MB3775 Datasheet, PDF (4/25 Pages) Fujitsu Component Limited. – SWITCHING REGULATOR CONTROLLER

MB3775
s ELECTRICAL CHARACTERISTICS
Parameter
Reference Section
Output Voltage
Output Temp. Stability
Input Stability
Load Stability
Short Circuit Output Current
condition
IOR =-1 mA
Ta = -30 °C to +85 °C
VCC = 3.6 V to 18 V
IOR = -0.1 mA to -1 mA
VREF = 0 V
Symbol
(Ta=25°C, VCC=6V)
Value
Unit
Min Typ Max
VREF
1.26 1.28 1.30
V
VRTC
-2 ±0.2
2
%
Line
–
2
10
mV
Load
–
1
7.5
mV
IOS
–
–30 –10
mA
Under Voltage Lockout Protection Section
Threshold Voltage
IOR = -0.1 mA
IOR = -0.1 mA
Hysteresis Width
IOR = -0.1 mA
Reset Voltage (VCC)
VtH
–
2.72
–
V
VtL
–
2.60
–
V
VHYS
80
120
–
mV
VR
1.5
1.9
–
V
Protection Circuit Section
Input Threshold Voltage
Input Stand by Voltage
Input Latch Voltage
Input Source Current
Comparator Threshold Voltage
No pull up
No pull up
Pin 5, Pin 12
VtPC
0.60 0.65 0.7
V
VSTB
–
50
100
mV
VI
–
50
100
mV
Ibpc
-1.4 -1.0 -0.6
µA
VtC
–
1.1
–
V
Triangular Waveform Oscillator Section
Ocillator Frequency
CT = 330 pF, RT = 15 kΩ
fOSC
Frequency Deviation
CT = 330 pF, RT = 15 kΩ
fdev
Frequency Stability (VCC)
VCC = 3.6 V to 18 V
fdV
Frequency Stability (Ta)
Ta = -30 °C to +85 °C
fdT
–
200
–
kHz
–
10
–
%
–
1
–
%
-4
–
4
%
Dead-Time Control Section
Input Threshold Voltage
(fOSC = 10 kHz)
Input Bias Current
Latch Mode Source Current
Latch Input Voltage
Duty Cycle = 0 %
Duty Cycle = 100 %
Vdt = 0.7 V
Idt=-40 µA
Vt0
Vt100
Ibdt
Idt
Vdt
–
1.0
VREF
-0.15
V
0.2 0.4
–
V
–
-0.2
–1
µA
–
-150 -80
µA
VREF
-0.1
–
–
V
4