LTC3550EDHC-1#TR Linear Technology, LTC3550EDHC-1#TR Datasheet - Page 11

• Manufacturer Part Number: LTC3550EDHC-1#TR
• Description: IC,Battery Management,CMOS,LLCC,16PIN,PLASTIC
• Manufacturer: Linear Technology
• Type: Battery Chargerr

Specifications of LTC3550EDHC-1#TR

• Battery Type: Li-Ion
• Output Current: 800mA
• Output Voltage: 4.2V
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Mounting: Surface Mount
• Pin Count: 16
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

PI FU CTIO S
DCIN (Pin 16): Wall Adapter Input Supply Pin. Provides
power to the battery charger. The maximum supply
current is 950mA. This should be bypassed with a 1µF
capacitor.
USBPWR
BLOCK DIAGRA
ENABLE
CHRG
PWR
U
13
12
4
5
10mA MAX
10mA MAX
1mA MAX
U
R
LOGIC
RECHRG
ENABLE
TERM
DCIN
16
4.15V
BAT
U
TERMINATION
RECHARGE
+
–
+
–
W
DCIN UVLO
+
–
+
–
100mV
4.1V
BAT
REGULATOR
CC/CV
DC_ENABLE
3
R
START
SOFT-
ITERM
I
/1000
ITERM
DC
BAT
CHARGER CONTROL
BAT
15
14
START
USB_ENABLE
SOFT-
USB
R
IDC
I
/1000
IDC
BAT
REGULATOR
CC/CV
2
R
I
/1000
IUSB
IUSB
BAT
USBIN UVLO
Exposed Pad (Pin 17): GND. The exposed backside of the
package is ground and must be soldered to the PCB ground
for electrical connection and maximum heat transfer.
+
–
+
–
REGULATION
THERMAL
3.95V
BAT
USBIN
+
–
RS LATCH
1
S
R
Q
Q
T
105°C
DIE
SWITCHING
BLANKING
CIRCUIT
LOGIC
AND
11
RUN
–
I
SHOOT-
COMP
ANTI-
THRU
SLOPE
COMP
I
RCMP
BURST
CLAMP
+
+
–
I
TH
LTC3550-1
OSC
EA
–
+
SHIFT
FREQ
5Ω
8, 9, 17
GND
0.6V
11
R1
R2
10
6
7
35501f
V
V
SW
OUT
CC