Electronic Components Datasheet Search |
|
TPS5430-Q1 Datasheet(PDF) 7 Page - Texas Instruments |
|
|
TPS5430-Q1 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 27 page APPLICATION INFORMATION FUNCTIONAL BLOCK DIAGRAM VIN UVLO ENABLE Thermal Protection Reference Overcurrent GateDrive Oscillator Ramp Generator VREF PH ENA GND BOOT Z1 Z2 SHDN SHDN SHDN SHDN SHDN SHDN SHDN SHDN VIN 112.5%VREF VSENSE OVP HICCUP HICCUP SHDN NC FeedForward BOOT NC POWERPAD VIN VOUT 5 µA 1.221VBandgap SlowStart Boot Regulator Error Amplifier Gain=25 PWM Comparator Protection Gate Driver Control VSENSE DETAILED DESCRIPTION Oscillator Frequency Voltage Reference Enable (ENA) and Internal Slow Start TPS5430-Q1 www.ti.com ................................................................................................................................................... SLVS751C – NOVEMBER 2007 – REVISED JULY 2009 The internal free running oscillator sets the PWM switching frequency at 500 kHz. The 500-kHz switching frequency allows less output inductance for the same output ripple requirement resulting in a smaller output inductor. The voltage reference system produces a precision reference signal by scaling the output of a temperature stable bandgap circuit. The bandgap and scaling circuits are trimmed during production testing to an output of 1.221 V at room temperature. The ENA pin provides electrical on/off control of the regulator. Once ENA voltage exceeds the threshold voltage, the regulator starts operation and the internal slow start begins to ramp. If ENA voltage is pulled below the threshold voltage, the regulator stops switching and the internal slow start resets. Connecting the pin to ground or to any voltage less than 0.5 V disables the regulator and activates the shutdown mode. The quiescent current of the TPS5430 in shutdown mode is typically 18 µA. Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): TPS5430-Q1 |
Similar Part No. - TPS5430-Q1 |
|
Similar Description - TPS5430-Q1 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |