Preliminary Datasheet TCB702FNG (Toshiba)

Preliminary
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 =0.8W) 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 45 W using a pure complementary Higher Weight: 1.28 g (typ.) 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)
Table 3.1 Typical characteristics
• Built-in fulltime output offset detection
(Note)
• Built-in +B low voltage detection (6 modes by I2C control) • Built-in standalone control mode (power ON / OFF and a mute Condition Typ. Unit control can be controlled without I2C BUS) •
Output power
(POUT) Built-in output clip detection • V Built-in cross output connection detection (Output short detection CC = 15.2 V, Po max 45 Square Wave input between different voltage) • Built-in various mute functions (at low voltage, standby ON / OFF, VCC = 14.4 V, Po max 40 W fast, and I2C control) V • CC = 14.4 V, THD = 10% 25 6 V operations (Engine idle reduction capability) • Built-in hardware standby function THD = 10% 23 • Built-in various protection circuits (thermal shut down, over voltage,
Total harmonic distortion
(THD) short to VCC, short to GND, and output to output short)  POUT = 0.4 W 0.02 % The short-circuit protection can operate per channel. • Control function via I2C bus
Output noise voltage
(VNO) (Rg = 0 Ω)  Standby ON / OFF operation  BW = 20 Hz to 20 kHz 60 µVrms Front / Rear separate mute operation and fast mute operation setting
Operating Supply voltage range
(VCC (opr))  Changing the time constants of mute (30 ms / 15 ms (typ.))  Amplifier circuit (R Front / Rear separate 2-step gain adjustment (26 dB / 16 dB) L = 4 Ω) 6 to 18 V  Changing Power amplifier mode / Line driver mode Self-diagnostics circuit 7 to 18 V  Changing clip detection (THD = 2% / 5 % / 10%)  Setting of output offset detection operation  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.
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