.C.P. terminal voltage is inputted to the PWM comparator, and the soft start is actuated when the power turns
on. However, since at the beginning of power on, the error amplifier output is high level, and V
PE
of S.C.P. terminal
voltage is released and charging begins; the external capacitor should be set so that the output voltage of DC-DC
convertor starts to rise before the latching circuit is set. The charging equation is as same as the above. The soft start
time t
SS
until the input standby voltage V
STBY
becomes 1.25 V is given in the following equations:
1.25 V
=
0.03 V
+
I
CHG
×
t
SS
C
S
t
SS
=
1.22
×
C
S
I
CHG
[s]
S.C.P. comp.
Q1
Q2
Error amp.
1.83 V
1.25 V
FB
8
9
10
IN
+
IN
S
3
I
CHG
V
REF
C
S
S R
Latch
PWM comparator input
R
U.V.L.O.
Figure 6. Short-circuit protection circuit
Clamp
circuit
Output cut-off
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN8015SH-E1 | 功能描述:IC REG CTRLR BST INV PWM 10-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) |
| AN8015SH-E1V | 功能描述:IC REG CTRLR BST INV PWM SSOP10 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) |
| AN8016 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Single-channel 1.8-volt step-up DC-DC converter control IC |
| AN8016NSH | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Single-channel 1.8-volt step-up DC-DC converter control IC |
| AN8016NSHAVF | 功能描述:IC REG CTRLR BST PWM SSOP10 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:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無 升壓:是 回掃:是 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:8-TSSOP（0.173"，4.40mm 寬） 包裝:帶卷 (TR) |
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