19-2262; Rev 0; 12/01
MAX5908 Evaluation Kit
General Description
The MAX5908 evaluation kit (EV kit) is a fully assembled
and tested surface-mount, dual hot-swap controller cir-
cuit board that provides current-limiting and Variable
Speed/Bilevel鈩?fault protection. The circuit uses a
MAX5908 IC in a 16-pin QSOP package and is config-
urable for an input range of +1.0V to +13.2V.
The EV kit is configured for +5V and +1.8V inputs. Both
inputs are configured for up to 10A of output current.
The MAX5908 controls two N-channel MOSFETs and
provides current regulation during startup for both
inputs. Several configurations allow the MAX5908 IC鈥檚
unique current-regulation architecture to be tailored to
the application. The current-limiting and short-circuit
protection features are configurable and demonstrate
the various features of the MAX5908.
The EV kit features several configurations for the startup
timer setting, current limit, and output-voltage monitor-
ing. The EV kit also provides power-on sequencing for
the outputs. The EV kit can also be used to evaluate a
MAX5906, MAX5907, or MAX5909 after replacing the
MAX5908 with the desired IC. Additionally, the EV kit
can be reconfigured to emulate a dual MAX5904 or
MAX5905 hot-swap controller design.
o
Input Voltage
+5V, VIN1 (as configured)
+1.8V, VIN2 (as configured)
o
Outputs Configured for +5V and +1.8V
(configurable from +1.0V to +13.2V)
o
Configured to 10A Output Current Capability
(both channels)
o
25mV Current-Limit Threshold (10A)
o
Demonstrates Unique Current-Regulation
Architecture
o
Configurable Startup Timer
o
Configurable Current Limits
o
Configurable Output Over/Undervoltage
Monitoring (both channels)
o
Power-On Sequencing
o
Evaluates MAX5906, MAX5907, MAX5909
(IC replacement required)
o
Emulates MAX5904, MAX5905
o
Surface-Mount Components
o
Fully Assembled and Tested
Features
Evaluates: MAX5906鈥揗AX5909
Ordering Information
Variable Speed/Bilevel is a trademark of Maxim Integrated
Products, Inc.
PART
MAX5908EVKIT
TEMP. RANGE
0擄C to +70擄C
IC PACKAGE
16 QSOP
Component List
DESIGNATION
C1, C2, C6
QTY
3
DESCRIPTION
0.1碌F
鹵10%,
50V X7R ceramic
capacitors (0805)
Taiyo Yuden UMK212BJ104KG
1000碌F, 16V OS-CON capacitors
(H case)
Sanyo 16SA1000M
Not installed capacitor (H case)
Not installed capacitors (0805)
3A, 30V Schottky diodes (M-flat)
Toshiba CMS02
0.0025鈩?/div>
鹵5%
1W sense resistors
(2512)
Dale/Vishay WSL2512 0.0025鈩?/div>
鹵5%
R86
DESIGNATION
R3, R4
R5
R6, R8, R10,
R14
R7
R9
R11
R12
R13
R15
N1, N2
QTY
2
1
4
1
1
1
1
1
1
2
DESCRIPTION
20k鈩?/div>
鹵1%
resistors (0805)
732k鈩?/div>
鹵1%
resistor (0805)
100k鈩?/div>
鹵1%
resistors (0805)
200k鈩?/div>
鹵1%
resistor (0805)
31.6k鈩?/div>
鹵1%
resistor (0805)
4.02k鈩?/div>
鹵1%
resistor (0805)
7.87k鈩?/div>
鹵1%
resistor (0805)
124k鈩?/div>
鹵1%
resistor (0805)
1k鈩?/div>
鹵5%
resistor (0805)
30V 100A N-channel MOSFETs
(D
2
PAK)
Fairchild FDB7030L
C3, C4
C5
C7, C8
D1, D2
2
0
0
2
R1, R2
2
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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