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TPSM63610
SLVSGU1 – NOVEMBER 2022
7.5 Electrical Characteristics (continued)
Limits apply over the recommended operating junction temperature range of -40°C to +125°C, unless otherwise noted.
Minimum and Maximum limits are specified through test, design or statistical correlation. Typical values represent the most
likely parametric norm at T
conditions apply: V
= 12. VIN1 shorted to VIN2 = V
IN
PARAMETER
Oscillator frequency measured using
f
minimum value of RT resistor to select
FIXED_0.4MHz
0.4 MHz
f
Center Trim oscillator frequency
ADJ
V
SYNC/MODE input voltage low
SYNCDL
V
SYNC/MODE input voltage high
SYNCDH
V
SYNC/MODE input voltage hysteresis
SYNCD_HYST
Internal pulldown resistor to ensure
R
SYNC
SYNC/MODE doesn't float
High and Loww duration needed for
t
synchronizing clock to be recognized on
SYNC_EDGE
SYNC/MODE pin
Time at one level needed to indicate
t
MSYNC
FPWM or Auto Mode
Time needed for clock to lock to a valid
t
LOCK
synchronization signal
SPREAD SPECTRUM
Frequency increase of internal oscillator
ΔFc+
from spread spectrum
Frequency decrease of internal
ΔFc-
oscillator from spread spectrum
HIGH SIDE DRIVE (CBOOT PIN)
Voltage on CBOOT pin compared to
V
CBOOT_UVLO
SW which will turnoff high-side switch
MOSFETS
R
High-side MOSFET on-resistance
DS-ON-HS
R
Low-side MOSFET on-resistance
DS-ON-LS
PWM LIMITS (SW PIN)
t
Minimum HS switch on-time
ON-MIN
t
Minimum HS switch off-time
OFF-MIN
t
Maximum switch on-time
ON-MAX
D
Maximum switch duty cycle
MAX
START UP
t
Turn-on delay
EN
Time from first SW pulse to V
t
SS
90%, of set point.
t
Short circuit wait time ("hiccup" time)
W
8
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= 25°C, and are provided for reference purposes only. Unless otherwise stated the following
J
IN
RT = 40.2 kΩ
RT = 22.6 kΩ
RT = 39.2 kΩ
Load = 1 A, C
Load = 1 A, C
V
R
V
HS timeout in dropout
While in frequency fold-back
fsw =1.85 MHz
V
high to first SW pulse if output starts at
0 V
at
REF
Product Folder Links:
. V
is output set point.
OUT
TEST CONDITIONS
= 3.2 V
BOOT-SW
= 3.2 V
BOOT-SW
=18 V, V
= 5 V, I
IN
SYNC/MODE
OUT
= 0 Ω
BOOT
= 5 V
IN
= 12 V, C
= 1 µF, time from EN
IN
VCC
TPSM63610
MIN
TYP
352
400
630
700
0.4
0.185
100
100
7
4.3
1
4
-8
-4
1.9
21
13
= 2A,
62
70
6.9
8.9
98
87
0.82
1.6
2.2
40
Copyright © 2022 Texas Instruments Incorporated
www.ti.com
MAX
UNIT
448
kHz
770
kHz
V
1.7
V
1
V
kΩ
ns
20
µs
ms
7.5
%
-1
%
V
39
mΩ
25
mΩ
81
ns
103
ns
11
µs
%
1.2
ms
2.7
ms
ms
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