ISL9440BIRZ Intersil, ISL9440BIRZ Datasheet - Page 3
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ISL9440BIRZ
Manufacturer Part Number
ISL9440BIRZ
Description
IC CTRLR PWM OUT-OF-PHASE 32-QFN
Manufacturer
Intersil
Datasheet
1.ISL9440BIRZ.pdf
(24 pages)
Specifications of ISL9440BIRZ
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL9440BIRZ
Manufacturer:
INTERSIL
Quantity:
20 000
Company:
Part Number:
ISL9440BIRZ-T
Manufacturer:
Intersil
Quantity:
6 000
Block Diagram
UGATE1
PHASE1
OCSET1
LGATE1
BOOT1
LDOFB
EN/SS1
ISEN1
FB1
G4
VCC_5V
+ 0.8V
1.3V REF
REF
CURRENT
SAMPLE
180kΩ
PGND
+
1.75V REFERENCE
g
1400kΩ
m
_
+
*V
ADAPTIVE DEAD-TIME
E
1.55µA
V/I SAMPLE TIMING
-
+
CHANNEL 1
18.5pF
V
ERROR AMP 1
+
-
E
CURRENT
VCC_5V
0.8V REFERENCE
SAMPLE
EN/SS1
16kΩ
+
-
+
-
+
PGOOD
PWM1
OVERCURRENT FAULT
RST
REQUIRED TO LATCH
OC1
SAME STATE FOR
2 CLOCK CYCLES
OCP
VCC_5V
PWM CHANNEL PHASE CONTROL
DUTY CYCLE RAMP GENERATOR
EARLY WARNING
BIAS SUPPLIES
FAULT LATCH
(see Note 10)
REFERENCE
SOFT-START
ENABLE
POR
VIN PGND
VIN
OV
SGND
VCC_5V
UV
EN/SS1
EN/SS2
EN/SS3
PGOOD
VIN
UV
PWM2
PWM3
OC3
OC2
ADAPTIVE DEAD-TIME
ADAPTIVE DEAD-TIME
VCC_5V
VCC_5V
V/I SAMPLE TIMING
V/I SAMPLE TIMING
CHANNEL 3
CHANNEL 2
PGND
PGND
VCC_5V
UGATE2
PHASE2
UGATE3
PHASE3
OCSET3
OCSET2
LGATE2
VCC_5V
LGATE3
EN/SS3
EN/SS2
BOOT2
BOOT3
ISEN3
ISEN2
FB3
FB2