L7250 datasheet(8/46 Pages) STMICROELECTRONICS

8 / 46 page

L7250

8/46

err _clamp

high

High output (clamp) voltage

Isource = 1mA, referred to Vref25

TBD

VCM OUTPUT DRIVERS

PWR_Gain Power amplifier differential gain.

Io = ±1A, Rload = 8Ω

V/V

Rds(on)

Total output ON resistance

(Source + Sink)

@ 125°C, I=2A

Ω

PWR_Lkg

Output leakage current

600

DiodeFw Clamp diode forward voltage

If = 2A

0.6

1.2

THD

Total Harmonic Distortion

characterized no tested

PWR_Slew

VCMN or VCMP slew rate

RL = 8 ohms

V/us

PWR_B

and

Power Amp -3dB Bandwidth

Driving ERROUT = VDACREF,

Guaranteed by design

250

500

kHz

Icross

Static Shoot-through current

Guaranteed by design

VCM CURRENT CONTROL LOOP STATIC AND DYNAMIC CHARACTERISTICS

IVCMoff

Total offset current

Rs=0.2

-75

DIVCMoff

Total offset current drift

temperature coefficient

Guaranteed by design

mA/oC

Gm_psrr Gm loop VSRR of VCV

-1

mA/V

VCM LINEAR DAC

DAC_res Resolution

bit

DAC_out Full Scale Output Voltage

wrt VDACREF

0.96

1.04

DAC_off

Mid-Scale Error

wrt VDACREF

-12

DAC_DNL Differential Non linearity

Guaranteed Monotonicity

±1

LSB

DAC_INL Integral Non Linearity

±64

LSB

DAC_Co

nvT

Conversion time

90% from 3FFFh to 0020h

µs

VCM LOAD/UNLOAD

ADC

ADC_res

resolution

bit

ADC_DNL Differential Non Linearity

LSB

ADC_INL

Integral Non Linearity

LSB

ADC_Co

nvT

Conversion time

ADC

Clock

cycles

ELECTRICAL CHARACTERISTCS (continued)

POWER SUPPLY [VCC5 & VCV] VCC5 = 5V ±10%, VCV = 12V ±10%. Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

L7250 数据表(PDF) 8 Page - STMicroelectronics

L7250 数据表(HTML) 8 Page - STMicroelectronics

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L7250 数据表(PDF) 8 Page - STMicroelectronics

L7250 数据表(HTML) 8 Page - STMicroelectronics

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