ISL62391_11 Datasheet, PDF (3/20 Pages) Intersil Corporation – High-Efficiency, Triple-Output System Power Supply Controller

ISL62391, ISL62392, ISL62391C, ISL62392C
Electrical Specifications VIN = 12V, EN = VCC, T_A = -40°C to +100°C, unless otherwise noted. Typical values are at T_A = +25°C.
Boldface limits apply over the operating temperature range. (Continued)
PARAMETER
CONDITIONS
MIN
MAX
(Note 4) TYP (Note 4) UNITS
VCC POR Threshold
Rising Edge
4.33 4.50 4.55
V
Rising Edge (ISL62391HRTZ, ISL62392HRTZ,
4.35 4.50 4.55
V
T_A = -10°C to +100°C)
Falling Edge
4.08 4.20 4.30
V
Reference Voltage
Falling Edge (ISL62391HRTZ, ISL62392HRTZ,
4.10 4.20 4.30
V
T_A = -10°C to +100°C)
0.6
V
Regulation Accuracy
VOUT regulated to 0.6V
-1
1
%
FB Input Bias Current
FB = 0.6V
-12
30
nA
Frequency Range
FB = 0.6V (ISL62391HRTZ, ISL62392HRTZ,
-10
T_A = -10°C to +100°C)
200
30
nA
600
kHz
Frequency Set Accuracy
VOUT Voltage Adjust Range
F_SW = 300kHz (Note 3)
VIN ≥ 6V for VOUT = 5.5V
-12
12
%
0.6
5.5
V
VOUT Soft-discharge Resistance
14
50
Ω
PGOOD Pull-down Impedance
32
50
Ω
PGOOD Leakage Current
PGOOD = VCC
0
1
µA
Maximum PGOOD Sink Current
5
mA
PGOOD Soft-start Delay
(From first EN = 1 to PGOOD = 1)
EN1 = EN2 = 1
2.20 2.75 3.70
ms
EN1 = 1, EN2 = Floating or EN1 = Floating, EN2 =1 4.50 5.60 7.60
ms
EN1 = 1, EN2 = Floating or EN1 = Floating, EN2 =1 4.50 5.60 7.50
ms
(ISL62391HRTZ, ISL62392HRTZ, T_A = -10°C to
+100°C)
UGATE Pull-up ON-resistance
200mA source current
1.0
1.5
Ω
UGATE Source Current
UGATE-PHASE = 2.5V
2.0
A
UGATE Pull-down ON-resistance
250mA source current
1.0
1.5
Ω
UGATE Sink Current
UGATE-PHASE = 2.5V
2.0
A
LGATE Pull-up ON-resistance
250mA source current
1.0
1.5
Ω
LGATE Source Current
LGATE-PGND = 2.5V
2.0
A
LGATE Pull-down ON-resistance
250mA source current
0.5
0.9
Ω
LGATE Sink Current
LGATE-PGND = 2.5V
4.0
A
UGATE to LGATE Deadtime
UG falling to LG rising, no load
21
ns
LGATE to UGATE Deadtime
LG falling to UG rising, no load
21
ns
Bootstrap Diode Forward Voltage
2mA forward diode current
0.58
V
Bootstrap Diode Reverse Leakage Current
FCCM Input Voltage
V_R = 25V
Low Level (DCM enabled)
0.2
1
µA
0.8
V
Float Level (audio filter enabled)
1.9
2.1
V
High Level (forced CCM)
2.4
V
FCCM Input Leakage Current
FCCM = GND or VCC
-2
2
µA
Audio Filter Switching Frequency
FCCM floating
28
kHz
EN Input Voltage
Low Level (Clear fault level/SMPS off)
0.8
V
Float Level (Delayed start)
1.9
2.1
V
High Level (SMPS on)
2.4
V
3
FN6666.5
April 7, 2011