TSM101ACDT Datasheet TSM101ACD, TSM101AID, TSM101ACDT | P1-P3

1/13

■ 1.24V SERIES VOLTAGE REFERENCE

WITH 10mA OUTPUT CURRENT AND 1%

PRECISION (TSM101A)

■ TWO OPERATIONAL AMPLIFIERS WITH

ORED OUTPUT AND 1MHZ GAIN BAND-

WIDTH PRODUCT

■ BUILT-IN CURRENT GENERATOR WITH

ENABLE/DISABLE FUNCTION

■ 4.5 TO 32V SUPPLY VOLTAGE RANGE

■ SO8 AND DIP8 PACKAGES

DESCRIPTION

The TSM101/TSM101A integrated circuit incorpo-

rates a high stability series band gap voltage refer-

ence, two ORed operational amplifiers and a cur-

rent source.

This IC compares the DC voltage and the current

level at the output of a switching power supply to

an internal reference. It provides a feedback

through an optocoupler to the PWM controller IC

in the primary side.

The controlled current generator can be used to

modify the level of current limitation by offsetting

the information coming from the current sensing

resistor.

APPLICATIONS

This circuit is designed to be used in battery

chargers with a constant voltage and a limited out-

put current.

It can be used in every types of application requir-

ing a precision voltage regulation and current limi-

tation.

Other applications include voltage supervisors,

over voltage protection...

ORDER CODE

N = Dual in Line Package (DIP)

D = Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)

Part Number

Temperature

Range

Package

ND

TSM101C/AC -20°C, +80°C

••

TSM101I/AI -40°C, +105°C

••

D

SO8

(Plastic Micropackage)

N

DIP8

(Plastic Package)

1

2

3

4

8

5

6

7

Vref

TSM101/A

VOLTAGE AND CURRENT CONTROLLER

June 2001

TSM101/A

2/13

ABSOLUTE MAXIMUM RATINGS

OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

T

amb

= 25°C, V

CC

= 15V (unless otherwise specified)

OPERATIONAL AMPLIFIER: TSM101C/I/AC/AI

Symbol Parameter Value Unit

V

CC

DC supply Voltage

1)

1. All voltages values, except differential voltage are with respect to network ground terminal.

36 V

I

out

Output Current

2)

2. The voltage reference is not protected against permanent short circuit.

20 mA

P

d

Power Dissipation 200 mW

V

in Input Voltage

3)

3. The magnitude of input and output voltages must never exceed -0.3V or VCC -1.5V.

-0.3, V

CC

-1.5

V

I

out

Input Current ±1 mA

T

stg

Storage Temperature -40 to +125 °C

T

j

Maximum Junction Temperature 150 °C

T

thja

Thermal Resistante Junction to Ambiant 130 to 200 °C/W

Symbol Parameter Value Unit

V

CC

Supply Voltage 4.5 to 32 V

T

oper

Operating Free Air Temperature Range

T

max

to T

min

Symbol Parameter Min. Typ. Max. Unit

I

CC

Total Supply Current

V

CC

= 1.5V

2

mA

V

i

Input Voltage Range 0

V

CC

- 1.5V

V

io

Input Offset Voltage

25°C

T

min.

≤

T

amb

≤

T

max.

-5

-7

15

7

mV

I

ib

Input Bias Current

@ V

in

=1.2V on pin and V

in

=0V on pin 5

25°C

T

min.

≤

T

amb

≤

T

max.

-700

-1000

-300 0

0

nA

I

sink

Output Sink Current, V

ol

=2.5V

25°C

T

min.

≤

T

amb

≤

T

max.

8

15

mA

A

vo

Large Signal Voltage Gain

R

L

=2k

Ω

T

min.

≤

T

amb

≤

T

max.

15

V/m

V

SVR

Supply Voltage Rejection Ratio

T

min.

≤

T

amb

≤

T

max.

65 90

dB

CMR

Common Mode Rejection Ratio

T

min.

≤

T

amb

≤

T

max.

80

dB

GBP

Gain Bandwith Product

V

cc

=15V, F = 100kHz

V

in

= 10mV, R

L

= 2k

Ω

, C

L

= 100pF

1 MHz

I

o

Output Leakage Current

25°C

T

min.

≤

T

amb

≤

T

max.

2

7

µ

A

TSM101/A

3/13

ELECTRICAL CHARACTERISTICS

T

amb

= 25°C, V

CC

= 15V (unless otherwise specified)

VOLTAGE REFERENCE : TSM101

VOLTAGE REFERENCE : TSM101A

CURRENT GENERATOR: TSM101, TSM101A

Symbol Parameter

TSM101C TSM101I

Unit

Min. Typ. Max. Min. Typ. Max.

V

ref

Reference Voltage

I

out

= 1mA, Tamb = 25°C

1.21 1.24 1.27 1.21 1.24 1.27

V

K

vt

Temperature Stability

T

min

≤

Tamb

≤

Tmax 30 100 35 120

ppm/°C

R

eglo

Load Regulation

1

<

I

out

<

10mA

515 515

mV

R

egli

Line Regulation

5

<

V

in

<

32V

3.5 10 3.5 10

mV

Symbol Parameter

TSM101AC TSM101AI

Unit

Min. Typ. Max. Min. Typ. Max.

V

ref

Reference Voltage

I

out

= 1mA, Tamb = 25°C

1.227 1.24 1.252 1.227 1.24 1.252

V

K

vt

Temperature Stability

T

min

≤

Tamb

≤

Tmax 30 100 35 120

ppm/°C

R

eglo

Load Regulation

1

<

I

out

<

10mA

515 515

mV

R

egli

Line Regulation

5

<

V

in

<

32V

3.5 10 3.5 10

mV

Symbol Parameter

TSM101C/AC TSM101I/AI

Unit

Min. Typ. Max. Min. Typ. Max.

I

o

Current Source 1.4 1.4 mA

K

cgt

Temperature Stability

T

min

≤

Tamb

≤

Tmax 500 600

ppm/°C

C

glir

Line Regulation

4.5

<

V

cc

<

32V

0.003 0.03 0.003 0.03

mA

V

csen

Voltage at the enable pin to have

Io = 1.4mA

T

min

≤

Tamb

≤

Tmax 0.6 0.6

V

csdis

Voltage at the enable pin to have

Io = 0mA

T

min

≤

Tamb

≤

Tmax 22

V

I

csen

Input Current on the C

sen

T

min

≤

Tamb

≤

Tmax

30 30

µ

A

I

csleak

Leakage Current

V

cs

=

2V

T

min

≤

Tamb

≤

Tmax

0.5 2 0.5 2

µ

A

TSM101ACDT

TSM101ACDT

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