MB39A114 Datasheet, PDF (10/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
(VCC = 19 V, VREF = 0 mA, Ta = +25 °C)
Parameter
Symbol Pin No.
Conditions
Value
Unit
Min Typ Max
VOUTC1
2, 10
+INC1 = +INC2 = 3 V to VCC,
∆VIN = −100 mV
1.9
2.0
2.1
V
Current
detection
voltage
VOUTC2
2, 10
+INC1 = +INC2 = 3 V to VCC,
∆VIN = −20 mV
0.34
0.40
0.46
V
VOUTC3
2, 10
+INC1 = +INC2 = 0 V,
∆VIN = −100 mV
1.8 2.0 2.2 V
VOUTC4
2, 10
+INC1 = +INC2 = 0 V,
∆VIN = −20 mV
0.2 0.4 0.6 V
Current
detection
In-phase input
voltage range
VCM
1, 12,
13, 24

0

VCC
V
amplifier block
[Current Amp1, Voltage gain
Current Amp2]
AV
2, 10
+INC1 = +INC2 = 3 V to VCC,
∆VIN = −100 mV
19
20
21 V/V
Frequency
bandwidth
BW 2, 10 AV = 0 dB

2*
 MHz
VOUTCH 2, 10

Output voltage
VOUTCL 2, 10

4.7 4.9  V

20 200 mV
Output source
current
ISOURCE
2, 10 OUTC1 = OUTC2 = 2 V

−2
−1 mA
Output sink
current
ISINK 2, 10 OUTC1 = OUTC2 = 2 V
150 300  µA
PWM
comparator
block
[PWM Comp.]
Threshold
voltage
VTL 7, 15 Duty cycle = 0%
VTH 7, 15 Duty cycle = 100%
1.4 1.5  V
 2.5 2.6 V
Output source
current
ISOURCE
20
OUT = 13 V, Duty ≤ 5%
(t = 1/fosc × Duty)
 − 400*  mA
Output block
[OUT]
Output sink
current
Output ON
resistor
ISINK
20
OUT = 19 V, Duty ≤ 5%
(t = 1/fosc × Duty)
ROH
20 OUT = − 45 mA
ROL
20 OUT = 45 mA
 400*  mA
 6.5 9.8 Ω
 5.0 7.5 Ω
Rise time
tr1
20 OUT = 3300 pF
 50*  ns
Fall time
tf1
20 OUT = 3300 pF
 50*  ns
AC adaptor
detection block
[UV Comp.]
Threshold
voltage
Hysteresis
width
VTLH
21 VCC = , −INC2 = 16.8 V 17.2 17.4 17.6 V
VTHL
21 VCC = , −INC2 = 16.8 V 16.8 17.0 17.2 V
VH
21

 0.4*  V
* : Standard design value
(Continued)
10