am79r251 Advanced Micro Devices, am79r251 Datasheet - Page 18

• Manufacturer Part Number: am79r251
• Description: Intelligent Subscriber Line Interface Circuit Islic
• Manufacturer: Advanced Micro Devices

Relay Driver Specifications
Figure 5.
18
Figure 5A. Ring Relay
Relay Driver Configuration
On Voltage
R2,R3 Off Leakage
Zener Break Over, R1
Zener On Voltage, R1
R2
Item
25 mA/relay sink
1 relay on
3 relays on
40 mA/ relay sink
1 relay on
3 relays on
R2,R3 = BGND
RYE = VBH
Iz = 100 A
Iz = 30 mA
Am79R251
Condition
RYE
Min
6.6
0
BGND
0.225
0.45
Typ
0.4
0.8
7.9
11
Max
100
0.3
0.5
0.7
1.0
R1
Unit
µA
V
V
V
Note
R3
3
3