ISL9444IRZ-T7A Intersil, ISL9444IRZ-T7A Datasheet - Page 9

• Manufacturer Part Number: ISL9444IRZ-T7A
• Description: ISL9444 Triple, Step- Down PWM Controller IMVP-6. 40 Ld MLFP
• Manufacturer: Intersil
• Series: -r

Specifications of ISL9444IRZ-T7A

• Pwm Type: Current Mode
• Number Of Outputs: 3
• Frequency - Max: 1.32MHz
• Duty Cycle: -
• Voltage - Supply: 4.5 V ~ 28 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-VFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Absolute Maximum Ratings
VCC_5V to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.2V
EXTBIAS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC_5V+0.3V
VIN to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +30V
BOOT1,2,3/UGATE1,2,3 to PHASE1,2,3 . . . . . . . . . -0.3V to VCC_5V+0.3V
PHASE1,2,3 and
EN/SS1, EN2, EN3, FB1, FB2, FB3, to GND . . . . . . -0.3V to VCC_5V+0.3V
OCSET1, OCSET2, OCSET3, PG3_DLY, TKSS2, TKSS3, CLKOUT,
RT, MODE/SYNC to GND . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC_5V+0.3V
PFI, PFO, PGOOD1, 2, 3, to GND. . . . . . . . . . . . . . . . -0.3V to VCC_5V+0.3V
VCC_5V Short Circuit to GND Duration. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1s
ESD Rating
Latch Up (Tested per JESD78C; Class II, Level A, +85°C) . . . . . . . . 100mA
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:
Electrical Specifications
Application Schematics on pages 6 and 7. V
T
V
V
V
I
I
VCC_5V SUPPLY
V
I
EXTBIAS SUPPLY
V
V
R
UNDERVOLTAGE LOCKOUT
V
V
EN/SS1, EN2, EN3 THRESHOLD
V
V
V
A
VINQ
VINOP
VCC_MAX
4. θ
5. For θ
IN
IN
IN
CC
EXT_THR
EXT_THF
UVLOTHR
UVLOTHF
ENSS_TH
EN_THR
EN_THF
EXT
ISEN1, 2,3, to GND . . . . . . . . . . . -5V (<100ns, 10µJ)/-0.3V (DC) to +30V
LGATE1, LGATE2, LGATE3, to GND . . . . . . . . . . . . -0.3V to VCC_5V+0.3V
Human Body Model (Tested per JESD22-A114F) . . . . . . . . . . . . . . 3000V
Machine Model (Tested per JESD22-115-C) . . . . . . . . . . . . . . . . . . . 200V
Charge Device Model (Tested per JESD22-C110D) . . . . . . . . . . . . 2000V
SYMBOL
= +25°C, unless otherwise specified. Boldface limits apply over the operating temperature range, -40°C to +85°C.
SUPPLY
SUPPLY CURRENT
Brief TB379.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
Input Voltage Range
Shutdown Current (Note 7)
Operating Current (Note 8)
Operation Voltage
Internal LDO Output Voltage
Internal LDO Output Voltage
Maximum Supply Current of Internal LDO
Switch Over Threshold Voltage, Rising
Switch Over Threshold Voltage, Falling
Internal Switch On Resistance
Undervoltage Lockout, Rising
Undervoltage Lockout, Falling
EN/SS1 THRESHOLD
EN2, EN3 Logic Threshold, Rising
EN2, EN3 Logic Threshold, Falling
(Note 6)
(Note 6)
PARAMETER
9
Recommended operating conditions unless otherwise noted. Refer to Block Diagram on page 5 and Typical
IN
= 5.0V to 26V, or VCC_5V = 5V ±10%, C_VCC_5V = 4.7µF, T
ISL9444
EN/SS1 = EN2 = EN3 = 0
PGOODx are floating
PGOOD1, PGOOD2, PGOOD3 are floating
V
V
V
V
EXTBIAS Voltage
EXTBIAS Voltage
V
VCC_5V Voltage
VCC_5V Voltage
IN
IN
IN
VCC_5V
IN
= 12V, I
= 4.5V, I
> 5.6V, I
= 12V
= 0V, V
Thermal Information
Thermal Resistance (Typical)
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . .-55°C to +150°C
Maximum Operating Temperature . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Maximum Storage Temperature. . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below
Recommended Operating Conditions
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V to 26V
L
L
L
40 Ld QFN Package (Notes 4, 5) . . . . . . . .
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
TEST CONDITIONS
= 0mA
= 30mA
= 75mA
IN
= 12V
A
= -40°C to +85°C, Typical values are at
(Note 9)
4.05
4.35
3.05
1.10
1.40
1.10
MIN
4.5
5.1
4.5
4.5
3.4
θ
JA
12.0
1.30
1.25
(°C/W)
4.35
3.95
3.60
150
TYP
5.4
5.4
4.7
4.5
0.5
1.7
32
5
30
(Note 9) UNITS
MAX
26.0
4.65
4.45
4.15
2.00
1.40
250
5.7
4.9
1.0
1.5
40
θ
6
JC
July 19, 2011
(°C/W)
2.5
FN7665.1
mA
mA
µA
Ω
V
V
V
V
V
V
V
V
V
V
V