U4074B Datasheet, PDF (4/6 Pages) TEMIC Semiconductors – Tone Ringer Interface

U4074B
Absolute Maximum Ratings
Reference point, Pin 13 ( 15 ), unless otherwise specified, T_amb = 25°C
Parameters
Supply current
Pin 1, 14 ( 1, 16 )
Output current
Pin 11, 12 ( 13,14)
Junction Temperature
Ambient temperature
Storage temperature
Power dissipation
T_amb = 60°C
DIP14
SO16
Symbol
Value
Unit
I_s
50
mA
I₀
50
mA
T_j
125
°C
T_amb
–25 to + 60
°C
T_stg
–40 to + 125
°C
P_tot
860
mW
P_tot
400
mW
Thermal Resistances
Junction ambient
Parameters
DIP14
SO16
Symbol
R_thJA
Value
75
160
Unit
K/W
K/W
Electrical Characteristics
T_amb = –10 to 60°C, reference point is Pin 13 ( 15 ), unless otherwise specified
Parameters
Test Conditions / Pins Symbol Min.
Typ.
Max.
Unit
Current consumption
Pin 1, 14 (1, 16)
O₁ = O₂ = open
I
A1 = A0 = 0, V_B = 15 V
I_DD = –300 mA,
Pin 2 (3) open
1.1
1.4
mA
Input voltage
Audio frequency
impedance
Output on resistance
Pin 1, 14 (1, 16)
on threshold
off threshold
f = 300 to 3400 Hz,
" ^{Va,b = 1.5 Vrms}
I_{(O1, O2)} = 20 mA
V
9.5
10.5
11.5
V
4.5
5.5
6.5
V
R
200
kW
R_on
400
W
Internal voltage limitation I_Z = 1 mA (Pin 2)
V_Z
25
27
30
V
Supply voltage for
microcomputer
Leakage current
Diode load current
0.5 mA > I_DD < 1.5 mA
3.15
3.5
3.85
V
v _{Ȁ Ȁ} V_a , V_b , V_B 3.5 V
I_2f
I_A0
I_A1
I
v V_A1, V_A0, V_Melody 6 V
v v 5.5 V V_DD 6 V
v v 0 V V_DD 5.5 V
I_DD
10
mA
100
mA
10
80
mA
4 (6)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 06-May-96