ISL6744 Datasheet, PDF (4/18 Pages) Intersil Corporation – Intermediate Bus PWM Controller

ISL6744
Absolute Maximum Ratings
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
OUTA, OUTB . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to V_DD
Signal Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 5V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1A
ESD Classification
Human Body Model (Per MIL-STD-883 Method 3015.7) . . .2000V
Machine Model (Per EIAJ ED-4701 Method C-111) . . . . . . . .100V
Charged Device Model (Per EOS/ESD DS5.3, 4/14/93) . . .1000V
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (°C/W)
8 Lead MSOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
128
8 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
98
Maximum Junction Temperature . . . . . . . . . . . . . . . . -55°C to 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
Operating Conditions
Temperature Range
ISL6744AU . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 105°C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . . . . 9-16 VDC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
2. All voltages are to be measured with respect to GND, unless otherwise specified.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
schematic. 9V < V_D < 16V, R_TD = 51.1kΩ, C_T = 470pF, T_A = -40°C to 105°C (Note 4), Typical values are at
T_A = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY VOLTAGE
Start-Up Current, I_DD
Operating Current, I_DD
UVLO START Threshold
V_DD < START Threshold
R_LOAD, C_OUTA,B = 0
C_OUTA,B = 1nF
-
-
175
µA
-
2.89
-
mA
-
5
8.5
mA
5.9
6.3
6.6
V
UVLO STOP Threshold
5.3
5.7
6.3
V
Hysteresis
-
0.6
-
V
CURRENT SENSE
Current Limit Threshold
0.55
0.6
0.65
V
CS to OUT Delay
(Note 4)
-
35
-
ns
CS Sink Current
8
10
-
mA
Input Bias Current
-1
-
1
µA
PULSE WIDTH MODULATOR
Minimum Duty Cycle
Maximum Duty Cycle
C_T to SS Comparator Input Gain
SS to SS Comparator Input Gain
V_ERROR < C_T Offset
C_T = 470pF, R_TD = 51.1kΩ
C_T = 470pF, R_TD = 1.1kΩ (Note 4)
(Note 4)
(Note 4)
-
-
0
%
-
94
-
%
-
99
-
%
-
1
-
V/V
-
0.8
-
V/V
4
FN9147.8
September 22, 2005