MB3888 Datasheet, PDF (10/30 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion Battery

MB3888
(Continued)
Parameter
Sym- Pin
bol No.
(Ta = +25 °C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Conditions
Rating
Unit
Min Typ Max
Frequency
bandwidth
BW 12 AV = 0 dB
6.
Current
detection
amplifier block
[Current Amp]
Output voltage
Output source
current
VOUTCH 12

VOUTCL ¹²

ISOURCE 12 OUTC = 2 V
Output sink current ISINK 12 OUTC = 2 V
7.
PWM
comparator
block
[PWM Comp.]
Threshold voltage
Input bias current
VTL
5, 6,
15
Duty cycle = 0 %
VTH
5, 6,
15
Duty cycle = 100 %
IDTC 5 DTC = 0.4 V
Output source
current
ISOURCE
18
OUT = 13 V, Duty ≤ 5 %
(t = 1 / fOSC × Duty)
8.
Output block
[OUT]
Output sink current ISINK
ROH
Output ON resistor
ROL
Rise time
tr1
18
OUT = 19 V, Duty ≤ 5 %
(t = 1 / fOSC × Duty)
18 OUT = −45 mA
18 OUT = 45 mA
18
OUT = 3300 pF
(equivalent to Si4435 × 1)
Fall time
tf1
18
OUT = 3300 pF
(equivalent to Si4435 × 1)
9.
Control block
[CTL]
CTL input voltage
Input current
VON
VOFF
ICTLH
ICTLL
3 IC Active mode
3 IC Standby mode
3 CTL = 5 V
3 CTL = 0 V
10.
Bias voltage
block
[VH]
Output voltage
VCC = VCC (O)
VH 17 = 8 V to 25 V,
VH = 0 to 30 mA
11.
General
Standby current
Power supply
current
ICCS
16
VCC = VCC (O) ,
CTL = 0 V
ICC
16
VCC = VCC (O) ,
CTL = 5 V

4.7


150
1.4

−2.0






2
0


VCC −
6.5


2*
4.9
20
−2
300
1.5
2.5
−0.6
−400*
400*
6.5
5.0
50*
50*


100
0
VCC −
6.0
0
4
 MHz

V
200 mV
−1 mA
 µA

V
2.6 V
 µA
 mA
 mA
9.8 Ω
7.5 Ω
 ns
 ns
25 V
0.8 V
150 µA
1
µA
VCC −
5.5
V
10 µA
6 mA
* : Standard design value
10