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Fabricante

SC310

High-Side Current-Sense Amplifier with Low Impedance Voltage Output

Semtech Corporation 

SC310

POWER MANAGEMENT

Electrical Characteristics (Cont.)

VCS+ = 2.7V to 25V, VCC = 3V to 25V, VSENSE = 0, TA = TJ = -40°C to +125°C , unless otherwise specified

Parameter

Symbol

Conditions

Min

Typ

Total OUT Voltage Error

OUT High Voltage

3dB Bandwidth

GAIN

VCC - VOH

BW

AV

VSENSE= +100mV, VCC = 25V,

VCS+ = 25V, TA = 125°C

V = +6.25mV, V =

SENSE

CC

12V, VCS+ = 12V, -40°C ≤

TA ≤ 125°C

-5°C ≤ TA ≤ +125°C

SC310A, VSENSE = +100mV

SC310B, VSENSE = +100mV

SC310C, VSENSE = +100mV

SC310A

SC310B

1

+/- 7.5

2

1.4

0.9

20

50

SC310C

100

Gain Accuracy

V = +100mV,

SENSE

SC310A/B/C

OUT Output Resistance (1)

R

V = +16mV

60

OUT

SENSE

Power-Supply Rejection

PSRR

VSENSE= 16mV

VCS+ > +2.7V

60

70

OUT Settling Time to 1% of

the Final Value

VCC = +12V

VSENSE=

2

VCS+ = +12V +6.25mV

C = LOAD 5pF

to

+100mV

VSENSE=

2

+100mV

to

+6.25mV

Power-Up Time to 1% of the

Final Value (2)

VSENSE= +100 mV,

50

C = LOAD 5pF,VCC = +12V

VCS+ = +12V

Input bias current for SHDN

I

SHDN

V = +5V

SHDN

VSHDN Threshold (device on)

VSHDN_TH_ON

3V ≤ Vcc ≤ 25V

VSHDN Threshold (device off)

VSHDN_TH_OFF

3V ≤ Vcc ≤ 25V

2

Supply Current for SHDN

ICC

Vcc = 12V, VSHDN = +5V

11

Note (1): SC310 has a low impedence output. However the maximum output drive capability is limited to 500uA

Note (2): Defined with respect to Shutdown signal. Time taken for output to go high as VSHDN switches from 5V to 0V

Max

4.75

1.7

4.0

7

350

Units

%

V

MHz

V/V

%

Ω

dB

μS

μS

μA

mV

V

μA

© 2005 Semtech Corp.

3

www.semtech.com

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