LTC4011_15 Datasheet, PDF (2/26 Pages) Linear Technology – High Efficiency Standalone Nickel Battery Charger

LTC4011
Absolute Maximum Ratings
(Note 1)
V_CC (Input Supply) to GND......................... –0.3V to 36V
DCIN to GND.............................................. –0.3V to 36V
FAULT, CHRG, V_CELL, V_CDIV, SENSE, BAT, TOC
or READY to GND............................ –0.3V to V_CC + 0.3V
SENSE to BAT.........................................................±0.3V
CHEM, V_TEMP or TIMER to GND................ –0.3V to 3.5V
PGND to GND.........................................................±0.3V
Operating Ambient Temperature Range
(Note 2)........................................................ 0°C to 85°C
Operating Junction Temperature (Note 3).............. 125°C
Storage Temperature Range...................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
Pin Configuration
TOP VIEW
DCIN 1
20 INFET
FAULT 2
19 READY
CHRG 3
CHEM 4
18 V_CC
17 TGATE
GND 5
V_RT 6
16 PGND
21
15 BGATE
V_TEMP 7
14 INTV_DD
V_CELL 8
13 TOC
V_CDIV 9
12 BAT
TIMER 10
11 SENSE
FE PACKAGE
20-LEAD PLASTIC TSSOP
T_JMAX = 125°C, θ_JA = 38°C/W
EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
TO OBTAIN SPECIFIED THERMAL RESISTANCE
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC4011CFE#PBF
LTC4011CFE#TRPBF
LTC4011CFE
20-Lead Plastic TSSOP
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC4011CFE
LTC4011CFE#TR
LTC4011CFE
20-Lead Plastic TSSOP
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
0°C to 85°C
TEMPERATURE RANGE
0°C to 85°C
Electrical Characteristics (Note 4) The l indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_CC = 12V, BAT = 4.8V, GND = PGND = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
V_CC Supply
V_CC
Input Voltage Range
l
4.5
34
V
I_SHDN
Shutdown Quiescent Current (Note 5)
V_CC = BAT = 4.8V
5
10
µA
I_Q
Quiescent Current
Waiting to Charge (Pause)
l
3
5
mA
I_CC
Operating Current
Fast Charge State, No Gate Load
l
5
9
mA
V_UVLO
Undervoltage Threshold Voltage
V_CC Increasing
l 3.85
4.2
4.45
V
V_UV(HYST) Undervoltage Hysteresis Voltage
170
mV
V_SHDNI
Shutdown Threshold Voltage
DCIN – V_CC, DCIN Increasing
l
5
30
60
mV
V_SHDND Shutdown Threshold Voltage
DCIN – V_CC, DCIN Decreasing
l
–60
–25
–5
mV
V_CE
Charge Enable Threshold Voltage
V_CC – BAT, V_CC Increasing
l
400
510
600
mV
INTV_DD Regulator
V_DD
Output Voltage
I_DD
Short-Circuit Current (Note 6)
INTV_DD(MIN) Output Voltage
No Load
INTV_DD = 0V
V_CC = 4.5V, I_DD = –10mA
l
4.5
5
5.5
V
l –100
–50
–10
mA
l 3.85
V
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