Diodes Incorporated AP9214LA-AC-HSBR-7

Overview

AP9214LA-AC-HSBR-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) = 13.5 mΩ typ at VDD = 3.9V) in a U-DFN2535-6 (Type B, Option 2) package. It delivers overcharge (VCU = 4.25V ±25mV), overdischarge (VDL = 2.50V ±35mV), discharge/charge overcurrent (VDOC = 0.15V ±15mV; VCOC = −0.10V ±15mV), and short-circuit (VSHORT = 0.55V ±100mV) protection for 1-cell Li-ion packs in portable power tools and medical handheld devices.

For engineers reviewing the AP9214LA-AC-HSBR-7 datasheet, AP9214LA-AC-HSBR-7 pinout, AP9214LA-AC-HSBR-7 application, or AP9214LA-AC-HSBR-7 equivalent, this device supports selectable auto-wake-up mode, 0V battery charge enable, and fixed delay timing-critical for BMS reliability in space-constrained, high-safety battery packs.

Technical Context

The AP9214LA-AC-HSBR-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated comparators for overcharge, overdischarge, and overcurrent events. Its logic circuit drives two integrated N-MOSFETs with common drain (EP pad) to control charge/discharge paths.

It features factory-configured detection thresholds: VCU = 4.25V, VCL = 4.15V, VDL = 2.50V, VDU = 2.70V, VDOC = 0.15V, VSHORT = 0.55V, and VCOC = −0.10V. Delay times (e.g., tCU = 1.0s, tDOC = 12ms, tSHORT = 250μs) are built-in and temperature-compensated (±20% accuracy at +25°C).

Key Specifications

Pinout & Package

Package: U-DFN2535-6 (Type B), Pin-Out Option 2 - 2.5mm × 3.5mm × 0.55mm body with exposed thermal pad (EP) for enhanced heat dissipation in high-current battery packs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 1-cell Li-ion battery protection applications.

Compared with S-8261AAL-M6T1U and RP505K001B-TR-F, the AP9214LA-AC-HSBR-7 uniquely combines 0V charge enable, overvoltage charger detection, and auto-wake-up in a single U-DFN2535-6 package-enabling safer, more autonomous battery operation in premium portable systems.

Availability

AP9214LA-AC-HSBR-7 is available at Aetrix Electronics and suitable for power tools, medical handheld devices, wireless headphones, and smart wearables requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for AP9214LA-AC-HSBR-7 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

Diodes Incorporated is a global semiconductor manufacturer specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.

The AP9214L series targets compact, high-reliability 1-cell Li-ion battery packs-designed to replace discrete protection FETs and controllers with a single, factory-configured IC that reduces PCB area and qualification effort.

FAQ

What is the function of the VM pin on the AP9214LA-AC-HSBR-7?

The VM pin serves as the current-sense input for both charge and discharge paths. It measures the voltage difference between itself and VSS to detect discharge overcurrent (when VM–VSS ≥ 0.15V), charge overcurrent (when VM–VSS ≤ −0.10V), and short-circuit conditions (when VM–VSS ≥ 0.55V). Internally, it connects to pull-up (RVMD) and pull-down (RVMS) resistors during fault states to aid automatic recovery.

Does the AP9214LA-AC-HSBR-7 support overvoltage protection for the charger input?

Yes-it integrates an overvoltage charger detection circuit that monitors the voltage between VDD and VM. When this differential exceeds 8.0V (±2V), the IC immediately disables the charging MOSFET. The charger path re-enables only when the voltage drops below 7.3V (±2V), with no configurable delay, providing direct protection against incompatible or malfunctioning chargers.

How does the auto-wake-up mode differ from power-down mode in this device?

Auto-wake-up mode (enabled in AP9214LA variants) allows the IC to recover from overdischarge without external charger intervention: it resumes normal operation once battery voltage rises above VDU (2.70V) and remains there for tDLR (overdischarge release delay). Power-down mode (AP9214L) forces permanent shutdown until a charger is connected and raises VDD above threshold-making auto-wake-up essential for user-recoverable portable devices.

Can the AP9214LA-AC-HSBR-7 protect a battery that has fully self-discharged to 0V?

Yes-the device includes factory-enabled 0V battery charge functionality. When the battery voltage is 0V, the IC permits charging to begin once the charger applies sufficient voltage to raise VDD above 1.2V (V0CHA), allowing safe reactivation of deeply depleted cells without requiring external wake-up circuitry or manual reset procedures.