TCB701FNG
CDMOS Linear Integrated Circuit Silicon Monolithic
TCB701FNG
Maximum Power 49 W BTL × 4-ch Audio Power IC with Built-in Self-Diagnostics
1. Outline
The TCB701FNG is a power IC with built-in linear high efficiency 4-channel BTL
amplifier developed for car audio applications.
The amplifier system uses our original high efficiency, class TB (Tied BTL), which
enables saving heat generation to 1/5 (at POUT =0.8 W) as compared with
conventional class AB amplifier, and realizes reducing internal temperature rise
of car audio applications. The power loss with output power equivalent to a class
D system (digital amplifier) in about 4 W or less is acquired. Additionally, this
product can realize high efficiency system without peripheral parts (which are
used for LPF and EMI protection) of class D system.
P-HSSOP36-1116-0.65-001
Built-in self-diagnostics allows the data reception and control through I2C bus.
The maximum output power POUT is 49 W using a pure complementary Higher
P-ch and Lower N-ch DMOS output stage. It also includes a standby function, a
mute function, and each protection circuit necessary for car audio.
Weight: 1.28 g (typ.)
2. Applications
Power IC for car audio applications.
3. Features
Our original high efficiency amplifier; class TB(Tied BTL)
Built-in fulltime output offset detection
Built-in +B low voltage detection (6 modes by I2C control)
Table 3.1 Typical characteristics
(Note)
Condition
Output power (P
Typ.
Unit
Built-in standalone control mode (power ON / OFF and a mute
control can be controlled without I2C BUS)
Built-in output clip detection
)
OUT
49
V
V
V
= 15.2 V, Po max
= 14.4 V, Po max
= 14.4 V, THD = 10%
CC
CC
CC
Built-in cross output connection detection (Output short detection
45
between different voltage)
W
Built-in various mute functions (at low voltage, standby ON / OFF,
27
fast, and I2C control)
THD = 10%
Output power (P
25
6 V operations (Engine idle reduction capability)
Built-in hardware standby function
) (R = 2 Ω)
L
OUT
Built-in various protection circuits (thermal shut down, over voltage,
V
V
= 14.4 V, Po max
70
45
CC
CC
short to VCC, short to GND, and output to output short)
W
%
= 14.4 V, THD = 10%
The short-circuit protection can operate per channel.
Control function via I2C bus
Total harmonic distortion (THD)
= 0.4 W 0.01
Standby ON / OFF operation
Front / Rear separate mute operation and fast mute operation
setting
P
OUT
Output noise voltage (V ) (Rg = 600 Ω)
NO
Changing the time constants of mute (30 ms / 15 ms (typ.))
Front / Rear separate 2-step gain adjustment (26 dB / 16 dB)
Changing Power amplifier mode / Line driver mode
Changing clip detection (THD = 2% / 5 % / 10%)
Setting of output offset detection operation
BW = DINAUDIO
60
µVrms
Operating Supply voltage range (V (opr))
CC
Amplifier circuit (R = 4 Ω)
6 to 18
6 to 16
L
V
Amplifier circuit (R = 2 Ω)
L
Setting and startup of self-diagnostics
Setting parameters and startup of current detection
Setting rare short propriety
Self-diagnostics circuit
7 to 18
V
Information capable to acquire via I2C bus
Each output detection per channel (irregular connection, offset,
and current detection for tweeter)
Information which is immediately before startup of over
temperature protection, and acquisition of each setting state
Note: Typical test conditions: VCC = 13.2 V, f = 1 kHz, RL = 4 Ω, GV = 26 dB, Ta = 25°C; unless otherwise specified.
Note: Since static electricity serge intensity has a weak part according to conditions, please ask us with the detailed
conditions of a static electricity serge examination.
© 2018-2020
Toshiba Electronic Devices & Storage Corporation
1
2020-09-25