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MAX1507
Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN
Smallest Temperature-Regulated, Linear, 1-Cell Li+ Battery Chargers with 14V Input
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Status
Active: In Production.
Description
The MAX1507 is an intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery. The MAX1507 integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also eliminates the reverse-blocking Schottky diode to create the simplest and smallest charging solution for hand-held equipment.
The MAX1507 functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full-charge indication.
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 IC.
The MAX1507 achieves high flexibility by providing an adjustable fast-charge current and thermal regulation setpoints. Other features include the charging status (active-low CHG) of the battery and an active-low control input (active-low EN).
The MAX1507 accepts a +4.25V to +13V supply, but disables charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX1507 operates over the extended temperature range (-40°C to +85°C) and is available in a compact 8-pin thermally enhanced 3mm x 3mm Thin DFN package with 0.8mm height.
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Data Sheet
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An evaluation kit is available: MAX1507EVKIT, MAX1508EVKIT
Key Features
- Stand-Alone Linear 1-Cell Li+ Battery Charger
- No External FET, Reverse-Blocking Diode, or Current-Sense Resistor Required
- Programmable Fast-Charge Current (0.8A max)
- Proprietary Programmable Die-Temperature Regulation Control (+90°C, +100°C, and +130°C)
- +4.25V to +13V Input Voltage Range with Input Overvoltage Protection (OVP) Above +7V
- Charge-Current Monitor for Fuel Gauging
- Low Dropout Voltage—130mV at 0.425A
- Input Power-Source Detection Output (VL) and Charge-Enable Input (Active-Low EN)
- Soft-Start Limits Inrush Current
- Charge Status Output (Active-Low CHG) for LED or Microprocessor Interface
- Small 3mm x 3mm 8-Pin Thin DFN Package, 0.8mm High
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Applications/Uses
- Bluetooth® Equipment
- Cell Phones/Cordless Phones
- Charging Cradles and Docks
- Digital Cameras and MP3 Players
- PDAs
- USB Appliances
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Key Specifications:
| Battery Chargers |
| Part Number |
Cell Chemistry |
Lithium Ion Cells |
Protected VIN
(V) |
Charging VIN
(V) |
Charge Rate Set by |
Max. ICHG
(A) |
Charge Termination |
Charge Regulation |
EV Kit |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max |
max |
≥ |
max w/pins |
See Notes |
| MAX1507 |
|
1 |
13 |
7 |
Resistor |
0.8 |
External Control |
Linear |
Yes |
-40 to +85 |
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9.6 |
$2.01 @1k |
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See All Battery Chargers (68)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
Application Notes
Reliability Reports
| Show FIT data for: |
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX1507ETA+T
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1507ETA-T
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Active |
TDFN-EP;8 pin;9.6 mm²
Outline Drawing:21-0137 (PDF)
Land Pattern: 90-0059 (PDF)
Use pkgcode/variation: T833-2*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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| MAX1551, MAX1555 |
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Evaluation Kits
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More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2899
Rev 2;
2005-09-15
This page last modified: 2009-10-13
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