TSM1011 STMicroelectronics, TSM1011 Datasheet

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TSM1011

Manufacturer Part Number
TSM1011
Description
Constant Voltage and Constant Current Controller
Manufacturer
STMicroelectronics
Datasheet

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TSM1011
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TSM1011A
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ST
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TSM1011AID
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November 2003
DESCRIPTION
The TSM1011 is a highly integrated solution for
SMPS
voltage) and CC (constant current) modes.
The TSM1011 integrates one voltage reference
and two operational amplifiers (with ORed outputs
—common collectors).
The voltage reference combined with one
operational amplifier makes it an ideal voltage
controller.
combined with few external resistors and the
voltage reference, can be used as a current
limiter.
APPLICATIONS
ORDER CODE
D = Small Outline Package (SO) - also available in Tape & Reel (DT
ST = Small Outline Package (MiniSO8) only available in Tape & Reel
TSM1011ID
TSM1011AID
TSM1011IS
TSM1011AIS
Part Number
Constant voltage and constant current
control
Low voltage operation
Low external component count
Current sink output stage
Easy compensation
2kV ESD protection
VOLTAGE REFERENCE:
l
l
Adapters
Battery chargers
Fixed output voltage reference
0.5% and 1% voltage precision
applications
2.545V
The
Temperature
0 to 105°C
0 to 105°C
0 to 105°C
0 to 105°C
Range
other
Constant Voltage and Constant Current Controller
requiring
operational
Package
S
CV
D
(constant
amplifier,
Marking
M1011A
M1011
M802
M803
Revision C
for Battery Chargers and Adapters
PIN CONNECTIONS (top view)
(Plastic Micropackage)
1
2
3
4
(Plastic Package)
Vref
Cc-
Cc+
Cv-
MiniSO-8
SO-8
D
D
Vcc
Out
Gnd
Cv+
TSM1011
8
7
6
5
1/9

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TSM1011 Summary of contents

Page 1

... VOLTAGE REFERENCE: l Fixed output voltage reference 2.545V l 0.5% and 1% voltage precision DESCRIPTION The TSM1011 is a highly integrated solution for SMPS applications requiring voltage) and CC (constant current) modes. The TSM1011 integrates one voltage reference and two operational amplifiers (with ORed outputs —common collectors). ...

Page 2

... TSM1011 1 PIN DESCRIPTIONS SO8 & MiniSO8 Pinout Name Pin # Type Vref 1 Analog Output Cc- 2 Analog Input Cc+ 3 Analog Input Cv- 4 Analog Input Cv+ 5 Analog Input Gnd 6 Power Supply Out 7 Analog Output Vcc 8 Power Supply 2 ABSOLUTE MAXIMUM RATINGS Symbol Vcc DC Supply Voltage (50mA =< Icc) ...

Page 3

... Output Short Circuit Current. Output to Vcc. Sink Current Only Voltage reference V Reference Input Voltage, Iload=1mA ref TSM1011 1% precision TSM1011A 0.5% precision V Reference Input Voltage Deviation Over ref Temperature Range RegLine Reference input voltage deviation over Vcc range. RegLoad Reference input voltage deviation over output current ...

Page 4

... Fig. 2: Typical Adapter Application Using TSM1011 10K Vsense 1K Rsense In the above application schematic, the TSM1011 is used on the secondary side of a flyback adapter (or battery charger) to provide an accurate control of voltage and current. The above feedback loop is made with an optocoupler. 4/9 Vcc 1 Vref 28V Cv ...

Page 5

... lim se nse lim current sinking outputs operational amplifiers Vout Voltage regulation TSM1011 Vcc : independent power supply Secondary current regulation TSM1011 Vcc : On power output Primary current regulation TSM1011 Equation 2’ Equation 3 of the two are Iout 5/9 ...

Page 6

... PWM module, which should be chosen accordingly. If the primary current limitation is not considered to be precise enough for the application, then a sufficient supply for the TSM1011 has to be ensured under all conditions. This means that it is 6/9 The current-control transconductance operational amplifier can be fully compensated ...

Page 7

... Since the Absolute Maximum Rating of the TSM1011 supply voltage is 28V. In the aim to protect he TSM1011 against such how voltage values a internal zener clamp is integrated. R ...

Page 8

... TSM1011 9 PACKAGE MECHANICAL DATA DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 8/9 PACKAGE MECHANICAL DATA SO-8 MECHANICAL DATA mm. TYP MAX. MIN. 1.75 0.053 0.25 0.04 1.65 0.043 0.51 0.013 0.25 0.007 5.00 0.189 4.00 0.150 1.27 6.20 0.228 0.50 0.010 1.27 0.016 ˚ (max.) 8 0.1 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 ...

Page 9

... All other names are the property of their respective owners. Australia - Belgium - Brazil - Canada - China - Czech Repubic - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain © 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Sweden - Switzerland - United Kingdom - United States http://www.st.com TSM1011 9/9 ...

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