AM79489 データシートの表示（PDF） - Unspecified
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AM79489 Datasheet PDF : 20 Pages
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ELECTRICAL CHARACTERISTICS (CONTINUED)
Description
Line Characteristics
IL, Active
Short loop
Medium loop
Long loop
IL, Active
OVH = 0
Short loop
Medium loop
Long loop
IL, Accuracy, Standby state
IL, Loop current, Disconnect state
ILLIM
Vapparent
VAB, Open loop voltage
BAT SW hysteresis
BAT SW threshold
Test Conditions (See Note 1)
RLDC = 250 Ω
RLDC = 700 Ω
RLDC = 2 kΩ
RLDC = 250 Ω
RLDC = 700 Ω
RLDC = 2 kΩ
IL
=
--V-----B---A----T---1-----–-----3----V---
RL + 400
Current limited region
RL = 0
Active, A and B to GND
–5, –6*
TA = 25°C
Active, Normal
Reverse Polarity
OVH = 0
(from VBAT1 to VBAT2)
OVH = 0
–5, –6*
IA, Leakage, Tip Open state
IB, Current, Tip Open state
VA, Active
RL = 0
B to GND
RA to BAT1 = 7 kΩ, RB to
GND = 100 Ω
Power Supply Rejection Ratio (Vripple = 100 mVrms), Active Normal State
VCC
VBAT1
VBAT2
VBAT1, Open loop, RLAC = 600 Ω
(Anti-sat region)
50 Hz to 3.4 kHz
50 Hz to 3.4 kHz
50 Hz to 3.4 kHz
50 Hz
100 Hz
200 Hz
500 Hz to 3.4 kHz
Effective internal resistance
CAS pin to GND
Device Power Dissipation
Open loop, Disconnect state
Open loop, Standby state
Open loop, Active state
OVH = 1
Open loop, Active state
OVH = 0
Off hook, Standby state
Off hook, Active state
RL = 600 Ω
RL = 250 Ω
RL = 700 Ω
Min
44.2
33.4
17.2
44.2
33.4
16.0
0.7 IL
18
40.3
39.8
37
18
–7.5
30
28
35
8
15
20
28
85
Typ
48.6
37.1
19.2
48.6
37.1
18.0
IL
30
95
52
41.7
41.7
39
1150
BAT2
+ 8.5
BAT2
+ 11.7
30
–5
45
50
50
14
22
29
40
170
35
50
150
550
1000
880
800
Max
54.0
40.8
21.2
54.0
40.8
20.0
1.3 IL
100
135
100
56
255
70
85
250
620
1300
1200
1000
Unit
mA
µA
mA
V
mV
V
µA
mA
V
dB
kΩ
mW
Note
4
4
3
4
4
4
9
SLIC Products
7
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