LTC4055EUF Linear Technology, LTC4055EUF Datasheet - Page 10

• Manufacturer Part Number: LTC4055EUF
• Description: IC USB PWR MNGR BATT CHRGR 16QFN
• Manufacturer: Linear Technology

Specifications of LTC4055EUF

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.35 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BLOCK DIAGRAM
LTC4055/LTC4055-1
10
100k
100k
100k
100k
11
13
15
16
9
8
5
CLPROG
PROG
HPWR
ACPR
WALL
V
NTC
NTC
1V
500mA/100mA
+
–
0.1V
2μ
–
+
–
+
+
–
+
–
+
–
NTC
1V
1V
NTC ENABLE
2HOT
2COLD
TEMP
DIE
–
TA
CURRENT CONTROL
105°C
+
4.35V
–
VR
+
NTCERR
10
GND
I
LIM
2μ
SOFT-START
SENSE
V
VOLTAGE DETECT
CURRENT LIMIT
CONTROL LOGIC
BUS
IN1 OUT BAT
6
SHDN
UVLO
4
7
IN1
IN1
I
LIM
ENABLE
SUSP
0.2Ω
CNTL
RECHRG
I
2μ
BAT UV
RESET
CHRG
HOLD
OUT
SOFT-START2
3
OUT
BATTERY CHARGER
25mV IDEAL
–
+
OSCILLATOR
COUNTER
DIODE
0.2Ω
I/O SEL
BAT UV
CLK
CC/CV REGULATOR
2
ENABLE
BAT
CHARGER
BAT
0.2Ω
+
+
+
–
–
–
IN2
1
0.25V
2.8V
BATTERY
UVLO
4.1V
RECHARGE
(4.0V
LTC4055-1)
IN2
STOP
TIMER
CHRG
4055 BD
12
14
4055fb