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参数资料
| 型号： | L6716 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-48 |
| 文件页数： | 2/57页 |
| 文件大小： | 829K |
| 代理商： | L6716 |
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Pin description and connection diagram
L6716
10/57
Doc ID 14521 Rev 3
16
OUTEN
Output enable pin. Internally pulled up by 10 A (typ) to 3 V.
Forced low, the device stops operations with all MOSFETs OFF: all the protections are
disabled except for preliminary overvoltage.
Leave floating, the device starts-up implementing soft-start up to the selected VID code.
Cycle this pin to recover latch from protections; filter with 1 nF (typ) vs. SGND.
17
CS1+
Channel 1 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 1 inductor.
See “Layout guidelines” Section for proper layout of this connection.
18
CS1-
Channel 1 current sense negative input.
Connect through a Rg resistor to the output-side of the channel 1 inductor.
See “Layout guidelines” Section for proper layout of this connection.
19
CS2+
Channel 2 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 2 inductor.
Short to VOUT when using 2-phase operation.
See “Layout guidelines” Section for proper layout of this connection.
20
CS2-
Channel 2 current sense negative input.
Connect through a Rg resistor to the output-side of the channel 2 inductor.
Still connect to VOUT through Rg resistor when using 2-phase operation.
See “Layout guidelines” Section for proper layout of this connection.
21
CS3+
Channel 3 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 3 inductor.
See “Layout guidelines” Section for proper layout of this connection.
22
CS3-
Channel 3 current sense negative input.
Connect through a Rg resistor to the output-side of the channel 3 inductor.
See “Layout guidelines” Section for proper layout of this connection.
23
CS4+
Channel 4 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 4 inductor.
Short to VOUT when using 2-phase or 3-phase operation.
See “Layout guidelines” Section for proper layout of this connection.
24
CS4-
Channel 4 current sense negative input.
Connect through a Rg resistor to the output-side of the channel 4 inductor.
Still connect to VOUT through Rg resistor when using 2-phase or 3-phase operation.
See “Layout guidelines” Section for proper layout of this connection.
25
PWM4/
PH_SEL
PWM outputs, phase selection pin.
Internally pulled up by 10 A to 3.3 V (until the soft-start has not finished), connect to external
driver PWM input when 4-phase operation is used.
The device is able to manage HiZ status by setting the pis floating.
Short to SGND to select 3-phase operation and leave floating to select 2-phase operation.
26 to 33
VID0 to
VID7
Voltage identification pins. (not internally pulled up).
Connect to SGND to program a '0' or connect to the external pull-up resistor to program a '1'.
They allow programming output voltage as specified in Table 7.
Table 2.
Pin description (continued)
N°
Name
Description
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| L6717TR | 功能描述:开关变换器、稳压器与控制器 High-Efficienc AM2r2 Hybrid Controller 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 |
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