ISL6401 Datasheet, PDF (4/11 Pages) Intersil Corporation – Synchronizing Current Mode PWM for Subscriber Line Interface Circuits (SLICs)

ISL6401
Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. V_CC = +5.0V ±10%, T_A = -40 to 85°C (Note 9), Typical values are at T_A = 25°C (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Start to Stop Hysteresis
0.2
0.5
0.8
V
SOFT-START - DIGITAL
COMP Rise Time
Rise from 0.5V to REF -1V
-
2048 clk
-
OSCILLATOR
Gate Output Frequency
Ct = 560pF
90
100
108
kHz
Gate Output Frequency Range
50
-
600
kHz
Temperature Stability
-
5
-
%
Sync. Frequency Range
1.1 Times the natural switching
-
frequency.
-
1.2
MHz
Sync Input HIGH
3.5
-
-
V
Sync Input LOW
-
-
1.5
V
Minimum Sync. Input Pulse Duty Cycle
-
20
-
%
OUTPUT
GATE Low Level
-
0.2
0.5
V
GATE High V_SAT
Rise Time
C load = 1500pF
4.4
4.9
5.5
V
-
35
-
ns
Fall Time
C load = 1500pF
-
40
-
ns
NOTES:
9. Specifications at -40°C are guaranteed by design, not production tested.
10. This is the V_CC current consumed when the device is active but not switching. Does not include gate drive current.
Typical Performance Curves
120
100
80
60
40
20
0
-40
-20
25
60
85
TEMPERATURE (°C)
FIGURE 1. FREQUENCY vs TEMPERATURE
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
-20
25
60
85
TEMPERATURE (°C)
FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE
4
FN9007.7
April 13, 2005