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參數(shù)資料
| 型號： | LV5604T |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1300 kHz SWITCHING FREQ-MAX, PQFP64 |
| 封裝： | 7 X 7 MM, TQFP-64 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 150K |
| 代理商： | LV5604T |
LV5604T
No.A0966-10/12
Continued from preceding page.
Pin No.
Pin Name
Description
Equivalent Circuit
46
VCC
Signal system power supply
2
47
VBIAS1
VBIAS2
Power system power supply
(Output stage)
24
GND_S
Signal system GND
58
54
GND_P1 (VS1)
GND_P2 (VS2)
Output stage GND
(Output stage GND)
50
63
(NC)
Use prohibited
(Not connected pins)
Notes
(1) Channel 8 step-up/step-down selection function
The channel 8 step-up or step-down converter selection is made by the SEL_8CH pin connection.
Step-up/step-down is selected by SEL_CH8, but this selection cannot be switched during use, and is fixed to either
step-up or step-down in the design stage. In addition, unlike other channels, channel 8 is not connected internally to a
pull-up/pull-down resistor, so an external resistor must be connected instead.
(Mode selection using SEL_CH8)
Selected mode
SEL_CH8 connection
OUT8 resistor connection
Step-down (DOWN converter)
VBIAS2
Connect to VBIAS2 via a resistor (between the PchTr gate and VBIAS2)
Step-up (UP converter)
GND_P2 (VS2)
Connect to GND_P2 (VS2) via a resistor
(between the NchTr gate and GND_P2 (VS2))
(2) Soft start time setting method
The soft start time is set with the capacitor connected between CSOFT* and GND_S.
This IC has an independent soft start function for each channel, so a capacitor must be connected for each channel to
set the soft start (time).
(Description of soft start operation)
(Outline of soft start pin)
(3) Setting the oscillation frequency
The internal oscillation frequency is set by the resistor connected to the RT pin and the capacitor connected to the CT
pin. The waveform generated on CT is a triangular wave with the charging/discharging waveform determined by RT
and CT.
fOSC =
1
CT × RT
[Hz]
The actual internal oscillation frequency deviates from the calculated value due to overshoot, undershoot and other
factors, so the frequency should be confirmed in an actual set.
CSOFT* [V]
CSOFT* voltage
VREG
(Internal constant voltage)
T [s]
VB (0.515 [V])
200k
CSOFT*
GND_S
VB ( = 0.515 [V] (TYP))
CSOFT pin
charging starts
The output voltage reaches the
set voltage
(Output voltage constant)
Soft start time (Tsoft [s])
VCC
VBIAS*
GND_S
GND_P*(VS*)
(NC)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV5604T_09 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Eight-Channel Switching Regulator Controller |
| LV5604TA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Bi-CMOS LSI Eight-Channel Switching Regulator Controller |
| LV5604TA-NH | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:ON Semiconductor 輸入電壓: 開關(guān)頻率: 輸出電壓: 輸出電流: 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格: 封裝 / 箱體: |
| LV5604T-MPB-E | 制造商:ON Semiconductor 功能描述:8 CHANNEL DC-DC CONVERTER - Trays 制造商:ON Semiconductor 功能描述:JTRAY / 8 CHANNEL DC-DC CONTROLLE |
| LV5604T-TLM-E | 制造商:ON Semiconductor 功能描述:8 CHANNEL DC-DC CONVERTER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / 8 CHANNEL DC-DC CONTROLLE |
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