TSM007 STMicroelectronics, TSM007 Datasheet
TSM007
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TSM007 Summary of contents
Page 1
... High-current Output Drive Suitable for Power Mosfet Programmable Soft Start 2kV ESD Protection DESCRIPTION The TSM007 integrated circuit incorporates all circuitry to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM controller, this device includes additional features for higher integration ...
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... TSM007 1 Block Diagram Vin 50µA Brnout 2 Vin 725µA Comp Vref 400µ Comp_Osc CT 1mA Vref 10µ 4mA Css PIN DESCRIPTION Name Pin COMP 1 BRNOUT Timing capacitor GND 5 OUT 6 VIN Timing capacitor 2/12 Internal UVLO Brown_Out ...
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... Junction temperature ESD Electrostatic Discharge 1) All voltage values, except differential voltage are with respect to network ground terminal (GND). OPERATING CONDITIONS Symbol Vcc DC Supply Conditions Toper Operating Free Air Temperature Range DC Supply Voltage 1 Parameter TSM007 Value Unit -0 0 -0 ...
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... TSM007 3 Electrical Characteristics Tamb = 25°C, Vin=12V, Ct=1.5nF unless otherwise specified Symbol Parameter Oscillator Fosc Oscillating frequency Foscmax Maximum oscillating frequency fosc1 Typical oscillating voltage stability fosc2 Typical oscillating temperature stability 0°C Ici Charge current Icd Discharge current Vthct Upper trip point ...
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... Functional Description 4 Functional Description TSM007: PWM Controller IC Internal UVLO function The Under Voltage Lock Out function disables the whole device when supply voltage is lower than the threshold. Vref block The Vref block provides an internal 5V reference voltage to the IC. An internal Vref status signal is active when Vref is lower than 4 ...
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... TSM007 Soft start A capacitor from the SS pin to GND provides the soft start function. The capacitor starts to charge when VIN reaches the UVLO threshold and Vref is good.The soft start block enables the IC to start with a progessive PWM duty cycle. The soft start period is set by the external capacitor Css ...
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... The Iin current is provided by the auxiliary winding. Let’s assume Vfiltered = 200V Rp = 620K Rpmax dissipation = 220mW Output driver The OUT totem pole output is capable to sink and source more than 1.0A (peak) in order to direct drive a power MOSFET.. D1 Istby TSM007 28V Vin Out Rb Gnd 7/12 ...
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... TSM007 Fig. 1: Detailed Internal Schematic Vin Ibr 50µA 2 Brnout Vin Icomp 725µA 1 Comp CS 3 Vref Ici 400µ Icd 1mA Vref Iiss 10µ Idss Css 4mA 8/12 Internal UVLO Comp_Brown out 2.5V 2R Comp_Cs Cs_Latch Start up_Latch R LEB S Comp_Ocs ...
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... CS OUT Timing at Vref rise up and shut down Vin VH VL Internal UVLO Vref 4.7V VrefStatus CT Startup OUT Timing for Soft Start function CT CT-VF Out Timing at UVLO rise up and shut down Vin 9. Internal UVLO Brnout Vref 4.7V 3V VrefStatus 1.4V CT Startup OUT TSM007 Comp SS 9.5V 7.9V 2.5V 3V 1.4V 2V 9/12 ...
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... 10/12 Vfiltered Raux + C7 D4 Vin 2 6 Brnout Out TSM007 5 Gnd Comp 1 Css Ct C8 Functional Description R12 R13 Q1 U2 R16 U3 TL431 R11 R10 Vout+ + C10 Gnd R14 C11 R15 ...
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... Package Mechanical Data DIM. MIN 0.7 B 1. 0.44 Plastic DIP-8 MECHANICAL DATA mm. TYP MAX. 3.3 1.65 1.04 0.5 0.5 9.8 8.8 2.54 7.62 7.62 7.1 4.8 3.3 1.6 inch MIN. TYP. MAX. 0.130 0.028 0.055 0.065 0.036 0.041 0.020 0.015 0.020 0.386 0.346 0.100 0.300 0.300 0.280 0.189 0.130 0.017 0.063 P001F TSM007 11/12 ...
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... TSM007 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 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice ...