SP6120 Datasheet, PDF (3/22 Pages) Sipex Corporation – Low Voltage, AnyFETTM, Synchronous ,Buck Controller Ideal for 2A to 10A, High Performance, DC-DC Power Converters

ELECTRICAL CHARACTERISTICS
Unless otherwise specified: 3.0V < V_CC <5.5V, 3.0V < BST < 13.2, R_OSC = 18.7kΩ, C_COMP = 0.1µF, C_SS = 0.1µF, ENABLE = 3V,
CGH = CGL = 3.3nF, V_FB = 1.25V, ISP = ISN = 1.25V, SWN = GND = PGND = 0V, -40°C < T_AMB <85°C (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SOFTSTART
SS Charge Current
SS Discharge Current
V_SS = 1.5V
V_SS = 1.5V
25
50
70
µA
2
5
7
µA
COMP Discharge Current
V_COMP = 0.5V, Fault Initiated
200
500
-
µA
COMP Clamp Voltage
V_FB < 1.0V, V_SS = 2.5V
2.1
2.4
2.8
V
SS Ok Threshold
1.8
2.0
2.2
V
SS Fault Reset
0.2
0.25
0.3
V
SS Clamp Voltage
2.1
2.4
2.8
V
OVER CURRENT & ZERO CURRENT COMPARATORS
Over Current Comparator Threshold
Voltage
Rail to Rail Common Mode Input
32
43
54
mV
ISN, ISP Input Bias Current
-
60
250
nA
Zero Current Comparator Threshold VISP - VISN
2
mV
ENABLE/UVLO
V_CC Start Threshold
V_CC Stop Threshold
V_CC Hysteresis
Enable Threshold
2.75
2.85
2.95
V
2.65
2.75
2.9
V
100
mV
0.65
1.1
1.45
V
Enable Pin Source Current
0.6
4
9
µA
GATE DRIVER
GH Rise Time
GH Fall Time
GL Rise Time
GL Fall Time
GH to GL Non-Overlap Time
GL to GH Non-Overlap Time
V_CC > 4.5V
V_CC > 4.5V
V_CC > 4.5V
V_CC > 4.5V
V_CC > 4.5V
V_CC > 4.5V
-
40
110
ns
-
40
110
ns
-
40
110
ns
-
40
110
ns
60
ns
60
ns
Note 1: Specifications to -40°C are guaranteed by design, characterization and correlation with statistical process control.
Date: 5/25/04
SP6120 Low Voltage, AnyFET^TM, Synchronous, Buck Controller
3
© Copyright 2004 Sipex Corporation