LTC3550EDHC-1#PBF Linear Technology, LTC3550EDHC-1#PBF Datasheet - Page 11
LTC3550EDHC-1#PBF
Manufacturer Part Number
LTC3550EDHC-1#PBF
Description
IC CHARGER BATT DUAL 16-DFN
Manufacturer
Linear Technology
Datasheet
1.LTC3550EDHC-1PBF.pdf
(24 pages)
Specifications of LTC3550EDHC-1#PBF
Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4.3 V ~ 8 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-WFDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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