MAX1874EVKIT Maxim Integrated, MAX1874EVKIT Datasheet

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MAX1874EVKIT

Manufacturer Part Number
MAX1874EVKIT
Description
Battery Management Evaluation Kit for the MAX1874
Manufacturer
Maxim Integrated
Series
MAX1874r
Datasheet
1.MAX1874EVKIT.pdf (5 pages)

Specifications of MAX1874EVKIT

Battery Type
Li-Ion, Li-Poly
Operating Supply Voltage
4.35 V to 6.5 V
Charge Safety Timers
No
Operating Supply Current
4 mA
Temperature Monitoring
No
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.
19-2985; Rev 0; 9/03
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.
DESIGNATION QTY
D2, D3
C1
C2
C3
C4
C5
C6
D1
D4
J1
________________________________________________________________ Maxim Integrated Products
1
1
1
1
1
1
0
2
1
1
4.7µF ±10%, 6.3V X5R ceramic
capacitor (0805)
TDK C2012X5R0J475K
1µF ±10%, 10V X7R ceramic
capacitor (0603)
TDK C1608X7R1A105K
2.2µF ±10%, 6.3V X5R ceramic
capacitor (0603)
TDK C1608X5R0J225K
2.2µF ±20%, 10V X5R ceramic
capacitor (0805)
Taiyo Yuden LMK212BJ225MG
4.7µF ±20%, 25V X7R ceramic
capacitor (1210)
TDK C3225X7R1E475M
0.1µF ±10%, 10V X5R capacitor
(0402)
TDK C1005X5R1A104K
Not installed (SOD-123)
500mA Schottky diodes (SOD-123)
Fairchild Semiconductor MBR0520L
Top-Mark: B2
Small red LED
Male USB type-B connector,
right angle
Assmann Electronics AU-Y1007
General Description
DESCRIPTION
MAX1874 Evaluation Kit
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
DESIGNATION QTY
MAX1874EVKIT
JU1, JU2
JU3, JU4
Q2, Q3
R3, R4
None
None
PART
Q1
U1
R1
R2
R5
R6
R7
J2
1
2
2
4
0
2
1
1
0
1
1
1
1
1
TEMP RANGE
0°C to +70°C
Ordering Information
2mm power jack, right angle
3-pin headers
2-pin headers
Shunts
Not installed (SuperSOT-3)
P-channel MOSFETs 0.055Ω, -20V
(SuperSOT-3)
Fairchild Semiconductor FDN302P
Top-Mark: 302
10kΩ ±5% resistor (0603)
1kΩ ±5% resistor (0603)
Not installed (0603)
100kΩ ±1% resistor (0603)
301kΩ ±1% resistor (0603)
3kΩ ±5% resistor (0603)
MAX1874ETE (16-pin 5
MAX1874 EV kit PC board
Component List
DESCRIPTION
IC PACKAGE
16 (5
✕
Features
5) Thin QFN
✕
5 thin QFN)
1

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MAX1874EVKIT Summary of contents

Page 1

... 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 Ordering Information PART TEMP RANGE MAX1874EVKIT 0°C to +70°C Component List DESIGNATION QTY J2 1 2mm power jack, right angle JU1, JU2 ...

Page 2

MAX1874 Evaluation Kit Component Suppliers SUPPLIER PHONE Assm ann E l ectr oni cs 877-277-6266 www.usa-assmann.com Fairchild 888-522-5372 www.fairchildsemi.com Semiconductor TDK 847-803-6100 .com p onent.td k.com Note: Please indicate that you are using the MAX1874 when contacting ...

Page 3

Evaluating Other DC Input Fast- Charge Currents (I The MAX1874 EV kit is preset with a DC input fast- charge current ( 750mA. Taking the shunt OFF BATT jumper JU4 changes I to 1A. However, I BATT also ...

Page 4

MAX1874 Evaluation Kit DCIN GND LOAD OPEN J2 GND USBIN OPEN 2 USB "B" J1-1 J1-2 J1 J1-3 REF J1-4 100kΩ Figure 1. MAX1874 EV Kit Schematic 4 ...

Page 5

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5 © 2003 Maxim Integrated Products MAX1874 Evaluation Kit Figure 3. MAX1874 EV Kit PC Board Layout— ...

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