19-3198; Rev 0; 2/04
MAX8555A Evaluation Kit
General Description
The MAX8555A evaluation kit (EV kit) demonstrates the
functionality of the MAX8555A ORing MOSFET con-
troller, which provides redundancy and fault isolation to
highly reliable power systems. The EV kit is configured
for 1.5V operation, but can also be modified to operate
in 0.5V to 3.3V power systems.
During startup, the EV kit monitors the voltage differ-
ence between the power supplies VIN1 or VIN2 and a
system power bus VOUT. Once the voltage difference
is less than 50mV (typ), the MAX8555A turns on the two
associated ORing MOSFETs, connecting the power
supply to the system power bus. Once the MOSFETs
are fully on, the EV kit circuit monitors the supply cur-
rent and voltages to protect against undervoltage
(UVP), overvoltage (OVP), and reverse-current fault
conditions. PC board pads for fault output signals are
provided for circuit monitoring.
Features
? 1+1 Redundant System for a 1.5V Bus
(0.5V to 3.3V with Modifications)
? Eliminates ORing Diode Power Dissipation
? Reverse-Current Detection
? Adjustable Undervoltage Threshold
(Configured to 0.75V)
? Adjustable Overvoltage Threshold
(Configured to 2V)
? FAULT Output Status Indicator
? Adjustable Soft-Start
? Supports Up to 20A of Load Current
? Surface-Mount Construction
? Fully Assembled and Tested
Ordering Information
PART
MAX8555AEVKIT
TEMP RANGE
0 ° C to +70 ° C
IC PACKAGE
10 μMax
Component List
DESIGNATION
C1, C6
C2, C7
C3, C8
C4, C5, C9, C10
C11, C12, C13
C14, C15, C16
C17, C18
QTY
0
2
2
4
3
3
2
DESCRIPTION
Not installed, ceramic capacitors
(0603)
0.01μF ± 10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H103K or
Taiyo Yuden UMK107B103KZ
0.1μF ± 10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H104K or
Taiyo Yuden UMK107BJ104KA
1000pF ± 10%, 50V X7R ceramic
capacitors (0603)
TDK C1608X7R1H102K or
Taiyo Yuden UMK107B102KZ
1000μF ± 20%, 6.3V electrolytic
capacitors (8 x 10.2)
SANYO 6CV1000AX
1μF ± 10%, 10V X7R ceramic
capacitors (0603)
TDK C1608X7R1A105K
150pF ± 5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H151J
DESIGNATION
JU1, JU2
N1–N4
R1, R9
R2, R10
R3, R11
R4, R12
R5
R6
R7, R15
R8, R16, R17,
R18
R13, R14
TP1, TP2
U1, U2
VIN1, VIN2,
VOUT, GND,
GND, GND
None
None
QTY
2
4
2
2
2
2
1
1
2
0
2
2
2
6
2
1
DESCRIPTION
2-pin headers
30V, 75A, N-channel MOSFETs
(D 2 PAK)
Vishay SUB75N03-04 or
Fairchild FDB7045L
2.2 ? ± 5% resistors (0603)
47.5k ? ± 1% resistors (0603)
4.99k ? ± 1% resistors (0603)
10k ? ± 1% resistors (0603)
3.01k ? ± 1% resistor (0603)
1k ? ± 1% resistor (0603)
24.9k ? ± 1% resistors (0603)
Not installed, resistors (0603)
6.04k ? ± 1% resistors (0603)
PC test points (red)
MAX8555AEUB (10-pin μMAX)
Noninsulated banana jack
connectors
Shunts (JU1, JU2)
MAX8555A PC board
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数
MAX8555ETB+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8555ETB+T 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8555ETB-T 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX8555EUB 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX8555EUB+ 功能描述:功率驱动器IC .5-3.3V ORing MOSFET Controller RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX8555EUB+T 功能描述:功率驱动器IC .5-3.3V ORing MOSFET Controller RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX8555EUB-T 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
MAX8556ETE 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压(最大值):307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20