Datasheet
LTC3816
4
3816f
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
BOOT
Core Supply Start-Up Voltage V
IMON
= INTV
CC
(IMVP-6 Configuration)
V
IMON
< 1.1V (IMVP-6.5 Configuration)
1.2
1.1
V
V
V
OVF
Overvoltage Fault Threshold V
IMON
= INTV
CC
(IMVP-6 Configuration)
V
IMON
< 1.1V (IMVP-6.5 Configuration)
l
l
1.65
1.53
1.7
1.55
V
V
I
SS
SS Pull-Up Current V
SS
= 0V –1 µA
I
CSLEW
CSLEW Pull-Up Current V
CSLEW
= 0V
IMVP-6 and V
DPRSLPVR
= INTV
CC
IMVP-6.5 or V
DPRSLPVR
= 0V
–10
–40
µA
µA
I
RPTC
RPTC Source Current RPTC = 0V –90 –100 –110 µA
V
RPTC
RPTC Thermal Shutdown Threshold 0.47 V
I
MAX
I
MAX
Source Current
V
IMAX
= 0V, 1× Current Limit Duration
V
IMAX
= 0V, 2× Current Limit Duration
l
–9 –10
–20
–11 µA
µA
t
IMAX2×
2× Current Limit Duration
2× Current Limit Period
35 45
630
µs
µs
V
ILIM
Current Comparator Offset V
IMAX
= 1.0V, V
ILIM
= V
ISENP
– V
IMAX
±3 mV
V
IREV
Reverse-Current Comparator Offset V
ISENN
= 1.0V, V
IREV
= V
ISENP
– V
ISENN
±2 mV
I
ISENP
I
SENP
Input Current 0V ≤ V
ISENP
≤ 1.5V ±1 µA
I
ISENN
I
SENN
Input Current 0V ≤ V
ISENN
≤ 1.5V ±20 µA
V
IMON
IMVP-6/IMVP-6.5 Selection Threshold 2.4 V
I
VRON
Regulator On Source Current VR
ON
= 0V –1 µA
VR
ON
Regulator On Threshold
Regulator Power-Down Threshold
Rising Edge
Falling Edge
1.18 1.2
0.65
1.22 V
V
Oscillator and Drivers
f
OSC
Oscillator Frequency RFREQ Floats
V
RFREQ
= 0V
V
RFREQ
= 2.5V
375
180
530
400
210
580
425
240
640
kHz
kHz
kHz
f
SYNC
Minimum Synchronization Input Frequency
Maximum Synchronization Input Frequency
550
150 kHz
kHz
V
SYNC
MODE/SYNC Synchronization Threshold 1.6 V
I
RFREQ
RFREQ Source Current V
RFREQ
= 0V –9 –10 –11 µA
V
MODE
MODE/SYNC Force Continuous Threshold V
IMON
= INTV
CC
(IMVP-6 Configuration)
V
IMON
< 1.1V (IMVP-6.5 Configuration)
1.6
0.5
V
V
DC
MAX
Maximum TG Duty Cycle MODE/SYNC = 0, RFREQ Floats 90 %
t
ON(MIN)
TG Minimum Pulse Width (Note 6) 35 ns
t
DEAD
Driver Dead-Time 30 ns
TG R
UP
TG Driver Pull-Up On-Resistance TG High, I
OUT
= –100mA (Note 7) 2.6 Ω
TG R
DOWN
TG Driver Pull-Down On-Resistance TG Low, I
OUT
= 100mA (Note 7) 1.2 Ω
BG R
UP
BG Driver Pull-Up On-Resistance BG High, I
OUT
= –100mA (Note 7) 2.6 Ω
BG R
DOWN
BG Driver Pull-Down On-Resistance BG Low, I
OUT
= 100mA (Note 7) 0.9 Ω
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, BSOURCE = EXTV
CC
= 0V, VR
ON
= 5V, unless
otherwise noted. (Notes 2, 3)