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LTC4010CFE#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LTC4010
1
4010fb
Typical applicaTion
DescripTion
High Efficiency Standalone
Nickel Battery Charger
The LTC
®
4010 provides a complete, cost-effective nickel
battery fast charge solution in a small package using few
external components. A 550kHz PWM current source
controller and all necessary charge initiation, monitoring
and termination control circuitry are included.
The LTC4010 automatically senses the presence of a DC
adapter and battery insertion or removal. When an external
DC source is not present, the LTC4010 enters shutdown
and supply current drawn from an installed battery drops
to the lowest possible level. Heavily discharged batteries
are precharged with a trickle current. The LTC4010 can
simultaneously use both –∆V and ∆T/∆t fast charge ter-
mination techniques and can detect various battery faults.
If necessary, a top-off charge is automatically applied to
NiMH batteries after fast charging is completed. The IC
will also resume charging if the battery self-discharges
after a full charge cycle.
All LTC4010 charging operations are qualified by actual
charge time and maximum average cell voltage. Charging
may also be gated by minimum and maximum temperature
limits. NiMH or NiCd fast charge termination parameters
are pin selectable.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
2A NiMH Battery Charger
FeaTures
applicaTions
n
Integrated or Standalone Battery Charger
n
Portable Instruments or Consumer Products
n
Battery-Powered Diagnostics and Control
n
Back-Up Battery Management
n
Complete NiMH/NiCd Charger for 1 to 16 Cells
n
No Microcontroller or Firmware Required
n
550kHz PWM Current Source Controller
n
No Audible Noise with Ceramic Capacitors
n
Wide Input Voltage Range: 5.5V to 34V
n
Programmable Charge Current: 5% Accuracy
n
Automatic Trickle Precharge
n
–∆V Fast Charge Termination
n
Optional ∆T/∆t Fast Charge Termination
n
Optional Temperature Qualification
n
Automatic NiMH Top-Off Charge
n
Programmable Timer
n
Automatic Recharge
n
Multiple Status Outputs
n
Micropower Shutdown
n
16-Lead Thermally Enhanced TSSOP Package
2A NiMH Charge Cycle at 1C
FAULT
CHRG
READY
V
CC
TGATE
V
CDIV
V
CELL
V
TEMP
LTC4010
TIMER
INTV
DD
GND
CHEM
SENSE
BAT
FROM
ADAPTER
9V
47µH
TO
SYSTEM
LOAD
0.05Ω
2-CELL
NiMH PACK
WITH 10k NTC
4010 TA01a
3k
49.9k
10k
10k
0.1µF
68nF
10µF
33nF
10µF
BGATE
PGND
TIME (MINUTES)
0
1.25
SINGLE CELL VOLTAGE (V)
BATTERY TEMPERATURE (°C)
1.30
1.40
1.45
1.50
1.60
4010 TA01b
1.35
1.55
28
30
34
36
38
42
32
40
40
100
20
60 80
SINGLE CELL
VOLTAGE
CHARGE
CURRRENT
BATTERY
TEMPERATURE
2A
1A
TOP OFF
LTC4010
2
4010fb
absoluTe MaxiMuM raTings
V
CC
(Input Supply) to GND ......................... –0.3V to 36V
FAULT, CHRG, V
CELL
, V
CDIV
, SENSE,
BAT 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
(Note 1)
elecTrical characTerisTics
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 8) 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 V
CC
– BAT, V
CC
Increasing
l
45 65 90 mV
V
SHDND
Shutdown Threshold Voltage V
CC
– BAT, V
CC
Decreasing
l
15 35 60 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 No Load
l
4.5 5 5.5 V
I
DD
Short-Circuit Current (Note 5) INTV
DD
= 0V
l
–100 –50 –10 mA
INTV
DD(MIN)
Output Voltage V
CC
= 4.5V, I
DD
= –10mA
l
3.85 V
(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.
pin conFiguraTion
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
FAULT
CHRG
CHEM
GND
V
TEMP
V
CELL
V
CDIV
TIMER
READY
V
CC
TGATE
PGND
BGATE
INTV
DD
BAT
SENSE
17
T
JMAX
= 125°C, q
JA
= 38°C/W
EXPOSED PAD (PIN 17) IS GND. MUST BE SOLDERED TO
PCB TO OBTAIN SPECIFIED THERMAL RESISTANCE
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4010CFE#PBF LTC4010CFE#TRPBF 4010CFE 16-Lead Plastic TSSOP 0°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4010CFE LTC4010CFE#TR 4010CFE 16-Lead Plastic TSSOP 0°C to 85°C
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/
LTC4010
3
4010fb
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PWM Current Source
V
FS
BAT – SENSE Full-Scale Regulation
Voltage (Fast Charge)
0.3V < BAT < V
CC
– 0.3V (Note 8)
BAT = 4.8V
l
95
95
100
100
105
105
mV
mV
V
PC
BAT – SENSE Precharge Regulation
Voltage
0.3V < BAT < V
CC
– 0.3V (Note 8)
BAT = 4.8V
l
16
16
20
20
24
24
mV
mV
V
TC
BAT – SENSE Top-Off Charge
Regulation Voltage
0.3V < BAT < V
CC
– 0.3V (Note 8)
BAT = 4.8V
l
6.5
6.5
10
10
13.5
13.5
mV
mV
∆V
LI
BAT – SENSE Line Regulation 5.5V < V
CC
< 25V, Fast Charge
±0.3
mV
I
BAT
BAT Input Bias Current 0.3V < BAT < V
CC
– 0.1V –2 2 mA
I
SENSE
SENSE Input Bias Current SENSE = BAT 50 150 µA
I
OFF
Input Bias Current, (V
CELL
= 0V) SENSE
BAT
l
l
–1
0
0
2
1
6
µA
µA
f
TYP
Typical Switching Frequency
l
460 550 640 kHz
f
MIN
Minimum Switching Frequency
l
20 30 kHz
DC
MAX
Maximum Duty Cycle 98 99 %
V
OL(TG)
TGATE Output Voltage Low
(V
CC
– TGATE) (Note 6)
V
CC
> 9V, No Load
V
CC
< 7V, No Load
l
l
5
V
CC
– 0.5
5.6
V
CC
8.75 V
V
V
OH(TG)
TGATE Output Voltage High V
CC
– TGATE, No Load
l
0 50 mV
t
R(TG)
TGATE Rise Time C
LOAD
= 3nF, 10% to 90% 35 100 ns
t
F(TG)
TGATE Fall Time C
LOAD
= 3nF, 10% to 90% 45 100 ns
V
OL(BG)
BGATE Output Voltage Low No Load
l
0 50 mV
V
OH(BG)
BGATE Output Voltage High No Load
l
INTV
DD
– 0.075
INTV
DD
V
t
R(BG)
BGATE Rise Time C
LOAD
= 1.6nF, 10% to 90% 30 80 ns
t
F(BG)
BGATE Fall Time C
LOAD
= 1.6nF, 10% to 90% 15 80 ns
ADC Inputs
I
LEAK
Analog Channel Leakage 0V < V
CELL
< 2V
±100
nA
Charger Thresholds
V
BP
Battery Present Threshold Voltage
l
320 350 370 mV
V
BOV
Battery Overvoltage
l
1.815 1.95 2.085 V
V
MFC
Minimum Fast Charge Voltage
l
850 900 950 mV
V
FCBF
Fast Charge Battery Fault Voltage
l
1.17 1.22 1.27 V
∆V
TERM
–∆V Termination CHEM OPEN (NiCd)
CHEM = 0V (NiMH)
l
l
16
6
20
10
25
14
mV
mV
V
AR
Automatic Recharge Voltage V
CELL
Decreasing
l
1.260 1.325 1.390 V
∆T
TERM
∆T Termination (Note 7) CHEM = 3.3V (NiCd)
CHEM = 0V (NiMH)
l
l
1.3
0.5
2
1
2.7
1.5
°C/min
°C/min
T
MIN
Minimum Charging Temperature
(Note 7)
V
TEMP
Increasing
l
0 5 9 °C
T
MAXI
Maximum Charge Initiation
Temperature (Note 7)
V
TEMP
Decreasing, Not Charging
l
41.5 45 47 °C
T
MAXC
Maximum Charging Temperature
(Note 7)
V
TEMP
Decreasing, Charging
l
57 60 63 °C
V
TEMP(D)
V
TEMP
Disable Threshold Voltage
l
2.8 3.3 V
V
TEMP(P)
Pause Threshold Voltage
l
130 280 mV
elecTrical characTerisTics
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.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LTC4010CFE#TRPBF

Mfr. #:
Buy LTC4010CFE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management NiMH/NiCd Switchmode Standalone Battery Chargers
Lifecycle:
New from this manufacturer.
Delivery:
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