Diodes Incorporated AP9214LA-AH-HSB-7

Overview

AP9214LA-AH-HSB-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual N-channel MOSFETs (RSS(ON) ≤ 16 mΩ @ VDD = 4.0V), overcharge/overdischarge voltage detection (±25 mV accuracy), discharge overcurrent sensing (±15 mV), and short-circuit protection with 1 μs response. It operates in 1-cell Li+ battery 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) packaging.

For engineers reviewing the AP9214LA-AH-HSB-7 datasheet, AP9214LA-AH-HSB-7 pinout, AP9214LA-AH-HSB-7 application, or AP9214LA-AH-HSB-7 equivalent, key selection criteria include selectable power-down mode, 0V battery charge enable, auto-release vs latch overcharge behavior, and dual-pin-option compatibility with PCB layout constraints for VM/S2 routing.

Technical Context

The AP9214LA-AH-HSB-7 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (discharge current), and VDD–VM (charge voltage), each feeding into logic-controlled delay timers (tCU/tDL/tDOC ±20% accuracy). Its dual-MOSFET architecture uses common-drain EP pad and separate S1/S2 source terminals to isolate charge and discharge paths while enabling bidirectional current monitoring via R2 sense resistor.

Internal level-shifted gate drivers control the integrated MOSFETs with fixed overvoltage charger detection (8.0 V ±2 V) and dedicated 0V charge circuitry that activates only when battery voltage rises above 1.2 V. The device supports two pin-out options (HSB vs HSBR), differing solely in NC and VM/S2 terminal assignment-no functional difference in protection thresholds or timing.

Key Specifications

Pinout & Package

AP9214LA-AH-HSB-7 uses the U-DFN2535-6 (Type B) package with exposed thermal pad (EP), optimized for compact battery pack PCB layouts. Pin-Out Option 1 (HSB) places NC on Pin 5 and VM on Pin 4; Option 2 (HSBR) swaps these positions. Both variants share identical electrical functionality and thermal performance.

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 RP502K001B-TR-F, the AP9214LA-AH-HSB-7 delivers integrated dual-MOSFET topology, 0V charge capability, and sub-µA power-down mode-making it optimal for space-constrained, long-storage, and bidirectional current-monitoring applications where discrete FETs or higher IQ would compromise reliability or form factor.

Availability

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

Supply support for AP9214LA-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 manufacturer of discrete semiconductors and integrated circuits, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The AP9214L series belongs to Diodes' battery protection IC product line, engineered specifically for compact, high-efficiency 1-cell Li+ battery packs in portable electronics where integration, ultra-low IQ, and robust fault coverage are critical.

FAQ

What is the function of the NC pin on AP9214LA-AH-HSB-7?

The NC (No Connect) pin on AP9214LA-AH-HSB-7 (Pin 5 in HSB configuration) has no internal connection and must remain unconnected on the PCB. It exists solely for mechanical compatibility with the alternate HSBR pin-out variant and does not affect electrical operation, thermal performance, or protection functionality.

How does the 0V battery charge feature operate in practice?

The 0V battery charge function enables recharging of fully depleted cells by activating internal circuitry when battery voltage rises above 1.2 V-typically triggered by residual charger voltage or parasitic leakage. It does not permit charging at true 0 V but allows recovery from near-zero states without external wake-up circuitry, preserving cell longevity.

Can AP9214LA-AH-HSB-7 support simultaneous charge and discharge?

No-AP9214LA-AH-HSB-7 enforces strict separation: the S1 (discharge) and S2 (charge) terminals are independently controlled, and internal logic prevents concurrent conduction. During charging, the discharge MOSFET is forced off; during discharging, the charge MOSFET is disabled-ensuring safe, mutually exclusive power paths.

What is the maximum continuous current rating for AP9214LA-AH-HSB-7?

AP9214LA-AH-HSB-7 supports 9.0 A continuous drain current at +25°C (TA) with VGS = 4.5 V, derating to 7.1 A at +70°C. This rating assumes proper PCB copper area under the EP thermal pad; actual current capability depends on board layout, ambient temperature, and airflow-designers must verify junction temperature stays below +150°C.