Datasheet

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TPS54610
SLVS398F – JUNE 2001 – REVISED APRIL 2007
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
PWM COMPARATOR
PWM comparator propagation delay
time,PWM comparator input to PH pin 10-mV overdrive
(1)
70 85 ns
(excluding deadtime)
SLOW-START/ENABLE
Enable threshold voltage, SS/ENA 0.82 1.20 1.40 V
Enable hysteresis voltage, SS/ENA 0.03 V
Falling edge deglitch, SS/ENA
(1)
2.5 µ s
Internal slow-start time 2.6 3.35 4.1 ms
Charge current, SS/ENA SS/ENA = 0 V 3 5 8 µ A
Discharge current, SS/ENA SS/ENA = 1.2 V, V
I
= 2.7 V 2 2.3 4 mA
POWER GOOD
Power good threshold voltage VSENSE falling 90 %V
ref
Power good hysteresis voltage
(4)
3 %V
ref
Power good falling edge deglitch
(4)
35 µ s
Output saturation voltage, PWRGD I
(sink)
= 2.5 mA 0.18 0.3 V
Leakage current, PWRGD V
I
= 5.5 V 1 µ A
CURRENT LIMIT
V
I
= 3 V Output shorted
(4)
7.2 10
Current limit trip point A
V
I
= 6 V Output shorted
(4)
10 12
Current limit leading edge blanking time
(4)
100 ns
Current limit total response time
(4)
200 ns
THERMAL SHUTDOWN
Thermal shutdown trip point
(4)
135 150 165 ° C
Thermal shutdown hysteresis
(4)
10 ° C
OUTPUT POWER MOSFETS
V
I
= 6 V
(5)
26 47
r
DS(on)
Power MOSFET switches m Ω
V
I
= 3 V
(5)
36 65
(4) Specified by design
(5) Matched MOSFETs low-side r
DS(on)
production tested, high-side r
DS(on)
specified by design
4
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