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PDF HPM10 Data sheet ( Hoja de datos )
| Número de pieza | HPM10 | |
| Descripción | Power Management IC | |
| Fabricantes | ON Semiconductor | |
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HPM10
Power Management IC for
Hearing Aids
Introduction
HPM10 is a Power Management IC (PMIC) that provides a
high−performance solution for rechargeable batteries in hearing aids
and hearing implant devices. Responsible for generating the voltage
needed by the hearing aid, it manages the charging algorithms such
that the battery autonomy and the number of charging cycles are
optimized. The rechargeable chemistries supported include
silver−zinc (AgZn), and lithium−ion (Li−Ion). HPM10 also detects
zinc−air (Zn−Air) and nickel−metal hydride (Ni−MH) batteries but
doesn’t charge them.
HPM10 includes a Charger Communication Interface (CCIF) to
inform the hearing aid charger about the charging progress. Other
battery information such as voltage levels, current levels, temperature,
and different types of battery failures can also be communicated.
HPM10 has the flexibility that allows easy integration into various
types of hearing aids. It can be used without any connection to the
main hearing aid digital signal processing (DSP), and manage the
switch on and off operation, as well as the battery EOL control
by−itself. Closer integration and communication with the main
hearing aid DSP can also be obtained.
This document contains information on a product under development.
ON Semiconductor reserves the right to change or discontinue this
product without notice.
This document, and the information contained herein, is CONFIDENTIAL AND
PROPRIETARY and the property of Semiconductor Components Industries,
LLC., dba ON Semiconductor. It shall not be used, published, disclosed or
disseminated outside of the Company, in whole or in part, without the written
permission of ON Semiconductor. Reverse engineering of any or all of the
information contained herein is strictly prohibited.
E 2015, SCILLC. All Rights Reserved.
www.onsemi.com
WLCSP29
BARE DIE
CASE 567MK
MARKING DIAGRAM
AWLYYWW
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
Package
Shipping†
HPM10W29A100G
Bare Die
(Pb−Free)
5,000 / Tape
& Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
October, 2015 − Rev. 0
1
Publication Order Number:
HPM10/D
1 page  
HPM10
Table 3. ELECTRICAL SPECIFICATIONS
Description
Symbol
Conditions
Min Typ Max Units Screened
DIGITAL INPUT THRESHOLDS
DS_EN Minimum
Triggerable Pulse Width
ds_pw_min Hearing Aid Mode,
VBAT = 3.8 V
20 100
ms
SCL,SDA, ATST_EN
logic_th CM mode
VDDIO/2
V
HEARING AID MODE CURRENT
HA_Current_Li_Ion
I_HA_Li Hearing Aid Mode, VBAT=3.8 V
68
mA n
HA_Current_AgZn
I_HA_AgZn Hearing Aid Mode, VBAT=1.8 V
30
mA n
3. During OTP programming, the maximum VDDP value is 5.7 V. This allows VDDP to be tied to VDD_OTP.
4. HPM10 is functional in this range, but is not supposed to meet specification in terms of voltages, currents, thresholds and precision.
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
HPM10 Internal Architecture
The architecture of the HPM10 chip is shown in Figure 1.
HPM10
To Charger VDDP
Charger
CCIF Communication
Interface
Battery Monitor
VBAT
to DSP
to DSP
SWIN
SWOUT
WARN
From DSP DS_EN
VDD_OTP
Timers
Oscillators
OTP
System
Controller
To Programmer
SCL
SDA
I2C Interface
DVREG
CREG
ADC (T, I, V)
Temperature
Sensor
Voltage and
Current Source
Charge Control
CLKDIV(2:0)
From DSP or
hardwired
EXT_CLK From DSP
Wakeup/Batt
Detect .
ATST_EN From programmer
VDDIO
Status and
Configuration
Registers
AGZN
Regulator
Step Down
Charge Pump
(DIV3)
VBAT
VSS
VSSA
Battery
AGZN_REG_EN
Voltage
switch
controller
CHA
VHA
CVBAT
To DSP
CP2
CP1
Figure 1. HPM10 Architecture
www.onsemi.com
5
5 Page 
HPM10
• Periodically monitor pin VHA using its on−board ADC
• Monitor SWOUT to determine button press events
• Monitor the WARN to determine if the hearing aid has
been placed in cradle, in which case the DSP should
shut itself down gracefully before HPM10 cuts the
power to VHA.
• Toggle pin DS_EN to logical high (VHA level), if it
needs to put HPM10 into Deep Sleep Mode
(*): CLKDIV can be configured by the DSP (through GPIO
for example) or through physical connection.
In Hearing Aid Mode, voltage monitoring is used to prevent
turn−on if battery voltage is not acceptable, and to control
the output mode of the VHA supply.
The voltage levels and modes are as follows:
• 1.0 V to 1.5 V The battery type could be AgZn, Zn−Air,
or NiMH. A low impedance switch connects VBAT to
VHA to power the DSP.
• 1.5 to 2.2 V The battery type is likely AgZn. If pin
AGZN_REG_EN=floating, then the VHA voltage is
powered by a 1.5 V regulator. This is to protect those
DSPs that are not able to handle the unregulated AgZn
voltage. For those DSP that can handle maximum
AgZn battery voltages, the pin AGZN_REG_EN=0V
will enable the low impedance switch between VBAT
and VHA.
• 3.0 V and above. The battery type is Li_Ion. VHA is
powered by a divide by 3 step down converter.
VBAT voltages outside of these ranges will not enable the
VHA, and the DSP will not be powered. Note that each of
these thresholds have hysteresis to ensure stable operation.
The following figure indicates how HPM10 monitors
voltage in Hearing Aid Mode.
VHA
VBAT
VHA ZnAir /AgZn regulator disabled
regulator enabled
VHA Li −Ion
2.0
2.2V
1.5V
1.43V
1.0 1.1V
1.05V_
1.0 2.0
1.1V ZnAir 1.65V
1.2V AgZn 2.0V
2.2V
1.0V
3.0 4.0 VBAT
Li_Ion (ONLY _LI =0)
4.3V
3.0V Charge Pump 4.3V
Li_Ion (ONLY _LI =1)
4.3V
Figure 4. Hearing Aid Mode: Voltage Monitoring
www.onsemi.com
11
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| PDF Descargar | [ Datasheet HPM10.PDF ] | |
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