ISL9440BIRZ Intersil, ISL9440BIRZ Datasheet - Page 13
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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
Typical Performance Curves
(Oscilloscope Plots are Taken Using the ISL9440BEVAL1Z Evaluation Board, V
FIGURE 20. PWM1 OUTPUT RIPPLE UNDER MAX LOAD
FIGURE 22. PWM2 OUTPUT RIPPLE UNDER MAX LOAD
FIGURE 18. PGOOD RISING TO RST RISING
(V
BANDWIDTH)
(V
BANDWIDTH)
IN
IN
= 23V, I
= 23V, I
V
OUT1
V
O1
O1
OUT2
(AC), 50mV/DIV
= I
= I
(AC), 50mV/DIV
13
O2
O2
= 15A, I
= 15A, I
O3
O3
V
OUT1
(Continued)
= 12A, FULL
= 12A, FULL
PGOOD, 5.0V/DIV
RST, 5.0V/DIV
, 2.0V/DIV
2.0
2.0
2.0µs/DIV
µs
µs
/DIV
ISL9440B, ISL9440C
/DIV
IN
FIGURE 19. V
FIGURE 21. PWM1 LOAD TRANSIENT RESPONSE
FIGURE 23. PWM2 LOAD TRANSIENT RESPONSE
= 19V Unless Otherwise Noted).
0.5ms/DIV
(LOAD STEP FROM 3.75A TO 11.25A)
(LOAD STEP FROM 3.75A TO 11.25A)
IN
V
V
FALLING TO PGOOD FALLING DELAY TIME
OUT1
OUT2
I
I
STEP
STEP
(AC), 100mV/DIV
(AC), 100mV/DIV
V
, 5.0A/DIV
, 5.0A/DIV
PGOOD, 5.0V/DIV
RST, 5.0V/DIV
IN
V
, 2.0V/DIV
OUT1
, 2.0V/DIV
50
50
µs
µs
/DIV
June 24, 2010
/DIV
FN6799.3