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Home > Products > Integrated Circuits (ICs) > Specialized ICs

Diodes Incorporated PAM8906M1012-13

Name: PAM8906M1012-13
Brand: Diodes Incorporated
SKU: PAM8906M1012-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PAM8906M1012-13

Manufacturer:: Diodes Incorporated

Category:: Specialized ICs

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: PAM8906M1012-13.pdf

Description:: IC PIEZO SOUNDER DRVR 10MSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PAM8906M1012-13 from Diodes Incorporated is a piezoelectric sounder driver IC with integrated 1.8MHz boost converter, delivering 12V output for 36V_PP piezo drive capability, <1μA shutdown current, and self-excitation mode support. It operates from 2.1–5.5V input, drives two- or three-terminal piezo elements up to 150nF, and targets battery-powered alarms and haptic feedback systems requiring fast 770μs turn-on and low EMI.

For engineers reviewing the PAM8906M1012-13 datasheet, PAM8906M1012-13 pinout, PAM8906M1012-13 application, or PAM8906M1012-13 equivalent, key selection criteria include its 12V fixed boost output, MSOP-10 thermal performance (θ_JA = 105°C/W), self-excitation compatibility with smoke/gas alarm circuits, and dual-mode control via DIN pin for PWM or auto-wake functionality.

Technical Context

The PAM8906M1012-13 integrates a current-mode boost regulator switching at 1.8MHz with cycle-by-cycle overcurrent protection (1A limit) and soft-start (770μs), enabling use of a compact 1µH inductor. Its piezo driver features complementary high-side (7.5Ω R_DS(ON)) and low-side (3Ω R_DS(ON)) outputs with 36V_PP swing across OUTP/OUTN.

Control logic centers on the DIN pin: asserting high enables boost startup and PWM amplification; holding low >100ms triggers shutdown (<1μA I_SD). Feedback (FB) supports both two-terminal (direct VOUT tie) and three-terminal piezo configurations, with external RC network (150kΩ/1nF) enabling self-excitation only in 10V/12V variants.

Key Specifications

Parameter	Value and Actual Design Meaning
Boost Output Voltage	Fixed 12V - sets peak-to-peak drive amplitude for piezo sounders in self-excitation or PWM mode
Max Piezo Load Capacitance	150nF - defines maximum compatible piezo element size without waveform distortion or instability
Startup Delay (t_ON)	770μs typical - time from DIN high to 90% stable VOUT, critical for alarm response timing compliance
Shutdown Current	<1μA - enables multi-year battery life in intermittent-use security alarms
Boost Switching Frequency	1.8MHz - allows small 1µH inductor and minimizes EMI in noise-sensitive environments
Thermal Shutdown Threshold	+150°C with +30°C hysteresis - prevents latch-up during sustained ultrasonic operation or board-level overheating
Input Voltage Range	2.1V to 5.5V - supports single-cell Li-ion, 3×AA, or regulated 3.3V/5V rails without external LDO

Pinout & Package

Supplied in a thermally enhanced MSOP-10 package (3.0mm × 4.9mm, 0.5mm pitch) with exposed pad for improved heat dissipation (θ_JA = 105°C/W, θ_JB = 66°C/W).

Pin/Terminal	Circuit Role	Design Meaning
1 VCC	Internal LDO output	5V supply rail for internal logic; requires 1µF decoupling capacitor for stability
2 GND	Power ground reference	Primary return path for boost, driver, and logic blocks; must be low-impedance PCB plane
3 BOOT	Bootstrap capacitor node	Drives high-side gate; requires 0.1µF ceramic cap rated ≥25V placed adjacent to pin
4 SW	Boost switch node	Connects to inductor and Schottky diode anode; carries high-frequency switching current
5 VOUT	Boost output voltage	12V regulated rail feeding piezo driver; requires 1–2.2µF output capacitor near pin
6 OUTN	Negative piezo output	Complementary driver output; forms differential 36V_PP swing with OUTP across piezo element
7 OUTP	Positive piezo output	High-side driver output; pairs with OUTN for push-pull piezo excitation
8 FB	Feedback input	Connects to VOUT for 2-terminal piezos; ties to external RC network for self-excitation in 12V mode
9 DIN	Digital control input	Enables boost/PWM (VIH ≥1.5V), disables driver (VIL ≤0.4V), and enters shutdown after 100ms low
10 VIN	Battery input	Main power supply (2.1–5.5V); requires 1µF + 10µF decoupling with 10µF near inductor

Key Features

Feature	Design Value
Integrated 1.8MHz boost converter	Enables use of 1µH inductor and reduces solution footprint by eliminating external DC-DC stage
Self-excitation mode (12V version)	Eliminates need for external oscillator in smoke/gas alarms using 150kΩ/1nF timing network on FB
Ultra-low shutdown current (<1μA)	Extends shelf life and operational runtime in battery-powered security devices with infrequent activation
Dual-mode DIN control	Supports both external PWM drive and automatic wake/shutdown-reducing MCU GPIO count and firmware complexity
Comprehensive protection suite	Includes UVLO (1.5V), OTP (+150°C), OCP (1A), OV/UV on VOUT-ensures robust field operation without external supervision

Applications

Smoke/Gas Alarms

Air Humidifiers

Use Scenario: Battery-powered residential smoke detector requiring loud, reliable audible alert under UL 217 standards.

IC Role / Device Role / Timing Role: Piezo driver with self-excitation mode generating resonant 3.2kHz tone without MCU involvement.

Use Value: 36V_PP output delivers >110dB SPL at 30cm using standard 27mm piezo; 770μs startup meets alarm latency requirements.

Use Scenario: Ultrasonic mist generator in consumer humidifier operating continuously from USB 5V supply.

IC Role / Device Role / Timing Role: High-efficiency piezo driver delivering 100kHz+ excitation to ceramic transducer array.

Use Value: 1.8MHz boost switching minimizes EMI coupling into sensitive analog humidity sensors; 12V rail sustains transducer resonance under load variation.

Industrial Security Panels

Haptic Feedback Actuators

Use Scenario: Panel-mounted intrusion alarm with backup coin-cell battery and tamper-triggered siren.

IC Role / Device Role / Timing Role: Low-quiescent-current piezo driver activated by microcontroller GPIO via DIN pin.

Use Value: <1μA shutdown current preserves 10-year coin-cell life; fast 770μs turn-on ensures immediate response to tamper detection event.

Use Scenario: Tactile feedback in medical handheld device requiring precise 250Hz vibration pulses.

IC Role / Device Role / Timing Role: PWM-amplified driver converting MCU-generated pulse train into controlled piezo displacement.

Use Value: Complementary OUTP/OUTN outputs deliver clean differential drive, reducing mechanical ringing and improving tactile fidelity vs. single-ended solutions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar piezo sounder driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Texas Instruments DRV8662	Integrated 100V H-bridge, no boost converter; requires external 12–24V supply	Designed for higher-voltage piezos (>50V_PP) and industrial actuators, not battery-constrained alarms	Select when driving large-format piezos needing >36V_PP or when external high-voltage rail is available
Rohm BD7301FVM	12V boost with 2.1MHz switching, but no self-excitation mode; supports only PWM input	Lacks FB-based oscillator circuitry-requires MCU to generate all timing signals	Choose when system already provides precise PWM timing and board space allows larger inductor (2.2µH minimum)

Compared with DRV8662 and BD7301FVM, the PAM8906M1012-13 uniquely combines integrated 12V boost, self-excitation capability, and sub-1μA shutdown-making it optimal for cost-sensitive, battery-operated alarm systems where MCU resources and board area are constrained.

Availability

PAM8906M1012-13 is available at Aetrix Electronics and suitable for smoke/gas alarms, air humidifiers, and haptic feedback systems requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.

Supply support for PAM8906M1012-13 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 ICs, specializing in power management, signal integrity, and precision analog solutions for industrial, consumer, and automotive markets.

The PAM8906 belongs to Diodes' piezo driver product line, engineered specifically for ultra-low-power, high-SPL audible alerts and ultrasonic actuation in space-constrained, battery-powered systems.

FAQ

What is the maximum recommended piezo capacitance for stable operation?

The PAM8906M1012-13 supports up to 150nF piezo loading per datasheet specifications. Exceeding this value may cause startup failure, waveform distortion, or thermal stress due to increased reactive current. For loads >100nF in smoke alarm applications, Diodes recommends adding a 10µF capacitor directly at the VOUT pin to stabilize regulation.

Can the PAM8906M1012-13 drive three-terminal piezo sounders?

Yes-the PAM8906M1012-13 supports three-terminal piezo configurations using the FB pin with an external RC network (150kΩ/1nF), but only in 10V and 12V versions. The 12V variant enables self-excitation mode for standalone operation without MCU intervention, making it ideal for UL-certified alarm designs.

Does the device require external components for basic operation?

Yes-minimum external components include: 1µH inductor between SW and VOUT, 1µF capacitor at VCC, 1µF + 10µF capacitors at VIN, 0.1µF bootstrap capacitor at BOOT, and 1–2.2µF capacitor at VOUT. Optional Schottky diode between SW and VOUT reduces power loss by ~20% in continuous-drive applications.

How does thermal protection behave during sustained ultrasonic operation?

The PAM8906M1012-13 triggers overtemperature protection at +150°C junction temperature with +30°C hysteresis. During sustained 100kHz ultrasonic drive, thermal performance depends on PCB copper area and airflow; MSOP-10's θ_JB = 66°C/W allows safe operation up to ~1.2W dissipation with 2oz copper and 2cm² thermal pad under typical ambient conditions.

PAM8906M1012-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Type:: Piezo Sounder Driver

Applications:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MSOP

Grade:: Automotive

Qualification:: AEC-Q100

PAM8906M1012-13 FAQ

1.How can I place an order for PAM8906M1012-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for PAM8906M1012-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PAM8906M1012-13 reliable?

The price and inventory of PAM8906M1012-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PAM8906M1012-13 is usually 5 days.

3.What payment methods are accepted for PAM8906M1012-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PAM8906M1012-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PAM8906M1012-13?

PAM8906M1012-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PAM8906M1012-13 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PAM8906M1012-13?

For technical support, including PAM8906M1012-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PAM8906M1012-13 requirements.

6.How does Aetrix verify that PAM8906M1012-13 is sourced from the original manufacturer or authorized distributors?

All PAM8906M1012-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PAM8906M1012-13 meets industry standards.

7.What is the process for return or replacement of PAM8906M1012-13?

All PAM8906M1012-13 units undergo pre-shipment inspection (PSI). If there is an issue with PAM8906M1012-13, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PAM8906M1012-13 part is unused and in its original packaging.

Return procedure for PAM8906M1012-13:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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