Diodes Incorporated AP9214LA-AD-HSBR-7

Overview

AP9214LA-AD-HSBR-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤ 16.5 mΩ), overcharge/overdischarge voltage detection (±25 mV accuracy), discharge overcurrent sensing (±15 mV), and short-circuit protection with 1.2 µs response. It operates in 1-cell Li-ion packs for portable power tools and medical devices requiring ultra-low quiescent current (3.0 µA typ) and thermal-efficient U-DFN2535-6 (Type B, Option 2) packaging.

For engineers reviewing the AP9214LA-AD-HSBR-7 datasheet, AP9214LA-AD-HSBR-7 pinout, AP9214LA-AD-HSBR-7 application, or AP9214LA-AD-HSBR-7 equivalent, this page delivers verified functional specifications, validated pin assignments, real-world protection timing behavior, and direct alternatives for battery pack design validation and BOM optimization.

Technical Context

The AP9214LA-AD-HSBR-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), with dedicated comparators for overcharge (VCU = 4.25 V ±25 mV), overdischarge (VDL = 2.50 V ±35 mV), and charge overcurrent (VCOC = −0.10 V ±15 mV). Its logic circuit controls two integrated N-MOSFETs using common-drain EP pad architecture.

It features factory-configured options: auto-wake-up mode (no external charger required for overdischarge recovery), 0V battery charge enable, and latch-type overcharge protection. Delay times (e.g., tCU = 1.0 s, tSHORT = 1.2 µs) are fixed on-die with ±20% tolerance at +25°C and ±40% across −40°C to +85°C.

Key Specifications

Pinout & Package

AP9214LA-AD-HSBR-7 uses the U-DFN2535-6 (Type B, Option 2) package: 2.5 mm × 3.5 mm × 0.55 mm body with exposed thermal pad (EP) for enhanced heat dissipation. Pin-out Option 2 places VM at Pin 4 and NC at Pin 5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S-8261AAB-M6T1U and RP507K001B-TR-F, the AP9214LA-AD-HSBR-7 delivers full protection integration-including dual MOSFETs, 0V charge, and sub-microsecond short detection-in a single U-DFN2535-6 footprint, reducing total solution size by ≥35% and eliminating 7+ external components.

Availability

AP9214LA-AD-HSBR-7 is available at Aetrix Electronics and suitable for portable power tools, medical wearables, handheld analyzers, and smart locks requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for AP9214LA-AD-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 company specializing in discrete, analog, and mixed-signal ICs, with manufacturing certified to IATF 16949 and product qualification per AEC-Q100/101 standards.

The AP9214L series targets compact, high-reliability Li+ battery protection in space-constrained consumer and industrial applications-designed to replace discrete protection circuits with minimal external components and guaranteed parametric stability across temperature.

FAQ

What is the function of the NC pin on AP9214LA-AD-HSBR-7?

Pin 5 is designated NC (No Connect) in Option 2 pinout and must remain electrically floating-no trace, pad, or solder connection is permitted. This pin has no internal bond wire or circuit connection; grounding or driving it may cause undefined behavior or latch-up. The device functions identically whether the NC pin is left unpopulated or covered with solder mask.

Does AP9214LA-AD-HSBR-7 support reverse polarity protection?

No-the AP9214LA-AD-HSBR-7 does not provide intrinsic reverse polarity protection. External components (R1 and R2) serve as current-limiting resistors if battery or charger is connected backward, but sustained reverse bias exceeds absolute maximum ratings (VDS = −0.3 V min). System-level reverse protection must be implemented externally using diodes or ideal diode controllers.

How is overvoltage charger detection triggered and released?

Overvoltage charger detection activates when voltage between VDD and VM exceeds 8.0 V (±2 V), immediately turning off the charging MOSFET. Release occurs when VDD–VM drops below 7.3 V (±2 V), restoring charge path-both actions occur with no intentional delay, unlike other protection functions. This circuit monitors charger-side faults independently of cell voltage.

Can AP9214LA-AD-HSBR-7 be used in 2-cell battery packs?

No-it is strictly rated for 1-cell Li+ applications with VDD–VSS operating range of 1.5 V to 5.5 V. Applying >5.5 V violates absolute maximum rating (VDS = 12 V limit applies only to MOSFET drain-source, not supply pins) and risks permanent damage. For 2-cell packs, use dedicated 2-cell protection ICs such as AP9221 or Ricoh RP508.