ISL6740A Datasheet, PDF (5/15 Pages) Intersil Corporation – Flexible Double-Ended Voltage-Mode PWM Controller with Voltage Feed Forward

ISL6740A
Absolute Maximum Ratings
Supply Voltage, V_DD . . . . . . . . . . . . . . . . . . . GND - 0.3V to +20.0V
OUTA, OUTB, Signal Pins . . . . . . . . . . . . . . . . .GND - 0.3V to V_REF
VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 6.0V
Peak GATE Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5A
ESD Classification
Human Body Model (Per MIL-STD-883 Method 3015.7) . . .1500V
Charged Device Model (Per EOS/ESD DS5.3, 4/14/93) . . .1000V
Thermal Information
Thermal Resistance Junction to Ambient (Typical)
θ_JA (°C/W)
16 Lead TSSOP (Note 1) . . . . . . . . . . . . . . . . . . .
102
Maximum Junction Temperature . . . . . . . . . . . . . . . . -55°C to 150°C
Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C
(TSSOP- Lead Tips Only)
Operating Conditions
Temperature Range
ISL6740AIVx. . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to 105°C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . 9VDC-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 with respect to GND.
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to Block Diagram and Typical Application
Schematic. 9V < V_DD < 20 V, R_TD = 51.1kΩ, R_TC = 10kΩ, C_T = 470pF, T_A = -40°C to 105°C (Note 3), 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
-
95
140
µA
-
5.0
8.0
mA
-
7.0
12.0
mA
6.50 7.25 8.00
V
UVLO STOP Threshold
6.00 6.75 7.50
V
Hysteresis
0.35 0.50 0.75
V
REFERENCE VOLTAGE
Overall Accuracy
Long Term Stability
Fault Voltage
I_VREF = 0, -20mA
T_A = 125°C, 1000 hours (Note 4)
4.900 5.000 5.050
V
-
3
-
mV
4.10 4.55 4.75
V
VREF Good Voltage
4.25
4.75 V_REF
V
-.05
Hysteresis
75
165
250
mV
Operational Current (source)
-20
-
-
mA
Operational Current (sink)
5
-
-
mA
Current Limit
-25
-
-100
mA
CURRENT SENSE
Current Limit Threshold
CS to OUT Delay
V_ERROR = V_REF
0.55
0.6
0.65
V
-
35
50
ns
CS Sink Current
-
10
-
mA
Input Bias Current
-1.00
-
1.00
µA
SCSET Input Impedance
1
-
-
MΩ
SC Setpoint Accuracy
-
10
-
%
PULSE WIDTH MODULATOR
V_ERROR Input Impedance
400
-
-
kΩ
5
FN9195.0
February 7, 2005