TCB702FNG
CDMOS Linear Integrated Circuit Silicon Monolithic
TCB702FNG
Maximum Power 45 W BTL × 4-ch Audio Power IC with Built-in Self-Diagnostics
1. Outline
The TCB702FNG 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
Weight: 1.28 g (typ.)
Built-in self-diagnostics allows the data reception and control through I2C bus.
The maximum output power POUT is 45 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.
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
V
= 15.2 V, Po max
CC
Built-in cross output connection detection (Output short detection
45
Square Wave input
between different voltage)
V
V
= 14.4 V, Po max
40
25
23
CC
CC
Built-in various mute functions (at low voltage, standby ON / OFF,
W
%
fast, and I2C control)
= 14.4 V, THD = 10%
6 V operations (Engine idle reduction capability)
Built-in hardware standby function
THD = 10%
Built-in various protection circuits (thermal shut down, over voltage,
Total harmonic distortion (THD)
= 0.4 W 0.02
short to VCC, short to GND, and output to output short)
P
OUT
The short-circuit protection can operate per channel.
Control function via I2C bus
Output noise voltage (V ) (Rg = 0 Ω)
NO
Standby ON / OFF operation
Front / Rear separate mute operation and fast mute operation
setting
BW = 20 Hz to 20 kHz
60
µVrms
Operating Supply voltage range (V (opr))
CC
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
Amplifier circuit (R = 4 Ω)
L
6 to 18
7 to 18
V
Self-diagnostics circuit
V
Setting and startup of self-diagnostics
Setting parameters and startup of current detection
Setting rare short propriety
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
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