Motore di ricerca datesheet componenti elettronici |
|
MIC2202 Scheda tecnica(PDF) 6 Page - Micrel Semiconductor |
|
MIC2202 Scheda tecnica(HTML) 6 Page - Micrel Semiconductor |
6 / 18 page MIC2202 Micrel M9999-052104 6 May 2004 Functional Description V IN V IN provides power to the output and to the internal bias supply. The supply voltage range is from 2.3V to 5.5V. A minimum 1 µF ceramic is recommended for bypassing the input supply. Enable The enable pin provides a logic level control of the output. In the off state, supply current of the device is greatly reduced (typically <1 µA). Also, in the off state, the output drive is placed in a “tri-stated” condition, where both the high side P-Channel MOSFET and the low-side N-Channel are in an off or non-conducting state. Do not drive the enable pin above the supply voltage. Sync_In Sync_In pin enables the ability to change the fundamental switching frequency. The Sync_In frequency has a minimum frequency of 1.6MHz and a maximum sync frequency of 2.5MHz. Careful attention should be paid to not driving the Sync_In pin greater than the supply voltage. While this will not damage the device, it can cause improper operation. Sync_Out Sync_Out is an open collector output that provides a signal equal to the internal oscillator frequency. This creates the ability for multiple MIC2202s to be connected together in a master-slave configuration for frequency matching of the converters. A typical 10k Ω is recommended for a pull-up resistor. Bias The bias supply is an internal 2.3V linear regulator that supplies the internal biasing voltage to the MIC2202. A 10nF ceramic capacitor is required on this pin for bypassing. Do not use the bias pin as a supply. The bias pin was designed to supply internal power only. Feedback The feedback pin provides the control path to control the output. A resistor divider connecting the feedback to the output is used to adjust the desired output voltage. Refer to the feedback section in the “Applications Information” for more detail. 10k Ω SYNC_IN VIN MIC2202 “Master” SYNC_OUT SW BIAS FB SYNC_IN VIN MIC2202 “Slave” SYNC_OUT SW BIAS FB Figure 1. Master-Slave Operation |
Codice articolo simile - MIC2202 |
|
Descrizione simile - MIC2202 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |