Datasheet

TPS659110, TPS659112, TPS659113, TPS659116
SWCS049L –JUNE 2010–REVISED MARCH 2014 www.ti.com
VDDCtrl SMPS (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUTPUT DRIVERS
R
(DRVH)
DRVH resistance Source, I
(DRVH)
= –50 mA 1.5 3
Sink, I
(DRVH)
= 50 mA 0.7 1.8
Ω
R(DRVL) DRVL resistance Source, I
(DRVL)
= –50 mA 1 2.2
Sink, I
(DRVL)
= 50 mA 0.5 1.2
t
D
Dead time DRVH-off to DRVL-on 7 17 30
ns
DRVH-off to DRVL-on 10 22 35
BOOT STRAP SWITCH
V
(FBST)
Forward voltage V
(V5IN-VBST)
, I
F
= 10 mA, T
A
= 25°C 0.1 0.2 V
VBST leakage
I
lkg
V
(VBST
) = 34.5 V, V
(SW)
= 28 V, T
A
= 25°C 0.01 1.5 µA
current
DUTY AND FREQUENCY CONTROL
t
OFF(min)
Minimum off-time TA = 25°C 150 260 400
ns
V
IN
= 28 V, V
OUT
= 0.6 V, T
A
= 25°C
t
ON(min)
Minimum on-time 86
specified by design, not production tested.
Switching
f
SW
T
A
= 25°C 312 340 368 kHz
frequency
SOFTSTART
t
ss
Internal SS time From V
(EN)
= high to V
OUT
= 95% 0.9 ms
PROTECTION: CURRENT SENSE
TRIP source
V
(TRIP)
= 1 V, T
A
= 25°C 9 10 11 µA
current
V
(TRIP)
TRIP current
temperature On the basis of 25°C 4700 ppm/°C
coefficient
Current limit
V
(TRIP)
threshold setting V
(TRIP-GND)
Voltage 0.2 3 V
range
V
(TRIP)
= 3 V 355 375 395
Current limit
V
OCL
V
(TRIP)
= 1.6 V 185 200 215 mV
threshold
V
(TRIP)
= 0.2 V 17 25 33
V
(TRIP)
= 3 V –395 –375 –355
Negative current
V
OCLN
V
(TRIP)
= 1.6 V –215 –200 –185 mV
limit threshold
V
(TRIP)
= 0.2 V –33 –25 –17
Positive 3 15
Auto zero cross
mV
adjustable range
Negative –15 –3
UVLO
Wake up 4.2 4.38 4.5
V5IN UVLO threshold V
Shutdown 3.7 3.93 4.1
THERMAL SHUTDOWN
Shutdown temperature
Specified by design. Not production 145
tested.
Thermal shutdown
T
SDN
°C
threshold
Hysteresis
Specified by design. Not production 10
tested.
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