MAX1874EVKIT データシートの表示（PDF） - Maxim Integrated
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MAX1874EVKIT Datasheet PDF : 5 Pages
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19-2985; Rev 0; 9/03
MAX1874 Evaluation Kit
General Description
The MAX1874 evaluation kit (EV kit) is designed to eval-
uate the MAX1874 USB and/or AC-adapter-powered,
single-cell Li+ battery charger. The EV kit board con-
tains an AC-adapter power jack, a male USB type-B
connector, and a charging LED indicator.
The MAX1874 EV kit has four jumpers (JU1–JU4) to
easily change the battery charger’s configuration.
Jumper JU1 enables or disables charging, jumper JU2
selects the USB charging current for either a maximum
of 100mA or 500mA, jumper JU3 allows thermistor
sensing, and jumper JU4 sets the DC input fast-charge
current for either 750mA or 1A. The DC input fast-
charge current is also resistor-adjustable.
The DC input accepts up to 18V, but inhibits charging
above 6.2V. The USB input accepts inputs up to 6.5V.
Features
o DC Input Up to 18V
o USB Input Up to 6.5V
o Charge from USB and/or AC Adapter
o Male USB Type-B Connector
o AC-Adapter Power Jack
o Easy Configuration Changes Using Jumpers
PART
MAX1874EVKIT
Ordering Information
TEMP RANGE
0°C to +70°C
IC PACKAGE
16 (5 ✕ 5) Thin QFN
DESIGNATION QTY
DESCRIPTION
4.7µF ±10%, 6.3V X5R ceramic
C1
1 capacitor (0805)
TDK C2012X5R0J475K
1µF ±10%, 10V X7R ceramic
C2
1 capacitor (0603)
TDK C1608X7R1A105K
2.2µF ±10%, 6.3V X5R ceramic
C3
1 capacitor (0603)
TDK C1608X5R0J225K
2.2µF ±20%, 10V X5R ceramic
C4
1 capacitor (0805)
Taiyo Yuden LMK212BJ225MG
4.7µF ±20%, 25V X7R ceramic
C5
1 capacitor (1210)
TDK C3225X7R1E475M
0.1µF ±10%, 10V X5R capacitor
C6
1 (0402)
TDK C1005X5R1A104K
D1
0 Not installed (SOD-123)
D2, D3
500mA Schottky diodes (SOD-123)
2 Fairchild Semiconductor MBR0520L
Top-Mark: B2
D4
1 Small red LED
Male USB type-B connector,
J1
1 right angle
Assmann Electronics AU-Y1007
Component List
DESIGNATION
J2
JU1, JU2
JU3, JU4
QTY
1
2
2
DESCRIPTION
2mm power jack, right angle
3-pin headers
2-pin headers
None
4 Shunts
Q1
Q2, Q3
R1
R2
R3, R4
R5
R6
R7
U1
None
0 Not installed (SuperSOT-3)
P-channel MOSFETs 0.055Ω, -20V
2
(SuperSOT-3)
Fairchild Semiconductor FDN302P
Top-Mark: 302
1 10kΩ ±5% resistor (0603)
1 1kΩ ±5% resistor (0603)
0 Not installed (0603)
1 100kΩ ±1% resistor (0603)
1 301kΩ ±1% resistor (0603)
1 3kΩ ±5% resistor (0603)
1 MAX1874ETE (16-pin 5 ✕ 5 thin QFN)
1 MAX1874 EV kit PC board
________________________________________________________________ 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.
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