Texas Instruments TPS51116 Memory Power Solution, Synchronous Buck Controller Evaluation Module TPS51116EVM-001 TPS51116EVM-001 데이터 시트
제품 코드
TPS51116EVM-001
4
Configuration
4.1
User Selectable Configuration Modes
VDDQ
VTTREF
VTT
ON
OFF
ON
ON
ON
ON
OFF
OFF
OFF
State
S0
S4/S5
S3
S3
S4
4.2
JP1
Tracking Discharge Mode
Configuration
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shows the location of the four jumper blocks, two switches and three resistors used to adjust the
configuration of TPS51116EVM. Refer to the specific configuration settings sections regarding how to set
each jumper, switch or resistor for the specific configuration desired.
each jumper, switch or resistor for the specific configuration desired.
CAUTION
Do not install jumpers in positions other than those shown.
Figure 2. TPS51116EVM Jumper/Switch Locations and Default Positions
The TPS51116EVM comes preconfigured in tracking discharge mode. In tracking discharge mode, when
the TPS51116 is set to discharge by turning on both S3 and S5 switches, the TPS51116 turns off both
MOSFETs and sinks current slowly from the VDDQ output through an internal MOSFET. Because the
resistance of this MOSFET is fairly high, the VDDQ level discharges slowly unless a heavy load is placed
externally.
the TPS51116 is set to discharge by turning on both S3 and S5 switches, the TPS51116 turns off both
MOSFETs and sinks current slowly from the VDDQ output through an internal MOSFET. Because the
resistance of this MOSFET is fairly high, the VDDQ level discharges slowly unless a heavy load is placed
externally.
To program the EVM for tracking discharge mode set the JP1 jumper to the lower vertical position.
Using the TPS51116EVM
6
SLUU202A – SEPTEMBER 2004 – Revised November 2008