ISL6326BIRZ Intersil, ISL6326BIRZ Datasheet - Page 7

• Manufacturer Part Number: ISL6326BIRZ
• Description: IC CTRLR PWM 4PHASE BUCK 40-QFN
• Manufacturer: Intersil

Specifications of ISL6326BIRZ

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 275kHz
• Duty Cycle: 25%
• Voltage - Supply: 4.75 V ~ 5.25 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, 40-VFQFPN
• Frequency-max: 275kHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Electrical Specifications
DAC Sink Current
REF Source Current
REF Sink Current
PIN-ADJUSTABLE OFFSET
Voltage at OFS Pin
OSCILLATORS
Accuracy of Switching Frequency Setting
Adjustment Range of Switching Frequency (Note 4)
Soft-start Ramp Rate
Adjustment Range of Soft-Start Ramp Rate (Note 4)
PWM GENERATOR
Sawtooth Amplitude
ERROR AMPLIFIER
Open-Loop Gain
Open-Loop Bandwidth
Slew Rate
Maximum Output Voltage
Output High Voltage @ 2mA
Output Low Voltage @ 2mA
REMOTE-SENSE AMPLIFIER
Bandwidth
Output High Current
Output High Current
PWM OUTPUT
PWM Output Voltage LOW Threshold
PWM Output Voltage HIGH Threshold
CURRENT SENSE AND OVERCURRENT PROTECTION
Sensed Current Tolerance (IOUT)
Overcurrent Trip Level for Average Current
Peak Current Limit for Individual Channel
IOUT Trip Level for Overcurrent protection
THERMAL MONITORING AND FAN CONTROL
TM Input Voltage for VR_FAN Trip
TM Input Voltage for VR_FAN Reset
TM Input Voltage for VR_HOT Trip
TM Input Voltage for VR_HOT Reset
Leakage Current of VR_FAN
VR_FAN Low Voltage
PARAMETER
7
Operating Conditions: VCC = 5V, Unless Otherwise Specified (Continued)
Offset resistor connected to ground
Voltage below VCC, offset resistor connected to VCC
R
R
R
(Note 4)
(Note 4)
(Note 4)
VSEN - RGND = 2.5V
VSEN - RGND = 0.6
Iload = ±500μA
Iload = ±500μA
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 60μA
With externally pull-up resistor connected to VCC
With 1.25k resistor pull-up to VCC, I
T
S
L
= 10kΩ to ground (Note 4)
= 100kΩ
= 100kΩ (Notes 5, 6)
ISL6326B
TEST CONDITIONS
VR_FAN
= 4mA
0.625
1.55
0.08
-500
-500
1.85
1.55
1.85
1.30
1.55
MIN
380
225
100
3.8
3.6
4.3
45
45
57
72
-
-
-
-
-
-
-
-
-
-
-
1.563
TYP
1.60
1.25
1.65
1.95
1.40
1.65
400
250
120
4.3
2.0
50
50
96
80
25
20
60
85
-
-
-
-
-
-
-
-
-
-
-
MAX
1.65
6.25
2.15
1.75
2.05
1.50
1.75
300
420
275
500
500
140
1.0
4.9
1.8
0.5
0.4
55
55
63
98
30
-
-
-
-
-
-
-
-
April 21, 2006
UNITS
mV/µs
mV/µs
FN9286.0
MHz
MHz
MHz
V/µs
kHz
mV
µA
µA
µA
dB
µA
µA
µA
µA
µA
µA
V
V
V
V
V
V
V
V
V
V
V
V
V