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PDF DA9062 Data sheet ( Hoja de datos )
| Número de pieza | DA9062 | |
| Descripción | Entry level PMIC | |
| Fabricantes | Dialog Semiconductor | |
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DA9062
Entry level PMIC for applications requiring up to 8.5 A
General description
DA9062 is a power management integrated circuit (PMIC) optimised for supplying systems with
single- and dual-core processors, I/O, DDR memory, and peripherals. It targets mobile device,
medical equipment, entry level IVI system, and FPGA based applications.
DA9062 features four buck converters providing a total current of 8.5 A. High efficiency is achieved
over a wide load range by using automatic Pulse Frequency Modulation (PFM) mode. All power
switches are integrated, therefore, external Schottky diodes are not required. Furthermore, low-
profile inductors can be used with DA9062. Two of the buck converters can be used in a dual-phase
configuration, and one can be used as a DDR VTT supply. The four LDO regulators with
programmable output voltage provide up to 300 mA.
Dynamic voltage control (DVC) allows dynamic control of DA9062 supply voltages according to the
operating point of the system. It is controlled by writing directly to the registers using the I2C
compatible 2-wire interface or the GPIOs.
DA9062 features a programmable power sequencer that handles start-up and shutdown sequences.
Power mode transitions can be triggered with software control, GPIOs, or with the on-key. Several
types of on-key presses can be detected to trigger different power mode transitions.
The real-time clock (RTC) with an external 32 kHz crystal oscillator provides time keeping and alarm
functions. Additionally, the integrated watchdog timer monitors the system.
Five GPIOs are able to perform system functions, including: keypad supervision, application wakeup,
and timing-controlled external regulators/power switches or other ICs.
DA9062 is also available as an automotive AEC-Q100 Grade 3 version.
Key features
■ Input voltage 2.8 to 5.5 V
■ Programmable power mode sequencer
■ Four buck converters with dynamic voltage ■ System supply and junction temperature
control:
monitoring
□ Buck1: 0.3 to 1.57 V, 2.5 A
■ Watchdog timer
□ Buck2: 0.3 to 1.57 V, 2.5 A
■ Five GPIOs
(can be used in dual-phase configuration ■ Coin cell/super-capacitor charger
with Buck1)
□ Buck3: 0.8 to 3.34 V, 2 A
□ Buck4: 0.53 to 1.8 V, 1.5 A
(can be used as DDR VTT supply)
■ Ultra-low power real-time clock with alarm
■ 32 kHz oscillator with external crystal
■ -40 to +85 °C temperature range
□ 3 MHz switching frequency
■ 40-pin QFN 6×6 mm package, 0.5 mm pitch
(enables low profile inductors)
(exposed paddle)
■ Four LDO regulators:
■ Automotive AEC-Q100 Grade 3 variant
□ LDO1: 0.9 to 3.6 V, 100 mA
available
□ LDO2, LDO3, LDO4: 0.9 to 3.6 V, 300 mA
Applications
■ Supply for single core application processors
■ Power supply for entry-level FPGAs
■ E-book readers and entry-level car
infotainment
Datasheet
Revision 3.2
1 of 93
18-Feb-2015
© 2016 Dialog Semiconductor
1 page  
DA9062
Entry level PMIC for applications requiring up to 8.5 A
9.1.4 Crystal.................................................................................................................. 56
9.1.5 Backup battery..................................................................................................... 57
9.2 PCB layout .......................................................................................................................... 57
9.2.1 General recommendations .................................................................................. 58
9.2.2 LDOs and switched mode supplies ..................................................................... 58
9.2.3 32 kHz crystal oscillator ....................................................................................... 58
9.2.4 Optimising thermal performance ......................................................................... 58
10 Ordering information .................................................................................................................. 59
Appendix A Register descriptions................................................................................................... 60
A.1 PAGE 0 ............................................................................................................................... 60
A.1.1 Page control......................................................................................................... 60
A.1.2 Power manager control and monitoring (except IRQs and events)..................... 60
A.1.3 IRQ events ........................................................................................................... 61
A.1.4 IRQ masks ........................................................................................................... 62
A.1.5 System control ..................................................................................................... 63
A.1.6 GPIO control ........................................................................................................ 65
A.1.7 Power supply control ........................................................................................... 68
A.1.8 RTC calendar and alarm...................................................................................... 73
A.2 PAGE 1 ............................................................................................................................... 76
A.2.1 Power sequencer................................................................................................. 76
A.2.2 Power supply control ........................................................................................... 80
A.2.3 BBAT charger control .......................................................................................... 84
A.3 PAGE 2 ............................................................................................................................... 86
A.3.1 Customer trim and configuration ......................................................................... 86
A.3.2 Customer device specific..................................................................................... 89
Revision history................................................................................................................................. 92
Datasheet
Revision 3.2
5 of 93
18-Feb-2015
© 2016 Dialog Semiconductor
5 Page 
DA9062
Entry level PMIC for applications requiring up to 8.5 A
4.2 Watchdog
Unless otherwise noted, the following is valid for TA = -40 to +85 ºC, VSYS = 2.8 to 5.5 V.
Table 6: Watchdog electrical characteristics
Parameter
Symbol
Test conditions
Minimum watchdog time tWDMIN
External 32 kHz oscillator
Internal 25 kHz oscillator
Min Typ Max Unit
110 ms
200 ms
Maximum watchdog time tWDMAX
External 32 kHz oscillator
Internal 25 kHz oscillator
2
2.5
s
s
Minimum assert time of
WDKICK
tWDKICKMIN
150 µs
4.3 2-wire interface
SDA
SCL
START
tF
VIH
VIL
tF
VIH
VIL
tH_STA
tR
tSU_D
1/fSCL
tH_D
tHIGH
tVD_D
tLOW
Figure 3: 2-wire interface timing
ACK
tVD_ACK
STOP
tSU_STO
Unless otherwise noted, the following is valid for TA = -40 to +85 ºC, VSYS = 2.8 to 5.5 V.
Datasheet
Revision 3.2
11 of 93
18-Feb-2015
© 2016 Dialog Semiconductor
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet DA9062.PDF ] | |
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