MB3789 Просмотр технического описания (PDF) - Fujitsu
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MB3789 Datasheet PDF : 28 Pages
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MB3789
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Condition
Reference
voltage block
Under
voltage
lockout
protection
circuit
Soft start
block
Short circuit
detection
block
Triangular
waveform
oscillator
block
Output voltage
Output voltage
temperature
variation
Input stability
Load stability
Short output current
Threshold voltage
Hysteresis width
Reset voltage (VCC)
Charge current
Threshold voltage
Threshold voltage
Input standby
voltage
Input latch voltage
Input source current
Oscillator frequency
Frequency voltage
variation
Frequency
temperature
variation
Synchronous pin
input current
Synchronous pin
threshold voltage
VREF
∆VREF/VREF
Line
Load
IOS
VTH
VTL
VHYS
VR
ICHG
VT0
VT100
VTH
VSTB
VI
II
fOSC
∆f/fdv
∆f/fdT
ISYNC
VTHSY
IOR = 0 µA
Ta = –30°C to +85°C*
VCC = 3.0 V to 18 V
IOR = 0 µA to –50 µA
VREF = 0 V
—
—
—
—
VSCP 0.9 V
Duty cycle = 0%
Duty cycle = 100%
—
—
—
VSCP = 1.5 V
CT = 1000 pF,
RT = 39 kΩ
VCC = 3 V to 18 V
Ta = –30°C to +85°C*
VTHSY = 5 V
—
* : Standard design value
(VCC1 = 5 V, VCC2 = 6 V, Ta = +25°C)
Min.
Value
Typ.
Unit
Max.
2.400 2.500 2.600 V
—
0.2
2
%
—
—
–700
—
1.62
80
1.0
–2.8
0.2
0.8
1.70
1.15
—
–8.4
17
1
2
–450
2.15
1.90
250
1.4
–2.0
0.3
0.9
1.80
1.25
50
–6.0
20
10
mV
10
mV
–300 µA
2.62
V
—
V
—
mV
—
V
–1.2 µA
0.4
V
1.0
V
1.90
V
1.35 mV
100 mV
–3.6 µA
23 kHz
—
1
10
%
—
3
—
%
0.9
1.3
2.2 mA
0.65
0.75
0.85
V
(Continued)
8
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