ISL9440BIRZ-T Intersil, ISL9440BIRZ-T Datasheet - Page 7

• Manufacturer Part Number: ISL9440BIRZ-T
• Description: IC CTRLR PWM OUT-OF-PHASE 32-QFN
• Manufacturer: Intersil

Specifications of ISL9440BIRZ-T

• Pwm Type: Current Mode
• Number Of Outputs: 4
• Frequency - Max: 340kHz
• Duty Cycle: 93%
• Voltage - Supply: 4.5 V ~ 24 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Frequency-max: 340kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
Maximum Duty Cycle (ISL9440C)
Minimum Duty Cycle (ISL9440C)
FB Bias Current (Note 9)
Peak-to-Peak Sawtooth Amplitude (Note 9)
Ramp Offset
PWM GATE DRIVER CHANNEL 1, 2 (UGATE1, 2; LGATE 1, 2) (Note 9)
Source Current
Sink Current
Upper Drive Pull-Up
Upper Drive Pull-Down
Lower Drive Pull-Up
Lower Drive Pull-Down
Rise Time
Fall Time
PWM GATE DRIVER CHANNEL 3 (UGATE3; LGATE 3) (Note 9)
Sink/Source Current
Upper Drive Pull-Up
Upper Drive Pull-Down
Lower Drive Pull-Up
Lower Drive Pull-Down
Rise Time
Fall Time
LOW DROP OUT CONTROLLER
Drive Sink Current
FB Threshold Voltage
Amplifier Trans-conductance
LDOFB Input Leakage Current (Note 9)
ENABLE1, ENABLE2, ENABLE3 THRESHOLD and SOFT-START CURRENT
EN/SSx Enable Threshold
EN/SSx Soft-Start Charge Current
POWER-GOOD MONITORS
PGOOD Upper Threshold, PWM 1, 2 and 3
PGOOD Lower Threshold, PWM 1, 2 and 3
PGOOD for Linear Controller
PGOOD Low Level Voltage
PGOOD Leakage Current
PARAMETER
7
Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3, “Typical
Application - ISL9440B” on page 4 and “Typical Application - ISL9440C” on page 5. V
VCC_5V = 5V ±10%, C_VCC_5V = 4.7µF, T
ISL9440B, ISL9440C
V
V
VCC_5V = 5.0V
VCC_5V = 5.0V
VCC_5V = 5.0V
VCC_5V = 5.0V
C
C
VCC_5V = 5.0V
VCC_5V = 5.0V
VCC_5V = 5.0V
VCC_5V = 5.0V
C
C
LDOFB = 0.76V
IG4 = 21mA
LDOFB = 0.8V
VEN/SSx = 1.3V
I_SINK = 4mA
PGOOD = 5V
IN
IN
OUT
OUT
OUT
OUT
= 12V
= 5.5V
= 1000pF
= 1000pF
= 1000pF
= 1000pF
TEST CONDITIONS
A
= -40°C to +85°C, Typical values are at T
(Note 11)
105.5
MIN
1.1
1.1
50
87
70
0.667
0.800
0.025
2000
TYP
1.55
800
400
111
1.6
1.6
0.9
8.0
3.2
1.8
1.3
IN
86
18
18
18
18
91
75
6
1
4
4
8
2
A
= 5.6V to 24V, or
= +25°C. (Continued)
(Note 11) UNITS
115.5
MAX
1.55
6.0
3.5
2.0
0.4
50
12
12
50
96
80
8
3
8
2
1
June 24, 2010
FN6799.3
A/V
mA
mA
mA
mA
µA
µA
nA
nA
ns
ns
ns
ns
%
%
%
%
%
V
V
V
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
V
V
V