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MB3878
6
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ELECTRICAL CHARACTERISTICS
(Ta = +25 °C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
* : Standard design value.
(Continued)
Parameter Symbol
Pin
No.
Conditions
Value
Unit
Min Typ Max
Reference
voltage block
(Ref)
Output voltage V
REF 6
Ta = +25 °C 4.995 5.000 5.045 V
Ta = −30 °C to +85 °C 4.945 5.000 5.055 V
Input stability Line 6 VCC = 7 V to 25 V 310mV
Load stability Load 6 VREF = 0 mA to −1 mA 110mV
Short-circuit
output current
Ios 6 VREF = 1 V −25 −15 −5mA
Under voltage
lockout protection
circuit block
(UVLO)
Threshold voltage
V
TLH 18
VCC = VCC (O) ,
VCC =
6.1 6.4 6.7 V
V
THL 18
VCC = VCC (O) ,
VCC =
5.1 5.4 5.7 V
Hysteresis width VH 18 VCC = VCC (O) 0.7 1.0 1.3 V
Threshold voltage
V
TLH 6VREF = 2.6 2.8 3.0 V
V
THL 6VREF = 2.4 2.6 2.8 V
Hysteresis width VH 6VH = VTLH − VTHL 0.05 0.20 0.35 V
Soft-start block
(SOFT)
Charge current I
CS 22 −1.3 −0.8 −0.5 µA
Triangular
waveform
oscillator circuit
block (OSC)
Oscillation
frequency
f
OSC 20 RT = 47 kΩ 260 290 320 kHz
Frequency
temperature
stability
∆f/fdt 20 Ta = −30 °C to +85 °C 1* %
Error amplifier
block
(Error Amp.1,
Error Amp.2)
Input offset
voltage
V
IO
3, 4,
8, 9
FB1 = FB2 = 2 V 15mV
Input bias current I
B
3, 4,
8, 9
−100 −30 nA
Common mode
input voltage
range
V
CM
3, 4,
8, 9
0
VCC −
1.8
V
Voltage gain A
V 5, 7 DC 100* dB
Frequency
bandwidth
B
W 5, 7 AV = 0 dB 2.0* MHz
Output voltage
V
FBH 5, 7 4.7 4.9 V
VFBL 5, 7 20 200 mV
Output source
current
I
SOURCE 5, 7 FB1 = FB2 = 2 V −2.0 −0.6 mA
Output sink
current
I
SINK 5, 7 FB1 = FB2 = 2 V 150 300 µA