US3022
Error Comparator Section
Input bias current
Input Offset Voltage
Delay to Output
Current Limit Section
C.S Threshold Set Current
C.S Comp Offset Voltage
Hiccup Duty Cycle
Output Drivers Section
Rise Time
Fall Time
Dead band Time Between
High side and Synch Drive
(Vcore Switcher Only)
Oscillator Section (internal)
Osc Frequency
1.8V Regulator (Vsen 4)
Vsense Voltage
Vo4
Vsense Voltage
Input bias current
Output Drive Current
1.5V Regulator (Vsen 3)
Vsense Voltage
Vsense Voltage
Input bias current
Output Drive Current
2.5V Regulator (Vsen 5)
Vsense Voltage
Vsense Voltage
Input bias current
Output Drive Current
Power Good Section
Vsen1 UV lower trip point
Vsen1 UV upper trip point
Vsen1 UV Hysterises
Vsen1 HV upper trip point
Vsen1 HV lower trip point
Vsen1 HV Hysterises
Vsen2 trip point
Vsen4 trip point
Vsen3 trip point
Vsen5 trip point
Power Good Output LO
Power Good Output HI
Fault (Overvoltage) Section
Core O.V. upper trip point
Core O.V. lower trip point
FAULT Output HI
Soft Start Section
Soft Start Current
-2
Vdiff=10mV
200
-5
Css=0.1 uF
CL=3000pF
CL=3000pF
10
70
70
+5
2
+2
100
uA
mV
nS
uA
mV
%
nS
nS
CL=3000pF
Rt=Open
Ta=25, Drive4 = Vsen4
200
217
1.800
1.800
2
50
nS
Khz
V
V
uA
mA
Vaux-Vdrive>0.6V
Vo3
Ta=25, Drive3 = Vsen3
1.500
1.500
2
50
2.500
2.500
2
50
0.90Vs
0.92Vs
.02Vs
1.10Vs
1.08Vs
.02Vs
1.100
2.560
1.320
1.140
1.875
0.4
4.8
1.17Vs
1.15Vs
10
20
Vaux-Vdrive>0.6V
Vo5
Ta=25, Drive5 = Vsen5
V
V
uA
mA
V
V
uA
mA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
uA
Vaux-Vdrive>0.6V
Vsen1 ramping down
Vsen1 ramping up
Vsen1 ramping up
Vsen1 ramping down
Select<0.8V
Select>2V
RL=3mA
RL=5K pull up to 5V
Vsen1 ramping up
Vsen1 ramping down
Io=3mA
OCset=0V , Phase=5V
Note 1: Vs refers to the set point voltage given in Table 1.
Rev. 1.0
11/2/99
4-3
UNISEM [ UNISEM ]
