ST TS391H User Manual

TS391H

High temperature low power single voltage comparator

Features

■ Wide single supply voltage range or dual

supplies +2 V to +36 V or

■ Very low supply current (0.2 mA) independent

±1V to ±18 V

of supply voltage (1 mW/comparator at +5 V)

■ Low input bias current: 25 nA typ.

■ Low input offset current: ±5nA typ.

■ Low input offset voltage: ±1mV typ.

■ Input common-mode voltage range includes

ground

■ Low output saturation voltage: 250 mV typ.

(I

=4mA)

o

■ Differential input voltage range equal to the

supply voltage

■ TTL, DTL, ECL, CMOS compatible outputs

Description

The TS391H is 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.

Wafer form

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

March 2011 Doc ID 018583 Rev 1 1/8

www.st.com

8

Schematic diagram TS391H

1 Schematic diagram

Figure 1. Schematic diagram

V

CC

3.5μA 100μA 3.5μA 100μA

Non-inverting

input

V

O

Inverting input

V

CC

V

CC

Figure 2. Pad locations and coordinates

Year

E+

VCC-

E-

The coordinate of origin is at the centre of the die.

Line

VCC-

VCC+

Y

X

OUT

V

CC

Pad placementName

Pad dimensions

(opening)

All dimensions are in micrometers (µm).

AM06149

YXYX

100100-250+365OUT

100100-270-45VCC-

100100-250-400E-

100100+90-425VCC-

100100+275-395E+

100100+260+415VCC+

2/8 Doc ID 018583 Rev 1

TS391H Absolute maximum ratings and operating conditions

2 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

V

R

T

ESD

1. Short-circuits from the output to V maximum output current is approximately 20 mA independent of the magnitude of V

2. Short-circuits can cause excessive heating. These values are typical.

3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a

1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.

4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating.

5. Charged device model: all pins and package are charged together to the specified voltage and then discharged directly to ground through only one pin. This is done for all pins.

Table 2. Operating conditions

Supply voltage ±18 or 36 V

CC

Differential input voltage ±36 V

id

Input voltage -0.3 to +36 V

V

i

Output short-circuit to ground

T

Maximum junction temperature +160 °C

j

Thermal resistance junction to ambient

thja

Thermal resistance junction to case

thjc

Storage temperature range -65 to +150 °C

stg

Human body model (HBM)

(4)

Charged device model (CDM)

CC

(1)

(2)

(3)

(5)

+

can cause excessive heating and potential destruction. The

Infinite

250 °C/W

81 °C/W

1500

100

1000

+

.

CC

VMachine model (MM)

Symbol Parameter Value Unit

V

T

oper

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

Supply voltage

CC

Input common mode voltage range

T T

amb

min

= 25°C

≤ T

amb

≤ T

max

icm

(1)

Operating free-air temperature range -40 to +150 °C

2 to 36

±1 to ±18

0 to V

CC

+

-1.5

CC

+

-2

0 to V

+

-1.5 V, but either or both

Doc ID 018583 Rev 1 3/8

V

Electrical characteristics TS391H

3 Electrical characteristics

Table 3. V

+

= +5 V, V

CC

-

= 0 V, T

CC

= 25°C (unless otherwise specified)

amb

Symbol Parameter Test conditions Min. Typ. Max. Unit

15

550

25 250

0.2

0.5

6

16

2

250 400

0.1

1.3 µs

300 ns

9

150

400

0.5

1.25

V

CC

700

1

mV

nA

mA

+

mA

mV

(2)

+

-1.5 V).

(1)

T

≤ T

min

≤ T

T

min

T

≤ T

min

+

= 15 V, RL = 15 kΩ,

V

CC

= 1 to 11 V

V

o

+

= 5 V, no load

V

CC

+

V

= 30 V, no load

CC

(3)

= -1 V, VO = 1.5 V

V

id

≤ T

T

min

= 1 V, V

V

id

T

≤ T

min

V

= 1 V, V

id

T

≤ T

min

= 5.1 kΩ to V

L

V

= TTL, V

i

RL = 5.1 kΩ to V

≤ T

amb

max

≤ T

amb

max

≤ T

amb

max

50 200 V/mV

≤ T

amb

max

+

= VO = 30 V

CC

≤ T

amb

max

+

= VO = 30 V

CC

≤ T

amb

max

+

(4)

CC

= +1.4 V,

ref

+

CC

+

from 5 V to 30 V and over the full input common-

CC

V

Input offset voltage

io

Input offset current

I

io

I

Input bias current

ib

A

Large signal voltage gain

vd

I

Supply current

CC

V

Differential input voltage

id

I

V

Output sink current

sink

Low level output voltage

OL

I

High level output current

OH

tre Small signal response time R

t

Large signal response time

rel

1. At output switch point, VO ≈ 1.4 V, RS = 0 Ω with V mode range (0 V to V

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

3. 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 -0.3 V (or 0.3 V below the negative power supply, if used).

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

CC

nA

V

nA µA

4/8 Doc ID 018583 Rev 1

TS391H Electrical characteristics

Figure 3. Supply current vs. supply voltage Figure 4. Response time for various input

overdrives - negative transition

6

Input overdrive: 5 mV

5 4

20 mV

3

2 1

100 mV

5 V

Ω

e

5.1 k

I

e

o

0

Supply current (mA)

Supply voltage (V)

Input voltage (mV) / output voltage (V)

-50

-100

0

0 0.5 1 1.5 2

Time (μs)

T

amb

= +25˚C

Figure 5. Input current vs. supply voltage Figure 6. Response time for various input

overdrives - positive transition

6

Input overdrive: 100 mV

5

Input current (nA)

100

50

4

3

2 1 0

T

= +25˚C

amb

0

20 mV

5 mV

5 V

Ω

5.1 k

e

I

e

o

Supply voltage (V)

Figure 7. Output saturation voltage vs.

output current

Doc ID 018583 Rev 1 5/8

Input voltage (mV) / output voltage (V)

0 0.5 1 1.5 2

Time (μs)

Ordering information TS391H

4 Ordering information

Table 4. Order codes

Part number Temperature range Package Packaging Marking

(1)

JTS391HY_I6D1

1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent.

-40°C, +150°C Wafer form

6/8 Doc ID 018583 Rev 1

TS391H Revision history

5 Revision history

Table 5. Document revision history

Date Revision Changes

28-Mar-2011 1 Initial release.

Doc ID 018583 Rev 1 7/8

TS391H

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