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Details, datasheet, quote on part number:EV2050
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Datasheet text preview:
Product Brief
EV2050
Power GaugeTM Evaluation Board
Features
ä ä ä ä ä ä ä bq2050 Power GaugeTM IC evaluation and development system PC interface hardware for easy access to state-of-charge information via the serial port Battery state-of-charge monitoring for 1- to 5-cell (series) applications On-board voltage regulator for Power Gauge operation State-of-charge information displayed on bank of 5 LEDs Nominal capacity jumper-configurable Cell anode type (coke or graphite) jumper-configurable
General Description
The EV2050 Evaluation System provides a development a n d e v a l u a t i o n e n v i r o n m e n t f o r t h e b q 2 0 5 0 Po w e r Gauge IC. The EV2050 incorporates a bq2050 sense resistor, and all other hardware necessary to provide a power monitoring function for 1 to 5 series Li-Ion cells. Hardware for an PC interface is included on the EV2050 so that easy access to the state-of-charge information can be achieved via the serial port of the bq2050. Direct connection to the serial port of the bq2050 is also m a d e av a i l a b l e f o r ch e ck - o u t o f t h e f i n a l h a r d wa r e / s o f t wa r e i m p l e m e n t a t i o n .
The menu-driven software provided with the EV2050 displays charge/discharge activity and allows user interface to the bq2050 from any standard DOS PC. A full data sheet for this product is available from the Unitrode web site, or you may contact the factory for one.
SLUU057OCTOBER 1997
Rev E Board
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Product Brief EV2050
EV2050 Board Schematic
JP9
VCC
1 2 3
R4
100
L B
Q1
2N7000
D7
1N4148
LBAT+ BAT+
2 1
VCC
B+_SEL
J1
D6
1N5232
R5
470K A SHEET_2
SR1
220K
SR1
220K
SR1
220K
SR1
220K
SR1
220K
SR1
220K
R6
100K 1%
JP1
1 2 3 PG1 220K 2
JP2
1 2 3 PG2 220K
JP3
1 2 3 PG3 220K
JP4
1 2 3 PG4 220K
JP5
1 2 3 PG5 220K
JP6
1 3 PG6 220K 1 3 5 7 9
JP8
2 4 6 8 10 BAT_DIV
R7
301K 1%
R8
499K 1%
SR2 JP7
SR2
SR2
SR2
SR2
SR2 C1
0.1UF VCC
R9
698K 1%
R1
470
LCOM
D1
COLOR
U1 D2
COLOR 1 2 3 4 5 6 7 8 LCOM VCC SEG1 REF SEG2 N/C SEG3 DQ SEG4 RBI SEG5 SB PROG6 DISP VSS SR 16 15 14 13 12 11 10 9
3
DISPLAY
4
SW1
R10
909K 1%
BBU GND DISP
J4
1 2 3 4
1N4148
R2
470
D3
COLOR
D4
COLOR
D16 C2
0.1UF
R12
200K
GND
BAT-
1 2
R3
470
D5
COLOR
BQ2050
R11
100K 1%
C3 C4
1UF 50V 0.1UF
R13
0.1 3W
J2
EV2050, Rev E, 6-4-97, 1 of 2
Rev. E Board
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EV2050 Product Brief EV2050 Board Schematic (Continued)
R16
100
SHEET_1
A
R17
20K -
D14
1N4148
J3
1 2 DQ
R15 R18
100 100K
U2
+ LM358N
R19
100K -
C5
0.1UF
1 2 3 4 5
P1
6 7 8 9
R14
100
D9
1N751A
Q2
2N7000
D11
1N4148 +
U2
LM358N 1N4148
I/O
D8
1N4148
C6
0.1UF
D10
1N5245A
D12 D15
1N4148
1N4148
D13
EV2050, Rev E, 6-4-97, 2 of 2
Rev E Board
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Copyright © 1999, Texas Instruments Incorporated
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