TPS2552_09 Datasheet, PDF (6/31 Pages) Texas Instruments – PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES

TPS2552
TPS2553, TPS2552-1, TPS2553-1
SLVS841C – NOVEMBER 2008 – REVISED SEPTEMBER 2009...................................................................................................................................... www.ti.com
PARAMETER MEASUREMENT INFORMATION
OUT
t_r
RL
CL
V_OUT
90%
10%
t_f
90%
10%
TEST CIRCUIT
V_EN
50%
50%
t_on
V_OUT
90%
t_off
10%
V_EN
t_on
V_OUT
50%
90%
VOLTAGE WAVEFORMS
Figure 2. Test Circuit and Voltage Waveforms
50%
toff
t_off
10%
I_OS
I_OUT
t_IOS
Figure 3. Response Time to Short Circuit Waveform
V_OUT
Decreasing
Load Resistance
Decreasing
Load Resistance
I_OUT
I_OS
Figure 4. Output Voltage vs. Current-Limit Threshold
6
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