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ISL1801 Datasheet, PDF (9/30 Pages) Intersil Corporation – sPMIC for Micro Converter Bias and Drivers
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ISL1801
Low Voltage 3.3V Bias Regulator VR2 Electrical Specifications TA = +25°C, VR1 = 10V, VR2 = 3.3V. Boldface
limits apply over the operating temperature range, -40°C to +85°C. (Notes 6, 7)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 7)
TYP
(Note 6)
MAX
(Note 7)
UNITS
OVERCURRENT PROTECTION
Overcurrent Protection Threshold
200
245
300
mA
OVERVOLTAGE PROTECTION
FB2 OVP Threshold
0.775
V
PGOOD2 (OPEN DRAIN OUTPUT)
Power-Good Lower Threshold
Fraction of VOUT2 set point; 3µs noise
83
90
95
%
filter
PGOOD2 Leakage Current
PGOOD2 Voltage Low
VPULLUP = 3.3V
IPGOOD2 = 4mA
1
µA
0.5
V
Driver Electrical Specifications TA = +25°C, VR1 = 10V, VR2 = 3.3V. Boldface limits apply over the operating temperature range,
-40°C to +85°C. (Notes 6, 7)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 7)
TYP
(Note 6)
MAX
(Note 7)
UNITS
PVCC3 SUPPLY
Shutdown Current
PVCC3 = 3V
0.85
1.1
mA
Operating Current
PVCC3 = 10V, Drive3 = Bdrive = 1, or 0
1.75
3.2
mA
Operating Current
PVCC3 = 10V, FS = 50kHz, 10nF load on
Drive3
8
11
mA
LOGIC INPUT PINS
Low Level Voltage Threshold
PWM3, RPWM3, BCMD, BRESET,
VDDRFE = 3.3V
0.7
V
High Level Voltage Threshold
PWM3, RPWM3, BCMD, BRESET,
2.4
V
VDDRFE = 3.3V
Hysteresis
187
mV
Input Pull-Down Current
500
nA
DRIVE3 AND BDRIVE GATE DRIVER
Low Level Output Voltage
High Level Output Voltage
Peak Pull-Down Current
Peak Pull-Up Current
Active Pull-Down Resistance Before POR
IDRIVE = 100mA
IDRIVE = -100mA
VDRIVE = 0V
VDRIVE = 10V
VCC1 = 10V
50
250
mV
9.25
9.8
V
5
A
2
A
270
600
Ω
OVERCURRENT PROTECTION OCSET3
OC Threshold Current
Current from OCSET3 Pin
110
120
130
µA
OC Comparator Input Offset
3
mV
DRIVE3 AND BDRIVE SWITCHING CHARACTERISTICS
tPHL Turn-Off Propagation Delay
tPLH Turn-On Propagation Delay
tRC
Output Rise Time (10% to 90%)
tFC
Output Fall Time (90% to 10%)
tPW Input Pulse Width that Changes the
Output
PWM Falling to DRIVE Falling
PWM Rising to DRIVE Rising
CL = 10nF
CL = 10nF
200
320
ns
150
300
ns
90
ns
50
ns
300
ns
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9
FN8259.1
July 24, 2014
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