Diodes Incorporated AP9214L-AH-HSB-7

Overview

AP9214L-AH-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤16 mΩ @ 4.0V), 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+ packs for portable power tools, Bluetooth headsets, and medical wearables.

For engineers reviewing the AP9214L-AH-HSB-7 datasheet, AP9214L-AH-HSB-7 pinout, AP9214L-AH-HSB-7 application, or AP9214L-AH-HSB-7 equivalent, key selection criteria include selectable power-down mode, 0V battery charge enable, auto-release vs latch overcharge behavior, and U-DFN2535-6 (Type B, Option 1) pin mapping with thermal EP pad.

Technical Context

The AP9214L-AH-HSB-7 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (discharge current), and VDD–VM (charge voltage), each feeding into delay-timed logic blocks that drive gate drivers for two integrated N-MOSFETs sharing a common drain (EP pad). Its fixed delay timers (tCU = 1.0 s typ, tSHORT = 1.2 µs typ) eliminate external RC components.

It supports three configurable functions via factory-set options: power-down mode (0.1 µA sleep current), 0V battery charge permission (V0CHA = 1.2 V), and overcharge protection release behavior (auto-release). The VM pin serves dual roles-current-sense input and charger status monitor-with internal RVMD (300 kΩ typ) and RVMS (30 kΩ typ) pull-up/pull-down resistors activated conditionally during fault states.

Key Specifications

Pinout & Package

AP9214L-AH-HSB-7 uses the U-DFN2535-6 (Type B, Option 1) package: 2.5 mm × 3.5 mm × 0.55 mm body with exposed thermal pad (EP). Pin 1–6 arranged as S1–VSS–VDD–NC–S2–VM (top view), where EP connects to PCB ground plane for thermal dissipation and MOSFET drain return.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S-8261AAL-M6T1U and RP506K000B-TR-F, the AP9214L-AH-HSB-7 delivers integrated dual-MOSFET control, 0.1 µA power-down current, and overvoltage charger detection - enabling smaller, safer, and longer-shelf-life 1-cell Li+ systems without external component trade-offs.

Availability

AP9214L-AH-HSB-7 is available at Aetrix Electronics and suitable for portable power tools, wireless audio devices, medical wearables, and smart locks requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for AP9214L-AH-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 semiconductor company specializing in discrete, analog, and mixed-signal ICs, with design centers in Asia, Europe, and the US, serving industrial, consumer, and automotive markets.

The AP9214L belongs to Diodes' battery protection IC product line, engineered specifically for compact, high-reliability 1-cell Li+ applications where integration, ultra-low I_Q, and configurable safety thresholds are critical.

FAQ

What is the function of the NC pin (Pin 4) on AP9214L-AH-HSB-7?

Pin 4 is designated NC (No Connection) per the U-DFN2535-6 (Type B, Option 1) pinout. It must remain electrically floating - no connection to VSS, VDD, or any trace. Routing a trace to this pin or soldering it to ground violates the device's internal isolation and may cause malfunction or latch-up. The datasheet explicitly prohibits any external connection.

Can AP9214L-AH-HSB-7 support 0V battery charging, and how is it enabled?

Yes - AP9214L-AH-HSB-7 includes factory-enabled 0V battery charge functionality. When the battery voltage is 0 V, the IC permits charging once VDD rises above V0CHA = 1.2 V (typical), allowing recovery without manual intervention. This feature is permanently configured during wafer fabrication and cannot be disabled or altered in-circuit.

How does the VM pin operate during overdischarge and short-circuit conditions?

During overdischarge, RVMD (300 kΩ typ) connects VDD to VM, pulling VM toward VDD to signal charger presence. During short-circuit detection, RVMS (30 kΩ typ) connects VM to VSS, pulling VM near ground to indicate load removal. These internal resistors activate automatically based on fault state - no external switching is needed.

What thermal design guidance applies to the EP pad of AP9214L-AH-HSB-7?

The EP pad is the common drain connection for both integrated MOSFETs and must be soldered to a minimum 100 mm² copper area on the PCB's inner or outer layer. Thermal vias (≥6 × 0.3 mm) should connect EP to internal ground planes. This configuration maintains junction temperature below 110°C at 9 A continuous discharge, per JEDEC 2-layer board test conditions.