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參數(shù)資料
| 型號(hào)： | SP61346 |
| 英文描述： | Dual Supply Synchronous Buck Controller |
| 中文描述： | 雙電源同步降壓控制器 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 188K |
| 代理商： | SP61346 |
4
Date: 2/16/06
SP6134 Dual Supply, Synchronous Buck Controller Copyright 2006 Sipex Corporation
PIN # PIN NAME DESCRIPTION
1
V
CC
Bias Supply Input. Connect to external 5V supply. Used to power internal circuits and
low side gate driver.
High current driver output for the low side NFET switch. It is always low if GH is high or
during a fault. Resistor pull down ensure low state at low voltage.
Ground Pin. The control circuitry of the IC and lower power driver are referenced to this
pin. Return separately from other ground traces to the (-) terminal of C
OUT
.
Feedback Voltage and Short Circuit Detection pin. It is the inverting input of the Error
Amplifier and serves as the output voltage feedback point for the Buck Converter. The
output voltage is sensed and can be adjusted through an external resistor divider.
Whenever V
drops 0.25V below the positive reference, a short circuit fault is detected
and the IC enters hiccup mode.
Output of the Error Amplifier. It is internally connected to the non-inverting input of the
PWM comparator. An optimal filter combination is chosen and connected to this pin and
either ground or V
FB
to stabilize the voltage mode loop.
UVLO input for V
voltage. Connect a resistor divider between V
IN
and UVIN to set
minimum operating voltage.
Soft Start. Connect an external capacitor between SS and GND to set the soft start rate
based on the 10
μ
A source current. The SS pin is held low via a 1mA (min) current during
all fault conditions.
Lower supply rail for the GH high-side gate driver. Connect this pin to the switching node
at the junction between the two external power MOSFET transistors.
High current driver output for the high side NFET switch. It is always low if GL is high or
during a fault. Resistor pull down ensure low state at low voltage.
High side driver supply pin. Connect BST to the external boost diode and capacitor as
shown in the Typical Application Circuit on page 1. High side driver is connected between
BST pin and SWN pin.
2
GL
3
GND
4
V
FB
5
COMP
6
UVIN
7
SS
8
SWN
9
GH
10
BST
PIN DESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP6134HEU | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6134H | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6134HCU | High Voltage, 600 KHz Synchronous PWM Controller |
| SP6136 | Evaluation Board Manual |
| SP6136_06 | Evaluation Board Manual |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP6134CU | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller |
| SP6134CU/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Dual Supply Synchronous Buck Controller |
| SP6134CU-L | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Dual-Supply Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6134CU-L/TR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Dual-Supply Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6134EB | 功能描述:電壓模式 PWM 控制器 Dual Supply Sync Buck Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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