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参数资料
| 型号： | L6712D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 26/29页 |
| 文件大小： | 624K |
| 代理商： | L6712D |
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L6712A L6712
6/29
10
9
DROOP
A current proportional to the sum of the current sensed in both channel is
sourced from this pin (50
A at full load, 70A at the Constant Current threshold).
Short to FB to implement the Droop effect: the resistor connected between FB
and VSEN (or the regulated output) allows programming the droop effect.
Otherwise, connect to GND directly or through a resistor (43k
max) and filter
with 1nF capacitor. In this last case, current information can be used for other
purposes.
11
REF_IN /
OUT
Reference input/output. Filter vs. GND with 1nF ceramic capacitor (a total of
100nF capacitor is allowed).
It reproduces the reference used for the regulation following VID code: when
VID=111, the reference for the regulation must be connected on this pin.
References ranging from 0.800V up to 3.300V can be accepted.
12
VSEN
Connected to the output voltage it is able to manage Over & Under-voltage
conditions and the PGOOD signal. It is internally connected with the output of the
Remote Sense Amplifier for Remote Sense of the regulated voltage.
Connecting 1nF capacitor max vs. GND can help in reducing noise injection at
this pin.
If no Remote Sense is implemented, connect it directly to the regulated voltage in
order to manage OVP, UVP and PGOOD.
13
ISEN1
Channel 1 current sense pin. The output current may be sensed across a sense
resistor or across the low-side mosfet RdsON. This pin has to be connected to the
low-side mosfet drain or to the sense resistor through a resistor Rg.
The net connecting the pin to the sense point must be routed as close as
possible to the PGNDS net in order to couple in common mode any picked-up
noise.
14
PGNDS1
Channel 1 Power Ground sense pin. The net connecting the pin to the sense
point must be routed as close as possible to the ISEN1 net in order to couple in
common mode any picked-up noise.
15
PGNDS2
Channel 2 Power Ground sense pin. The net connecting the pin to the sense
point must be routed as close as possible to the ISEN2 net in order to couple in
common mode any picked-up noise.
16
ISEN2
Channel 2 current sense pin. The output current may be sensed across a sense
resistor or across the low-side mosfet RdsON. This pin has to be connected to the
low-side mosfet drain or to the sense resistor through a resistor Rg.
The net connecting the pin to the sense point must be routed as close as
possible to the PGNDS net in order to couple in common mode any picked-up
noise.
17
18
OSC/INH
FAULT
Oscillator pin.
It allows programming the switching frequency of each channel: the equivalent
switching frequency at the load side results in being doubled.
Internally fixed at 1.24V, the frequency is varied proportionally to the current sunk
(forced) from (into) the pin with an internal gain of 6kHz/
A (See relevant section
for details). If the pin is not connected, the switching frequency is 150kHz for
each channel (300kHz on the load).
The pin is forced high (5V Typ.) when an Over Voltage is detected; to recover
from this condition, cycle VCC.
Forcing the pin to a voltage lower than 0.6V, the device stops operation and
enters the inhibit state.
18
20
FBG
Remote sense amplifier inverting input. It has to be connected to the negative
side of the load to perform programmable remote sensing through apposite
resistors (see relative section).
19
21
FBR
Remote sense amplifier non-inverting input. It has to be connected to the positive
side of the load to perform programmable remote sensing through apposite
resistors (see relative section).
Table 6. Pin Function (continued)
N. (*)
Name
Description
SO
VFQFPN
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6712DTR | 功能描述:开关变换器、稳压器与控制器 2-Ph Interleaved 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 |
| L6712Q | 功能描述:开关变换器、稳压器与控制器 2-Ph Interleaved 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 |
| L6712QTR | 功能描述:开关变换器、稳压器与控制器 2-Ph Interleaved 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 |
| L6712大电流DCDC转换器 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| L6713A | 功能描述:DC/DC 开关控制器 2/3 Phase controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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