LM5145 datasheet(12/67 Pages) TI1

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Input Voltage (V)

100

2.5

2.75

3.25

3.5

3.75

40°C

25°C

125°C

Input Voltage (V)

100

0.1

0.2

0.3

0.4

0.5

0.6

VCC = 8V

Input Voltage (V)

100

1.4

1.6

1.8

2.2

40°C

25°C

125°C

Input Voltage (V)

100

1.4

1.6

1.8

2.2

40°C

25°C

125°C

Junction Temperature (°C)

-40

-25

-10

110 125

100

120

140

160

TOFF(min)

TON(min)

Input Voltage (V)

100

40°C

25°C

125°C

LM5145

SNVSAI4 – JUNE 2017

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Typical Characteristics (continued)

VVIN = 48 V, RRT = 25 kΩ, SYNCIN tied to VCC, EN/UVLO tied to VIN (unless otherwise noted).

Figure 7. TON(min) and TOFF(min) vs Junction Temperature

VSW = 0 V

VEN/UVLO = 0 V

Figure 8. IQ-SHD vs Input Voltage

VSW = 0 V

VEN/UVLO = 1 V

Figure 9. IQ-STANDBY vs Input Voltage

VSW = 0 V

VEN/UVLO = VVIN

VSS/TRK = 0 V

Figure 10. IQ-OPERATING (Nonswitching) vs Input Voltage

VSW = 0 V

HO, LO Open

Figure 11. IQ-OPERATING (Switching) vs Input Voltage

VSW = 0 V

VVCC = VBST = VILIM

VFB = 0 V

Figure 12. VIN Quiescent Current With External VCC Applied

LM5145 Datasheet(PDF) 12 Page - Texas Instruments

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