LM48520, LM48520TLBD

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SNAS367C – FEBRUARY 2008 – REVISED APRIL 2013

Pin Descriptions

Pin Designator

Pin Name

Pin Function

A1

VDD

Power Supply

Regulator Feedback Input. Connect BstFB to an external resistive voltage divider to

A2

BstFB

set the boost output voltage.

A3

Soft Start

Soft start capacitor

A4

SW_GND

Booster ground

A5

SW

Drain of the Internal FET switch

B1

INR+

Non-inverting right channel input

B2

INR-

Inverting right channel input

B3

FB_GND

Ground return for R1, R2 resistor divider

B4

INL-

Inverting left channel input

B5

INL+

Non-inverting left channel input

C1

V1

Amplifier supply voltage. Connect to PV1.

C2

BstSD

Regulator active low shutdown

C3

GND

Ground

C4

Gain0

Gain setting input 0

C5

PV1

Amplifier H-bridge power supply. Connect to V1.

D1

AmpSD

Amplifier active low shutdown

D2

OUTR+

Non-inverting right channel output

D3

NC

No connect

D4

OUTL+

Non-inverting left channel output

D5

Gain1

Gain setting input 1

E1

VLimit

Set to control output clipping level

E2

OUTR-

Inverting right channel output

E3

PGND

Power ground

E4

OUTL-

Inverting left channel output

E5

NC

No connect

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1) (2)

Supply Voltage (VDD, V1)

6V

Storage Temperature

−65°C to +150°C

Input Voltage

−0.3V to VDD + 0.3V

Power Dissipation (3)

Internally limited

ESD Susceptibility (4)

2000V

ESD Susceptibility (5)

200V

Junction Temperature

150°C

Thermal Resistance

θJA (YZR0025AAA)

40.5 °C/W

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(2)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and

specifications.

(3)

The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature,

TA. The maximum allowable power dissipation is PDMAX = (TJMAX − TA) / θJA or the given in Absolute Maximum Ratings, whichever is

lower.

(4)

Human body model, 100pF discharged through a 1.5k

Ω resistor.

(5)

Machine Model, 220pF–240pF discharged through all pins.

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