PDF《TPS2291xx,5.5V,2A,37mΩ 导通电阻负载开关》

4 PINS RθJA Junction-to-ambient thermal resistance

193 RθJC(top) Junction-to-case (top) thermal resistance 2.3 RθJB Junction-to-board thermal resistance

36 °C/W ψJT Junction-to-top characterization parameter

12 ψJB Junction-to-board characterization parameter

36 (1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

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

2014 8.5 Electrical Characteristics Unless otherwise noted, the specification in the following table applies over the operating ambient temperature C40°C ≤ TA ≤ 85°C (Full). Typical values are for TA = 25°C. PARAMETER TEST CONDITION TA MIN TYP MAX UNIT VIN = 5.5 V 7.7 10.8 VIN = 5.0 V 7.6 9.6 VIN = 3.3 V 7.7 9.6 IQ, VIN Quiescent current VON =

5 V, IOUT =

0 A Full ?A VIN = 1.8 V 8.4 11.0 VIN = 1.2 V 7.4 10.4 VIN = 1.05 V 6.7 10.9 VIN = 5.5 V 0.5

2 VIN = 5.0 V 0.5

2 VIN = 3.3 V 0.5

2 ISD, VIN Shutdown current VON =

0 V, VOUT =

0 V Full ?A VIN = 1.8 V 0.5

2 VIN = 1.2 V 0.4

2 VIN = 1.05 V 0.4

2 ION ON pin input leakage current VIN = 5.5 V, IOUT =

0 A Full 0.1 ?A 25°C

37 40 VIN = 5.5 V, IOUT = C200 mA mΩ Full

51 25°C

37 41 VIN = 5.0 V, IOUT = C200 mA mΩ Full

51 25°C

37 41 VIN = 4.2 V, IOUT = C200 mA mΩ Full

52 25°C

38 41 VIN = 3.3 V, IOUT = C200 mA mΩ Full

52 RON On-Resistance 25°C

38 42 VIN = 2.5 V, IOUT = C200 mA mΩ Full

53 25°C

43 48 VIN = 1.8 V, IOUT = C200 mA mΩ Full

59 25°C

52 61 VIN = 1.2 V, IOUT = C200 mA mΩ Full

73 25°C

63 96 VIN = 1.05 V, IOUT = C200 mA mΩ Full

102 VIN = 5.5 V Full

102 VIN = 5.0 V Full

100 VIN = 3.3 V Full

98 VHYS ON pin hysteresis VIN = 2.5 V Full

96 mV VIN = 1.8 V Full

96 VIN = 1.2 V Full

94 VIN = 1.05 V Full

92 RPD (1) Output pull down resistor VIN = VOUT = 3.3 V, VON =

0 V Full

143 200 Ω (1) TPS22915B only. Copyright ? 2014, Texas Instruments Incorporated

5 TPS22914B, TPS22915B ZHCSCL2A CJUNE 2014CREVISED JUNE

2014 www.ti.com.cn 8.6 Switching Characteristics Refer to the timing test circuit in Figure

1 (unless otherwise noted) for references to external components used for the test condition in the switching characteristics table. Switching characteristics shown below are only valid for the power-up sequence where VIN is already in steady state condition before the ON pin is asserted high. PARAMETER TEST CONDITION MIN TYP MAX UNIT VIN =

5 V, VON =

5 V, TA = 25?C (unless otherwise noted) tON Turn-on time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

104 ?s tOFF Turn-off time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

2 ?s tR VOUT rise time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

89 ?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

59 ?s VIN = 3.3 V, VON =

5 V, TA = 25?C (unless otherwise noted) tON Turn-on time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

83 ?s tOFF Turn-off time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

2 ?s tR VOUT rise time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

64 ?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

52 ?s VIN = 1.05 V, VON =

5 V, TA = 25?C (unless otherwise noted) tON Turn-on time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

61 ?s tOFF Turn-off time RL =

10 Ω, CIN =

1 ?F, COUT = 0.1 ?F

3 ?s tR VOUT rise time RL =