4

ELECTRICAL CHARACTERISTICS

Note: The following electrical characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific

performance limits. But note that specifications are not guaranteed for parameters where no limit is given. The typical value however, is a good

indication of device performance. All voltages in the following tables are specified at 25°C which is generally taken as parametric norm.

SYMBO

L

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Supply Voltage

2.7

5.5

V

Power Up Threshold Voltage

VDD from Low to High

2.2

V

Power Down Threshold Voltage

VDD from High to Low

2.0

V

Quiescent Current

2.2

5

mA

2.0

4

mA

Shutdown Current

SHDN =0V

0.1

µA

SHDN Input High

1.3

V

SHDN Input Low

0.4

V

Output Power, Load=8Ω,

VDD=5V

THD+N=10%; f=1kHz

1.8

W

THD+N=1%; f=1kHz

1.4

Output Power, Load=4Ω,

VDD=5V

THD+N=10%; f=1kHz

3.0

W

THD+N=1%; f=1kHz

2.4

Gain

300kΩ / Ri

V/V

Output Resistance in Shutdown

Mode

SHDN =0V

2

kΩ

SHDN Input Resistance

300

kΩ

VREF Voltage

VDD/2

V

THD+N

Total Harmonic Distortion + Noise,

Load=8Ω

f=1kHz

0.05

%

f=1kHz

0.08

THD+N

Total Harmonic Distortion + Noise,

Load=4Ω

f=1kHz

0.06

f=1kHz

0.09

Output Voltage Noise

Inputs AC-Grounded

45

Output Offset Voltage

Inputs AC-Grounded

10

mV

η

Efficiency

RL=8Ω+33µH，f=1kHz

90

%

PSRR

Power Supply Rejection Ratio

f=217Hz

75

dB

CMRR

Common Mode Rejection Ratio

f=1kHz

70

dB

Startup Time

35

ms

PWM Switching Frequency

800

kHz

PWM Frequency Jittering Range

±24

kHz

Over-Current Protection Threshold

VDD=3.6V

1.6

A

Over-Temperature Threshold

160



C

Over-Temperature Hysteresis

30



C