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MAX1501ZETE+ Datasheet

  • MAX1501ZETE+

  • IC BATTERY CHARGER 16-TQFN

  • 16頁(yè)

  • Maxim   Maxim

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19-2800; Rev 0; 4/03
Highly Integrated, Linear Battery Charger with
Thermal Regulation for Portable Applications
General Description
The MAX1501 intelligent, constant-current, constant-
voltage (CCCV), temperature-regulated battery charger
charges a single lithium-ion (Li+) cell or three-cell
NiMH/NiCd batteries. The device integrates the current-
sense resistor, PMOS pass element, and thermal-
regulation circuitry, while eliminating the reverse-
blocking Schottky diode to create the simplest charging
solution for hand-held equipment.
The MAX1501 functions as a stand-alone charger to
control the charging sequence from the prequalification
state through fast charge, top-off, and charge termination
for single-cell Li+ or three-cell NiMH/NiCd batteries.
Alternatively, the MAX1501 collaborates with a host
microprocessor to determine the best charging algorithm.
Proprietary thermal-regulation circuitry limits the die
temperature when fast charging or while exposed to high
ambient temperatures, allowing maximum charging
current without damaging the charger. The MAX1501
continually supplies a regulated output voltage under
no-battery conditions, allowing battery changing.
The device achieves high flexibility by providing an
adjustable fast-charge current, top-off current, safety
timer, and thermal-regulation setpoint. Other features
include input power detection (ACOK) and input under-/
overvoltage protection. The MAX1501 provides active-
low control inputs.
The MAX1501 accepts a 4.5V to 13V supply, but
disables charging when the input voltage exceeds
6.5V, preventing excessive power dissipation. The
MAX1501 operates over the extended temperature
range (-40擄C to +85擄C) and is available in a compact
16-pin thermally enhanced 5mm x 5mm thin QFN
package with 0.8mm profile.
Features
o
Stand-Alone or Microprocessor-Controlled (碌P)
Linear 1-Cell Li+ or 3-Cell NiMH/NiCd Battery
Charger
o
No FET, Reverse-Blocking Diode, or Current-
Sense Resistor Required
o
1.4A (max) Programmable Fast-Charge Current
o
+95擄C, +115擄C, and +135擄C Proprietary
Programmable Die Temperature Regulation
Control
o
4.5V to 13V Input Voltage Range with Input
Overvoltage (OVLO) Protection Above 6.5V
o
Programmable Top-Off Current Threshold: 10%,
20%, or 30% of the Fast-Charge Current
o
Charge-Current Monitor for Fuel Gauging
o
Programmable Safety Timer (3, 4.5, or 6 hours)
o
Input Power Detection Output (ACOK) and Charge
Enable Input (CHGEN)
o
Automatic Recharge
o
Digital Soft-Start Limits Inrush Current
o
Charge Status Outputs for LEDs or 碌P Interface
MAX1501
Ordering Information
PART
MAX1501ETE
TEMP RANGE
-40擄C to +85擄C
PIN-PACKAGE
16 Thin QFN
Typical Operating Circuit
INPUT
4.5V TO 13V
IN
BATT
4.2V 1-CELL Li+
INP
10碌F
Applications
Cellular and Cordless Phones
PDAs
Digital Cameras and MP3 Players
USB Appliances
Charging Cradles and Docks
Bluetooth鈩?Equipment
1碌F
MAX1501
FULLI
GLED
RLED
TEMP
TMAX
SETI
2.8k鈩?/div>
GND
VL
SELV
MODE
CHGEN
V
LOGIC
(鈮?5.5V)
R
PULLUP
ACOK
Pin Configuration appears at end of data sheet.
Bluetooth is a trademark of Ericsson.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX1501ZETE+ 產(chǎn)品屬性

  • Maxim Integrated Products

  • Li-Ion, Li-Pol, NiCD, NiMH

  • 4.2 V, 4.1 V, 4.95 V, 4.5 V

  • 1400 mA (Max)

  • 0 V to 13 V

  • + 85 C

  • - 40 C

  • TQFN EP

  • Tube

  • Yes

  • SMD/SMT

  • 5 mA

  • Charge Management

  • Yes

  • 4 V

  • 4.25 V

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