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PDF CAT3211 Data sheet ( Hoja de datos )
| Número de pieza | CAT3211 | |
| Descripción | I2C Programmable Haptic Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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CAT3211
I2C Programmable Haptic
Driver for Rotary (ERM) DC
Motors
Description
The CAT3211 is an H−Bridge motor driver IC that includes an I2C
programmable haptic generator state machine, internal oscillator and
adjustable LDO voltage regulator, all in one compact solution.
Two operating modes are supported: haptic mode (triggered via
H_TRIG pin or register) and vibrator mode (VIB_EN pin or register).
H−TRIG triggers a haptic sequence where Forward, Coast, Reverse
and Recovery time durations are controlled. All four timer durations
are configured via I2C interface registers.
The LDO output voltage supplying the H−Bridge can be
programmed from 2.0 V to 5.0 V or shorted to VIN (using LDOH
register). This allows the motor to be safely overdriven for short
durations, greatly increasing the user experience.
Driving VIB_EN high sets the H−Bridge to forward direction and
LDO voltage to a predefined vibrator setting (using LDOV register).
The motor can be continuously and safely driven at low voltages in
vibrator mode.
The device is fully protected against POS, NEG and REG short and
over current conditions. Thermal shutdown protection prevents
damage to the device and system during over temperature junction
conditions.
UQFN12 1.7 x 2 mm package is ideal for space constrained
applications.
Features
• Haptic Generator Mode with Programmable Timers
• Internal 1 ms Oscillator ±20%
• 600 mA Output Drive Current
• High Speed 400 kHz I2C Interface
• Internal LDO with Mode Adjustable Output Voltage
• Supply Voltage Range from 2.7 V to 5.5 V
• Internal H−Bridge Driver (0.8 W typ.)
• 1 Amp Diode Clamping Capability (H−Bridge & LDO)
• Zero Current Shutdown Mode
• Thermal Shutdown and Over−current Protection
• Small 1.7 mm x 2 mm, 12−lead UQFN Package
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Eccentric Rotating Mass (ERM) Motor Control
• Haptic Vibrators in Mobile Devices
http://onsemi.com
1
UQFN12
MU SUFFIX
CASE 523AE
MARKING DIAGRAM
KAM
G
KA = Specific Device Code
M = Date Code
G = Pb−Free Package
PIN CONNECTIONS
1 GND
RST
VIB_EN
SDA
H_TRIG
SCL OSC
VIN REG
NEG
POS
PGND
(Top View)
ORDERING INFORMATION
Device
CAT3211MUTAG
Package
UQFN12
(Pb−Free)
Shipping†
3000/
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, 2013
April, 2013 − Rev. 0
1
Publication Order Number:
CAT3211/D
1 page  
CAT3211
Table 5. I2C TIMING CHARACTERISTICS
(Typical values: VIN = 5.0 V, RST = Logic High, TAMB = 25°C unless otherwise specificed.) (Note 6)
Symbol
Parameter
Min
fSCL Interface Clock Frequency (Note 6)
tAA SCL Low to SDA Data Out and ACK Out
tBUF Bus Free Time Before a New Transmission Can Start
tHD:STA Start Condition Hold Time
tLOW
Clock Low Period
tHIGH
Clock High Period
tSU:STA Start Condition Setup Time (For a Repeated Condition)
tHD:DAT Data In Hold Time
tSU:DAT Data In Setup Time
tR SDA and SCL Rise Time (Note 6)
tF SDA and SCL Fall Time (Note 6)
tSU:STO Stop Condition Setup Time
tDH Data Out Hold Time
6. Limits guaranteed by design and statistical analysis.
1.2
0.6
1.2
0.6
0.6
0
100
0.6
50
tF tHIGH tR
tLOW
tLOW
SCL
tSU:STA
SDA IN
tHD:STA
tHD:DAT
tSU:DAT
SDA OUT
tAA tDH
Figure 5. I2C Bus Timing Characteristics
Typ Max
400
0.9
0.3
300
tSU:STO
tBUF
Unit
kHz
ms
ms
ms
ms
ms
ms
ns
ns
ms
ns
ms
ns
http://onsemi.com
5
5 Page 
CAT3211
Table 8. REGISTER MAP
ADD NAME ADDR DEFAULT
CONFIG
00h
01h
OSC 01h 00h
HAPTIC_A 02h
0Ah
HAPTIC_B 03h
85h
LDOH
04h
00h
LDOV 05h 1Ah
B7 B6 B5
B4
X X X H_REPT
XXX
X
COAST_TIMER[3:0]
RECOVERY_TIMER[3:0]
XXX
XXX
B3 B2 B1
TEMP_L
VIB_EN
H_TRIG
OSC_DIV_16 OSC_DIV_4 OSC_DIV_2
FORWARD_TIMER[3:0]
REVERSE_TIMER[3:0]
V_LDO_HAPTIC[4:0]
V_LDO_VIBRATOR[4:0]
B0
CHIP_EN
EXT_OSC
The default register setting after the device power−up is
the following.
• Register bit CHIP_EN high in standby mode. OSC is
internally set for a clock cycle of 1 ms duration.
• Haptic mode default: Forward time = 20 ms, Coast time
= 0 ms, Reverse time = 10 ms, Recovery time = 32 ms.
• Haptic mode default: LDO output set to VIN. Vibrate
mode default LDO output set to 2.5 V.
Table 9. CONFIG & OSC REGISTER BIT MAP
BIT
SETTING CHIP_EN
H_TRIG
VIB_EN
TEMP_L
0 Device Disabled Disabled Temp OK
Standby (Logic OR (Logic OR
with pin
with pin
H_TRIG) VIB_EN)
1 Device Haptic On Vibrator Over Temp
Enabled (Rising
mode
Detected
edge
enabled (Latched)
triggered)
H_REPT
Disabled
Haptic
sequence
repeat
EXT_OSC
Internal
Oscillator
Selected
External
Oscillator
Selected
OSC_DIV_2
OSC Div 2
OFF
OSC Div 2
ON
OSC_DIV_4
OSC Div 4
OFF
OSC Div 4
ON
OSC_DIV_16
OSC Div 16
OFF
OSC Div 16
ON
Table 10. HAPTIC_A & HAPTIC_B REGISTER TIMER BIT MAP
HEX[3:0]
BINARY
FORWARD_TIMER
COAST_TIMER
0 0000
0
0*
1 0001
OSC x 2
OSC x 2
2 0010
OSC x 4
OSC x 4
3 0011
OSC x 6
OSC x 6
4 0100
OSC x 8
OSC x 8
5 0101
OSC x 10
OSC x 10
6 0110
OSC x 12
OSC x 12
7 0111
OSC x 14
OSC x 14
8 1000
OSC x 16
OSC x 16
9 1001
OSC x 18
OSC x 18
A 1010
OSC x 20 *
OSC x 20
B 1011
OSC x 22
OSC x 22
C 1100
OSC x 24
OSC x 24
D 1101
OSC x 26
OSC x 26
E 1110
OSC x 28
OSC x 28
F 1111
OSC x 30
OSC x 30
* Default values
REVERSE_TIMER
0
OSC x 2
OSC x 4
OSC x 6
OSC x 8
OSC x 10 *
OSC x 12
OSC x 14
OSC x 16
OSC x 18
OSC x 20
OSC x 22
OSC x 24
OSC x 26
OSC x 28
OSC x 30
RECOVERY_TIMER
0
OSC x 4
OSC x 8
OSC x 12
OSC x 16
OSC x 20
OSC x 24
OSC x 28
OSC x 32 *
OSC x 36
OSC x 40
OSC x 44
OSC x 48
OSC x 52
OSC x 56
OSC x 60
http://onsemi.com
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CAT3211.PDF ] | |
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