mb3843pfv Fujitsu Microelectronics, Inc., mb3843pfv Datasheet - Page 8

• Manufacturer Part Number: mb3843pfv
• Description: Lithium Ion Battery Charger Dc/dc Converter Ic High Precision With Constant-current Function
• Manufacturer: Fujitsu Microelectronics, Inc.

8
MB3813A/MB3833A/MB3843
Reference
voltage block
(Ref)
Under voltage
lockout circuit
block (UVLO)
Input voltage
detector block
(VLDET)
Soft-start block
(UVLO)
Triangular
wave
oscillator block
(OSC)
Error amplifier
(Error Amp.1)
ELECTRICAL CHARACTERISTICS
Parameter
Output
voltage
Input
stability
Load
stability
Threshold
voltage
Hysteresis
voltage
Threshold
voltage
Hysteresis
voltage
Input
current
Charge
current
Oscillator
frequency
Threshold
voltage
Symbol
Load
V
Line
f
V
V
V
V
V
I
OSC
I
I
CS
REF
IH
IL
TH
TH
T1
H
H
No.
Pin
11
15
9
9
9
9
9
1
1
1
1
3
3
V
V
V
VREF
VREF
Vin1
Vin1
Vin1
CT
RT
FB
FB
Ta
CC
CC
CC
500 A
330 pF,
15 k
1.5 V, SEL
1.5 V,
Condition
12 V to 18 V
8 V to 18 V
7 V to 18 V
30 C to 85 C
“L”
16 V
0 V
0 A to
“L”
“H”
“H”
0 V
(V
CC
12.474 12.60 12.726
2.475 2.500 2.525
8.316
4.158
12.41 12.60 12.79
10.2
8.27
4.13
Min
180
1.8
6.7
5.8
Vin1
1.0
1.4
Value
11.0
0.57
8.40
4.20
8.40
4.20
Typ
150
270
310
200
1.0
1.0
1.0
3.0
2.0
0.2
7.3
6.3
1.0
0.7
1.0
16 V, V
8.484
4.242
Max
10.0
10.0
10.0
10.0
0.35
11.8
8.53
4.26
300
540
620
220
2.2
7.9
6.8
2.0
1.4
1.2
1.0
SEL
0.6
0 V, Ta
Unit Remarks
kHz
mV
mV
mV
mV
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
(Continued)
MB3813A
MB3833A
MB3843
MB3813A
MB3833A
MB3843
MB3813A
MB3833A
MB3843
MB3813A
MB3833A
MB3843
MB3813A
MB3833A
MB3843
MB3813A
MB3833A
MB3843
25 C)