ST TSM1014 User Manual

Low Consumption Voltage and Current

Controller for Battery Chargers and Adaptors

■ Constant voltage and constant current

control

■ Low con sumpti on

■ Low voltage operation

■ Low external component count

■ Curre nt sink ou tput stage

■ Easy compensation

■ High ac mains voltage rejection

■ 2kV ESD protection (HBM)

Voltage Reference:

■ Fixed output voltage reference 1.25V

■ 0.5% and 1% Voltage precision

DESCRIPTION

TSM1014

D

SO-8

(Plastic Package)

S

MiniSO-8

(Plastic Micropackage)

TSM1014 is a highly integrated solution for SMPS

PIN CONNECTIONS (top view)

applications requiring CV (cons tant voltage) and
CC (constant current) mode.

TSM1014 integrates one voltage reference and

1

VccVref

8

two operational amplifiers.
The voltage reference combined with one

operational amplifier makes it an ideal voltage
controller. The other operational amplifier,
combined with few external resistors and the

Cc-

3

Cc+

45

Cv- Cv Out

Cc Out 7

Gnd

6

2

voltage reference, can be used as a current
limiter.

APPLICATIONS

■ Adapters

■ Battery chargers

ORDER CODES

Part Number Temperature Range Package Packaging VRef (%) Marking

TSM1014ID
TSM1014IDT Tape & Reel 1 M1014
TSM1014AID Tube 0.5 M1014A
TSM1014AIDT Tape & Reel 0.5 M1014A
TSM1014IST
TSM1014AIST Tape & Reel 0.5 M809

-40 to 105°C

SO-8

mini SO-8

Tube 1 M1014

Tape & Reel 1 M808

July 2004 Revision 1 1/10

TSM1014 Pin Descriptions

1 Pin Descriptions

The table below gives the pin descriptions for both SO8 & MiniSO8 packages.

Name Pin # Type Function

VRef 1 Analog Output Voltage Reference
CC- 2 Analog Input Input pin of the operational amplifier
CC+ 3 Analog Input Input pin of the operational amplifier
CV- 4 Analog Input Input pin of the operational amplifier
CVOUT 5 Analog Output Output of the operational amplifier
Gnd 6 Power Supply Ground Line. 0V Reference For All Voltages
CCOUT 7 Analog Output Output of the operational amplifier
Vcc 8 Power Supply Power supply line.

2 Absolute Maximum Ratings

Symbol DC Supply Voltage Value Unit

Vcc DC Supply Voltage (50mA =< Icc) -0.3V to Vz V

Vi Input Voltage -0.3 to Vcc V

PT Power dissipation W

Toper Operational temperature 0 to 105 °C

Tstg Storage temperature -55 to 150 °C

Tj Junction temperature 150 °C

Iref Voltage reference output current 2.5 mA

ESD Electrostatic Discharge 2 kV
Rthja Thermal Resistance Junction to Ambient Mini SO8 package 180 °C/W
Rthja Thermal Resistance Junction to Ambient SO8 package 175 °C/W

3 Operating Cond itions

Symbol Parameter Value Unit

Vcc DC Supply Conditions 4.5 to Vz V

Toper Operational temperature -40 to 105 °C

2/10

Electrical Characteristics TSM1014

4 Electrical Characteristics

Tamb = 25°C and Vcc = +18V (unless otherwise specified)

Symbol Parameter Test Condition Min Typ Max Unit

Total Current Consumption

Total Supply Current, excluding current

Icc

in Voltage Reference

1

.

Vz Vcc clamp voltage Icc = 50mA 28 V

Operator 1: Op-amp with non-inverting input connected to the internal VRef

Input Offset Voltage + Voltage reference
TSM1014

VRef+V

io

TSM1014A

Vcc = 18V, no load
Tmin. < Tamb < Tmax.

T

= 25°C

amb

T

≤ T

amb

= 25°C
≤ T

amb

≤ T

≤ T

max.

max.

min.

T

amb

T

min.

100 180 µA

1.251

1.25

1.266

1.279

1.258

1.267

V

DV

Input Offset Voltage Drift

io

7

µV/°C

Operator 2

Input Offset Voltage

V

io

DV

I

ib

SVR

TSM1014
TSM1014A

Input Offset Voltage Drift

io

Input Bias Current T

Supply Voltage Rejection Ration V

T

= 25°C

amb

T

≤ T

min.

T
T

T

amb

= 25°C

amb

≤ T

min.

amb

= 25°C

amb

≤ T

min.

amb

= 4.5V to 28V

CC

≤ T

≤ T

≤ T

max.

max.

max.

1

0.5
7

20
50

4
5
2
3

150
200

mV

µV/°C

nA

65 100 dB

Vicm Input Common Mode Voltage Range 0 Vcc-1.5 V

CMR

Common Mode Rejection Ratio T

T

amb
min.

= 25°C
≤ T

amb

≤ T

max.

70
60

85

dB

Output stage

Gm

Vol

Ios

Transconduction Gain. Sink Current

2

Only
Low output voltage at 5 mA sinking cur-

rent
Output Short Circuit Current. Output to

(Vcc-0.6V). Sink Current Only

T
T

T

T
T

amb
min.

min.

amb
min.

= 25°C
≤ T

amb

≤ T

amb

= 25°C
≤ T

amb

≤ T
≤ T

≤ T

max.
max.

max.

0.5

6
5

1
1

mA/mV

250 400 mV

10

mA

Voltage reference

Reference Input Voltage
TSM1014 1% precision

V

Ref

TSM1014A 0.5% precision

∆V

RegLine

RegLoad

1) Test conditions: pin 2 and 6 connected t o GND, pin 4 and 5 co nnected to 1.2 5V , pin 3 connected to 200mV.

2) The curr ent depends on the voltage dif f erence between the negati ve and the positive inputs of the amplifier. If the voltage on the minus
input is 1mV higher than the positive amplifier, the sinking current at the output OUT will be increased by Gm*1mA.

Reference Input Voltage Deviation Over

Ref

Temperature Range
Reference input voltage deviation over

Vcc range.
Reference input voltage deviation over

output current.

T

= 25°C

amb

T

≤ T

amb

= 25°C
≤ T

amb

≤ T

amb

≤ T

≤ T
≤ T

max.

max.
max.

min.

T

amb

T

min.

T

min.

Iload = 1mA

Vcc = 18V,
0 < Iload < 2.5mA

1.238

1.225

1.244

1.237

1.25

1.262

1.273

1.25

1.256

1.261

20 30 mV

20 mV

10 mV

V

3/10