ISL6446A Datasheet, PDF (6/20 Pages) Intersil Corporation – Dual (180°Out-of-Phase) PWM and Linear Controller

ISL6446A
Absolute Maximum Ratings (Note 4)
VCC to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.0V
PGOOD to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
SS1/EN1, SS1/EN2 to SGND . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
COMP1, COMP2 to SGND . . . . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
FB1, FB2, RT to SGND . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
LCDR, LCFB to SGND . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
VIN, OCSET1, and OCSET2 to PGND. . . . . . . . . . . . . . . . . . . . . -0.3V to +28V
BOOT1 and BOOT2 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +33V
BOOT1 to PHASE1, and BOOT2 to PHASE2. . . . . . . . . . . . . . -0.3V to +6.0V
UGATE1 to PHASE1 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (BOOT1 + 0.3V)
UGATE2 to PHASE2 . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to (BOOT2 + 0.3V)
LGATE1, LGATE2 to PGND . . . . . . . . . . . . . . . . . . . . . . .-0.3V to (VCC + 0.3V)
PHASE1, PHASE2 to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1V to +28V
SGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 0.3V
ESD Rating
Human Body Model (Tested per JESD22-A114E) . . . . . . . . . . . . . . 2500V
Machine Model (Tested per JESD22-115-A) . . . . . . . . . . . . . . . . . . . 100V
Latch Up (Tested per JEDEC-78B Level II Class A) . . . . ±100mA @ +85°C
Thermal Information
Thermal Resistance (Typical)
θ_JA (°C/W) θ_JC (°C/W)
QSOP Package (Notes 5, 6). . . . . . . . . . . . .
75
36
Maximum Junction Temperature (Plastic Package) . . . .-55°C to +150°C
Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
V_CC Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V ±10%
V_IN Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.5V to 24V
OCSET1 and OCSET2 to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . -1.4V to +1.4V
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4. All voltages are measured with respect to GND.
5. 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.
6. For θ_JC, the “case temp” location is taken at the package top center.
Electrical Specifications Operating Conditions Unless Otherwise Noted: V_IN = 12V, or V_CC = 5V ±10%, T_A = -40°C to +85°C. Typical
values are at +25°C. Boldface limits apply over the operating temperature range, -40°C to +85°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 9)
TYP
MAX
(Note 9)
UNITS
VIN SUPPLY
Input Operating Supply Current
I_{CC_op} V_IN = 5.5V or 12V; LGATE_x, UGATE_x Open, FB
forced above regulation point (no switching)
4.5
7.5
mA
Input Standby Supply Current
I_{CC_sb} V_IN = 5.5V, 12V, 24V;
SS1/EN1 = SS2/EN2 = 0V
1.25
3
mA
VCC INTERNAL REGULATOR
Output Voltage
V_VCC V_IN = 5.6V, SS1/EN1 = SS2/EN2 = 0V
4.5
5.35
V
No Additional Load
Output Voltage
V_VCC
V_IN = 24V, SS1/EN1 = SS2/EN2 = 0V
No Additional Load
5.36
5.6
V
Output Voltage
V_VCC V_IN = 12V, SS1/EN1 = SS2/EN2 = 0V
4.5
5.2
V
IVCC= 80mA
VCC Current Limit (Note 7)
REFERENCE AND SOFT-START
I_{ICC_CL} VCC is pulled to PGND; (Note 8)
300
mA
Reference Voltage at FB1, FB2
Reference Voltage at FB1, FB2
EN_x/SS_x Soft-Start Current
EN_x/SS_x Enable Threshold
V_REF1,
V_REF2
V_REF1,
V_REF2
I_SSx
V_ENx
V_IN = 5V or 12V; T_A = +25°C
V_IN = 5V or 12V; T_A = 0°C to +85°C
V_IN = 5V or 12V; T_A = -40°C to +85°C
V_IN = 24V; T_A = +25°C
V_IN = 24V; T_A = 0°C to +85°C
V_IN = 24V; T_A = -40°C to +85°C
0.6000
V
0.5925
0.6085
V
0.5900
0.6085
V
0.6015
V
0.5930
0.6100
V
0.5915
0.6100
V
20
30
40
µA
850
940
1050
mV
6
FN8384.1
November 6, 2012