ISL6218 Datasheet, PDF (4/19 Pages) Intersil Corporation – Precision Single-Phase Buck PWM Controller for Intel Mobile Voltage Positioning IMVP-IV and IMVP-IV+

ISL6218
Electrical Specifications Operating Conditions: V_DD = 5V, T_A = -10°C to +85°C, Unless Otherwise Specified. (Continued)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
ISEN
Full Scale Input Current
-
32
-
Overcurrent Threshold
ROCSET = 110k (see Figure 10)
-
54
-
Soft-Start Current
SOFT = 0V
-
31
-
Droop Current
ISEN = 32µA
12.0
14 16.0
GATE DRIVER
UGATE Source Resistance
500mA Source Current
-
1
1.5
UGATE Source Current (Note 4)
UGATE Sink Resistance
V_UGATE-PHASE = 2.5V
500mA Sink Current
-
2
-
-
1
1.5
UGATE Sink Current (Note 4)
LGATE Source Resistance
V_UGATE-PHASE = 2.5V
500mA Source Current
-
2
-
-
1
1.5
LGATE Source Current (Note 4)
LGATE Sink Resistance
V_LGATE = 2.5V
500mA Sink Current
-
2
-
-
0.5 0.8
LGATE Sink Current (Note 4)
BOOTSTRAP DIODE
V_LGATE = 2.5V
-
4
-
Forward Voltage
VDDP = 5V, Forward Bias Current = 10mA
0.57 0.68 0.74
POWER GOOD MONITOR
PGOOD Sense Current
2.43
-
-
PGOOD Pull-Down MOSFET r_DS(ON)
Undervoltage Threshold
(VSEN/VREF)
VSEN Rising
56
63
82
-
85.0
-
Undervoltage Threshold
(VSEN/VREF)
VSEN Falling
-
84.0
-
PGOOD Low Output Voltage
LOGIC THRESHOLD
I_PGOOD = 4mA
-
0.26 0.4
EN, DSEN, DRSEN Low
-
-
1
EN, DSEN, DRSEN High
2
-
-
PROTECTION
Overvoltage Threshold (V_SEN/V_REF) V_SEN Rising
DELAY TIME
-
112.0 -
Delay Time from LGATE Falling to VDDP = 5V, BOOT to PHASE = 5V, UGATE - PHASE = 1V,
UGATE Rising
LGATE = 1V
10
18
30
Delay Time from UGATE Falling to VDDP = 5V, BOOT to PHASE = 5V, UGATE - PHASE = 1V,
LGATE Rising
LGATE = 1V
10
18
30
UNITS
µA
µA
µA
µA
Ω
A
Ω
A
Ω
A
Ω
A
V
mA
Ω
%
%
V
V
V
%
ns
ns
4
FN9101.6
August 6, 2007