ISL6307 Datasheet, PDF (9/34 Pages) Intersil Corporation – 6-Phase PWM Controller with 8 Bit VID Code Capable of Precision RDS(ON) or DCR Differential Current

ISL6307
Electrical Specifications Operating Conditions: VCC = 5V or ICC < 25mA. Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
PIN-ADJUSTABLE OFFSET
Voltage at OFS Pin for ISL6307CRZ
Offset resistor connected to ground
392 400 408 mV
Voltage below VCC, offset resistor connected to VCC
1.568 1.600 1.632 V
Voltage at OFS Pin for ISL6307IRZ
Offset resistor connected to ground
388 400 412 mV
Voltage below VCC, offset resistor connected to VCC
1.552 1.600 1.648 V
OSCILLATORS
Accuracy of Switching Frequency Setting R_T = 100kΩ
Adjustment Range of Switching Frequency (Note 4)
225 250 275 kHz
0.08 -
1.0 MHz
Soft-start Ramp Rate (Note 5, 6)
R_SS = 100kΩ
Adjustment Range of Soft-start Ramp Rate (Note 4)
- 1.563 - mV/µs
0.625 - 6.25 mV/µs
PWM GENERATOR
Sawtooth Amplitude
-
1.5
-
V
Max Duty Cycle
- 66.7 -
%
ERROR AMPLIFIER
Open-Loop Gain
Open-Loop Bandwidth
Slew Rate
Maximum Output Voltage
R_L = 10kΩ to ground (Note 4)
C_L = 100pF, R_L = 10kΩ to ground (Note 4)
C_L = 100pF
-
96
-
dB
-
20
-
MHz
-
9
-
V/µs
3.8 4.3 4.9
V
Output High Voltage @ 2mA
3.6
-
-
V
Output Low Voltage @ 2mA
-
-
1.2
V
REMOTE-SENSE AMPLIFIER
Bandwidth
(Note 4)
-
20
-
MHz
Output High Current
VSEN - RGND = 2.5V
-500 - 500 µA
Output High Current
VSEN - RGND = 0.6
-500 - 500 µA
PWM OUTPUT
PWM Output Voltage LOW Threshold
Iload = ±500µA
-
-
0.5
V
PWM Output Voltage HIGH Threshold
Iload = ±500µA
4.3
-
-
V
SENSE CURRENT OUTPUT (IDROOP and IOUT)
Sensed Current Tolerance
ISEN1 = ISEN2 = ISEN3 = ISEN4 = ISEN5 = ISEN6 = 80µA
76 80 84
µA
Overcurrent Trip Level
90 100 110 µA
Maximum Voltage at IDROOP and IOUT
pins
-
2
-
V
THERMAL MONITORING
TM Input Voltage for VR_FAN Trip
1.6 1.65 1.69 V
TM Input Voltage for VR_FAN Reset
1.89 1.93 1.98 V
TM Input Voltage for VR_HOT Trip
1.35 1.4 1.44 V
TM Input Voltage for VR_HOT Reset
1.6 1.65 1.69 V
Leakage current of VR_HOT
With external pull-up resistor connected to 5V
-
-
30
µA
VR_HOT Low Voltage
Leakage Current of VR_FAN
With 1.250kΩ resistor pull up to 5V, I_{VR_HOT} = 4mA
With external pull-up resistor connected to 5V
-
-
0.3
V
-
-
30
µA
VR_FAN Low Voltage
With 1.250kΩ resistor pull up to 5V, I_{VR_FAN} = 4mA
VR READY AND PROTECTION MONITORS
-
-
0.3
V
Leakage current of VR_RDY
With external pull-up resistor connected to 5V
-
-
30
µA
VR_RDY Low Voltage
Under Voltage Trip of VR-RDY
I_{VR_RDY} = 4mA
VSEN Falling
-
-
0.3
V
48 50 52 %VID
9
FN9224.0
March 9, 2006