MB3887_06 Datasheet, PDF (10/34 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery

MB3887
(Continued)
(Ta = +25 °C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Parameter
Sym- Pin
bol No.
Conditions
Value
Unit
Min
Typ
Max
Output source
current
ISOURCE
20
OUT = 13 V, Duty ≤ 5 %
(t = 1 / fOSC × Duty)
⎯
−400*
⎯ mA
8.
Output block
[OUT]
Output sink
current
Output ON
resistor
Rise time
ISINK
20
OUT = 19 V, Duty ≤ 5 %
(t = 1 / fOSC × Duty)
⎯
ROH 20 OUT = −45 mA
⎯
ROL 20 OUT = 45 mA
⎯
tr1
20
OUT = 3300 pF
(Si4435 × 1)
⎯
400*
6.5
5.0
50*
⎯ mA
9.8
Ω
7.5
Ω
⎯
ns
Fall time
tf1
20
OUT = 3300 pF
(Si4435 × 1)
⎯
50*
⎯
ns
9.
Power supply
control block
[CTL]
CTL input voltage
Input current
VON
VOFF
ICTLH
ICTLL
14 IC Active mode
14 IC Standby mode
14 CTL = 5 V
14 CTL = 0 V
2
⎯
25
V
0
⎯
0.8
V
⎯
100
150 µA
⎯
0
1
µA
10.
Bias voltage
block
[VH]
Output voltage
VCC = VCC (O)
VH 19 = 8 V to 25 V,
VH = 0 to 30 mA
VCC − 6.5 VCC − 6.0 VCC − 5.5 V
11.
General
Standby current
ICCS
Power supply cur-
rent
ICC
18
VCC = VCC (O) ,
CTL = 0 V
18
VCC = VCC (O) ,
CTL = 5 V
⎯
0
10
µA
⎯
8
12 mA
* : Standard design value
10