19-2880; Rev 0; 6/03
MAX1908 Evaluation Kit
General Description
Features
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.
ꢀ Input Current Limiting
ꢀ ±±0.5 ꢀBtterꢁy-VotBge ꢂetyꢃVint ꢄAAurBAꢁ ꢅUing
InternBo ReferenAe
ꢀ ꢄnBoVg InputU CVntrVo ChBrge Current Bnd
ꢀBtterꢁy-VotBge ꢂet ꢃVint
ꢀ MVnitVr OutputU fVr
Current DrBwn frVm ꢄC Input ꢂVurAe
ChBrging Current
ꢄC ꢄdBpter ꢃreUenAe
ꢀ ꢅp tV 1706- ꢀBtterꢁy-VotBge ꢂet ꢃVint
ꢀ +8- tV +2.- Input -VotBge
Ordering Information
ꢀ 3ꢄ ꢀBtterꢁ ChBrge Current
ꢃꢄRT
TEMꢃ RꢄNGE
IC ꢃꢄCKꢄGE
ꢀ ChBrgeU ꢄnꢁ ꢀBtterꢁ ChemiUtrꢁ: Li+, NiCd, NiMH,
MAX1908EVKIT
0°C to +70°C
28 QFN
LeBd ꢄAid, etA0
ꢀ ꢂurfBAeyMVunt CVnUtruAtiVn
ꢀ Fuooꢁ ꢄUUemboed Bnd TeUted
Component List
DEꢂIGNꢄTION QTY
DEꢂCRIꢃTION
DEꢂIGNꢄTION QTY
DEꢂCRIꢃTION
1µF 10%, 25V X7R ceramic
capacitor (1206)
Murata GRM31MR71E105K
Taiyo Yuden TMK316BJ105KL
TDK C3216X7R1E105K
22µF 20%, 25V X5R ceramic
capacitors (2220)
TDK C5750X5R1E226M
C1, C4
2
C16
1
C2, C3
C5, C6
0
0
Not installed (2220)
Not installed, E size
0.01µF 10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H103K
Taiyo Yuden UMK107B103KZ
TDK C1608X7R1H103K
0.1µF 10%, 25V X7R ceramic
capacitors (0603)
Murata GRM188R71E104K
TDK C1608X7R1E104K
C7, C9, C12,
C18, C19, C20
C21, C22
D1
2
1
2
6
C8, C13, C14,
C15, C17
Schottky diode, 10A, D-Pak
Diodes Inc. MBRD1035CTL
ON Semiconductor MBRD1035CTL
0
1
Not installed (0603)
4.7µF 10%, 6.3V X5R ceramic
capacitor (0603)
TDK C1608X5R0J475K
C10
Schottky diodes, 0.5A, 30V
SOD-123
Diodes Inc. B0530W
General Semiconductor MBR0530
ON Semiconductor MBR0530
D2, D3
1µF 10%, 6.3V X5R ceramic
capacitors (0603)
Murata GRM188R60J105K
Taiyo Yuden JMK107BJ105KA
TDK C1608X5R1A105K
C11, C23
2
Schottky diode, 1A, 40V, SMA
Central Semiconductor
CMSH1-40ML
D4
1
Diodes Inc. B130L
________________________________________________________________ Maxim Integrated Products
1
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.