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UR5515 T/R, UR5516, UR5516 T/R

Table of contents:
Info of UR5515 T/R
Info of UR5516
Info of UR5516 T/R

UR5515 T/R, UR5516, UR5516 T/R Selling Leads, Datasheet

MFG:UTC Package Cooled:TO-263-5 D/C:08+

UR5515 T/R, UR5516, UR5516 T/R Datasheet download

Five Points

Part Number: UR5515 T/R

MFG: UTC

Package Cooled: TO-263-5

D/C: 08+

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UR5516 General Description

The UTC UR5516 is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination.

Current-limit work to limit the short-circuit current, on-chip thermal shutdown provides protection against any combination of overload that would create excessive junction temperature. The output voltage tracks the voltage at V_REF pin. A resistor divider connected to V_IN, GND and V_REF pins is used to provide a half voltage of V_IN to V_REF pin. In addition, an external ceramic capacitor and an open-drain transistor connected to V_REF pin provides soft-start and shutdown control respectively. Pulling and holding the V_REF to GND shuts off the output. The output of UTC UR5516 will be high impedance afterbeing shut down by V_REF or thermal shutdown function.

UR5516 Maximum Ratings

PARAMETER	SYMBOL	RATINGS	UNIT
V_CNTL Supply Voltage, V_CNTL to GND V_INSupply Voltage, V_IN to GND	V_CNTL V_IN	-0.2 ~ 7 -0.2 ~ 3.9	V V
Power Dissipation Junction Temperature Storage Temperature	P_D T_J T_STG	Internally Limited +150 -40 ~ +150	W

Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.􀀁
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

UR5516 Features

* Provide bi-direction current
- Sourcing or sinking current up to 3A
* 1.25V/0.9V output for DDR I/II applications
* Fast transient response
* High output accuracy
- ±20mv over load, VOUT offset and temperature
* Adjustable output voltage by external resistors
* Current-limit protection
* On-chip thermal shutdown
* Shutdown for standby or suspend mode

UR5516 Connection Diagram

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