LTC3816_15 Datasheet, PDF (4/44 Pages) Linear Technology – Single-Phase Wide VIN Range DC/DC Controller for Intel IMVP-6/IMVP-6.5 CPUs

LTC3816
Electrical Characteristics 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)
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
V
1.1
V
V_OVF
Overvoltage Fault Threshold
V_IMON = INTV_CC (IMVP-6 Configuration) l
V_IMON < 1.1V (IMVP-6.5 Configuration)
l
1.65
1.7
V
1.53
1.55
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
µA
–40
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
l –9
–10
–11
µA
V_IMAX = 0V, 2× Current Limit Duration
–20
µA
t_IMAX2×
2× Current Limit Duration
2× Current Limit Period
35
45
µs
630
µs
V_ILIM
V_IREV
I_ISENP
Current Comparator Offset
Reverse-Current Comparator Offset
I_SENP Input Current
V_IMAX = 1.0V, V_ILIM = V_ISENP – V_IMAX
V_ISENN = 1.0V, V_IREV = V_ISENP – V_ISENN
0V ≤ V_ISENP ≤ 1.5V
±3
mV
±2
mV
±1
µA
I_ISENN
I_SENN Input Current
0V ≤ V_ISENN ≤ 1.5V
±20
µA
V_IMON
I_VRON
VR_ON
IMVP-6/IMVP-6.5 Selection Threshold
Regulator On Source Current
Regulator On Threshold
Regulator Power-Down Threshold
VR_ON = 0V
Rising Edge
Falling Edge
2.4
V
–1
µA
1.18
1.2
1.22
V
0.65
V
Oscillator and Drivers
f_OSC
f_SYNC
Oscillator Frequency
Minimum Synchronization Input Frequency
Maximum Synchronization Input Frequency
RFREQ Floats
V_RFREQ = 0V
V_RFREQ = 2.5V
375
400
425
kHz
180
210
240
kHz
530
580
640
kHz
150
kHz
550
kHz
V_SYNC
I_RFREQ
V_MODE
DC_MAX
t_ON(MIN)
t_DEAD
TG R_UP
TG R_DOWN
BG R_UP
BG R_DOWN
MODE/SYNC Synchronization Threshold
RFREQ Source Current
MODE/SYNC Force Continuous Threshold
Maximum TG Duty Cycle
TG Minimum Pulse Width
Driver Dead-Time
TG Driver Pull-Up On-Resistance
TG Driver Pull-Down On-Resistance
BG Driver Pull-Up On-Resistance
BG Driver Pull-Down On-Resistance
V_RFREQ = 0V
V_IMON = INTV_CC (IMVP-6 Configuration)
V_IMON < 1.1V (IMVP-6.5 Configuration)
MODE/SYNC = 0, RFREQ Floats
(Note 6)
TG High, I_OUT = –100mA (Note 7)
TG Low, I_OUT = 100mA (Note 7)
BG High, I_OUT = –100mA (Note 7)
BG Low, I_OUT = 100mA (Note 7)
1.6
V
–9
–10
–11
µA
1.6
V
0.5
V
90
%
35
ns
30
ns
2.6
Ω
1.2
Ω
2.6
Ω
0.9
Ω
3816f