Diodes Incorporated AP9214L-AH-HSBR-7

Overview

AP9214L-AH-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 at +25°C), 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 built-in delay timing.

For engineers reviewing the AP9214L-AH-HSBR-7 datasheet, AP9214L-AH-HSBR-7 pinout, AP9214L-AH-HSBR-7 application, or AP9214L-AH-HSBR-7 equivalent, this device supports configurable 0V charge enable, selectable power-down mode, overvoltage charger detection (8.0 V fixed), and dual-pin-option U-DFN2535-6 packaging for PCB layout flexibility in space-constrained battery management systems.

Technical Context

The AP9214L-AH-HSBR-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), enabling simultaneous charge/discharge control via integrated MOSFET drivers. Its logic circuit uses fixed internal delay timers (tCU, tDL, tDOC) with ±20% accuracy to prevent false triggering during transient events.

It features two selectable operating modes: power-down (0.1 µA max standby) requiring charger wake-up, or auto-wake-up (5.5 µA max) releasing on voltage recovery. The VM pin interfaces with external sense resistor R2 (2.7 kΩ typical) to detect charge/discharge current polarity and magnitude through programmable VDOC (0.05–0.32 V) and VCOC (−0.2 to −0.05 V) thresholds.

Key Specifications

Pinout & Package

AP9214L-AH-HSBR-7 uses the U-DFN2535-6 (Type B) package with Pin-Out Option 2 (HSBR), featuring an exposed thermal pad (EP) common to both MOSFET drains for enhanced heat dissipation in high-current applications.

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 RP502K001B-TR-F, the AP9214L-AH-HSBR-7 delivers true single-chip bidirectional protection with lower standby current, factory-programmed 0V charge, and configurable hysteresis-reducing external component count by up to 6 parts while enabling higher reliability in consumer and industrial battery packs.

Availability

AP9214L-AH-HSBR-7 is available at Aetrix Electronics and suitable for power tools, medical wearables, portable diagnostic scanners, and smart lock batteries requiring stable component supply, automotive-grade traceability, and long-lifecycle support.

Supply support for AP9214L-AH-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 definitions aligned to AEC-Q200 standards.

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

FAQ

What is the function of the NC pin on AP9214L-AH-HSBR-7?

Pin 5 is designated NC (No Connect) in HSBR pin-out Option 2 and must remain unconnected and floating. It has no internal electrical connection or function. Routing traces to this pin or connecting it to ground/VDD will cause undefined behavior and is strictly prohibited per Diodes' datasheet DS38413 Rev. 4-3.

How does the 0V battery charge function operate in AP9214L-AH-HSBR-7?

The 0V charge function is factory-configured and enabled in this variant. When battery voltage reaches 0 V, the IC permits charging current to flow once VDD rises above 1.2 V (V0CHA), allowing recovery without manual intervention. This avoids permanent capacity loss in devices left unused for extended periods.

Can AP9214L-AH-HSBR-7 support both charge and discharge overcurrent protection simultaneously?

Yes. It independently monitors VM–VSS voltage polarity: positive values trigger discharge overcurrent (VDOC) shutdown, while negative values activate charge overcurrent (VCOC) protection. Each path uses dedicated internal comparators and delay timers (tDOC/tCOC), enabling concurrent but isolated fault responses.

What is the maximum continuous discharge current supported by AP9214L-AH-HSBR-7?

At TA = +25°C, the device supports 9.0 A continuous drain current with VGS = 4.5 V. At +70°C, derating applies to 7.1 A. Actual current capability depends on PCB copper area under EP pad; Diodes recommends ≥200 mm² of 2-oz copper for sustained 6 A operation without thermal shutdown.