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参数资料
| 型号： | L6788A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 电源管理 |
| 英文描述： | 3-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40 |
| 封装： | 6 X 6 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFN-40 |
| 文件页数： | 17/18页 |
| 文件大小： | 330K |
| 代理商： | L6788A |
Pins description and connection diagram
L6788A
8/18
Doc ID 15341 Rev 2
26
MODE
Phase Number selection pin. The maximum voltage on mode pin has to be
limited to 3.6 V.
The voltage on MODE pin is used to select the number of phase used during
normal operation. The device has an internal resistor divider in order to have
1.7 V on MODE pin when it is left floating. See “phase number selection”
section for more details.
27
TCS
Temperature sense input pin.
Connecting the PTC network between 5 VCC and AGND in order to generate
on TCS pin a voltage proportional to the temperature.
The device reads the TCS pin voltage and compare it with two thresholds in
order to implements the warning and shutdown temperature action.
See “thermal monitoring” section for details.
28
5VCC
5 VCC pin. The pin output is 5 V voltage with a minimum of 20 mAdc.
The device supply the 5 VCC if VCC1_IC pin voltage is higher than 8 (typ).
Filter the 5 VCC pin with a capacitor (470 nFMIN - 2.2 F MAX) versus PGND.
29
UGATE3
Channel 3 HS driver output. It must be connected to the HS3 MOSFET gate.
A small series resistors helps in reducing device-dissipated power.
30
BOOT3
Channel 3 HS driver supply. Connect through a capacitor (100 nF typ.) to
PHASE3
Needed external bootstrap diode.
The device implements Vin detections through this pin. see “vin detection”
section for details. A small resistor in series to the boot diode helps in reducing
Boot capacitor overcharge (see reference schematic).
31
PHASE3
Channel 3 HS driver return path. Connected to the HS3 MOSFET source and
provides return path for the HS driver of channel 3.
32
LGATE3
Channel 3 LS driver output. Driver can support 12 V bus voltage.
A small series resistor helps in reducing device-dissipated power.
33
VCC2_DR
LS driver supply. Driver can support 12 V bus voltage.
Connect to 12 V_BUS and filter with RC network.
(Suggested value: R = 2.2 /0805 size; C=2x1 F MLCC capacitor vs. PGND).
34
UGATE2
Channel 2 HS driver output. It must be connected to the HS2 MOSFET gate.
A small series resistors helps in reducing device-dissipated power.
35
BOOT2
Channel 2 HS driver supply. Connect through a capacitor (100 nF typ.) to
PHASE2
Needed external bootstrap diode.
The device implements Vin detections through this pin. See “vin detection”
section for details. A small resistor in series to the boot diode helps in reducing
Boot capacitor overcharge (see Reference schematic).
36
PHASE2
Channel 2 HS driver return path. Connected to the HS2 MOSFET source and
provides return path for the HS driver of channel 2.
37
LGATE2
Channel 2 LS driver output. Driver can support 12 V bus voltage.
A small series resistor helps in reducing device-dissipated power.
Table 2.
Pin description (continued)
Pin n°
Name
Description
相关PDF资料 |
PDF描述 |
|---|---|
| L6910A | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6910GTR | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6917BD | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28 |
| L6917BDTR | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28 |
| L6917D | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6788ATR | 功能描述:开关变换器、稳压器与控制器 STEP DOWN SWITCH REG RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L67A/W | 制造商:Electro-Mech 功能描述: |
| L67G-FG | 制造商:Electro-Mech 功能描述: |
| L67O | 制造商:Electro-Mech 功能描述: |
| L67R-FG | 制造商:Electro-Mech 功能描述: |
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