PDF《TPS2291xx,5.5V,2A,37mΩ 导通电阻负载开关》

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

28 ?s tF VOUT fall time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

2 ?s tD Delay time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

47 ?s A. Rise and fall times of the control signal is 100ns Figure 1. Test Circuit Figure 2. Timing Waveforms

6 Copyright ? 2014, Texas Instruments Incorporated TPS22914B, TPS22915B www.ti.com.cn ZHCSCL2A CJUNE 2014CREVISED JUNE

2014 8.7 Typical DC Characteristics VON =

5 V IOUT =

0 A VON =

0 V IOUT =

0 A Figure 3. IQ vs VIN Figure 4. ISD vs VIN VON =

5 V IOUT = C200 mA VON =

5 V IOUT = C200 mA Figure 5. RON vs TJ Figure 6. RON vs VIN VON =

5 V TA = 25°C IOUT =

0 A Figure 7. RON vs IOUT Figure 8. VIL vs VIN Copyright ? 2014, Texas Instruments Incorporated

7 TPS22914B, TPS22915B ZHCSCL2A CJUNE 2014CREVISED JUNE

2014 www.ti.com.cn Typical DC Characteristics (continued) IOUT =

0 A IOUT =

0 A Figure 9. VIH vs VIN Figure 10. VHYS vs VIN VIN = VOUT VON =

0 V Figure 11. RPD vs VIN

8 Copyright ? 2014, Texas Instruments Incorporated TPS22914B, TPS22915B www.ti.com.cn ZHCSCL2A CJUNE 2014CREVISED JUNE

2014 8.8 Typical AC Characteristics CIN =

1 ?F RL =

10 Ω CL = 0.1 ?F CIN =

1 ?F RL =

10 Ω CL = 0.1 ?F Figure 12. tR vs VIN Figure 13. tD vs VIN CIN =

1 ?F RL =

10 Ω CL = 0.1 ?F CIN =

1 ?F RL =

10 Ω CL = 0.1 ?F Figure 14. tF vs VIN Figure 15. tOFF vs VIN CIN =

1 ?F RL =

10 Ω CL = 0.1 ?F Figure 16. tON vs VIN Copyright ? 2014, Texas Instruments Incorporated

9 TPS22914B, TPS22915B ZHCSCL2A CJUNE 2014CREVISED JUNE

2014 www.ti.com.cn

9 Detailed Description 9.1 Overview The device is a 5.5-V, 2-A load switch in a 4-pin YFP package. To reduce voltage drop for low voltage and high current rails, the device implements an ultra-low resistance N-channel MOSFET whic........