My Inquiry
My Account
Analog Devices Inc. LTC4010CFE#PBF
- Part No.:
- LTC4010CFE#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Battery Chargers
- Package:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Datasheet:
-
LTC4010CFE#PBF.pdf
- Description:
- IC BATT CHG MULTI 1-16C 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:640
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC4010CFE#PBF from Analog Devices (formerly Linear Technology) is a standalone, high-efficiency NiMH/NiCd battery charger IC supporting 1–16-cell packs with programmable 2A fast charge current, 550kHz synchronous PWM control, and dual –∆V + ∆T/∆t termination. It integrates precharge, top-off, automatic recharge, temperature qualification, and fault detection for portable medical diagnostics, industrial handheld instruments, and backup power systems.
For engineers reviewing the LTC4010CFE#PBF datasheet, LTC4010CFE#PBF pinout, LTC4010CFE#PBF application, or LTC4010CFE#PBF equivalent, key selection considerations include its 16-lead TSSOP package with exposed thermal pad, pin-selectable NiMH/NiCd chemistry mode, ±5% charge current accuracy, micropower shutdown (<10µA), and compatibility with ceramic output capacitors to eliminate audible noise.
Technical Context
The LTC4010CFE#PBF implements a synchronous step-down DC/DC converter architecture using internal TGATE (P-channel) and BGATE (N-channel) drivers, regulated via a 550kHz PWM current source with 95mV full-scale sense voltage (BAT–SENSE). Its analog front-end includes a 12-bit ADC for VCELL, VTEMP, and TIMER inputs, enabling real-time monitoring of single-cell voltage (0.35–1.95V range), NTC thermistor-based temperature (0°C to 63°C qualified), and programmable charge timer.
Charge state logic autonomously sequences through qualification, trickle precharge (C/5), fast charge (1C), top-off (C/10), and automatic recharge (triggered at VCELL < 1.325V), all governed by hardware-based termination algorithms-no firmware or microcontroller required. Fault detection covers overvoltage (1.95V/cell), undervoltage (<350mV/cell), thermal violation, and PWM regulation loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charge Current Accuracy | ±5% - Enables precise C-rate control without calibration; critical for battery longevity in medical and industrial tools. |
| Switching Frequency | 550kHz typical - Allows compact 47µH inductor and low-ESR ceramic capacitors; eliminates coil whine in noise-sensitive applications. |
| Input Voltage Range | 5.5V to 34V - Supports wide-range DC adapters (e.g., 9V–24V wall supplies) and automotive-derived inputs without external regulators. |
| Cell Count Support | 1 to 16 series cells - Configurable via external resistor divider on VCELL/VCDIV; scales from AA NiMH packs to multi-cell industrial battery modules. |
| Termination Methods | –∆V (10mV NiMH / 20mV NiCd) + ∆T/∆t (0.5–2.7°C/min) - Dual-algorithm validation prevents false termination and overcharge in varying ambient conditions. |
| Shutdown Quiescent Current | 5µA typical - Minimizes battery drain during storage; essential for long-idle backup and portable diagnostic devices. |
| Package Thermal Resistance | θJA = 38°C/W - Achieved only when exposed pad (Pin 17) is soldered to PCB ground plane; enables 2A continuous operation without heatsink. |
Pinout & Package
16-lead thermally enhanced TSSOP (FE package) with exposed GND pad (Pin 17) requiring PCB soldering for thermal performance. Pin pitch: 0.65mm; body size: 5mm × 4.4mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FAULT (1) | Open-drain fault indicator | Active-low signal asserting on overvoltage, thermal fault, or PWM regulation failure; drives LED directly with pull-up. |
| CHRG (2) | Open-drain charge status | Active-low during precharge, fast charge, and top-off; indicates active energy transfer to battery pack. |
| CHEM (3) | Chemistry select input | GND = NiMH (6mV –∆V, 0.5°C/min ∆T); floating or >2.85V = NiCd (20mV –∆V, 1.3°C/min ∆T). |
| GND (4) | Analog reference ground | Single-point return for precision voltage references; must be star-connected to PGND near IC. |
| VTEMP (5) | NTC thermistor interface | Accepts 10kΩ NTC (b=3750) to enable temperature qualification, pause, and ∆T/∆t termination. |
| VCELL (6) | Average cell voltage monitor | Reads voltage divider output to enforce per-cell limits (0.35–1.95V); triggers fault if out-of-range. |
| VCDIV (7) | VCELL divider ground switch | Open-drain output tied to GND during active charging; provides accurate divider reference point. |
| TIMER (8) | Charge duration programming | Resistor-to-GND sets max fast charge time (e.g., 49.9kΩ = ~120 min); ±20% accuracy over temperature. |
| SENSE (9) | Current sense input | Measures voltage drop across external sense resistor (e.g., 0.05Ω for 2A); regulates BAT–SENSE to 95mV. |
| BAT (10) | Battery pack connection | High-side connection to battery positive; senses pack voltage and provides return path for charge current. |
| INTVDD (11) | Internal 5V regulator output | Supplies BGATE driver; bypassed with 10µF capacitor; not intended for external load sourcing. |
| BGATE (12) | N-channel MOSFET gate driver | Drives synchronous rectifier FET; rail-to-rail swing up to INTVDD; rise/fall <80ns with 1.6nF load. |
| PGND (13) | Power ground return | Low-impedance return for switching currents; must be short-traced and joined to GND at single point. |
| TGATE (14) | P-channel MOSFET gate driver | Drives high-side switch; output swing clamped to VCC–0.5V (VCC >9V); supports efficient buck topology. |
| VCC (15) | Main power input | Accepts 5.5–34V DC adapter input; includes UVLO (4.2V) and shutdown threshold (VCC–BAT ≥45mV). |
| READY (16) | Charge-enable qualification | Active-low when VCC > BAT+510mV, VCELL in range, and temperature valid; signals system readiness. |
Key Features
| Feature | Design Value |
|---|---|
| No microcontroller required | Fully autonomous charge sequencing (qualification → precharge → fast → top-off → auto-recharge) implemented in analog/digital state machine. |
| Ceramic-capacitor compatible | 550kHz PWM and optimized gate drivers eliminate need for electrolytic capacitors; avoids aging and noise issues in portable designs. |
| Automatic NiMH top-off | Applies C/10 current for tMAX/3 after –∆V or ∆T/∆t termination to compensate for surface charge and ensure full capacity delivery. |
| Multiple fault protections | Detects and latches on cell overvoltage (1.95V), under-voltage (<350mV), thermal excursion (>63°C), and PWM regulation loss. |
| Programmable temperature qualification | Enables/disables thermal monitoring via CHEM pin; allows fixed-temperature cutoff or full ∆T/∆t algorithm based on chemistry. |
| Micropower shutdown | Draws only 5µA from VCC and BAT when DC adapter absent; preserves battery charge during extended idle periods. |
Applications
| Portable Medical Diagnostics | Industrial Handheld Testers |
|---|---|
Use Scenario: Battery-powered ECG or glucose meter requiring reliable, maintenance-free charging across global AC adapters and field use. IC Role / Device Role / Timing Role: Standalone charger managing 4-cell NiMH pack; handles adapter insertion/removal, self-discharge recovery, and safety-critical termination. Use Value: Eliminates firmware development and reduces BOM count; ±5% current accuracy ensures consistent cycle life across 500+ charge cycles. |
Use Scenario: Rugged multimeter or insulation tester used in factories with variable ambient temperatures and infrequent charging cycles. IC Role / Device Role / Timing Role: Autonomous charger with NTC-based temperature qualification and dual-termination to prevent overcharge in hot workshops or cold warehouses. Use Value: Prevents thermal runaway during unattended overnight charging; automatic recharge maintains readiness without user intervention. |
| Backup Power Modules | Wireless Sensor Node Chargers |
Use Scenario: Telecom or security system backup battery module needing fail-safe charging independent of host controller. IC Role / Device Role / Timing Role: Primary charge controller for 8-cell NiCd/NiMH stack; uses READY signal to enable system power-on only after safe qualification. Use Value: Hardware-enforced safety prevents charging damaged or mismatched cells; FAULT output triggers system-level alarm and shutdown. |
Use Scenario: Solar-charged environmental sensor node with intermittent input and long storage periods between deployments. IC Role / Device Role / Timing Role: Low-quiescent charger that enters micropower shutdown when solar input drops, then resumes full charge upon reactivation. Use Value: 5µA shutdown current extends shelf life to >2 years; automatic recharge compensates for NiMH self-discharge during field storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nickel battery charger applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ2002GN | Fixed 1–4 cell support; no ∆T/∆t termination; requires external op-amp for current sensing; 300kHz switching. | Limited to low-cell-count consumer devices; lacks NTC interface and top-off charge. | Select for cost-sensitive, low-complexity 2–4 cell chargers where temperature qualification is unnecessary. |
| MAX1108 | Integrated 12-bit ADC and SMBus interface; supports Li-ion and NiMH; requires external MCU for state management. | Designed for systems with existing microcontrollers; adds software complexity but enables runtime configuration. | Select when programmable charge profiles, telemetry, or multi-chemistry flexibility outweigh autonomy requirements. |
Compared with BQ2002GN and MAX1108, the LTC4010CFE#PBF delivers higher integration (no external op-amp or MCU), wider cell count (1–16), and superior safety (dual-termination + thermal qualification), making it optimal for standalone, safety-critical, or thermally demanding applications.
Availability
LTC4010CFE#PBF is available at Aetrix Electronics and suitable for portable medical diagnostics, industrial handheld testers, and backup power modules requiring stable component supply, long lifecycle support, and guaranteed lead-free compliance.
Supply support for LTC4010CFE#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving precision instrumentation, industrial, and healthcare markets.
The LTC4010CFE#PBF belongs to Linear's legacy battery management IC portfolio, designed specifically for autonomous, high-reliability nickel-based charging in space-constrained, thermally challenging environments without firmware dependency.
FAQ
What battery chemistries does the LTC4010CFE#PBF support?
The LTC4010CFE#PBF supports both NiMH and NiCd batteries. Chemistry selection is controlled by the CHEM pin: grounding it configures –∆V termination at 6mV and ∆T/∆t at 0.5°C/min for NiMH, while leaving it floating or applying >2.85V selects NiCd parameters (20mV –∆V, 1.3°C/min ∆T). The LTC4010CFE#PBF does not support lithium-based chemistries.
How does the LTC4010CFE#PBF handle deeply discharged batteries?
The LTC4010CFE#PBF automatically initiates trickle precharge at C/5 when VCELL falls below 900mV, limiting duration to tMAX/12 minutes. If voltage fails to rise above 900mV within that window, the IC enters fault state. This protects weak or damaged cells from excessive stress while ensuring safe recovery of salvageable packs. The LTC4010CFE#PBF monitors VCELL continuously during precharge.
Can the LTC4010CFE#PBF operate without an external thermistor?
Yes-the LTC4010CFE#PBF operates without an external thermistor. Temperature qualification and ∆T/∆t termination are optional: connecting VTEMP to GND through a 10kΩ resistor disables thermal monitoring, while leaving it unconnected may cause undefined behavior. The LTC4010CFE#PBF still performs –∆V termination and voltage-based safety checks regardless of VTEMP configuration.
What is the purpose of the exposed pad (Pin 17) on the LTC4010CFE#PBF?
The exposed pad (Pin 17) on the LTC4010CFE#PBF is a thermal pad connected internally to GND, and must be soldered to a large PCB copper area to achieve the specified θJA of 38°C/W. Without proper thermal anchoring, junction temperature can exceed 125°C under 2A load, triggering thermal shutdown. The LTC4010CFE#PBF datasheet mandates this connection for rated performance.
Does the LTC4010CFE#PBF require external MOSFETs for operation?
The LTC4010CFE#PBF requires external MOSFETs for full synchronous buck operation: a P-channel high-side switch driven by TGATE and an N-channel synchronous rectifier driven by BGATE. While it can function with only the high-side FET (asynchronous mode), efficiency drops significantly. The LTC4010CFE#PBF's gate drivers are optimized for small-signal FETs with ≤3nF gate capacitance.
LTC4010CFE#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 1 ~ 16
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Timer
- Fault Protection:
- -
- Charge Current - Max:
- -
- Battery Pack Voltage:
- -
- Voltage - Supply (Max):
- 34V
- Interface:
- -
- Operating Temperature:
- 0°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP-EP
LTC4010CFE#PBF FAQ
1.How can I place an order for LTC4010CFE#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC4010CFE#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC4010CFE#PBF reliable?
The price and inventory of LTC4010CFE#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC4010CFE#PBF is usually 5 days.
3.What payment methods are accepted for LTC4010CFE#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC4010CFE#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC4010CFE#PBF?
LTC4010CFE#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC4010CFE#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC4010CFE#PBF?
For technical support, including LTC4010CFE#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC4010CFE#PBF requirements.
6.How does Aetrix verify that LTC4010CFE#PBF is sourced from the original manufacturer or authorized distributors?
All LTC4010CFE#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC4010CFE#PBF meets industry standards.
7.What is the process for return or replacement of LTC4010CFE#PBF?
All LTC4010CFE#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC4010CFE#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC4010CFE#PBF part is unused and in its original packaging.
Return procedure for LTC4010CFE#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC4010CFE#PBF Tags
-
BQ21040DBVR
Texas Instruments
-
MCP73812T-420I/OT
Microchip Technology
-
MCP73831T-2ACI/OT
Microchip Technology
-
MCP73832T-2ACI/OT
Microchip Technology
-
MCP73831T-2DCI/OT
Microchip Technology
-
MCP73832T-2DCI/OT
Microchip Technology
-
MCP73831T-2ATI/OT
Microchip Technology
-
MCP73832T-2ATI/OT
Microchip Technology
-
MCP73831T-5ACI/OT
Microchip Technology
-
MCP73832T-2ACI/MC
Microchip Technology
-
MCP73831T-2ACI/MC
Microchip Technology
-
MCP73831T-2ATI/MC
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
