ADI LTC4120EUD#TRPBF
| Manufacturer | |
| MPN | LTC4120EUD#TRPBF |
| LCSC Part # | C687328 |
| Packaging | QFN-16(3x3) |
| Customer # | |
| Key Attributes | 12.5V~40V 1~2 QFN-16(3x3) Battery Chargers RoHS |
| Datasheet | ADI LTC4120EUD#TRPBF |
| RoHS Compliance | 1 documents available |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers | |
| Manufacturer | ADI | |
| Packaging | QFN-16(3x3) | |
| Features | Constant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Battery temperature monitoring | |
| Voltage - Supply | 12.5V~40V | |
| Operating Temperature | -40℃~+125℃ | |
| Type of Battery | - | |
| The Chip Type | - | |
| Number of Cells | 1~2 | |
| Charge Current - Max | - | |
| Charging Saturation Voltage | 4.2V |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers | |
| Manufacturer | ADI | |
| Packaging | QFN-16(3x3) | |
| Features | Constant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Battery temperature monitoring | |
| Voltage - Supply | 12.5V~40V | |
| Operating Temperature | -40℃~+125℃ |
| Type | Description | |
|---|---|---|
| Type of Battery | - | |
| The Chip Type | - | |
| Number of Cells | 1~2 | |
| Charge Current - Max | - | |
| Charging Saturation Voltage | 4.2V |
Introduction
The LTC4120 is a constant-current/constant-voltage wireless receiver and battery charger. An external programming resistor sets the charge current up to 400mA. The LTC4120-4.2 is designed for charging Li-Ion/Li-Polymer batteries, while the LTC4120's programmable float voltage accommodates a wide variety of battery chemistries. The LTC4120 employs a Dynamic Harmonization Control (DHC) method to achieve high-efficiency contactless charging across an air gap. The LTC4120 regulates its input voltage via the DHC pin. This approach modulates the resonant frequency of a receiver oscillator circuit to automatically adjust received and transmitted power, providing a highly efficient solution for wireless charging of battery-powered devices. Wireless charging with the LTC4120 offers a means of powering devices in harsh environments without the need for costly, failure-prone connectors. This enables products using the LTC4120 to be charged while sealed inside enclosures, installed in moving or rotating equipment, or used in applications where cleanliness or hygiene is a priority. This full-featured battery charger includes accurate RUN pin threshold, low-voltage battery preconditioning and bad battery fault detection, timer-based charge termination, automatic recharge, and NTC-qualified temperature charging. The FAULT pin provides indication of a bad battery or temperature fault. Once charging is terminated, the LTC4120 signals end-of-charge via the CHRG pin and enters a low-current sleep mode. If the battery voltage drops by 2.2%, an automatic restart function initiates a new charge cycle.
Features
- Dynamic coordination control optimizes wireless charging across wide coupling range
- Wide input voltage range (12.5V to 40V)
- Adjustable battery float voltage (3.5V to 11V)
- Fixed 4.2V float voltage option (LTC4120-4.2)
- Charge current 50mA to 400mA set with single resistor
- ±1% feedback voltage accuracy
- 5% accuracy programmable charge current
- No microprocessor required
- No transformer core
- Thermally enhanced, low-profile 16-lead (3mm×3mm×0.75mm) QFN package
Applications
- Handheld instruments
- Portable medical devices
- Small-form-factor equipment
- Galvanically isolated devices
| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 6.278 | $ 6.28 |
| 200+ | $ 2.4299 | $ 485.98 |
| 500+ | $ 2.344 | $ 1172.00 |
| 1,000+ | $ 2.3018 | $ 2301.80 |
Standard Packaging2500/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers | |
| Manufacturer | ADI | |
| Packaging | QFN-16(3x3) | |
| Features | Constant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Battery temperature monitoring | |
| Voltage - Supply | 12.5V~40V | |
| Operating Temperature | -40℃~+125℃ | |
| Type of Battery | - | |
| The Chip Type | - | |
| Number of Cells | 1~2 | |
| Charge Current - Max | - | |
| Charging Saturation Voltage | 4.2V |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers | |
| Manufacturer | ADI | |
| Packaging | QFN-16(3x3) | |
| Features | Constant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Battery temperature monitoring | |
| Voltage - Supply | 12.5V~40V | |
| Operating Temperature | -40℃~+125℃ |
| Type | Description | |
|---|---|---|
| Type of Battery | - | |
| The Chip Type | - | |
| Number of Cells | 1~2 | |
| Charge Current - Max | - | |
| Charging Saturation Voltage | 4.2V |
Introduction
The LTC4120 is a constant-current/constant-voltage wireless receiver and battery charger. An external programming resistor sets the charge current up to 400mA. The LTC4120-4.2 is designed for charging Li-Ion/Li-Polymer batteries, while the LTC4120's programmable float voltage accommodates a wide variety of battery chemistries. The LTC4120 employs a Dynamic Harmonization Control (DHC) method to achieve high-efficiency contactless charging across an air gap. The LTC4120 regulates its input voltage via the DHC pin. This approach modulates the resonant frequency of a receiver oscillator circuit to automatically adjust received and transmitted power, providing a highly efficient solution for wireless charging of battery-powered devices. Wireless charging with the LTC4120 offers a means of powering devices in harsh environments without the need for costly, failure-prone connectors. This enables products using the LTC4120 to be charged while sealed inside enclosures, installed in moving or rotating equipment, or used in applications where cleanliness or hygiene is a priority. This full-featured battery charger includes accurate RUN pin threshold, low-voltage battery preconditioning and bad battery fault detection, timer-based charge termination, automatic recharge, and NTC-qualified temperature charging. The FAULT pin provides indication of a bad battery or temperature fault. Once charging is terminated, the LTC4120 signals end-of-charge via the CHRG pin and enters a low-current sleep mode. If the battery voltage drops by 2.2%, an automatic restart function initiates a new charge cycle.
Features
- Dynamic coordination control optimizes wireless charging across wide coupling range
- Wide input voltage range (12.5V to 40V)
- Adjustable battery float voltage (3.5V to 11V)
- Fixed 4.2V float voltage option (LTC4120-4.2)
- Charge current 50mA to 400mA set with single resistor
- ±1% feedback voltage accuracy
- 5% accuracy programmable charge current
- No microprocessor required
- No transformer core
- Thermally enhanced, low-profile 16-lead (3mm×3mm×0.75mm) QFN package
Applications
- Handheld instruments
- Portable medical devices
- Small-form-factor equipment
- Galvanically isolated devices
C687328 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |