TS391A中文资料

UTC TS391/A LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO. LTD

1

QW-R104-003,A

LOW POWER SINGLE VOLTAGE COMPARATOR

DESCRIPTION

The UTC TS391/A consist of a low power voltage

comparator designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.

This comparator also a unique characteristic in that the input common-mode voltage range includes ground even though operated from a single power supply voltage.

FEATURES

*Wide single supply voltage range or dual supplies +2V to +34V or ±1V to ±18V

*Very low supply current (0.2mA) independent of supply voltage (1 mW /comparator at +5V) *Low input bias current: 25nA typ. *Low input offset current: ±5nA typ. *Low input offset voltage: ±1mV typ

*Input common-mode voltage range includes ground. *Low output saturation voltage: 250mV typ.(Io=4mA). *Differential input voltage range equal to the supply voltage.

MARKING

Part Number Marking

TS391 S1

TS391A SA

PIN CONNECTIONS (top view)

TS391 TS391A

Output

IN(-)IN(+)

Vcc

GND

IN(+)GND IN(-)Vcc

Output

UTC TS391/A LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO. LTD

2

QW-R104-003,A

BLOCK DIAGRAM

Vcc +

IN(+)

Output

IN(-)

GND

ABSOLUTE MAXIMUM RATINGS

PARAMETER SYMBOL RATING UNIT

Supply Voltage Vcc ±18 or 36 V Differential Input Voltage Vid ±36 V Input Voltage Vi -0.3 ~ +36 V

Output Short-circuit to Ground 1)

Infinite Power Dissipation 2) Pd 500 mW

Operating Free Air Temperature Range Topr

-40 ~ +125 ℃ Storage Temperature Range Tstg

-65 ~ +150 ℃ 1. Short-circuit from the output to Vcc

can cause excessive heating and eventual destruction.The maximum output

current is approwimately 20mA,independent of the magnitude of Vcc. 2. Tj =

150℃, Tamb=25℃ with Rthja=250℃/W for SOT25 Package.

UTC TS391/A LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO. LTD

3

QW-R104-003,A

ELECTRICAL CHARACTERISTICS

Vcc=5.0V, All voltage referenced to GND ,Tamb=25°C (unless otherwise specified)

1.At output switch point, Vo=1.4V,Rs=0Ω with Vcc from 5V to 30V and over the full input common-mode range(0V to Vcc 1.5V).

2.The direction of the input current is out of the IC due to the PN P input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference or input lines.

3.The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V.The upper end of the common-mode voltage range is Vcc+ -1.5V,but either or both inputs can go to +30V without damage.

4.Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range the comparator will provide a proper output state.

The low input voltage state must not be less than –0.3V(or 0.3V below the negative power supply, if used).

5.The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be obtained.

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS Input Offset Voltage 1) Vio Tamb=+25℃

Tmin.≤Tamb ≤Tmax. 1 5

9

mV

Input Bias Current 2) Iib Tamb=+25℃

Tmin.≤Tamb ≤Tmax. 25 250

400

nA

Input Offset Current Iio Tamb=+25℃

Tmin.≤Tamb ≤Tmax. 5 50

150

nA

Large Signal Voltage Gain Gv Vcc=15V,R L =15k,Vo=1 to 11V 50 200 V/mV Supply Current Icc Vcc=5V,no load Vcc=30V,no load 0.2 0.5 0.5

1.25 mA

Input Common Mode Voltage Range 3) Vicm Tamb=+25℃

Tmin.≤Tamb ≤Tmax. 0

Vcc -1.5

Vcc -2

mV

Differential Input Voltage 4)

Vid

Vcc mV

Output sink current

Isink

Vid =-1V,Vo =

1.5V 6 16 mA

Low Level Output Voltage V OL Vid=1V,Vcc=Vo=30V Tamb=+25℃ Tmin.≤Tamb ≤Tmax. 250 400 700

mV High Level Output Current I OH Vid=1V,Vcc=Vo=30V Tamb=+25℃ Tmin.≤Tamb ≤Tmax. 0.1 1

nA μA Response Time

tre R L =5.1k Ω to Vcc 5)

1.3 μs Large Signal Response Time t rel Vi=TTL,Vref=+1.4V,R L =5.1k Ω to Vcc 300 ns

UTC TS391/A LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO. LTD

4

QW-R104-003,A

TYPICAL PERFORMANCE CHARACTERISTICS

Supply current vs supply voltage

S U P P L Y C U R R E N T (m A )

0.50.2

Response time for various input overdrives - negative transition

I N P U T C U R R E N T (n A )

SUPPLY VOLTAGE (V)80

60

40

20

0.40.30.1TIME(μS)

Output saturation voltage vs output current

S A T U R A T I O N V O L T A G E (V )

Output sink current (mA)

10

10

10

10

10

10

10

-1

10010

1

10

2

UTC TS391/A LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO. LTD 5

QW-R104-003,A