Diodes Incorporated AP9211S-AH-HAC-7

Overview

AP9211S-AH-HAC-7 from Diodes Incorporated is a single-chip Li+ battery protection IC integrating dual n-channel MOSFETs (common-drain configuration), overcharge/overdischarge voltage detection (±25 mV accuracy at +25°C), discharge overcurrent sensing (0.05–0.32 V range, ±15 mV accuracy), and short-circuit protection (0.45–0.7 V, ±100 mV). It operates in 1-cell Li-ion packs with 1.5–5.5 V supply and supports 0V battery charge permission.

For engineers reviewing the AP9211S-AH-HAC-7 datasheet, AP9211S-AH-HAC-7 pinout, AP9211S-AH-HAC-7 application, or AP9211S-AH-HAC-7 equivalent, this device delivers integrated cell-level safety control with fixed delay timing, selectable power-down mode, and automotive-grade thermal design in U-DFN2030-6 (Type C) package - critical for portable power management validation.

Technical Context

The AP9211S-AH-HAC-7 implements independent voltage monitoring paths for VDD–VSS (cell voltage) and VM–VSS (current-sense differential), enabling simultaneous overcharge, overdischarge, and overcurrent decisions. Its logic circuit includes auto-release hysteresis control and built-in level-shifted gate drivers for both MOSFETs.

It features two configurable operating modes: power-down (0.1 µA max standby current) requiring charger activation to exit overdischarge, or auto-wake-up (3.5–8 µA active current) enabling recovery via battery voltage rise alone. The overvoltage charger detection (8.0 V typ., ±2 V) operates without delay and isolates the charge path independently of cell voltage thresholds.

Key Specifications

Pinout & Package

AP9211S-AH-HAC-7 is housed in a thermally enhanced U-DFN2030-6 (Type C) package with exposed thermal pad (EP) serving as common drain node for both internal MOSFETs. PCB layout requires large copper area under EP for effective heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5640T102B-TR and BD85501GUL, the AP9211S-AH-HAC-7 uniquely combines full five-function protection (overcharge, overdischarge, discharge overcurrent, short-circuit, charge overcurrent), integrated MOSFETs, and 0V charge capability in a 2.0 × 3.0 mm package - delivering higher functional density and lower system-level BOM cost.

Availability

AP9211S-AH-HAC-7 is available at Aetrix Electronics and suitable for smartphone battery packs, wireless earbud cases, portable medical monitors, and Bluetooth trackers requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for AP9211S-AH-HAC-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 AP9211 belongs to Diodes' battery protection IC product line, engineered specifically for space-constrained, high-reliability 1-cell Li+ applications where integration, accuracy, and ultra-low quiescent current are mandatory.

FAQ

What is the function of the VM pin in AP9211S-AH-HAC-7?

The VM pin serves as the differential current-sense input referenced to VSS, detecting voltage drops across an external sense resistor (R2) to monitor charge/discharge current magnitude. It also functions as the input for overvoltage charger detection (VDD–VM), triggering immediate charge FET shutdown if >8.0 V is sensed - independent of cell voltage thresholds.

Does AP9211S-AH-HAC-7 support automatic recovery from overdischarge without a charger?

No - AP9211S-AH-HAC-7 uses the power-down mode (indicated by blank suffix 'A' in ordering code), which requires charger connection to exit overdischarge status. Recovery occurs only after VDD rises above VDU (2.900 V) while VM is pulled low via RVMS, confirming charger presence and safe reactivation.

How does the U-DFN2030-6 (Type C) package affect thermal performance?

The exposed thermal pad (EP) is electrically connected to both MOSFET drains and must be soldered to ≥100 mm² of inner-layer copper pour. This configuration achieves ≤45°C/W junction-to-board thermal resistance, enabling 9.0 A continuous discharge at +25°C ambient without derating - critical for high-pulse-load applications like power tools.

Can AP9211S-AH-HAC-7 be used in automotive cabin modules?

While not AEC-Q100 qualified, AP9211S-AH-HAC-7 meets extended temperature operation (-40°C to +85°C), has 3000 V HBM ESD rating, and uses lead-free/Green materials compliant with RoHS 3. For automotive use, Diodes recommends contacting their sales team to evaluate PPAP-capable AEC-Q200 variants such as AP9211SA-AH-HAC-7 with auto-wake functionality.