MAX845ESA Maxim Integrated Products, MAX845ESA Datasheet - Page 9

• Manufacturer Part Number: MAX845ESA
• Description: IC DRVR XFRMR CMOS PCMCIA 8SOIC
• Manufacturer: Maxim Integrated Products

Specifications of MAX845ESA

• Applications: Transformer Driver, PCMCIA
• Voltage - Input: 3.3V, 5V
• Number Of Outputs: 1
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 7. 5V from Telephone-Subscriber Line
Figure 8. Typical 4mA/20mA Application Circuit
V
1k
IN
TELEPHONE SUBSCRIBER LINE
5V
0.1V to 0.5V
6.8V
2W
100k
680k
D1
4
100k
_______________________________________________________________________________________
100k
3
2
SD
MAX480
GND1
2
MAX845
Q1
2N3906
V
CC
7
4
6
2M
GND2
7
100k
49.9k
6
D1
D2
1
8
Q2
2N3904
1
2
3
4
C1
0.1µF
4
ISOLATION
1CT:5CT
SD
BARRIER
IL300
Isolated Transformer Driver
GND1
MAX845
2
1N5817
1N5817
IC1
V
CC
6
GND2
for PCMCIA Applications
6
5
7
D1
D2
FS
3
1
8
N.C.
24V UNREGULATED
1:2:1
ISOLATION
T1
BARRIER
10µF
1N5817
1N5817
49.9k
D2
D3
3
2
MAX480
GND
GND
ISO
78L05
OUT
IN
0.1µF
4
6
24.9
7
ISO
5V
10k
TL431
IC2
2N3904
0k to 1k
R
L
22k
22k
2N3904
I
4mA to 20mA
OUT
5V @ 50mA
ISO OUTPUT
9