PAM8904E DRIVER Datasheet

PAM8904E Datasheet, PDF, Equivalent


Part Number

PAM8904E

Description

18VPP OUTPUT PIEZO SOUNDER DRIVER

Manufacture

Diodes

Total Page 10 Pages
Datasheet
Download PAM8904E Datasheet


PAM8904E
PAM8904E
18VPP OUTPUT PIEZO SOUNDER DRIVER
Description
The PAM8904E is a piezo sounder driver with integrated charge
pump boost converter. The PAM8904E is capable of driving a
ceramic/piezo sounder with 27VPP from a 4.5V power supply. The
charge pump can operate in either 1x, 2x or 3x mode.
The boost converter operates at a fixed frequency of 100kHz and
provides a 3X VIN output with a minimum number of external
components. The PAM8904E can drive up to 47nF loading. Diodes
Incorporated’s unique drive technology provides a small inrush
current, low EMI and high efficiency.
The PAM8904E includes built-in automatic shutdown and wake up
that guarantees longer battery life. The PAM8904E features thermal
shutdown, over current protection, over voltage protection and under
voltage lock-out.
The PAM8904E is available in U-QFN3030-16 (Type B), U-QFN3030-
12 (Type A) and W-QFN2020-12 (Type US) packages.
Features
Supply Voltage Range from 1.5V to 5.5V
18VPP Output from a 3V Supply
Integrated Boost Converter Generates up to 13.5V Supply
Input Signal 20Hz to 300kHz
No Voltage Cross Output at Shutdown Mode
Low Current Consumption
Automatic Standby and Wake-up Control
Available in Space Saving Packages U-QFN3030-16 (Type B),
U-QFN3030-12 (Type A) and W-QFN2020-12 (Type US)
Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
Pin 1
NC VIN CP2 VOUT
16 15 14 13
EN1 1
12 NC
EN2 2
11 CP1
DIN 3
10 CN2
NC 4
9 VO1
5 6 78
CN1 GND VO2 NC
U-QFN3030-16 (Type B)
(Top View)
Pin 1
VIN CP2 VOUT
12 11 10
EN1 1
EN2 2
DIN 3
9 CP1
8 CN2
7 VO1
45 6
CN1 GND VO2
U-QFN3030-12 (Type A)/W-QFN2020-12 (Type US)
Applications
Health Care Systems
Alarm Clocks
Security Devices
Home Appliances
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
PAM8904E
Document number: DS41667 Rev. 1 - 2
1 of 10
www.diodes.com
March 2019
© Diodes Incorporated

PAM8904E
Typical Applications Circuit
VIN
CINC=IN2=.22.µ2uFF
EN1
EN2
DIN
GND
CC11==11µuF
CC22==1uµFF
CP1 CN1 CP2
CN2
Oscillator
Charge Pump
(1x / 2x / 3x)
Control
Logic
Short Circuit
Protection
VVOouUtT
CCOOUUTT==22.2.u2FµF
DET
Level shift
VO1
Piezo
sounder
VO2
PAM8904E
Pin Descriptions
Pin Number
U-QFN3030-16
(Type B)
U-QFN3030-12
(Type A)/
W-QFN2020-12
(Type US)
11
22
33
4
54
65
76
8
97
10 8
11 9
12
13 10
14 11
15 12
16
Pin Name
EN1
EN2
DIN
NC
CN1
GND
VO2
NC
VO1
CN2
CP1
NC
VOUT
CP2
VIN
NC
I/O/P
I
I
I
I
P
O
O
I
I
O
I
P
Function
Charge pump mode select 1
Charge pump mode select 2
Signal Input
No Connection
Capacitor 1 Negative Terminal
Ground
Positive Output
No Connection
Negative Output
Capacitor 2 Negative Terminal
Capacitor 1 Positive Terminal
No Connection
Boost Output
Capacitor 2 Positive Terminal
Power Supply
No Connection
PAM8904E
Document number: DS41667 Rev. 1 - 2
2 of 10
www.diodes.com
March 2019
© Diodes Incorporated


Features NEW PRODUCT PAM8904E 18VPP OUTPUT PIEZO SOUNDER DRIVER Description The PAM890 4E is a piezo sounder driver with integ rated charge pump boost converter. The PAM8904E is capable of driving a cerami c/piezo sounder with 27VPP from a 4.5V power supply. The charge pump can opera te in either 1x, 2x or 3x mode. The boo st converter operates at a fixed freque ncy of 100kHz and provides a 3X VIN out put with a minimum number of external c omponents. The PAM8904E can drive up to 47nF loading. Diodes Incorporated’s unique drive technology provides a smal l inrush current, low EMI and high effi ciency. The PAM8904E includes built-in automatic shutdown and wake up that gua rantees longer battery life. The PAM890 4E features thermal shutdown, over curr ent protection, over voltage protection and under voltage lock-out. The PAM890 4E is available in U-QFN3030-16 (Type B ), U-QFN303012 (Type A) and W-QFN2020-1 2 (Type US) packages. Features  Supp ly Voltage Range from 1.5V to 5.5V  18VPP Output from a 3V Supply .
Keywords PAM8904E, datasheet, pdf, Diodes, 18VPP, OUTPUT, PIEZO, SOUNDER, DRIVER, AM8904E, M8904E, 8904E, PAM8904, PAM890, PAM89, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)