LTC4099 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC4099' PDF : 36 Pages View PDF
LTC4099
Block Diagram
TO AUTOMOTIVE,
FIREWIRE, ETC.
VIN
SW
LT3480
VC
FB
TO USB
OR WALL
ADPAPTER
OVSENS
20
OVGATE
1
VBUS
13
OVERVOLTAGE PROTECTION
s2
+–
ISWITCH/N ILDO/M
+
100mV –
19 CLPROG
SUSPEND
LDO
4.6V
4
VC
6V
NONOVERLAP
AND DRIVE
LOGIC
SQ
R
T NTC
–
+
1.18V
AVERAGE INPUT
CURRENT LIMIT
CONTROLLER
NTCBIAS
3
VOUT
OSC
–
2 NTC
+
–
+
TOO COLD
TOO WARM
–
+
OVERTEMPERATURE
AVERAGE OUTPUT
VOLTAGE LIMIT
CONTROLLER
0.3V
+–
3.6V
BATTERY CONDITIONER
+
3.85V –
I2C PORT
DVCC SCL
SDA GND
GND
15
16
17
9
21
5
WALL
VOUT
–
3.6V
BAT + 0.3V 4.3V
+
Bat-Track HV CONTROL
ACPR
18
SW
14
TO
SYSTEM
LOAD
VOUT
12
CONSTANT-CURRENT
CONSTANT-VOLTAGE
BATTERY CHARGER
IDEAL
DIODE
+
0V
–
15mV +–
IDGATE
10
OPTIONAL
EXTERNAL
IDEAL DIODE
PMOS
VC/x +
–
BATSENS
6
BAT
11
SINGLE- +
C/x
CELL
Li-Ion
VPROG
IBAT/1030
INTERRUPT LOGIC
IRQ
8
PROG
7
4099 BD
4099fd
12
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