TS4956 datasheet(2/51 Pages) STMICROELECTRONICS

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Absolute maximum ratings & operating conditions

TS4956

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Absolute maximum ratings & operating conditions

Table 1.

Absolute maximum ratings (AMR)

Symbol

Parameter

Value

Unit

VCC

Supply voltage (1)

All voltage values are measured with respect to the ground pin.

Input voltage (2)

The magnitude of input signal must never exceed VCC + 0.3V / GND - 0.3V

GND to VCC

Toper

Operating free air temperature range

-40 to + 85

°C

Tstg

Storage temperature

-65 to +150

°C

Maximum junction temperature

150

°C

Rthja

Thermal resistance junction to ambient (3)

Device is protected in case of over temperature by a thermal shutdown activated at 150°C.

200

°C/W

Pdiss

Power dissipation

Internally limited(4)

Exceeding the power derating curves during a long period may involve abnormal operating conditions.

ESD

Susceptibility - human body model(5)

Human body model, 100 pF discharged through a 1.5 k

Ω resistor, into pin to VCC device

2kV

Susceptibility - machine model

150

Latch-up

Latch-up immunity

200

Lead temperature (soldering, 10sec)

260

°C

Table 2.

Operating conditions

Symbol

Parameter

Value

Unit

VCC

(1)

For proper functionality of I2C bus, VCC pins must not be grounded. ESD protection diodes ground data

and clock wires and cause dysfunction of I2C bus in this condition.

Supply voltage

2.7 to 5.5V

Load resistor

Speaker/BTL output (modes 1,2,7)

Headphone, MLO output (modes 3,4,5,6,)

≥8

≥16

Ω

Load capacitor

RL = 8Ω to 100Ω (Speaker/BTL output - modes 1,2,7)

RL = 16Ω to 100Ω (Headphone, MLO output - modes

3,4,5,6)

RL > 100Ω

500

400

100

Rthja

Flip-chip thermal resistance junction to ambient

90(2)

With heat sink surface 120mm2

°C/W

Table 3.

I²C electrical characteristics

Symbol

Parameter

Value

Unit

I2CVCC

I2C supply voltage(1)

Must be less or equal than power supply voltage VCC of the device

2.7V to 5.5V

VILl

Maximum low level input voltage on pins SDA, SCL

0.3 I2CVCC

VIH

Minimum high level input voltage

0.7 I2CVCC

IIN

Maximum input current (pins SDA, SCL), 0.4V < Vin < 4.5V

µA

FSCL

SCL maximum clock frequency

400

kHz

Vol

Max low level output voltage, SDA pin, Isink = 3mA

0.4

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