Texas Instruments TPS61081EVM-147 Evaluation Module TPS61081EVM-147 TPS61081EVM-147 데이터 시트
제품 코드
TPS61081EVM-147
www.ti.com
2.1.7
JP1-ENable
2.1.8
JP2-FSW
2.2
EVM Operation
2.3
Test Results
20
30
40
50
60
70
80
90
0
0.01
0.02
0.03
0.04
0.05
I
- Output Current - A
O
Efficiency-%
EFFICIENCY
vs
OUTPUT CURRENT
Setup and Test Results
Installing this jumper ties the EN pin to V
IN
, thereby enabling the device. Removing the jumper allows the
internal pulldown resistor to pull EN to ground, thereby disabling the device.
The middle pin of this jumper connects to the FSW pin of the IC. Placing this jumper across pins 1 and 2
ties the FSW pin to V
ties the FSW pin to V
IN
, thereby implementing a 1.2-MHz switching frequency. Placing this jumper across
pins 2 and 3 ties the FSW pin to ground, thereby implementing a 600-kHz switching frequency.
The user must connect an input power supply set between 2.5 V and 6 V between headers J1 and J2 in
order for the EVM to operate. The absolute maximum input voltage is 7 V. The user can connect a load
resistance between headers J3 and J4. Alternatively, the user can connect a WLED string between
jumpers J3 and J5, populate resistor R7 with a 0-
order for the EVM to operate. The absolute maximum input voltage is 7 V. The user can connect a load
resistance between headers J3 and J4. Alternatively, the user can connect a WLED string between
jumpers J3 and J5, populate resistor R7 with a 0-
Ω
resistor, remove resistor R1 and capacitor C2, and
properly size resistors R2 and R5 as explained in the datasheet. Short jumper JP1 to enable the device.
shows the test results using this EVM.
Figure 1. TPS61080 Efficiency With V
IN
= 3.6 V and CDRH4D16NP-4R7 Inductor
SLVU144 – January 2007
TPS6108xEVM-147
3