sc1154 Semtech Corporation, sc1154 Datasheet - Page 7

• Manufacturer Part Number: sc1154
• Description: Programmable Synchronous Dc/dc Hysteretic Controller For Advanced Processors
• Manufacturer: Semtech Corporation

ELECTRICAL CHARACTERISTICS (cont.)
PRELIMINARY - March 1, 2000
Unless specified: 0 < T
PARAMETER
HIGH-SIDE OUTPUT DRIVER (cont.)
Output Resistance
LOW-SIDE OUTPUT DRIVER
Peak Outout Current
Output Resistance
HYSTERETIC COMPARATORS
Propagation Delay Time
from
VSENSE to HIGHDR or
LOWDR (excluding
deadtime)
OUTPUT DRIVERS
HIGHDR rise/fall time
LOWDR rise/fall time
OVERCURRENT PROTECTION
Comparator Propagation
Delay Time
Deglitch Time
OVERVOLTAGE PROTECTION
Comparator Propagation
Delay Time
Deglitch Time
© 2000 SEMTECH CORP.
J <
125°C, VIN12V = 12V
Rsink
Rsink
Rsrc
Rsrc
SYMBOL
Isink
Isrc
(1)
tr
(1)
tr
t
t
t
tf
t
OCPROP
t
HCPROP
,
OVPROP
LOWDR ,
tf
OCDGL
OVDGL
HIGHDR
LOWDR
LOWDR’
HIGHDR
HIGHDR’
LOWDR’
LOWDR
HIGHDR
LOWDR
T
V
V
T
V
V
duty cycle < 2%, tpw < 100us,
T
V
(src), or V
(Note 1)
T
V
T
V
Cl = 9nF,
V
T
Cl = 9nF,
T
10mV overdrive,
1.3V < Vref < 3.5V
PROGRAMMABLE SYNCHRONOUS
DC/DC HYSTERETIC CONTROLLER
FOR ADVANCED PROCESSORS
J
BOOT
HIGHDR
J
BOOT
HIGHDR
J
DRV
J
DRV
J
DRV
BOOTLO
J
J
= 125 C
= 125 C
= 125 C
= 125 C
= 125 °C
= 125 °C
= 125 C
= 6.5V, V
= 6.5V, V
= 6.5V, V
- V
- V
= 6V
= 0.5V
= grounded,
CONDITIONS
BOOTLO
BOOTLO
LOWDR
V
V
BOOT
DRV
LOWDR
LOWDR
LOWDR
= 6.5V,
= 6.5V,
= 5V (sink)
= 6.5v,
= 6.5v,
652 MITCHELL ROAD NEWBURY PARK CA 91320
= 1.5V
= 6V
= 0.5V
MIN
2
1
1
TYP
150
1
1
MAX
250
45
45
60
60
5
5
3
3
SC1154
UNITS
ns
ns
ns
µs
µs
µs
µs
A
7