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LTC4060EFE#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
LTC4060
4060f
Standalone Linear NiMH/NiCd
Fast Battery Charger
■
Complete Fast Charger Controller for Single,
2-, 3- or 4-Series Cell NiMH/NiCd Batteries
■
No Firmware or Microcontroller Required
■
Termination by –∆V, Maximum Voltage or
Maximum Time
■
No Sense Resistor or Blocking Diode Required
■
Automatic Recharge Keeps Batteries Charged
■
Programmable Fast Charge Current: 0.4A to 2A
■
Accurate Charge Current: ±5% at 2A
■
Fast Charge Current Programmable Beyond 2A with
External Sense Resistor
■
Automatic Detection of Battery
■
Precharge for Heavily Discharged Batteries
■
Optional Temperature Qualified Charging
■
Charge and AC Present Status Outputs Can Drive LED
■
Automatic Sleep Mode with Input Supply Removal
■
Negligible Battery Drain in Sleep Mode: <1µA
■
Manual Shutdown
■
Input Supply Range: 4.5V to 10V
■
Available in 16-Lead DFN and TSSOP Packages
■
Portable Computers, Cellular Phones and PDAs
■
Medical Equipment
■
Charging Docks and Cradles
■
Portable Consumer Electronics
, LTC and LT are registered trademarks of Linear Technology Corporation.
2-Cell, 2A Standalone NiMH Fast Charger with
Optional Thermistor and Charge Indicator
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
The LTC
®
4060 is a complete fast charging system for NiMH
or NiCd batteries. Just a few external components are
needed to design a standalone linear charging system.
An external PNP transistor provides charge current that is
user programmable with a resistor. A small external capaci-
tor sets the maximum charge time. No external current
sense resistor is needed, and no blocking diode is required.
The IC automatically senses the DC input supply and bat-
tery insertion or removal. Heavily discharged batteries are
initially charged at a C/5 rate before a fast charge is applied.
Fast charge is terminated using the –∆V detection method.
Backup termination consists of a programmable timer and
battery overvoltage detector. An optional external NTC ther-
mistor can be used for temperature-based qualification of
charging. An optional programmable recharge feature au-
tomatically recharges batteries after discharge.
Manual shutdown is accomplished with the SHDN pin, while
removing input power automatically puts the LTC4060 into
sleep mode. During shutdown or sleep mode, battery drain
is <1µA.
The LTC4060 is available in both low profile (0.75mm) 16-
pin 5mm × 3mm DFN and 16-lead TSSOP packages. Both
feature exposed metal die mount pads for optimum ther-
mal performance.
2-Cell NiMH Charging Profile
V
CC
V
IN
=
5V
LTC4060
GND
SHDN
CHRG
NTC
PROG
ARCT
SEL0
SEL1
ACP
SENSE
DRIVE
BAT
TIMER
CHEM
PAUSE
330Ω
698Ω
NTC
1.5nF
4060 TA01
NiMH
BATTERY
“CHARGE”
+
CHARGE TIME (MINUTES)
0
3.10
BATTERY VOLTAGE (V)
3.20
3.30
3.40
10 20 30 40
4060 TA01b
50
60
–∆V
TERMINATION
2
LTC4060
4060f
ORDER PART
NUMBER
(Note 1)
V
CC
to GND ............................................... –0.3V to 11V
Input Voltage
SHDN, NTC, SEL0, SEL1, PROG, ARCT,
BAT, CHEM, TIMER, PAUSE ...... –0.3V to V
CC
+ 0.3V
Output Voltage
CHRG, ACP, DRIVE ................... –0.3V to V
CC
+ 0.3V
Output Current (SENSE) ...................................... –2.2A
Short-Circuit Duration (DRIVE) ...................... Indefinite
LTC4060EDHC
ABSOLUTE MAXIMUM RATINGS
W
WW
U
PACKAGE/ORDER INFORMATION
W
U
U
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Operating Ambient Temperature Range
(Note 2) ............................................. – 40°C to 85°C
Operating Junction Temperature (Note 3) ........... 125°C
Storage Temperature Range
TSSOP Package ............................... – 65°C to 150°C
DFN Package .................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
TSSOP Package ................................................ 300°C
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
GND
CHRG
V
CC
ACP
CHEM
NTC
SEL1
SEL0
DRIVE
BAT
SENSE
TIMER
SHDN
PAUSE
PROG
ARCT
TOP VIEW
DHC16 PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 17) IS GND
MUST BE SOLDERED TO PCB TO OBTAIN
θ
JA
= 37°C/W OTHERWISE θ
JA
= 140°C
DHC PART
MARKING
4060
ORDER PART
NUMBER
LTC4060EFE
FE PART
MARKING
4060EFE
FE PACKAGE
16-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
DRIVE
BAT
SENSE
TIMER
SHDN
PAUSE
PROG
ARCT
GND
CHRG
V
CC
ACP
CHEM
NTC
SEL1
SEL0
17
T
JMAX
= 125°C, θ
JA
= 37°C/W
EXPOSED PAD (PIN 17) IS GND
MUST BE SOLDERED TO PCB TO OBTAIN
θ
JA
= 37°C/W OTHERWISE θ
JA
= 135°C
The ● indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, V
BAT
= 2.8V, GND = 0V unless otherwise specified. All
currents into the device pins are positive and all currents out of the device pins are negative. All voltages are referenced to GND
unless otherwise specified.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply
V
CC
Operating Voltage Range (Note 4) ● 4.50 10 V
I
CC
V
CC
Supply Current (Note 9) I
PROG
= 2mA (R
PROG
= 698Ω), 2.9 4.3 mA
PAUSE = V
CC
I
SD
V
CC
Supply Shutdown Current SHDN = 0V 250 325 µA
I
BSD
Battery Pin Leakage Current in Shutdown (Note 5) V
BAT
= 2.8V, SHDN = 0V –1 0 1 µA
I
BSL
Battery Pin Leakage Current in Sleep (Note 6) V
CC
= 0V, V
BAT
= 5.6V –1 0 1 µA
V
UVI1
Undervoltage Lockout Exit Threshold SEL0 = 0, SEL1 = 0 and SEL0 = V
CC
, ● 4.25 4.36 4.47 V
SEL1 = 0, V
CC
Increasing
V
UVD1
Undervoltage Lockout Entry Threshold SEL0 = 0, SEL1 = 0 and SEL0 = V
CC
, ● 4.15 4.26 4.37 V
SEL1 = 0, V
CC
Decreasing
3
LTC4060
4060f
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
The ● indicates specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, V
BAT
= 2.8V, GND = 0V unless otherwise specified. All
currents into the device pins are positive and all currents out of the device pins are negative. All voltages are referenced to GND
unless otherwise specified.
ELECTRICAL CHARACTERISTICS
V
UVI2
Undervoltage Lockout Exit Threshold SEL0 = 0, SEL1 = V
CC
, V
CC
Increasing ● 6.67 6.81 6.95 V
V
UVD2
Undervoltage Lockout Entry Threshold SEL0 = 0, SEL1 = V
CC
, V
CC
Decreasing ● 6.57 6.71 6.85 V
V
UVI3
Undervoltage Lockout Exit Threshold SEL0 = V
CC
, SEL1 = V
CC
, V
CC
Increasing ● 8.28 8.47 8.65 V
V
UVD3
Undervoltage Lockout Entry Threshold SEL0 = V
CC
, SEL1 = V
CC
, V
CC
Decreasing ● 8.18 8.37 8.55 V
V
UVH
Undervoltage Lockout Hysteresis For All SEL0, SEL1 Options 100 mV
Charging Performance
I
FCH
High Fast Charge Current (Notes 7, 10) R
PROG
= 698Ω, 5V < V
CC
< 10V ● 1.9 2 2.1 A
I
FCL
Low Fast Charge Current (Note 7) R
PROG
= 3480Ω, 4.5V < V
CC
< 10V ● 0.35 0.4 0.45 A
I
PCH
High Precharge Current (Note 7) R
PROG
= 698Ω, 4.5V < V
CC
< 10V 320 400 480 mA
I
PCL
Low Precharge Current (Note 7) R
PROG
= 3480Ω, 4.5V < V
CC
< 10V 40 80 120 mA
I
BRD
Battery Removal Detection Bias Current 4.5V < V
CC
< 10V, V
BAT
= V
CC
– 0.4V ● –450 –300 –160 µA
V
BR
Battery Removal Threshold Voltage (Note 8) V
CELL
Increasing, 4.5V < V
CC
< 10V ● 1.95 2.05 2.15 V
V
BRH
Battery Removal Threshold Hysteresis Voltage V
CELL
Decreasing 50 mV
(Note 8)
V
BOV
Battery Overvoltage Threshold (Note 8) V
CELL
Increasing, 4.5V < V
CC
< 10V ● 1.85 1.95 2.05 V
V
BOVH
Battery Overvoltage Threshold Hysteresis (Note 8) V
CELL
Decreasing 50 mV
V
FCQ
Fast Charge Qualification Threshold Voltage V
CELL
Increasing, 4.5V < V
CC
< 10V 840 900 960 mV
(Note 8)
V
FCQH
Fast Charge Qualification Threshold Hysteresis V
CELL
Decreasing 50 mV
Voltage (Note 8)
V
IDT
Initial Delay Hold-Off Threshold Voltage (Note 8) V
CELL
Increasing, 4.5V < V
CC
< 10V 1.24 1.3 1.36 V
V
IDTH
Initial Delay Hold-Off Threshold Hysteresis Voltage V
CELL
Decreasing 50 mV
(Note 8)
V
MDV
–∆V Termination (Note 8) CHEM = V
CC
(NiCd) ● 11 16 21 mV
CHEM = 0V (NiMH)
● 5814mV
V
PROG
Program Pin Voltage 4.5V < V
CC
< 10V, R
PROG
= 635Ω ● 1.45 1.5 1.54 V
and 3480Ω
V
ART
Automatic Recharge Programmed Threshold V
CELL
Decreasing, V
ARCT
= 1.1V, ● 1.065 1.1 1.135 V
Voltage Accuracy (Note 8) 4.5V < V
CC
< 10V
V
ARDT
Automatic Recharge Default Threshold Voltage V
CELL
Decreasing, V
ARCT
= V
CC
, ● 1.235 1.3 1.365 V
Accuracy (Note 8) 4.5V < V
CC
< 10V
V
ARH
Automatic Recharge Threshold Voltage Hysteresis V
CELL
Increasing 50 mV
(Note 8)
V
ARDEF
Automatic Recharge Pin Default Enable Threshold V
CC
V
CC
V
Voltage – 0.8 – 0.2
V
ARDIS
Automatic Recharge Pin Disable Threshold 250 650 mV
Voltage
I
ARL
Automatic Recharge Pin Pull-Down Current V
ARCT
= 1.3V ● 0.15 1.5 µA
V
CLD
NTC Pin Cold Threshold Voltage V
NTC
Decreasing, 4.5V < V
CC
< 10V ● 0.83 • 0.86 • 0.89 • V
V
CC
V
CC
V
CC
V
CLDH
NTC Pin Cold Threshold Hysteresis Voltage V
NTC
Increasing 150 mV
V
HTI
NTC Pin Hot Charge Initiation Threshold Voltage V
NTC
Decreasing, 4.5V < V
CC
< 10V ● 0.47 • 0.5 • 0.53 • V
V
CC
V
CC
V
CC
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LTC4060EFE#TRPBF

Mfr. #:
Buy LTC4060EFE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management St&alone Lin NiMH/NiCd Fast Bat Chr
Lifecycle:
New from this manufacturer.
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