HC55121IBZ Intersil, HC55121IBZ Datasheet - Page 5

• Manufacturer Part Number: HC55121IBZ
• Manufacturer: Intersil

Specifications of HC55121IBZ

• Number Of Channels: 1
• On-hook Transmission: Yes
• Polarity Reversal: Yes
• On-chip Ring Relay Driver: Yes
• Longitudinal Balanced: 53
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -40C to 85C
• Loop Current Limit: 30mA
• Operating Temperature Classification: Industrial
• Pin Count: 28
• Mounting: Surface Mount
• Operating Current: 2.7mA
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Lead Free Status / RoHS Status: Compliant

Electrical Specifications
2-WIRE PORT
Overload Level, Off Hook
Forward and Reverse
Overload Level, On Hook
Forward and Reverse
Input Impedance (Into Tip and Ring)
Longitudinal Impedance (Tip, Ring)
Forward and Reverse
LONGITUDINAL CURRENT LIMIT (TIP, RING)
On-Hook, Off-Hook (Active),
R
Forward and Reverse
L
= 736Ω
PARAMETER
FIGURE 3A. LONGITUDINAL CURRENT LIMIT ON-HOOK (ACTIVE)
FIGURE 1. OVERLOAD LEVEL (OFF HOOK, ON HOOK)
R
L
E
L
10µF
10µF
V
TR
I
DCMET
T
R
applies to the part. (NA) symbol used to indicate the test does not apply to the part.
A
OH
368Ω
1% THD, I
(Note 2, Figure 1)
1% THD, IDCMET ≤ 5mA
(Note 3, Figure 1)
0 < f < 100Hz (Note 4, Figure 2)
No False Detections, (Loop
Current), LB > 45dB (Notes 5, 6,
Figures 3A, 3B)
368Ω
C
C
= -40°C to 85°C, V
= 40kΩ, C
TIP
RING
A
A
TEST CONDITIONS
DCMET
H
= 0.1µF, C
TIP
RING
VRX
≥ 18mA
V
CC
TX
SHD
= +5V ±5%, V
VRX
V
DC
E
TX
RX
= 4.7µF, C
BH
RT/REV
= -48V, V
MIN
3.2
1.3
28
-
-
= 0.47µF, GND = 0V, RL = 600Ω. Unless Otherwise Specified.
Z
BL
T
TYP
/200
0
-
-
-
= -24V, PTG = Open, R
MAX
-
-
-
-
-
mA RMS
FIGURE 3B. LONGITUDINAL CURRENT LIMIT OFF-HOOK (ACTIVE)
V
V
Ω/Wire
UNITS
PEAK
PEAK
Ω
/
P1
Wire Forward
0 < f < 100Hz
E
= R
L
1V
P2
E
HC55120
Forward
Forward
Forward
RMS
FIGURE 2. LONGITUDINAL IMPEDANCE
L
Only
Only
Only
Only
= 0Ω, Z
•
C
C
T
368Ω
368Ω
= 120kΩ, R
HC55121
300Ω
300Ω
LZ
•
•
•
•
•
T
= V
A
A
R
A
A
T
T
/A
HC55130/1 HC55140/1 HC55142/3 HC55150/1
LIM
Forward
Forward
Forward
Forward
T
V
Only
Only
Only
Only
V
TIP
RING
T
= 38.3kΩ, R
R
(•)
•
TIP
RING
SHD
Symbol used to indicate the test
VRX
V
TX
LZ
VRX
V
D
•
•
•
•
•
TX
R
= 50kΩ, RDC_RAC = 20kΩ,
= V
R
V
/A
TX
R
•
•
•
•
•
•
•
•
•
•