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| LM3646_16 Datasheet, PDF (30/40 Pages) Texas Instruments – 1.5-A Synchronous Boost Converter | |||
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LM3646
SNVS962A â DECEMBER 2013 â REVISED NOVEMBER 2014
Unless otherwise specified: TA= 25°C; VIN = 3.6 V; VEN = VIN; CIN = 10 µF; COUT = 10 µF; L = 1 µH.
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tFILTER = ¼*tUVLO
tRAMP = 256µs
VHYST = 0mV
VIN = 200 mV/div
IIN = 1 A/div
ILED = 500 mA/div
tFILTER = ¼*tUVLO
tRAMP = 256µs
VHYST = 100mV
VIN = 200 mV/div
IIN = 1 A/div
ILED = 500 mA/div
t ± Time Base ± 100 µs/div
Figure 55. Input Voltage Flash Monitor, Up & Down Mode,
tFILTER = 256µs
tRAMP = 256µs
VHYST = 50mV
VIN = 200 mV/div
IIN = 1 A/div
ILED = 500 mA/div
t ± Time Base ± 100 µs/div
Figure 56. Input Voltage Flash Monitor, Up & Down Mode,
tFILTER = ¼*tUVLO
tRAMP = 512µs
VHYST = 50mV
VIN = 200 mV/div
IIN = 1 A/div
ILED = 500 mA/div
t ± Time Base ± 200 µs/div
Figure 57. Input Voltage Flash Monitor, Up & Down Mode
tFILTER = ¼*tUVLO
tRAMP = 256µs
VHYST = 50mV
VTX = 5 V/div
VIN = 200 mV/div
t ± Time Base ± 100 µs/div
Figure 58. Input Voltage Flash Monitor, Up & Down Mode
VSTROBE = 2 V/div
IIN = 1 A/div
ILED = 1 A/div
t ± Time Base ± 400 µs/div
Figure 59. Input Voltage Flash Monitor, Up & Down Mode
with TX Event
ILED = 500 mA/div
t ± Time Base ± 20 ms/div
Figure 60. Edge-Sensitive Strobe
30
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