Contact Us
SalesDept@heisener.com +86-755-83210559 ext. 811
Language Translation
  • • English
  • • Español
  • • Deutsch
  • • Français
  • • Italiano
  • • Nederlands
  • • Português
  • • русский язык
  • • 日本語
  • • 한국어
  • • 简体中文
  • • 繁體中文

* Please refer to the English Version as our Official Version.

Change Country

If your country is not listed, please select International as your region.

  • International
Americas
  • Argentina
  • Brasil
  • Canada
  • Chile
  • Colombia
  • Costa Rica
  • Dominican Republic
  • Ecuador
  • Guatemala
  • Honduras
  • Mexico
  • Peru
  • Puerto Rico
  • United States
  • Uruguay
  • Venezuela
Asia/Pacific
  • Australia
  • China
  • Hong Kong
  • Indonesia
  • Israel
  • India
  • Japan
  • Korea, Republic of
  • Malaysia
  • New Zealand
  • Philippines
  • Singapore
  • Thailand
  • Taiwan
  • Vietnam
Europe
  • Austria
  • Belgium
  • Bulgaria
  • Switzerland
  • Czech Republic
  • Germany
  • Denmark
  • Estonia
  • Spain
  • Finland
  • France
  • United Kingdom
  • Greece
  • Croatia
  • Hungary
  • Ireland
  • Italy
  • Netherlands
  • Norway
  • Poland
  • Portugal
  • Romania
  • Russian Federation
  • Sweden
  • Slovakia
  • Turkey

TSM1052

hot TSM1052

TSM1052

For Reference Only

Part Number TSM1052
Manufacturer STMicroelectronics
Description IC CONTROLLER CC/CV SMPS SOT23-6
Datasheet TSM1052 Datasheet
Package SOT-23-6
In Stock 406198 piece(s)
Unit Price $ 0.3103 *
Please request a real-time quote with our sales team. The unit price would influenced by the quantity requested and the supply sources. Thank you!
Lead Time Can Ship Immediately
Estimated Delivery Time Feb 25 - Mar 1 (Choose Expedited Shipping)
Winter Hot Sale

* Free Shipping * Up to $100 Discount

Winter Hot Sale

Request for Quotation

TSM1052

Quantity
  • We are offering TSM1052 for competitive price in the global market, please send us a quota request for pricing. Thank you!
  • To process your RFQ, please add TSM1052 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of TSM1052.
  • To learn about the specification of TSM1052, please search the datasheet by clicking the link above. If you couldn't find the correct datasheet, please refer to the manufacturer's official datasheet.
Payment Methods
Delivery Services

Do you have any question about TSM1052?

+86-755-83210559 ext. 811 SalesDept@heisener.com heisener007 2354944915 Send Message

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS

View the Certificates

TSM1052 Specifications

ManufacturerSTMicroelectronics
CategoryIntegrated Circuits (ICs) - PMIC - Battery Chargers
Datasheet TSM1052 Datasheet
PackageSOT-23-6
Series-
Current - ChargingConstant
Voltage - Supply (Max)18V
Operating Temperature-10°C ~ 85°C (TA)
Package / CaseSOT-23-6
Supplier Device PackageSOT-23-6

TSM1052 Datasheet

Page 1

Page 2

February 2008 Rev 2 1/15 15 TSM1052 Constant voltage and constant current controller for battery chargers and adapters Features ■ Secondary-side constant voltage and constant current control ■ Very low voltage operation ■ Very low quiescent consumption ■ High-accuracy internal reference ■ Low external component count ■ Wired-or open-drain output stage ■ Easy frequency compensation ■ SOT23-6 micro package Applications ■ Battery chargers ■ AC DC adapters Description The TSM1052 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation. The TSM1052 integrates a voltage reference, two op amps (with OR-ed open-drain outputs), and a low-side current sensing circuit. The voltage reference, along with one op amp, is the core of the voltage control loop; the current sensing circuit and the other op amp make up the current control loop. The external components needed to complete the two control loops are: ■ A resistor divider that senses the output of the power supply (adapter, battery charger) and fixes the voltage regulation set point at the specified value; ■ A sense resistor that feeds the current sensing circuit with a voltage proportional to the dc output current; this resistor determines the current regulation set point and must be adequately rated in terms of power dissipation; ■ Frequency compensation components (RC networks) for both loops. The TSM1052, housed in one of the smallest package available, is ideal for space-shrunk applications such as adapters and chargers. SOT23-6 www.st.com Table 1. Device summary Part number Package Packaging TSM1052 SOT23-6 Tape and reel

Page 3

Contents TSM1052 2/15 Contents 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.4 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.5 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Typical application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2 Voltage and current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2.1 Voltage control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.2.2 Current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.3 Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.4 Start up and short circuit conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Page 4

TSM1052 Description 3/15 1 Description 1.1 Pin connection Figure 1. Pin Connection (top view) 1.2 Pin description Vcc Vsense Ictrl Vctrl OUT GND 1 2 3 6 5 4 Table 2. Pin description N. Name Function 1 Vctrl Inverting input of the voltage loop op amp. The pin will be tied to the mid-point of a resistor divider that senses the output voltage. 2 GND Ground. Return of the bias current of the device. 0 V reference for all voltages. The pin should be tied as close to the ground output terminal of the converter as possible to minimize load current effect on the voltage regulation set point. 3 OUT Common open-drain output of the two internal op amps. The pin, able to sink current only, will be connected to the branch of the optocoupler’s photodiode to transmit the error signal to the primary side. 4 Ictrl Non-inverting input of the current loop op amp. It will be tied directly to the hot (negative) end of the current sense resistor 5 Vsense Inverting input of the current loop op amp. The pin will be tied to the cold end of the current sense resistor through a decoupling resistor. 6 Vcc Supply Voltage of the device. A small bypass capacitor (0.1 µF typ.) to GND, located as close to IC’s pins as possible, might be useful to get a clean supply voltage.

Page 5

Description TSM1052 4/15 1.3 Internal schematic Figure 2. Internal schematic 1.4 Absolute maximum ratings 1.5 Thermal data Vctrl GND VsenseIctrl OUT Vcc 1.238 V 200 mV + - + - + 1 2 3 54 61.21 V Table 3. Absolute maximum ratings Symbol Pin Parameter Value Unit VCC 6 DC supply voltage -0.3 to 20 V VOUT 3 Open-drain voltage -0.3 to VCC V IOUT 3 Max sink current 100 mA V 1, 4, 5 Analog inputs -0.3 to 3.3 V Table 4. Thermal data Symbol Parameter Value Unit RthJA Thermal resistance, junction-to-ambient 250 °C/W TOP Junction temperature operating range -10 to 85 °CTjmax Maximum junction temperature 150 TSTG Storage temperature -55 to 150

Page 6

TSM1052 Electrical characteristics 5/15 2 Electrical characteristics TJ = 25 °C and VCC = 5 V, unless otherwise specified Table 5. Electrical characteristics Symbol Parameter Test conditions Min Typ Max Unit Device supply VCC Voltage operating range 1.7 18 V ICC Quiescent current (Ictrl = Vsense = Vctr = 0, OUT = open) 150 µA (1) 1. Specification referred to -10 °C < TA < 85 °C 300 Voltage control loop op amp Gmv Transconductance (sink current only) (2) 2. If the voltage on Vctrl (the negative input of the amplifier) is higher than the positive amplifier input (Vref = 1.21 V), and it is increased by 1mV, the sinking current at the output OUT will be increased by 3.5 mA. 1 3.5 S (1) 2.5 Vref Voltage reference (3) 3. The internal Voltage Reference is set at 1.21 V (bandgap reference). The voltage control loop precision takes into account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the transconductance operational amplifier. The internal Voltage Reference is fixed by bandgap, and trimmed to 0.5% accuracy at room temperature. 1.198 1.21 1.222 V (1) 1.186 1.234 Ibias Inverting input bias current 50 nA (1) 100 Current control loop Gmi Transconductance (sink current only) (4) 4. When the positive input at Ictrl is lower than -200 mV, and the voltage is decreased by 1mV, the sinking current at the output Out will be increased by 7 mA. 1.5 7 S (1) Vsense Current loop reference (5) @ I(Iout) = 1 mA 5. The internal current sense threshold is set at -200 mV. The current control loop precision takes into account the cumulative effects of the internal voltage reference deviation as well as the input offset voltage of the transconductance operational amplifier. 196 200 204 mV (1) 192 208 Ibias Non-inverting input source current @ V(Ictrl) = -200 mV 20 µA (1) 40 Output stage VOUTlow Low output level @ 2 mA sink current 100 mV (1) 200

Page 7

Typical characteristics TSM1052 6/15 3 Typical characteristics Figure 3. Vref vs ambient temperature Figure 4. VSENSE vs ambient temperature Figure 5. VSENSE pin input bias current vs ambient temperature Figure 6. ICTRL pin input bias current vs ambient temperature Figure 7. Transconductances (sink current only) of voltage control loop op amp vs ambient temperature Figure 8. Transconductance (sink current only) of current control loop op amp vs ambient temperature 1.190 1.200 1.210 1.220 1.230 -20 0 20 40 60 80 100 Temp ( °C ) V re f (V ) Vcc=18V Vcc=5V Vcc=1.7V 192 194 196 198 200 202 204 206 208 -20 0 20 40 60 80 100 Temp ( °C ) V se ns e (m V ) Vcc=18V Vcc=5V Vcc=1.7V 0 10 20 30 40 50 -20 0 20 40 60 80 100 Temp ( °C ) Iib v( nA ) Vcc=18V Vcc=5V Vcc=1.7V 10 11 12 13 14 15 -20 0 20 40 60 80 100 Temp ( °C ) Iib i(u A ) Vcc=18V Vcc=5V Vcc=1.7V 0 2 4 6 8 10 12 14 16 18 -20 0 20 40 60 80 100 Temp ( °C ) G m v( m A /m V ) Vcc=18V Vcc=5V Vcc=1.7V 0 5 10 15 20 -20 0 20 40 60 80 100 Temp ( °C ) G m i(m A /m V ) Vcc=18V Vcc=5V Vcc=1.7V

Page 8

TSM1052 Typical characteristics 7/15 Figure 9. Low output level of voltage control loop op amp vs ambient temperature (2 mA sink current) Figure 10. Low output level of current control loop op amp vs ambient temperature (2 mA sink current) Figure 11. Output short circuit current of voltage control loop op amp vs ambient temperature Figure 12. Output short circuit current of current control loop op amp vs ambient temperature Figure 13. Supply current vs ambient temperature Figure 14. Low output level vs sink current 0 20 40 60 80 100 120 -20 0 20 40 60 80 100 Temp ( °C ) V ol v( m V ) Vcc=18V Vcc=5V Vcc=1.7V 0 20 40 60 80 100 120 140 -20 0 20 40 60 80 100 Temp ( °C ) V ol c( m V ) Vcc=18V Vcc=5V Vcc=1.7V 0 10 20 30 40 50 60 70 -20 0 20 40 60 80 100 Temp ( °C ) Io sv (m A ) Vcc=18V Vcc=5V Vcc=1.7V 0 10 20 30 40 50 60 70 80 -20 0 20 40 60 80 100 Temp ( °C ) Io sc (m A ) Vcc=18V Vcc=5V Vcc=1.7V 0.000 0.050 0.100 0.150 0.200 0.250 0.300 0.350 -20 0 20 40 60 80 100 Temp ( °C ) Ic c( uA ) Vcc=18V Vcc=5V Vcc=1.7V 0 0.5 1 1.5 2 2.5 1 6 11 16 21 26 31 Isink (mA) V ol ( V )

Page 9

Application information TSM1052 8/15 4 Application information 4.1 Typical application schematic Figure 15. Typical adapter or battery charger application using the device In the above application schematic, the device 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. 4.2 Voltage and current control 4.2.1 Voltage control The voltage loop is controlled via a first transconductance operational amplifier, the voltage divider R1, R2, and the optocoupler which is directly connected to the output. Its possible to choose the values of R1 and R2 resistors using Equation 1: Equation 1 where Vout is the desired output voltage. As an example, with R1 = 100 kΩ and R2 = 27 kΩ, VOUT = 5.7 V Rsense Iout VoutVctrl GND VsenseIctrl OUT Vcc 1.210 V 200 mV + - + - + 1 2 3 54 6 R1 R2 TSM1052 Ric2 Ric1 Cic1 Cvc1 Rvc1 Rled a) b) 2 21 refout R )RR( VV + ⋅= ref refout 21 V )VV( RR − ⋅=

Page 10

TSM1052 Application information 9/15 4.2.2 Current control The current loop is controlled via the second trans-conductance operational amplifier, the sense resistor Rsense, and the optocoupler. The control equation verifies: Equation 2 where Ilim is the desired limited current, and VSENSE is the threshold voltage for the current control loop. As an example, with Ilim = 1 A, VSENSE = 200 mV, then RSENSE = 200 mΩ. Note: The Rsense resistor should be chosen taking into account the maximum dissipation (Plim) through it during full load operation. Equation 3 As an example, with Ilim = 1 A, and Vsense = 200 mV, Plim = 200 mW. Therefore, for most adapter and battery charger applications, a quarter-watt, or half-watt resistor is sufficient. VSENSE threshold is made internally by a voltage divider tied to the Vref voltage reference. Its middle point is tied to the positive input of the current control operational amplifier, and its foot is to be connected to lower potential point of the sense resistor as shown in Figure 15 on page 8. The resistors of this voltage divider are matched to provide the best possible accuracy. The current sinking outputs of the two transconductance operational amplifiers are common (to the output of the IC). This makes an ORing function which ensures either the voltage control or the current control, driving the optocoupler's photodiode to transmit the feedback to the primary side. The relation between the controlled current and the controlled output voltage can be described with a square characteristic as shown in the following V/I output-power diagram. (with the power supply of the device indipendent of the output voltage) a) b) lim sense sense I V R = senselimsense VIR =⋅ limsenselim IVP ⋅=

TSM1052 Reviews

Average User Rating
5 / 5 (173)
★ ★ ★ ★ ★
5 ★
156
4 ★
17
3 ★
0
2 ★
0
1 ★
0

Manue*****rison

September 12, 2019

Very easy to find and order what I wanted. Being able to add multiple items in various quantities from an online catalog page with a simple click.

Fox*****adows

August 13, 2019

I can get a patience and respect for each order. Thank you!

Sele*****reen

August 7, 2019

Great website. Well organized and easy to search products.

Skyl*****opal

July 4, 2019

Works great with an older drive in a newer computer.have not encountered any problems, Glad somebody is making these for all the older equipment.

Make*****York

May 11, 2019

Good seller, incredible reliable.Item as described. Very professional

Keit*****rkar

April 26, 2019

Excellent company. Product as described. Usually fast and well packed.Very nice.

Mcke*****Vaidya

April 21, 2019

Excellent Seller,great product and Super Fast Shipping! Highly recommended A+++

Ken***** Sani

April 8, 2019

To be honest, you're beating your competitor on delivery - sometimes I request 2nd day and you still get it here overnight. Thanks!

Bro***** Meza

April 6, 2019

Very fast reply, professional seller and received the correct parts.

Rut*****orah

March 15, 2019

No complaints. Works perfectly every single one of them! great quality! No bent pins either!

TSM1052 Guarantees

Service Guarantee

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantee

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

TSM1052 Packaging

Verify Products
Customized Labels
Professional Packaging
Sealing
Packing
Insepction

TSM1052 Related Products

hotTSM1052 TS163F23CET CTS-Frequency Controls, CRYSTAL 16.384000 MHZ, HC49/US, - View
hotTSM1052 STS30N3LLH6 STMicroelectronics, MOSFET N-CH 30V 30A 8-SOIC, 8-SOIC (0.154", 3.90mm Width), - View
hotTSM1052 STB10LN80K5 STMicroelectronics, MOSFET N-CH 800V 8A D2PAK, TO-263-3, D2Pak (2 Leads + Tab), TO-263AB, - View
hotTSM1052 VNL5030S5TR-E STMicroelectronics, IC DVR SWITCH LOW SIDE 8SOIC, 8-SOIC (0.154", 3.90mm Width), - View
hotTSM1052 M59DR032EA10ZB6T STMicroelectronics, IC FLASH 32MBIT 100NS 48TFBGA, 48-LFBGA, - View
hotTSM1052 M95320-WMN6P STMicroelectronics, IC EEPROM 32KBIT 10MHZ 8SO, 8-SOIC (0.154", 3.90mm Width), - View
hotTSM1052 STLVDS31BTR STMicroelectronics, IC LINE DRIVER HS DIFF 16-TSSOP, 16-TSSOP (0.173", 4.40mm Width), - View
hotTSM1052 TS87C51FA24SF76 Intel, IC MCU 8BIT 8KB OTP 44MQFP, 44-QFP, - View
hotTSM1052 TSOP57538HTT1 Vishay Semiconductor Opto Division, MOD IR RCVR 38KHZ TOP VIEW SHIEL, -, - View
hotTSM1052 TSOP75430TT Vishay Semiconductor Opto Division, MOD IR RCVR 30KHZ TOP VIEW, -, - View
hotTSM1052 TSL0709RA-151KR52-PF TDK Corporation, FIXED IND 150UH 520MA 560 MOHM, Radial, - View
hotTSM1052 TSW-149-06-G-S Samtec Inc., CONN HEADER 49POS .100" SGL GOLD, -, - View

TSM1052 Tags

  • TSM1052
  • TSM1052 PDF
  • TSM1052 datasheet
  • TSM1052 specification
  • TSM1052 image
  • STMicroelectronics
  • STMicroelectronics TSM1052
  • buy TSM1052
  • TSM1052 price
  • TSM1052 distributor
  • TSM1052 supplier
  • TSM1052 wholesales

TSM1052 is Available in