TSM1052 STMicroelectronics, TSM1052 Datasheet
TSM1052
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TSM1052 Summary of contents
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... 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. Package SOT23-6 Rev 2 ...
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... 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 4.2.2 4.3 Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.4 Start up and short circuit conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5 Mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 Voltage control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 TSM1052 ...
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... TSM1052 1 Description 1.1 Pin connection Figure 1. Pin Connection (top view) 1.2 Pin description Table 2. Pin description N. Name 1 V ctrl 2 GND 3 OUT 4 I ctrl 5 V sense 6 Vcc Vctrl Vctrl Vctrl Vctrl Vctrl Vctrl GND GND GND GND GND GND OUT OUT OUT ...
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... DC supply voltage 3 Open-drain voltage 3 Max sink current Analog inputs Parameter Vcc Vcc Vcc Vcc OUT OUT OUT OUT Vctrl Vctrl Vctrl Vctrl GND GND GND GND Value -0 -0 100 -0.3 to 3.3 Value 250 - 150 -55 to 150 TSM1052 Unit Unit °C/W °C ...
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... TSM1052 2 Electrical characteristics °C and V J Table 5. Electrical characteristics Symbol Device supply V Voltage operating range CC Quiescent current I (Ictrl = Vsense = Vctr = 0, CC OUT = open) Voltage control loop op amp Transconductance Gm v (sink current only) Vref Voltage reference Ibias Inverting input bias current Current control loop ...
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... Figure 6. Vcc=1. 100 -20 Figure 8. Vcc=1. - 100 TSM1052 V vs ambient temperature SENSE Vcc=18V Vcc=5V Vcc=1. Temp ( ° pin input bias current vs CTRL ambient temperature Vcc=18V Vcc=5V Vcc=1. Temp ( °C ) Transconductance (sink current only) of current control loop op amp vs ambient temperature ...
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... TSM1052 Figure 9. Low output level of voltage control loop op amp vs ambient temperature (2 mA sink current) Vcc=18V Vcc=5V 120 100 - Temp ( °C ) Figure 11. Output short circuit current of voltage control loop op amp vs ambient temperature Vcc=18V Vcc= - Temp ( °C ) Figure 13. Supply current vs ambient temperature Vcc=18V Vcc=5V 0 ...
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... GND GND - - Ictrl Ictrl Vsense Vsense Ric2 Ric2 Rsense Rsense Iout Iout + ⋅ out ref R 2 − ⋅ out ref ref OUT TSM1052 R1 R1 Rled Rled Rvc1 Rvc1 Cvc1 Cvc1 Cic1 Cic1 R2 R2 Ric1 Ric1 ) ) = 5.7 V Vout Vout ...
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... TSM1052 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 I is the desired limited current, and V lim control loop example, with I Note: The Rsense resistor should be chosen taking into account the maximum dissipation (P through it during full load operation ...
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... Vcc of the device independent of output voltage) ( Vcc of the device independent = 470 kΩ in series. CV1 = 22 kΩ in series. In order to increase the IC1 value could be 330 Ω in series with the optocoupler. LED TSM1052 Current regulation Current regulation Iout Iout Figure 15. It consists of a Figure 15. ...
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... TSM1052 Figure 17. Application circuit able to supply the device even with Vcc Vcc Vcc TSM1052 TSM1052 TSM1052 1.210 V 1.210 V 1.210 OUT OUT OUT + + + - - - Vctrl Vctrl Vctrl + + + 200 mV 200 mV 200 GND GND GND - - - Ictrl Ictrl Ictrl Vsense Vsense Vsense Ric2 Ric2 Rsense Rsense ...
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... These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK trademark. ECOPACK specifications are available at: www.st.com. 12/15 TSM1052 ® ...
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... TSM1052 Table 6. SOT23-6 mechanical data Dim θ Note: Dimensions per JEDEC MO178AB Figure 18. Package dimensions mm. Min Typ Max 0.9 1.45 0 0.1 0.9 1.3 0.35 0.5 0.09 0.2 2.8 3.05 1.5 1.75 0.95 2.6 3 0.1 0.6 0 10° Package mechanical data inch ...
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... Revision history 6 Revision history Table 7. Document revision history Date 20-Feb-2007 07-Feb-2008 14/15 Revision 1 Initial release. 2 Updated: Section 5 on page 12 TSM1052 Changes ...
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... TSM1052 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...