MB39A119 Datasheet, PDF (11/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
(Continued)
(VCC = 19 V, VB = 0 mA, VREF = 0 mA, Ta = +25 °C)
Parameter
Symbol Pin No.
Conditions
Value
Unit
Min Typ Max
Overcurrent
detection
block
Threshold voltage
VTLH
11 −INC2 = 12.6 V
[Over
Current Det.]
12.75 12.8 12.85 V
VTLH
4
Threshold voltage
VTHL
4
⎯
2.056 2.12 2.184 V
⎯
1.959 2.02 2.081 V
Hysteresis width
VH
4
⎯
⎯ 0.1 ⎯ V
AC adapter
voltage
detection
block
[AC Comp.]
ACOK terminal
output leak current
ILEAK
ACOK terminal
output ON resistance
RON
XACOK terminal
output leak current
ILEAK
5 ACOK = 25 V
5 ACOK = 1 mA
22 XACOK = 25 V
⎯
0
1 µA
⎯ 200 400 Ω
⎯
0
1 µA
XACOK terminal
output ON resistance
RON
22 XACOK = 1 mA
⎯ 200 400 Ω
VTLH
Constant
Threshold voltage
VTHL
voltage
control state
Hysteresis width
VH
detection
block
CVM terminal
output leak current
ILEAK
[CV Comp.]
CVM terminal
output ON resistance
RON
14
⎯
14
⎯
14
⎯
6 CVM = 25 V
6 CVM = 1 mA
⎯ 2.7* ⎯ V
⎯ 2.6* ⎯ V
⎯ 0.1* ⎯ V
⎯
0
1 µA
⎯ 200 400 Ω
CS threshold
VTLH
17
Synchronous ^voltage
VTHL
17
rectification _{Hysteresis width}
VH
17
control block
[Synchronous ^{Light load detection}
VTLH
9
Cnt.]
threshold voltage
VTHL
9
⎯
2.55 2.6 2.65 V
⎯
2.50 2.55 2.60 V
⎯
⎯ 0.05 ⎯ V
⎯
0.35 0.4 0.45 V
⎯
0.25 0.3 0.35 V
Hysteresis width
VH
9
⎯
⎯ 0.1 ⎯ V
Bias voltage
block
[VB]
Output voltage
Load stability
VB
Load
25
⎯
4.9 5.0 5.1 V
25 VB = 0 mA to − 10 mA ⎯ 10 50 mV
Control block
[CTL]
CTL
input voltage
Input current
VON
VOFF
ICTLH
ICTLL
21 IC operating state
21 IC standby state
21 CTL = 5 V
21 CTL = 0 V
2
⎯ 25 V
0
⎯ 0.8 V
⎯ 25 40 µA
⎯
0
1 µA
General
Standby current
ICCS
Power supply current ICC
1 CTL = 0 V
1 CTL = 5 V
⎯
0
10 µA
⎯ 1.9 2.9 mA
* : Standard design value
11