Diodes Incorporated AP9214L-AD-HSBR-7

Overview

AP9214L-AD-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, Bluetooth headsets, and medical wearables.

For engineers reviewing the AP9214L-AD-HSBR-7 datasheet, AP9214L-AD-HSBR-7 pinout, AP9214L-AD-HSBR-7 application, or AP9214L-AD-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 voltage accuracy, and integrated dual-MOSFET architecture eliminating external FETs.

Technical Context

The AP9214L-AD-HSBR-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, tSHORT). Its internal level-shift circuitry enables gate drive of both high-side charging and low-side discharging MOSFETs from a single supply.

It features factory-configurable options: AD denotes overcharge detection voltage = 4.25 V (±25 mV), power-down mode disabled (auto-wake-up), and 0V battery charge enabled. The HSBR suffix confirms U-DFN2535-6 (Type B) Package with Pin-Out Option 2 (S2 at Pin 4, NC at Pin 5).

Key Specifications

Pinout & Package

AP9214L-AD-HSBR-7 uses the U-DFN2535-6 (Type B) package with exposed thermal pad (EP), optimized for space-constrained battery pack PCBs. Pin-Out Option 2 places S2 at Pin 4 and NC at Pin 5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5460N208AA-TR and BD1400GUL, AP9214L-AD-HSBR-7 delivers lower system-level cost through dual-MOSFET integration, enables zero-volt recovery without external circuitry, and provides full bidirectional protection-making it optimal for compact, safety-certified, and maintenance-free battery packs.

Availability

AP9214L-AD-HSBR-7 is available at Aetrix Electronics and suitable for portable power tools, wireless audio accessories, and medical wearable devices requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

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

The AP9214L belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, cost-sensitive 1-cell Li+ applications demanding integrated MOSFETs, ultra-low quiescent current, and factory-configurable safety thresholds.

FAQ

What is the function of the VM pin in AP9214L-AD-HSBR-7?

The VM pin serves as the bidirectional current sense input. It monitors voltage drop across an external sense resistor (R2) between P− and S2 to detect both discharge overcurrent (VM ≥ VDOC) and charge overcurrent (VM ≤ VCOC). Internal RVMS and RVMD resistors enable automatic pull-down/pull-up during fault states to stabilize VM during MOSFET shutdown.

Does AP9214L-AD-HSBR-7 support overvoltage protection for the charger input?

Yes. The device includes a dedicated overvoltage charger detection circuit monitoring VDD–VM. It trips at 8.0 V ±2 V (typical) to disable the charging MOSFET and releases at 7.3 V ±2 V, protecting against faulty or mismatched chargers without requiring external components or delay configuration.

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

This factory-enabled feature allows the IC to activate charging when the battery voltage is 0 V. It permits external chargers to safely initiate trickle charge once VDD rises above 1.2 V (V0CHA), bypassing the normal under-voltage lockout. This extends usability of batteries stored for extended periods without maintenance charging.

What is the significance of the HSBR package designation?

HSBR identifies the U-DFN2535-6 (Type B) package with Pin-Out Option 2: S2 at Pin 4 and NC at Pin 5. This configuration routes the charging MOSFET source to Pin 4 instead of Pin 5, enabling optimized PCB layout for charge-path isolation and reducing trace inductance in high-frequency switching applications.