TDF8546_SDS All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product short data sheet Rev. 8 — 27 September 2013 8 of 21
NXP Semiconductors
TDF8546
I
2
C-bus controlled 4 45 W best efficiency amplifier
7. Characteristics
Table 5. Characteristics
T
amb
=25
C; V
P
= 14.4 V; unless otherwise specified. Tested at T
amb
= 25
C; guaranteed for T
j
=
40
C to +150
C;
functionality is guaranteed for V
P
< 10 V unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Supply voltage behavior
V
P(oper)
operating supply voltage R
L
= 4 6 14.4 18 V
R
L
= 2 6 14.4 16 V
I
q
quiescent current no load - 260 350 mA
no load; V
P
= 7 V - 190 - mA
I
off
off-state current V
STB
= 0.4 V - 4 10 A
V
O
output voltage DC
amplifier on; high gain/low gain
mode
6.6 7.1 7.6 V
line driver mode; IB4[D2] = 0;
IB3[D5:D6] = 1
3.0 3.4 3.8 V
V
P(low)(mute)
low supply voltage mute rising supply voltage
IB4[D0] = 1 7.0 7.7 8.1 V
IB4[D0] = 0 5.4 5.7 6.2 V
falling supply voltage
IB4[D0] = 1 6.5 7.2 7.7 V
IB4[D0] = 0 5.2 5.5 5.9 V
V
P(low)(mute)
low supply voltage mute
hysteresis
IB4[D0] = 1 0.1 0.5 0.8 V
IB4[D0] = 0 0.1 0.3 0.7 V
V
P(ovp)pwarn
pre-warning overvoltage
protection supply voltage
rising supply voltage 15.2 16 16.9 V
falling supply voltage 14.4 15.2 16.2 V
hysteresis - 0.8 - V
V
th(ovp)
overvoltage protection
threshold voltage
rising supply voltage 18 20 22 V
V
POR
power-on reset voltage falling supply voltage - 3.1 4.5 V
V
O(offset)
output offset voltage amplifier on 75 0 +75 mV
amplifier mute 25 0 +25 mV
line driver mode 45 0 +45 mV
