ltc3810 Linear Technology Corporation, ltc3810 Datasheet - Page 3

• Manufacturer Part Number: ltc3810
• Description: 100v Current Mode Synchronous Switching Regulator Controller
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
= 10V, V
SYMBOL
ΔV
V
V
I
A
f
V
I
V
I
V
V
Oscillator and Phase-Locked Loop
t
t
t
t
I
Driver
I
R
I
R
PGOOD Output
ΔV
ΔV
V
I
VFB
U
MODE/SYNC
SHDN
ON
ON(MIN)
OFF(MIN)
ON(PLL)
PLL/LPF
BG,PEAK
TG,PEAK
PGOOD
VOL
VINUV
VCCUV
SENSE(MAX)
SENSE(MIN)
MODE/SYNC
SHDN
TG,SINK
PGOOD
BG,SINK
FB,LINE
FBOV
FB,HYST
(EA)
MODE/SYNC
= V
PARAMETER
Feedback Voltage Line Regulation
Maximum Current Sense Threshold
Minimum Current Sense Threshold
Feedback Current
Error Amplifi er DC Open Loop Gain
Error Amp Unity Gain Crossover
Frequency
MODE/SYNC Threshold
MODE/SYNC Current
Shutdown Threshold
SHDN Pin Input Current
V
On-Time
Minimum On-Time
Minimum Off-Time
BG Driver Peak Source Current
BG Driver Pulldown R
TG Driver Peak Source Current
TG Driver Pulldown R
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
PGOOD Leakage Current
INTV
t
Phase Detector Output Current
ON
IN
Linear Regulator Mode
External Supply Mode
Trickle-Charge Mode
Sinking Capability
Sourcing Capability
Down Modulation
Up Modulation
SENSE
Undervoltage Lockout
Modulation Range by PLL
CC
Undervoltage Lockout
+
= V
SENSE
–
DS(ON)
DS(ON)
= V
BGRTN
= V
SW
A
= 25°C, INTV
= 0V, unless otherwise specifi ed.
CONDITIONS
7V < INTV
V
V
V
V
V
V
V
(Note 6)
V
V
V
Hysteresis
INTV
INTV
INTV
INTV
I
I
I
I
I
f
f
V
V
V
V
V
I
V
ON
ON
ON
ON
ON
PLLIN
PLLIN
PGOOD
TG
RNG
RNG
RNG
RNG
RNG
RNG
FB
MODE/SYNC
IN
IN
BG
FB
FB
FB
PGOOD
The
Rising
Falling
= 100μA
= 300μA
= 2000μA
= 100μA, V
= 100μA, V
= 0.8V
Rising
Falling
Returning
– V
= 0V
CC
CC
CC
CC
= 2V, V
= 0V, V
= INTV
= 2V, V
= 0V, V
= INTV
< f
> f
= 5mA
Rising, NDRV = INTV
SW
Rising, I
Rising, NDRV = INTV
Falling
= 5V
l
SW
SW
CC
denotes specifi cations which apply over the full operating
= 0V
Rising
FB
FB
CC
FB
FB
CC
CC
< 14V (Note 4)
, V
, V
PLL/LPF
PLL/LPF
= 0.76V
= 0.76V
= 0.84V
= 0.84V
= DRV
NDRV
FB
FB
= 0.76V
= 0.84V
= 100μA
= 0.6V
= 1.8V
CC
= V
CC
CC
BOOST
, EXTV
= EXTV
CC
= V
CC
= 0
ON
= V
l
l
l
l
l
l
RNG
= ⎯ S ⎯ H ⎯ D ⎯ N = UV
–7.5
0.75
0.86
0.78
0.07
6.05
6.05
11.7
1.55
MIN
7.5
256
170
515
1.2
2.2
0.6
1.5
1.5
70
65
0.002
–10
–300
–200
0.88
0.80
0.10
1.85
10
TYP
320
215
–85
100
605
250
–25
0.8
1.5
6.2
6.2
6.0
3.6
1.2
1.5
0.3
95
20
25
12
15
0
0
2
1
2
1
0
IN
LTC3810
= V
–12.5
EXTVCC
12.5
MAX
0.02
0.85
0.92
0.82
0.12
6.35
6.35
12.3
2.15
384
120
260
150
695
100
350
1.8
1.5
1.5
0.6
1
2
1
5
3
2
= V
UNITS
3810fa
NDRV
3
MHz
%/V
mV
mV
mV
mV
mV
mV
nA
dB
μA
μA
μA
μA
μA
μs
ns
ns
ns
μs
μs
%
%
%
Ω
Ω
V
V
V
V
V
V
V
V
V
A
A
V