HPM10_16 Datasheet, PDF (8/18 Pages) ON Semiconductor – Power Management IC for Hearing Aids

HPM10
Chip Interface Specifications
HPM10 has a total of 29 pads. Descriptions of these pads are given in Table 5.
Table 5. PAD DESCRIPTIONS
Pin Number
Pad Name
Description
Power Domain
I/O
A/D
Pull
E2
CLKDIV[0]
EXT_CLK divider ratio
VHA
I
D
Dw
D3
CLKDIV[1]
EXT_CLK divider ratio
VHA
I
D
Dw
C3
CLKDIV[2]
EXT_CLK divider ratio
VHA
I
D
Dw
A3
VDDIO
Supply for digital I/O, Should most commonly
be connected to DVREG.
I
P
B1
SCL
I²C serial clock pad
A1
SDA
I²C serial data line
VDDIO
VDDIO
I/O
D
U
I/O
D
U
A2
RESERVED
Do not connect
B2
RESERVED
Do not connect
A4
CCIF
Digital CCIF signal or tri−state Charge status
VDDIO
O
D
C4
ATST_EN
OTP Burn: Connect to VDDIO during OTP
VDDIO
I
D
Ds
burning. Leave floating or grounded for nor-
mal operation.
B3
DS_EN
Deep sleep enable input
VHA
I
D
Ds
D5
AGZN_REG_EN Enable use of regulator when VBAT>1.5 V
VHA
I
D
Uw
D1
EXT_CLK
External clock input
VHA
I
D
Dw
Also used to output oscillator clock to the sys-
tem for test
D2
SWOUT
Level shifted version of SWIN input
VHA
O
D
B4
VSS
Ground for digital circuits
I
P
C5
WARN
Shutdown warning
VHA
O
D
A5
VDDP
VDDP primary charger input
I
P
B5
DVREG
Linear regulator for digital core
O
P
D4
RESERVED
Do not connect
F2
VSSCP
Ground for charge pump
O
P
E3
CP2B
Charge pump cap 2 terminal B
O
A
F3
CP2A
Charge pump cap 2 terminal A
O
A
E5
CP1B
Charge pump cap 1 terminal B
O
A
F5
CP1A
Charge pump cap 1 terminal A
O
A
F1
VHA
Hearing aid DSP voltage connection
O
A
F4
VBAT
Connection to battery
I
P
E4
SWIN
Input for external button
VBAT
I
A
Dw2
C2
VDD_OTP
HV pad normally connected to VDDP used for
OTP programming supply
I
P
E1
VSSA
Ground for analog circuitry and OTP
I
P
Legend:
Type: A = analog; D = digital; I = input; O = output; P = power
Dw = Internal Weak 1 MW pull−down
Uw = Internal Weak 1 MW pull−up
Dw2 = Internal Weak 2 MW pull−down
Ds = Internal 100 KW pull−down
U = Internal 20 kW pull−up: I²C lines can have external pull up for extra drive, value defined by I²C Standard, but not to
be less than 1 kW
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