Electronic Components Datasheet Search |
|
ADP2504ACPZ-3.3-R71 Datasheet(PDF) 11 Page - Analog Devices |
|
ADP2504ACPZ-3.3-R71 Datasheet(HTML) 11 Page - Analog Devices |
11 / 16 page Preliminary Technical Data ADP2503/ADP2504 ENABLE The device starts operation with soft start when the EN pin is brought high. Pulling the EN pin low forces the device into shutdown, with a typical shutdown current of 0.2 μA. In this mode, the PMOS power switches are turned off, the NMOS power switches are turned on, and the control circuitry is not enabled. For proper operation, the EN pin must be terminated and must not be left floating. UNDERVOLTAGE LOCKOUT The undervoltage lockout circuit prevents the device from oper ating incorrectly at low input voltages. It prevents the converter from turning on the power switches under undefined conditions and therefore, prevents deep discharge of the battery supply. VIN must be greater than 2.25 V to enable the converter. During operation, if VIN drops below 2.18 V, the ADP2503/ADP2504 are disabled until the supply exceeds the UVLO rising threshold. THERMAL SHUTDOWN When the junction temperature, TJ, exceeds 150°C typical, the device goes into thermal shutdown. In this mode, the power switches are turned off. The device resumes operation when the junction temperature again falls below 125°C typical. SHORT CIRCUIT PROTECTION When the nominal inductor peak current value of 1.5 A is reached, the ADP2503/ADP2504 first switch off the NMOS2 transistor if it was active. If the current thereafter continues to increase by an extra amount of 200 mA, the PMOS1 transistor is also switched off. This operation is reversible when the short circuit stops. It allows the inductor current ripple to be mini mized close to 1.5 A and, thus, the controller to restore VOUT even if a high load current is maintained after the short circuit. Rev. PrB | Page 11 of 16 |
Similar Part No. - ADP2504ACPZ-3.3-R71 |
|
Similar Description - ADP2504ACPZ-3.3-R71 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |