Diodes Incorporated AP9214L-AN-HSB-7

Overview

AP9214L-AN-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) = 13 mΩ typ, ID = 9.0 A) and precision voltage/current detection circuitry for 1-cell rechargeable battery packs. It provides overcharge (VCU = 4.25 V ±25 mV), overdischarge (VDL = 2.50 V ±35 mV), discharge overcurrent (VDOC = 0.15 V ±15 mV), short-circuit (VSHORT = 0.55 V ±100 mV), and charge overcurrent (VCOC = −0.10 V ±15 mV) protection with fixed delay timing and 0V charge enable.

For engineers reviewing the AP9214L-AN-HSB-7 datasheet, AP9214L-AN-HSB-7 pinout, AP9214L-AN-HSB-7 application in portable power systems, or AP9214L-AN-HSB-7 equivalent for battery pack safety design, this page delivers verified electrical parameters, dual-MOSFET integration details, U-DFN2535-6 (Type B, Option 1) package mapping, and real-world protection timing behavior - all confirmed against Diodes DS38413 Rev. 4-3.

Technical Context

The AP9214L-AN-HSB-7 implements independent high-accuracy analog comparators for six protection conditions: overcharge (±25 mV at +25°C), overdischarge (±35 mV), discharge overcurrent (±15 mV), short circuit (±100 mV), charge overcurrent (±15 mV), and overvoltage charger (±2 V). Detection thresholds are factory-programmed and non-adjustable.

It integrates two matched N-channel MOSFETs with common drain (EP pad), enabling bidirectional current control: S1 controls discharge path, S2 controls charge path, while VM monitors current-sense voltage across external R2. Internal logic uses fixed delay timers (e.g., tCU = 1.0 s typ, ±20% accuracy) and selectable power-down mode (enabled in -AN variant) to reduce quiescent current to 0.1 µA max.

Key Specifications

Pinout & Package

AP9214L-AN-HSB-7 is housed in a 6-pin U-DFN2535-6 (Type B, Option 1) package with exposed thermal pad (EP). Pin 5 is NC (no connection); EP must be soldered to large copper area for thermal dissipation and electrical grounding of MOSFET drains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S-8261AAL-M6T1U and RP506K000B-TR-F, AP9214L-AN-HSB-7 uniquely combines integrated dual-MOSFETs, overvoltage charger monitoring, and factory-enabled 0V charge in a single RoHS/Green U-DFN package - delivering highest functional density and lowest system-level protection risk.

Availability

AP9214L-AN-HSB-7 is available at Aetrix Electronics and suitable for medical portable monitors, power tool battery packs, wireless headphone charging cases, and rideable scooter battery modules requiring stable component supply, long-lifecycle support, and automotive-grade reliability documentation.

Supply support for AP9214L-AN-HSB-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The AP9214L belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, high-safety 1-cell Li+ applications where integration, accuracy, and ultra-low quiescent current are mandatory.

FAQ

What is the function of the NC pin (Pin 5) on AP9214L-AN-HSB-7?

Pin 5 is a no-connect terminal with no internal bond wire or circuit connection. It must remain electrically floating and unconnected in PCB layout. This pin exists solely for mechanical symmetry in the U-DFN2535-6 (Type B, Option 1) package and has zero electrical function - bridging or routing to it will cause no operational change but may compromise thermal performance if solder mask is omitted.

Does AP9214L-AN-HSB-7 support adjustable overcharge voltage thresholds?

No. The AP9214L-AN-HSB-7 features factory-programmed, non-adjustable overcharge detection voltage (VCU = 4.25 V) and release voltage (VCL = 4.15 V). These values are laser-trimmed during production and cannot be modified via external resistors, pins, or digital interface. Designers must select the correct variant (e.g., AP9214L-AA, -AB, etc.) at order time to match required thresholds.

How does the 0V battery charge function operate in AP9214L-AN-HSB-7?

The 0V charge function allows the IC to initiate charging when battery voltage is 0 V, provided V0CHA ≥1.2 V is met. It operates by enabling internal wake-up circuitry that activates the charging MOSFET (S2) once the charger applies sufficient voltage to raise the cell above the inhibition threshold (V0INH ≤0.45 V). This feature is permanently enabled in the -AN suffix variant and requires no external configuration.

What is the maximum continuous discharge current supported by AP9214L-AN-HSB-7?

AP9214L-AN-HSB-7 supports 9.0 A continuous discharge current at TA = +25°C (PD = 1000 mW limit, RSS(ON) = 13 mΩ typ). At +70°C ambient, derating applies: maximum continuous current drops to 7.1 A. Actual current capability depends on PCB copper area, airflow, and thermal interface to the EP pad - designs must verify junction temperature stays below +150°C under worst-case load.