參數(shù)資料
型號(hào)： L6917
廠商： 意法半導(dǎo)體
英文描述： 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
中文描述： 5位可編程雙相控制器
文件頁(yè)數(shù)： 24/27頁(yè)
文件大小： 411K
代理商： L6917
L6917
24/27
Application Idea: 12V input 3.3V / 5V 40A output
Figure 17 shows the device in a high current server power supply application.
Adding an external resistor divider after the remote sense buffer gives the possibility to increase the regulated
voltage. Considering for example a divider by two (two equal resistors) the DAC range is doubled from 2.200V
to 3.700V with 50mV binary steps. It is then possible to regulate the 3.3V and 2.5V rails from the 12V available
from the AC/DC converter. The 5V railcan be obtained modifying the external divider. The regulator assures all
the advantages of the dual phase conversion (especially in the 5V conversion where the duty cycle is near the
50% and practically no ripple is present in the input capacitors) and a 300kHz free-running frequency that re-
duces components size. Output current ranges from 35A up to 50A.
Figure 17. Server power supply schematic
Part List
R1
10k
SMD 0805
R3, R4, R5, R6
8.2k
1%
SMD 0805
R7
820
1%
SMD 0805
R8
10k
82
0
0
330
4.7n
SMD 0805
R10
SMD 0805
R12 to R16
SMD 0805
R17, R18
SMD 0805
R19, R20
SMD 0805
C2
SMD 0805
C3, C4
100n
1
μ
10
μ
47
μ
SMD 0805
C5, C6, C7
Ceramic
SMD 1206
C8
Ceramic
SMD 1206
C9 to C13
Ceramic
SMD 1026
P GOO D
P GND
P GNDS2
ISEN 2
LGATE2
V SEN
FB
P HASE2
UGATE2
BOOT 2
V CC
COMP
SG ND
OSC / INH
VID0
VID1
VID2
VID3
VID4
PGNDS1
ISEN1
LGATE1
P HASE1
UGATE1
BOOT 1
VCCDR
6
24
25
26
27
16
15
2
5
4
3
1
13
14
22
21
20
19
18
17
7
28
23
10
9
8
11
12
FB R
FBG
C1
R7
R8
C2
R4
R3
Q3
Q4
C3
L2
C7
R10
D3
C5
C11..C13
C24
R1
R2
S1
S0
S3
S2
S4
R5
R6
Q1
L1
Q2
C4
D4
C6
Vin
GNDin
GNDCORE
VoutCORE
PGOOD
FBG
FBR
U1
L6917
C8
R13
R15
R12
D6
R14
C9,C10
R9
R18
D1
R17
R16
D2
R19
R20
D5
相關(guān)PDF資料
PDF描述
L6917B 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917BD 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917BDTR 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6OV12 Analog IC
L6OV15 Analog IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6917B 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
L6917BD 功能描述:DC/DC 開關(guān)控制器 Prog Dual-Phase Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6917BDTR 功能描述:DC/DC 開關(guān)控制器 Prog Dual-Phase Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6917D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
L6917DTR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
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