LTC1732EMS-8.4#PBF Linear Technology Integrated Circuit (Small Outline Packages) In Stock
Linear Technology LTC1732EMS-8.4#PBF is a Li-Ion battery charge controller in a compact 10-pin MSOP package with an 8.4 V termination voltage for 2-cell battery packs. It delivers up to 585 mA charge current with adjustable threshold and supports a 2-channel control scheme for precise charge management. Available worldwide for portable electronics and handheld device designs.
- Manufacturer
- Linear Technology
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LTC1732EMS-8.4#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.9900(MOQ 19)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Li-Ion battery charge controller with 8.4 V termination voltage for 2-cell packs
- Up to 585 mA programmable charge current with adjustable threshold for flexible battery configurations
- Compact 10-pin MSOP package enables space-efficient portable device designs
- Dual-channel control with automatic preconditioning and termination for safe Li-Ion charging
Applications
The LTC1732EMS-8.4#PBF is designed for single or dual-cell Li-Ion battery charger circuits in portable electronics, handheld instruments, and medical devices requiring precise charge termination at 8.4 V. Its programmable charge current up to 585 mA and adjustable threshold make it suitable for custom battery pack designs where charge rate and voltage accuracy are critical. It is commonly used in GPS devices, barcode scanners, and industrial handhelds powered by 2-cell lithium-ion battery packs.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1661 |
| YTEOL | 9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | LINEAR BATTERY CHARGER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 8.8V |
| Supply Voltage-Nom (Vsup) | 9V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How accurately does the LTC1732EMS-8.4#PBF control the 8.4 V charge termination voltage for 2-cell Li-Ion packs?
The LTC1732EMS-8.4#PBF terminates charging at 8.4 V with a typical accuracy of ±1% across the operating temperature range, equating to a worst-case voltage error of ±84 mV. This precision is critical for 2-cell Li-Ion packs where overcharging above 8.4 V per pack can cause thermal runaway. The adjustable threshold resistor allows fine-tuning to match specific battery cell characteristics within this tolerance.
What is the maximum charge current the LTC1732EMS-8.4#PBF can supply, and how is it set?
The LTC1732EMS-8.4#PBF supports a maximum charge current of 585 mA, programmed via an external sense resistor connected to the PROG pin. Setting a 1 kΩ resistor programs a specific current ratio, and the sense resistor value is calculated as RPROG = 1000 × (ICHG_MAX / ICHG). This allows the charge current to be adjusted from a few milliamps to 585 mA to match the battery pack capacity, typically at a C/5 to 1C rate.
How does LTC1732EMS-8.4#PBF handle a deeply discharged Li-Ion cell below 2.5 V per cell?
The LTC1732EMS-8.4#PBF automatically applies a reduced preconditioning current when a Li-Ion cell voltage falls below approximately 2.5 V per cell (5.0 V total for 2-cell pack). During preconditioning, charge current is limited to roughly one-tenth of the programmed charge current, allowing the deeply discharged cell to recover safely before transitioning to constant-current charging at the full 585 mA programmed rate.
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About Linear Technology
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More from Linear Technology
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 19+ | $3.9600 | $75.24 |
| 250+ | $3.3844 | $846.10 |
| 500+ | $3.2500 | $1625.00 |
| 1000+ | $2.9900 | $2990.00 |
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