Diodes Incorporated AP9214L-AC-HSBR-7

Overview

AP9214L-AC-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/charge overcurrent protection (±15 mV detection accuracy), and short-circuit protection for 1-cell lithium-ion battery packs in portable power tools, Bluetooth headsets, and medical wearables.

For engineers reviewing the AP9214L-AC-HSBR-7 datasheet, AP9214L-AC-HSBR-7 pinout, AP9214L-AC-HSBR-7 application, or AP9214L-AC-HSBR-7 equivalent, key selection criteria include its U-DFN2535-6 (Type B, Option 2) package, selectable power-down mode, 0V battery charge enable, ±25 mV overcharge detection accuracy, and integrated ultra-low-RDS(ON) MOSFETs eliminating external FETs and sense resistors.

Technical Context

The AP9214L-AC-HSBR-7 implements independent analog comparators for VDD–VSS (cell voltage), VM–VSS (discharge current), and VDD–VM (charge voltage), with fixed delay timers (tCU = 1.0 s typ, tSHORT = 10 μs typ) and internal logic to control gate drive of two N-channel MOSFETs sharing a common drain (EP pad). Its architecture supports latch-mode overcharge protection and auto-release overdischarge recovery.

It features factory-programmed voltage thresholds: overcharge detection at 4.250 V (±25 mV), overdischarge detection at 2.500 V (±35 mV), discharge overcurrent at 0.100 V (±15 mV), and short-circuit detection at 0.600 V (±100 mV), all referenced to VSS with built-in hysteresis and temperature-compensated references.

Key Specifications

Pinout & Package

AP9214L-AC-HSBR-7 uses the U-DFN2535-6 (Type B, Option 2) package: 2.5 mm × 3.5 mm × 0.55 mm body, exposed thermal pad (EP), wettable flank leads, RoHS-compliant matte tin plating.

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 RP506K000B-TR-F, the AP9214L-AC-HSBR-7 uniquely combines integrated ultra-low-RSS(ON) MOSFETs, 0V battery charge enable, and sub-10 µs short-circuit response - making it optimal for space-constrained, high-reliability 1-cell packs where BOM reduction and deep-discharge recovery are critical.

Availability

AP9214L-AC-HSBR-7 is available at Aetrix Electronics and suitable for portable power tools, wireless audio devices, medical wearables, and smart pens requiring stable component supply, guaranteed long-term sourcing, and automotive-grade reliability screening.

Supply support for AP9214L-AC-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 manufacturer specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and protection applications.

The AP9214L belongs to Diodes' battery protection IC product line, engineered specifically for compact, high-efficiency 1-cell Li+ battery packs in consumer and industrial portable electronics.

FAQ

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

Pin 4 is designated NC (No Connect) in the HSBR (Option 2) pinout and must remain electrically floating - no connection to PCB traces, vias, or ground planes. This pin has no internal bond wire and serves only as a mechanical placeholder to maintain package symmetry and thermal balance. Connecting it risks latch-up or undefined behavior per Diodes' DS38413 Rev. 4 specification.

Does AP9214L-AC-HSBR-7 support automatic recovery from overdischarge?

No - AP9214L-AC-HSBR-7 uses power-down mode (not auto-wake-up), so recovery from overdischarge requires external charger application to raise battery voltage above VDU (2.800 V typ). The device remains in ultra-low-current sleep state (≤0.1 µA) until charger voltage is detected at VM, ensuring zero parasitic drain during storage.

How is short-circuit protection implemented without external components?

Short-circuit detection uses the internal VM–VSS comparator set to 0.600 V ±100 mV. When load current causes VM–VSS ≥0.600 V (e.g., 60 A through 10 mΩ path), the 10 µs timer triggers immediate discharge MOSFET shutdown. No external sense resistor or RC network is needed because the MOSFET's intrinsic source resistance and internal comparator eliminate external dependencies.

Can AP9214L-AC-HSBR-7 be used in automotive cabin modules?

No - AP9214L-AC-HSBR-7 is not AEC-Q200 qualified and lacks automotive-specific stress testing, PPAP documentation, or IATF 16949 manufacturing certification. While it operates from −40°C to +85°C, Diodes explicitly states automotive use requires contacting their sales team for qualified variants like AP9214L-AQ series with full change control and qualification reports.