LM3555TLE Datasheet, PDF (13/33 Pages) Texas Instruments – LM3555 Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface

LM3555
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SNVS594E – JANUARY 2009 – REVISED NOVEMBER 2011
Typical Characteristics (continued)
Unless otherwise specified: T_A = 25°C; V_IN = 3.6V; C_IN1= 10 µF, C_IN2= 0.1 µF, C_OUT = 11 µF; L = 2.2 µH.
Diode Detect - 2 LEDs
Torch
Over-Voltage Protection Fault (OVP)
I_IN
(500 mA/DIV)
V_OUT
(5V/DIV)
V_LED
(5V/DIV)
I_IN
(500 mA/DIV)
I_LED
(20 mA/DIV)
Time
(80 Ps/DIV)
VOUT Short to GND Fault
V_OUT
(2V/DIV)
V_LED
(2V/DIV)
Time
(400 Ps/DIV)
VLED Short to GND Fault
I_IN
(500 mA/DIV)
V_OUT
(2V/DIV)
V_LED
(5V/DIV)
I_LED
(50 mA/DIV)
Time
(1 ms/DIV)
Broken Inductor Fault
I_IN
(500 mA/DIV)
V_OUT
(2V/DIV)
V_LED
(2V/DIV)
Time
(80 Ps/DIV)
Torch Deglitching Time
I_IN
(500 mA/DIV)
V_OUT
(2V/DIV)
V_LED
(5V/DIV)
I_LED
(50 mA/DIV)
Time
(1 ms/DIV)
Under-Voltage Lockout (UVLO)
V_IN
(2V/DIV)
V_OUT
(5V/DIV)
V_LED
(5V/DIV)
I_LED
(50 mA/DIV)
Time
(400 ms/DIV)
Edge Sensitive Strobe
V_TORCH
(1V/DIV)
V_STROBE
(1V/DIV)
I_LED
(20 mA/DIV)
Time
(10 ms/DIV)
I_LED
(100 mA/DIV)
Time
(100 ms/DIV)
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