TPS92641 datasheet(8/37 Pages) TI1

Part #	TPS92641

Description	Synchronous Buck Controllers for Precision Dimming LED Drivers

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Manufacturer	TI1 [Texas Instruments]

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8 / 37 page

200

220

240

260

280

0

10

20

30

40

50

60

70

80

90

Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

200

220

240

260

280

0

10

20

30

40

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80

90

Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

6.00

6.50

7.00

7.50

8.00

8.50

9.00

0

10

20

30

40

50

60

70

80

90

Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

I

VCC = 10mA

2.96

2.98

3.00

3.02

3.04

3.06

0

10

20

30

40

50

60

70

80

90

Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

I

VREF = 500PA

1.50

1.70

1.90

2.10

2.30

2.50

0

10

20

30

40

50

60

70

80

90

Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

0.00

40.00

80.00

120.00

160.00

200.00

0

10

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Input Voltage, V

IN(V)

C001

125°C

25°C

-40°C

TPS92640, TPS92641

SNVS902A – OCTOBER 2012 – REVISED OCTOBER 2015

www.ti.com

6.6 Typical Characteristics

Unless otherwise stated, –40°C

≤ TA = TJ ≤ 125°C, VIN = 24 V, VIADJ= 2 V, ILED = 1 A, CVCC = 2.2 μF, CCOMP = 0.47 μF

Figure 1. Quescient Current, IQ vs Input Voltage, VIN

Figure 2. Shutdown Current, ISDvs Input Voltage , VIN

Figure 3. Start-Up Regulator, VCC vs Input Voltage, VIN

Figure 4. Reference Voltage, VREF vs Input Voltage, VIN

Figure 5. Minimum On-time, tON_MIN vs Input Voltage, VIN

Figure 6. Minimum Off-time, tOFF_MIN vs Input Voltage, VIN

8

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