ACS760ELFTR-20B-T(2013) データシートの表示（PDF） - Allegro MicroSystems

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ACS760ELFTR-20B-T
(Rev.:2013)

12 V High-Side Hot-Swap Hall Effect Based Current Monitor IC

Allegro MicroSystems 

ACS760ELF-20B 12 V High-Side Hot-Swap Hall Effect Based Current Monitor IC

OPERATING CHARACTERISTICS valid at VCC = 12 V, TA = 0°C to 85°C, unless otherwise noted

Characteristic

Symbol

Test Conditions

GENERAL ELECTRICAL CHARACTERISTICS

Linear Sensing Range

IP Current flows from IP+ to IP- pins

Primary Conductor Resistance

RPRIMARY TA = 25°C

Supply Voltage

VCC Voltage applied to IP+ pins

Supply Current

ICC

Undervoltage Lockout (UVLO)

VUVLOH VCC rising and CG pin current source turns on, EN pin = high

VUVLOL VCC falling and CG pin current source turns off, EN pin = high

UVLO Delay to Chip Enable/ Disable

tUVLOE Enabling, measured from rising VCC > VUVLOH to VGATE > 1 V

tUVLOD Disabling, from falling VCC < VUVLOL to VGATE < 1 V

FB+ to FB– Input Resistance

RFB TA = 25°C

CURRENT SENSE PERFORMANCE CHARACTERISTICS

VIOUT Analog Output Propagation

Time

tPROP

TA = 25°C, IP = 0 →20 A, capacitance from VIOUT to GND

= 100 pF

VIOUT Analog Output 10-90% Rise

Time

tr

TA = 25°C, IP = 0 →20 A, capacitance from VIOUT to GND

= 100 pF

VIOUT Analog Signal Bandwidth1

f3dB

–3 dB, Ip = 10 A peak-to-peak, TA = 25°C, no external device

filter, capacitance from VIOUT to GND = 100 pF

VIOUT Analog Signal Sensitivity

Sens

TA = 25°C

Over full ambient operating temperature range

TA = 25°C

Over full ambient operating temperature range

Sensitivity Slope Over Temperature

VIOUT Analog Noise Level

VIOUT Analog Nonlinearity

∆SensTA

TA = 0°C to 25°C

TA = 25°C to 85°C

VNOISE(PP) Mean peak-to-peak, TA = 25°C, 50 kHz external device filter

ELIN

Over full ambient operating temperature range and linear

sensing range

Zero Current Output Voltage

VIOUT(Q)

TA = 0°C to 55°C

TA = 0°C to 85°C

Zero Current Output Slope Over

Temperature

∆IOUT(Q)TA

TA = 0°C to 25°C

TA = 25°C to 85°C

Output Voltage Saturation Limits2

VOL TA = 25°C

VOH TA = 25°C

VIOUT Total Error % of IP

ETOT

TA = 25°C, IP = 20 A

TA = 0°C to 85°C, IP = 20 A

VIOUT DC Output Resistance

RVIOUT IVIOUT = 1 mA

CURRENT FAULT PERFORMANCE CHARACTERISTICS

Load Power Fault Threshold

240 V*A Fault Signal Delay

PF(th)

tPFH

TA = 25°C, measured from FAULT signal to VGATE < 1 V,

2.2 μF capacitance from OPDLY pin to GND, load step from

17 A to 23 A in 100 ns

tPFL

TA = 25°C, measured from FAULT signal to VGATE < 1 V,

OPDLY pin open, load step from 17 A to 23 A in 100 ns

240 V*A Fault Signal Delay Drift

∆tPF

Over full operating ambient temperature range, external

capacitor with ±5% tolerance

Internal –3 dB Filter Frequency for FB+

and FB– Pins

fFBFILT TA = 25°C

Min.

0

–

–

–

–

7.1

–

–

–

–

–

–

–

61.5

–

5.275

–

–

–

–

0.38

0.37

–

–

–

–

–

–

–

222

–

–

–15

–

Typ.

–

1.5

12

10

–

–

500

–

240

2

5

50

65

–

5.416

–

0.042

0.027

20

±0.5

–

0.4

–0.148

–0.057

0.25

3.6

±1.0

–

1

230

425

10

–

50

Max. Units

55

A

–

mΩ

–

V

12

mA

10.5

V

–

V

900

μs

2

μs

–

kΩ

–

μs

–

μs

–

kHz

–

67.5

–

5.558

–

–

–

mV/A

mV/A

mV/G

mV/G

mV/A/°C

mV/A/°C

mV

±2.0

%

0.42

V

0.43

V

– mV/°C

– mV/°C

–

V

–

V

–

%

±3.5

%

–

Ω

238

W

–

ms

12

μs

15

%

–

kHz

Continued on the next page…

Allegro MicroSystems, LLC

5

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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