TPS61050DRCR datasheet(9/45 Pages) TI

Part #	TPS61050DRCR

Description	1.2-A HIGH POWER WHITE LED DRIVER 2-MHz SYNCHRONOUS BOOST CONVERTER WITH I2C COMPATIBLE INTERFACE

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Manufacturer	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

0

10

20

30

40

50

60

70

80

90

100

2.5

2.9

3.3

3.7

4.1

4.5

4.9

5.3 5.5

V -InputVoltage-V

I

=50mA

LED

I

=250mA

LED

I

=100mA

LED

I

=2000mA

LIM

I

=150mA

LED

0

10

20

30

40

50

60

70

80

90

100

2.5

2.9

3.3

3.7

4.1

4.5

4.9

5.3 5.5

V -InputVoltage-V

I

=300mA

LED

I

=500mA

LED

I

=700mA

LED

I

=900mA

LED

I

=1200mA

LED

ILIM=2000mA

TPS61050

TPS61052

SLUS525 – MARCH 2007

Table 1. Table of Graphs

FIGURE

LED Power Efficiency

vs. Input Voltage

Figure 4, Figure 5

DC Input Current

vs. Input Voltage

Figure 6

LED Current

vs. LED Pin Headroom Voltage

Figure 7

LED Current

vs. LED Current Digital Code

Figure 8, Figure 9, Figure 10

Voltage Mode Efficiency

vs. Output Current

Figure 11

DC Output Voltage

vs. Load Current

Figure 12

DC Output Voltage

vs. Input Voltage

Figure 13

Quiescent Current

vs. Input Voltage

Figure 14

Shutdown Current

vs. Input Voltage

Figure 15

Junction Temperature

vs. GPIO Voltage

Figure 16

PWM Operation

Figure 17

Down-Mode Operation

Figure 18

Voltage Mode Load Transient Response

Figure 19

Down-Mode Line Transient Response

Figure 20

Duty Cycle Jitter

Figure 21

Input Ripple Voltage

Figure 22

Low-Light Dimming Mode Operation

Figure 23

Torch/Flash Sequence

Figure 24

TX-Masking Operation

Figure 25, Figure 26, Figure 27

Junction Temperature Monitoring

Figure 28

Start-up Into Torch Operation

Figure 29, Figure 30

LED POWER EFFICIENCY

vs

INPUT VOLTAGE

Figure 4.

Figure 5.

9

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