Os motores de busca de Datasheet de Componentes eletrônicos |
|
LM3000 Folha de dados(PDF) 4 Page - Texas Instruments |
|
LM3000 Folha de dados(HTML) 4 Page - Texas Instruments |
4 / 41 page LM3000 SNVS612A – JULY 2009 – REVISED JULY 2009 www.ti.com Pin Descriptions (continued) Pin # Name Description 17 FREQ/SYNC Frequency set / synchronization input for internal PLL. 18 EN1 Channel 1 enable input. Used to set the emulated current slope for channel 1. 19 TRK1 Channel 1 track input. 20 SS1 Channel 1 soft-start. 21 TRK2 Channel 2 track input. 22 SS2 Channel 2 soft-start. 23 EN2 Channel 2 enable input. Used to set the emulated current slope for channel 2. 24 PGOOD2 Power good signal for channel 2 under-voltage and over-voltage. 25 COMP2 Error amplifier output for channel 2. 26 FB2 Error amplifier input for channel 2. 27 EA2_GND Error amplifier ground sense for channel 2.* 28 CLKOUT Output clock. CLKOUT is shifted 90 degrees from SYNC input. 29 SGND Local signal ground.* 30 VCB2 Boost voltage for channel 2 high-side driver. 31 HG2 Channel 2 high-side gate drive for external MOSFET. 32 ILIM2 Current limit setting input for channel 2. DAP Exposed die attach pad. Connect the DAP directly to SGND.* These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) VIN to SGND, PGND -0.3V to 20V VSW1, VSW2 to SGND, PGND -3V to 20V VDD, VDR to SGND, PGND (2) -0.3V to 5.5V VCB1, VCB2 to SGND ,PGND 24V VCB1 to VSW1, VCB2 to VSW2 5.5V FB1, FB2 to SGND, PGND -0.3V to 3.0V All other input pins to SGND, PGND (3) -0.3V to 5.5V Junction Temperature (TJ-MAX) 150°C Storage Temperature Range -65°C to +150°C Maximum Lead Temperature Soldering, 5 seconds 260°C ESD Rating HBM (4) 2000V (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in the Recommended Operating Conditions is not implied. Operating Range conditions indicate the conditions at which the device is functional and the device should not be operated beyond such conditions. For guaranteed specifications and conditions, see the Electrical Characteristics table. (2) VDD and VDR are outputs of the internal linear regulator. Under normal operating conditions where VIN > 5.5V, they must not be tied to any external voltage source. In an application where VIN is between 3.3V to 5.5V, it is recommended to tie the VDD, VDR and VIN pins together, especially when VIN may drop below 4.5V. In order to have better noise rejection under these conditions, a 10 Ω, 1μF input filter may be used for the VDD pin. (3) HG1, HG2, LG1, LG2 and CLKOUT are all output pins and should not be tied to any external power supply. COMP1 and COMP2 are also outputs and should not be tied to any lower output impedance power source. PGOOD1 and PGOOD2 are open drain outputs, with a pull-down resistance of about 250 Ω. Each of them may be tied to an external voltage source less than 5.5V through an external resister greater than 3k Ω, although 10kΩ and above are preferred to reduce the necessary signal ground current. (4) Human Body Model (HBM) is 100 pF capacitor discharged through a 1.5k resistor into each pin. Applicable standard is JESD22-A114C. 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Links: LM3000 |
Nº de peça semelhante - LM3000_14 |
|
Descrição semelhante - LM3000_14 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |