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參數(shù)資料
| 型號(hào)： | L6728AHTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO10 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, VFDFPN-10 |
| 文件頁數(shù)： | 29/33頁 |
| 文件大?。?/td> | 1033K |
| 代理商： | L6728AHTR |
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L6728AH
Pins description and connection diagrams
Doc ID 15726 Rev 1
5/33
2
Pins description and connection diagrams
Figure 3.
Pins connection (top view)
2.1
Pin descriptions
1
2
3
4
VCC
COMP / DIS
FB
PGOOD
GND
PHASE
BOOT
9
6
7
8
L6728A
UGATE
LGATE / OC
VSEN
5
10
L6728AH
Table 2.
Pin description
Pin #
Name
Function
1BOOT
HS driver supply.
Connect through a capacitor (100 nF) to the floating node (LS-Drain) pin and provide
necessary bootstrap diode from VCC.
2
PHASE
HS driver return path, current-reading and adaptive-dead-time monitor. Connect to the LS
drain to sense RDS(on) drop to measure the output current. This pin is also used by the
adaptive-dead-time control circuitry to monitor when HS MOSFET is OFF.
3
UGATE
HS driver output. Connect directly to HS MOSFET gate.
4
LGATE / OC
LGATE. LS driver output. Connect directly to LS MOSFET gate.
OC over-current threshold set. During a short period of time following VCC rising over UVLO
threshold, a 10
μA current is sourced from this pin. Connect to GND with an R
OCSET resistor
greater than 5 k
Ω to program OC Threshold. The resulting voltage at this pin is sampled and
held internally as the OC set point. Maximum programmable OC threshold is 0.55 V. A voltage
greater than 0.6 V activates an internal clamp and causes OC threshold to be set at the
maximum value.
5GND
All internal references, logic and drivers are connected to this pin.
Connect to the PCB ground plane.
6VCC
Device and drivers power supply.
Operative range from 5 V to 12 V. Filter with at least 1
μF MLCC to GND.
7
COMP / DIS
COMP. Error amplifier output. Connect with an RF - CF // CP to FB to compensate the device
control loop.
DIS. The device can be disabled by pushing this pin lower than 0.75 V (typ). Setting free the
pin, the device enables again.
8FB
Error amplifier inverting input.
Connect with a resistor RFB to the output regulated voltage. Output resistor divider may be
used to regulate voltages higher than the reference.
9
VSEN
Regulated voltage sense pin for OVP and UVP protections and PGOOD. Connect to the
output regulated voltage, or to the output resistor divider if the regulated voltage is higher than
the reference.
10
PGOOD
Open drain output set free after SS has finished and pulled low when VSEN is outside the
relative window. Pull up to a voltage equal or lower than VCC. If not used it can be left floating.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6728ATR | 功能描述:電壓模式 PWM 控制器 HIGH FREQ SINGLE PHASE PWM CNTRL 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 |
| L6728D | 功能描述:電流型 PWM 控制器 SNGL PHASE PWM CONTROLLER RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| L6728DTR | 功能描述:電流型 PWM 控制器 Single-Phase PWM 5V to 12V Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| L6728H | 功能描述:電壓模式 PWM 控制器 Sgl Output 300 KHz DFN-10 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 |
| L6728HTR | 功能描述:電流型 PWM 控制器 SINGLE PHASE PWM CNTRL PWR GOOD RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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