19-2508; Rev 0; 7/02
MAX1894/MAX1924 Evaluation Kit
General Description
The MAX1894 evaluation kit (EV kit) is a fully assembled
and tested circuit board. It uses the MAX1894 lithium-
ion (Li+) battery-pack protector to protect four series
Li+ cell battery packs against overvoltage, undervolt-
age, excessive charge/discharge currents, and battery
pack-short conditions. Three external P-channel
MOSFETs control the charge and discharge paths of
the battery pack. The MAX1894 EV kit provides two
inputs, which can be used by a microcontroller (碌C) to
control the protection MOSFETs or put the MAX1894 in
shutdown mode. The EV kit also evaluates the MAX1924.
o
Protects Against Cell Overvoltage
o
Protects Against Cell Undervoltage
o
Protects Against Excessive Charge/Discharge
Currents and Pack-Short Conditions
o
0.8碌A(chǔ) (typ) Shutdown Supply Current Prevents
Deep Discharge of Cells
o
Low Operating Supply Current, 30碌A(chǔ) (typ)
o
Small 16-Pin QSOP Package
o
Fully Assembled and Tested
Features
Evaluates: MAX1894/MAX1924
Ordering Information
PART
MAX1894EVKIT
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
16 QSOP
Component List
DESIGNATION
C1
QTY
1
DESCRIPTION
4.7碌F 鹵20%, 6.3V X7R
ceramic capacitor (0805)
Taiyo Yuden JMK212BJ475MG
0.1碌F 鹵10%, 50V X7R
ceramic capacitors (0805)
Taiyo Yuden UMK212BJ104KG
0.1碌F to 1碌F 鹵20%, 50V X7R
ceramic capacitors (0805),
not installed
1碌F 鹵10%, 6.3V X5R
ceramic capacitor (0603)
TDK C1608X5R0J105K
0.1碌F 鹵10%,16V X7R
ceramic capacitors (0603)
Taiyo Yuden EMK107BJ104KA
2.2碌F 鹵10%, 25V X7R
ceramic capacitor (1206)
TDK C3216X7R1E225K
0.1碌F 鹵10%, 50V X7R
ceramic capacitors (0805)
Taiyo Yuden UMK212BJ104KG,
not installed
100mA, 30V, Schottky diode,
SOT23
Central Semiconductor CMPSH-3
DESIGNATION
J1, J2
JU1, JU2, JU3
JU4, JU5
P1
QTY
2
3
2
1
DESCRIPTION
Nonisolated banana jacks
3-pin headers
2-pin headers
-0.13A, -50V, P-channel MOSFET,
SOT23
Fairchild Semiconductor BSS84
8A, -30V, P-channel MOSFETs ,
8-pin SO
Vishay Siliconix Si4435DY or
International Rectifier Si4435DY
510鈩?鹵5% resistor (2512)
0.02鈩?鹵1%, 2W resistor (2512)
IRC LRC-LRF 2512-01-R020-F
51鈩?鹵5% resistor (0805)
1k鈩?鹵5% resistors (0805)
10鈩?鹵5% resistor (0805)
5-pin terminal block
MAX1894XEEE, 16-pin QSOP
MAX1615EUK-T, 5-pin SOT23
Shunts (JU1鈥揓U5)
MAX1894 PC board
MAX1894 data sheet
MAX1894 EV kit data sheet
C2, C12
2
C3, C4
0
P2, P3
2
C5
1
R1
R2
R3
R4, R5, R6
R7
TB1
U1
U2
None
None
None
None
1
1
1
3
1
1
1
1
5
1
1
1
C6, C7, C8
3
C9
1
C10, C11, C13,
C14
0
D1
1
________________________________________________________________
Maxim Integrated Products
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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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