19-2880; Rev 0; 6/03
MAX1908 Evaluation Kit
General Description
The MAX1908 evaluation kit (EV kit) is an accurate and
efficient multichemistry battery charger. It uses analog
inputs to control charge voltage and current. The EV kit
can charge 2 to 4 series lithium-ion (Li+) cells with a
current up to 3A. High efficiency is achieved by a buck
topology with synchronous rectification. The EV kit pro-
vides outputs that can be used to monitor the input cur-
rent, the battery-charging current, and the presence of
an AC adapter.
o
Input Current Limiting
o
鹵0.5% Battery-Voltage Set-Point Accuracy Using
Internal Reference
o
Analog Inputs Control Charge Current and
Battery-Voltage Set Point
o
Monitor Outputs for
Current Drawn from AC Input Source
Charging Current
AC Adapter Presence
o
Up to 17.6V Battery-Voltage Set Point
o
+8V to +25V Input Voltage
o
3A Battery Charge Current
o
Charges Any Battery Chemistry: Li+, NiCd, NiMH,
Lead Acid, etc.
o
Surface-Mount Construction
o
Fully Assembled and Tested
Features
Evaluates: MAX1908
Ordering Information
PART
MAX1908EVKIT
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
28 QFN
Component List
DESIGNATION
C1, C4
C2, C3
C5, C6
C7, C9, C12,
C18, C19, C20
C8, C13, C14,
C15, C17
C10
QTY
2
0
0
DESCRIPTION
22碌F
鹵20%,
25V X5R ceramic
capacitors (2220)
TDK C5750X5R1E226M
Not installed (2220)
Not installed, E size
0.1碌F
鹵10%,
25V X7R ceramic
capacitors (0603)
Murata GRM188R71E104K
TDK C1608X7R1E104K
Not installed (0603)
D1
1
4.7碌F
鹵10%,
6.3V X5R ceramic
capacitor (0603)
TDK C1608X5R0J475K
1碌F
鹵10%,
6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J105K
Taiyo Yuden JMK107BJ105KA
TDK C1608X5R1A105K
D2, D3
2
1
C21, C22
2
DESIGNATION
QTY
DESCRIPTION
1碌F
鹵10%,
25V X7R ceramic
capacitor (1206)
Murata GRM31MR71E105K
Taiyo Yuden TMK316BJ105KL
TDK C3216X7R1E105K
0.01碌F
鹵10%,
50V X7R ceramic
capacitors (0603)
Murata GRM188R71H103K
Taiyo Yuden UMK107B103KZ
TDK C1608X7R1H103K
Schottky diode, 10A, D-Pak
Diodes Inc. MBRD1035CTL
ON Semiconductor MBRD1035CTL
Schottky diodes, 0.5A, 30V
SOD-123
Diodes Inc. B0530W
General Semiconductor MBR0530
ON Semiconductor MBR0530
Schottky diode, 1A, 40V, SMA
Central Semiconductor
CMSH1-40ML
Diodes Inc. B130L
C16
1
6
0
C11, C23
2
D4
1
________________________________________________________________
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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