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參數(shù)資料
| 型號： | sp6121 |
| 英文描述： | Low Voltage, 8 Pin, Synchronous Buck Controller(低壓，8引腳，同步補償控制器) |
| 中文描述： | 低電壓，8針，同步降壓控制器（低壓，8引腳，同步補償控制器） |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 51K |
| 代理商： | SP6121 |
rev. 4/12/01
SP6661 Evaluation Board Manual
2
Copyright 2001 Sipex Corporation
BOARD LAYOUT
The
SP6661 Evaluation Board
has been
designed to easily and conveniently provide
access to all Inputs and Outputs of the
SP6661 device under test. Position the
board with the silkscreen lettering upright
(also see the drawing on the front page of
this manual) and you will see two circuits –
the Doubler Circuit on top, and the Inverter
Circuit below. Also, note the Doubler Circuit
is followed by an LDO Circuit, producing a
5V regulated output from a 3V input to the
Doubler. The Input and Output connections
are made with raised female pin receptacles
which can accommodate easy-hook con-
nection leads for power and meter connec-
tions, as well as scope probe hooks and
grounds for waveform measurements.
USING THE EVALUATION BOARD
Connect the
SP6661 Evaluation Board
Doubler Circuit or Inverter Circuit to a posi-
tive power supply for V
IN
. It is good practice
to not switch power on until power connec-
tions are made to the evaluation board.
Evaluating Doubler Circuit
V
IN
— U1-3 — Connect to external supply
V
IN
= +2.5 to +5.0V.
GND — U1-5 — Connect to external supply
GND.
CAP+ — U1-2 — Use to monitor Charge
Pump Frequency (1/2 OSC pin frequency).
V
OUT
— U1-8 — Connect to Load, Meter or
Scope. V
OUT
= +5.0 to +10.0V.
GND — U1-5 — Connect to Load, Meter or
Scope GND.
FC — U1-1 — Connect to OPEN for Low
Frequency, to V
OUT
for High Frequency.
SP6661 EVALUATION BOARD
Evaluating Doubler Circuit with 5V LDO
Regulator
Same connections as Doubler above, but
with additional LDO outputs:
+5 — U2-5 — Connect to Load, Meter or
Scope. V
OUT
= +5.0V.
GND — U2-2 — Connect to Load, Meter or
Scope GND.
Evaluating Inverter Circuit
V
IN
— U3-8 — Connect to external supply
V
IN
= +1.5 to +5.0V.
GND — U3-3 — Connect to external supply
GND.
CAP+ — U3-2 — Use to monitor Charge
Pump Frequency (1/2 OSC pin frequency).
V
OUT
— U3-5 — Connect to Load, Meter or
Scope. V
OUT
= -1.5 to –5.0V.
GND — U3-3 — Connect to Load, Meter or
Scope GND.
FC — U3-1 — Connect to OPEN for Low
Frequency, to V
OUT
for High Frequency.
Evaluating Oscillator Performance with
Inverter or Doubler Circuit
To accurately measure the internal oscilla-
tor frequency at pin 7 is extremely difficult,
since any connection to this pin may induce
capacitance which will change the frequency
(1/RoscCosc). It is for this reason that the
SP6661 Evaluation Board has only a small
pad connection to it and not a pin receptacle.
Alternatively, you can measure the charge
pump frequency at the CAP+ pin, which
equals _ the OSC pin frequency.
To run the Inverter or Doubler Circuit at other
frequencies, the OSC pin can be driven with
an external oscillator with a square wave of
0 to V
IN
volts. Tests have shown that typi-
cally the circuits can perform up to oscillator
frequencies of 900kHz.
相關PDF資料 |
PDF描述 |
|---|---|
| SP6680EB | Evaluation Board Manual |
| SP6680EU | High Efficiency Buck/Boost Charge Pump Regulator |
| SP6680TR | High Efficiency Buck/Boost Charge Pump Regulator |
| SP6680 | High Efficiency Charge Pump Regulator(高效電荷泵穩(wěn)壓器) |
| SP6681 | High Efficiency Boost Charge Pump Regulator |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP612-10 | 制造商:Delphi Corporation 功能描述:TORSION SPRING |
| SP6121CN | 功能描述:開關變換器、穩(wěn)壓器與控制器 Low Voltage, 8 Pin 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6121CN/TR | 功能描述:開關變換器、穩(wěn)壓器與控制器 Low Voltage, 8 Pin 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| SP6121CN-L | 功能描述:電壓模式 PWM 控制器 Low Voltage, 8 Pin Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 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 |
| SP6121CN-L/TR | 功能描述:電壓模式 PWM 控制器 Low Voltage, 8 Pin Synchronous, Cntrllr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 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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