参数资料
型号: MAX5058EVKIT
厂商: Maxim Integrated Products
文件页数: 17/25页
文件大小: 0K
描述: IC DRVR SYNC RECT 28-TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,隔离
输出电压: 3.3V
电流 - 输出: 15A
输入电压: ±36 V ~ 72 V
稳压器拓扑结构: 正向转换器
频率 - 开关: 250kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX5058
Parallelable Secondary-Side Synchronous Rectifier
Driver and Feedback-Generator Controller ICs
1) Select a parallel equivalent resistance R eq value to
produce the nominal reference voltage. For exam-
ple, R eq = 35.4k Ω gives you V IREF = 1.77V.
2) Select the margin-up percentage value:
5) Select the margin-down percentage value:
Δ D = 5%
6) Recalculate R eq with the selected values:
3) Calculate R 32 :
Δ U = 5%
R eq =
R 12 R 32
R 12 + R 32
R 32 = R eq ×
100% + Δ U
Δ U
R eq = 35.24k Ω .
7) Calculate R 33 :
R 32 = 743.4k Ω . Calculated
Select the nearest 0.1% value.
R 33 =
100 % × R eq × R 12
R 12 × ( 100 % + Δ D ) - 100 % × R eq
R 32 = 741k Ω .
4) Calculate R 12 :
Selected
R 33 = 361.186k Ω .
Select the nearest 0.1% value:
Calculated
R 12 = 32
R × Δ U
100 %
R 12 = 37.05k Ω . Calculated
Select the nearest 0.1% value.
R 12 = 37k Ω . Selected
COMPV
13
INV
C28
R 33 = 361k Ω . Selected
8) Calculate the reference voltage with the selected
chosen values:
V IREF = 50μA ? R eq . R eq from step 6.
V IREF = 1.762V.
V OUT
VSP
17
VSO
E/A
14
15
RSA
VSN
16
V OUT = (50 μ A) x R12
FOR: 0.5V ≤ V OUT ≤ 2.5V
I REF
50 μ A
I REF
12
R12
Figure 11. Remote-Sense Amplifier Connection for 0.5V ≤ VOUT ≤ 2.5V
______________________________________________________________________________________
17
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MAX5059 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Parallelable Secondary-Side Synchronous Rectifier Driver and Feedback-Generator Controller ICs
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