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TPS92638-Q1 Datasheet(PDF) 11 Page - Texas Instruments

Part # TPS92638-Q1
Description  8-Channel Linear LED Driver With PWM Dimming
Download  39 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS92638-Q1 Datasheet(HTML) 11 Page - Texas Instruments

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TPS92638-Q1
www.ti.com
SLVSCK5B – SEPTEMBER 2014 – REVISED MARCH 2015
Typical Characteristics (continued)
CH1: V(SUPPLY)
CH2: V(FAULT)
CH3: V(REF)
CH1: V(SUPPLY)
CH2: V(FAULT)
CH3: V(REF)
CH4: I(IOUT8)
CH4: I(IOUT8)
Figure 26. Slow Power Down (V(SUPPLY), V(EN), V(PWMx) Fall
Figure 25. Slow Power Up (V(SUPPLY), V(EN), V(PWMx) Rise
Together From 14 V to 0 V by 0.2 V/s)
Together From 0 V to 14 V by 0.2 V/s)
CH1: V(REFHI)
CH2: V(REF)
CH3: I(IOUT1)
CH1: V(PWM3)
CH2: V(PWM4)
CH3: V(REF)
CH4: I(IOUT8)
CH4: I(IOUT8)
Duty cycle = 50%
V(SUPPLY), V(EN) = 14 V
Figure 28. Load Transient, I(IOUTx) Increases From 35 mA to
Figure 27. PWM Dimming, Dimming Frequency = 1000 Hz
70 mA
CH1: V(SUPPLY)
CH2: V(REF)
CH3: V(FAULT)
CH1: V(REFHI)
CH2: V(REF)
CH3: I(IOUT1)
I(IOUTx) = 35 mA
CH4: I(IOUT8)
Figure 30. Line Transient, V(SUPPLY), V(EN), V(PWMx) Ramp
Figure 29. Load Transient, I(IOUTx) Decreases From 70 mA to
From 9 V to 16 V to 9 V by 0.1 V/µs
35 mA
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