CM8500 Champion Microelectronic Corp., CM8500 Datasheet - Page 5

• Manufacturer Part Number: CM8500
• Description: 3A BUS TERMINATOR
• Manufacturer: Champion Microelectronic Corp.

APPLICATION CIRCUIT
2004/06/01
Vref-OUT
J3
TP1
BNC
VTT
J1
4
3
1
2
1
2
1
Rev. 1.1
C13
104
100uf/6.3V
C3
104
C12
R8
100
100uf/6.3V
C11
820uf/6.3V
C7
L1
3.3uH
J4ON/OFF
2
1
C2
104
100uf/6.3V
R5
100k
Figure 1. CM8500 Typical Application
R6
10k
Champion Microelectronic Corporation
C14
10uf/6.3V
2
1
(Schematic of CM8500TEVAL)
C15
VDD
R7
10k
1
2
1
R4
1k
1
R3 200k
2
SK12
C4
104
D6
D5
SK12
C6
102
2
VCC
C8
102
1
2
3
4
5
6
7
8
VCC1
VDD1
VL1
PGND1
AGND1
SD
2/VCC
G-sense AGND3
U1 CM8500
PGND2
AGND4
VCCQ
VCC2
VDD2
VL2
FB
16
15
14
13
12
11
10
9
NOTE:
J3:referance output provided from Vtt
J4:short :Demo kit on .
J6:reference output provided from shunt regulator
J5:pin1 ,pin2 short:Vtt = 1/2Vcc
open:off(into shutdown mode)
When external voltage applied ,pin1,2 should be open
and pin2:connect to external voltage (+)
R6,R7(option circuit)forVttVOLTAGEADJUST
Vtt=(Vcc*R6)/R6+R7
C5
104
2
pin3:connect to external voltage (-)
Vtt=1/2 external voltage
J5
IN/EXT
C1
104
VDD
3
1
100uf/6.3V
C9
VCC
3A B
10uf/6.3V
C10
R1
5R1
US
VDD
470uf/6.3V
T
C16
ERMINATOR
CM8500
Page 5
J2
DC-INPUT
1
2