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