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부품번호 | AAT2610 기능 |
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기능 | Seven-Channel PMU | ||
제조업체 | Skyworks | ||
로고 | |||
전체 30 페이지수
DATA SHEET
AAT2610
Seven-Channel PMU for Digital Still Cameras
General Description
The AAT2610 is a highly integrated power management
solution specifically suited for Digital Still Camera (DSC)
systems, featuring seven DC-DC switching regulators for
maximum operating efficiency.
The input operating voltage range is 1.6 to 5.5V, making
the device an ideal solution for 1-cell Li-ion batteries,
2-cell alkaline batteries, and USB and regulated AC-DC
wall adapters. All seven DC-DC switching regulators fea-
ture high efficiency light load operating mode to extend
battery life while in low power standby state.
Three different DC-DC building blocks provide maximum
design flexibility: a boost (step-up) DC-DC controller
with an output voltage range of 3.0V to 5.5V and a cur-
rent mode control buck (step-down) or boost (step-up)
DC-DC controller with an output voltage range of 2.5V to
the step-up converter (SU) output voltage and buck out-
put range of 0.6V to VIN. Dual current mode control syn-
chronous buck regulators provide low voltage, low noise
outputs required for system logic and memory. Output
voltage range is 0.6V to VIN. The Auxiliary 1 boost (step-
up) is ideally suited for LCD backlight and can drive 1-6
white LEDs up to a maximum of 30mA with ±10% accu-
racy. PWM input controls LED dimming across the fre-
quency range from 10% to 100% duty cycle. The inte-
grated OVP and SCF feature protects the device from
open-circuit LED conditions.
The Auxiliary 2 boost (step-up) and Auxiliary 3 buck-
boost (inverting) output provide low noise (≤30mVpp)
+15V and -7.5V outputs for CCD loads. An expensive
transformer is not required.
No external MOSFETs and low profile TQFN55-40L pack-
age are ideal to save space for DSC solution. Integrated,
low RDS(ON) power MOSFETs provide output voltages from
0.6V to 16VDC and an inverting output up to -10V. The
high switching frequency ensures small external filtering
components. Internal compensation is provided for opti-
mum transient performance and minimum application
design effort.
Features
• Input Voltage Range 1.6 to 5.5V
▪ 1-Cell Li-ion, 2-Cell Alkaline
▪ Adapter or USB Inputs
• 7 Channel up to 96% High Efficiency DC/DCs
▪ Adjustable Output
▪ 4 Channel Synchronous Rectification
▪ Light Load Mode for High Efficiency
• <1µA Total Quiescient Current
• Current Mode Control
▪ Fast, Stable Transient Response
▪ No External Compensation
▪ Current Limit for Internal MOSFET Protection
• High Frequency 1.5MHz System Clock
• High Voltage Series LED Driver
▪ 1 to 6 White LEDs
▪ Up to Maximum 30mA LED Current
▪ External Schottky Diode
▪ ±10% Accuracy Current Sink
▪ Integrated OVP
▪ PWM Dimming: 1k to 30kHz, 10 to 100% Duty
Cycle
• Step-Up and Inverting Outputs for CCD
▪ Low Noise Outputs
▪ Transformerless Inverter Output
• Flexible Sequencing Implementation
▪ Independent Enable Control
▪ 10ms Pre-Programmed Buck or Boost Delay
• Integrated Soft-Start
• Over-Voltage and Over-Temperature Protection
• Pb-free TQFN55-40L Package
• Temperature Range: -40°C to +85°C
Applications
• DSCs and DVCs
• MP3 Players
• PMP
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202208A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 25, 2012
1
DATA SHEET
AAT2610
Seven-Channel PMU for Digital Still Cameras
Pin Descriptions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Symbol
FBL2
FBSD1
PVSD1
LXSD1
PGSD1
PGM
LXM
PVM
FBM
SEQ
SUSD
ENL3
ENL2
ENL1
VIN
GND
PV
ENSD2
ENSD1
ENM
ENSU
Description
Auxiliary 2 (AUX_L2) boost converter feedback pin. This pin is high impedance when the AUX2 controller
is disabled. Connect an external resistor divider between this pin and AUX2 output and GND to set the
AUX2 output voltage with 0.6V.
Step-down 1 (SD1) buck converter feedback pin. This pin is high impedance when the SD1 controller is
disabled. Connect an external resistor divider between this pin and SD1 output and GND to set the SD1
output voltage with 0.6V.
Step-down 1 (SD1) buck converter input pin. Bypass to GND plane with a 1µF ceramic capacitor.
Step-down 1 (SD1) buck converter switching node. Connect this pin to an external inductor. This pin is
high impedance when the SD1 converter is disabled.
Step-down 1 (SD1) buck converter power ground. Tie this pin to ground plane.
Main (SUD) converter power ground. Tie this pin to ground plane.
If is SUSD pulled high, the Main is a boost (step-up) converter and the pin functions as the Main converter
switching node. In this case, connect this pin to the external inductor.
If SUSD is pulled low, the Main is a buck (step-down) converter and the pin functions as the Main converter
switching node. In this case, connect this pin to the external inductor.
In either case, LXM is high impedance when the Main converter is disabled.
If SUSD is pulled high, the Main is a boost (step-up) converter and this pin functions as the Main converter
output. In this case, connect a ceramic capacitor to GND plane from this pin.
If SUSD is pulled low, the Main is a buck (step-down) converter and this pin functions as the Main converter
input voltage. In this case, connect this pin to the external inductor.
Main (M) buck or boost converter feedback pin. This pin is high impedance when the Main controller is
disabled. Connect an external resistor divider between this pin and Main output and GND to set the Main
output voltage with 0.6V.
Main (M) converter open-drain output sequencing pin. This pin is internally pulled low after both SD1 and
SD2 converters completed soft-start and achieved output regulation. This pin can provide gate drive to
external P-channel MOSFETs which disconnect the load during start-up. This pin is open-circuit during
shut-down, overload or during OT trip conditions.
Main converter configuration pin. Tie this pin to high to configure the Main output as a boost (step-up)
converter, or tie this pin to low to configure the Main output as a buck (step-down) converter. This pin
cannot be toggled during operation.
Auxiliary 3 (AUX_L3) buck-boost (inverting) converter active high enable pin. The AUX_L3 output remains
disabled until 2,048 clock cycles after Step-Up (SU) output has reached regulation. The pin has an inter-
nal 330kΩ pull-down resistor.
Auxiliary 2 (AUX_L2) boost converter active high enable pin. The AUX_L2 output remains disabled until
2,048 clock cycles after Step-Up (SU) output has reached regulation. The pin has an internal 330kΩ pull-
down resistor.
Auxiliary 1 (AUX_L1) boost converter active high enable pin. The Main output remains disabled until 2,048
clock cycles after Step-Up (SU) output has reached regulation. The pin has an internal 330kΩ pull-down
resistor. This pin also functions as PWM input for the LED dimming feature. The input PWM frequency is
logic level high and low within 1kHz to 30kHz frequency. PWM dimming input duty cycle (ON-time/TOTAL-
time) range is from 10% to 100%.
Input voltage. Tie this pin to the input of step-up (SU).
Chip ground. Tie this pin to ground plane.
Power input for the PMIC. Connect this pin directly to the PVSU pin.
Step-down 2 (SD2) buck converter active high enable pin. The SD2 output remains disabled until 2,048
clock cycles after Step-Up (SU) output has reached regulation. This pin has an internal 330kΩ pull-down
resistor.
Step-down 1 (SD1) buck converter active high enable pin. The SD1 output remains disabled until 2,048
clock cycles after Step-Up (SU) output has reached regulation. This pin has an internal 330kΩ pull-down
resistor.
Main buck or boost converter active high enable pin. However, the Main output remains disabled until
2,048 clock cycles after Step-Up (SU) output has reached regulation. This pin has an internal 330kΩ pull-
down resistor.
Step-up (SU) boost converter active high enable pin. This pin has an internal 330kΩ pull-down resistor.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
4 202208A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 25, 2012
4페이지 DATA SHEET
AAT2610
Seven-Channel PMU for Digital Still Cameras
Electrical Characteristics1
Unless otherwise noted VPVSU = VPVM= VPVSD1 = VPVSD2 = 3.6V, TA =-40°C to +85°C.
Symbol
General
VIN
ISHDN
Description
Operating Input Voltage Range
Shutdown Supply Current
Quiescient Current into PV Pin
with SU Enabled
Quiescient Current into PV Pin
with SU/SD1/SD2 Enabled
IQ
Quiescient Current into PV Pin
with SU/SUD Enabled
Quiescient Current into PV Pin
with
Oscillator
FOSC Oscillator Frequency Range
SU DC-DC Boost (Step-Up) Converter
VUVLO(SU)
SU Under-Voltage Threshold
VUVLO(SU),HYS
SU Under-Voltage Threshold
Hysteresis
VOUT(SU)
Step-Up Output Voltage Range
VIN(BP-ENTER) Enter Bypass Mode
VIN-HYS(BP-EXIT) Exit Bypass Mode - Hysteresis
Start-Up Delay of SUSD, SD1,
tDELAY
SD2, AUX_L1, AUX_L2, AUX_
L3 after VSU in Regulation
VFBSU
IMODE(SU)
DMAX(SU)
ILEAK(FBSU)
ILEAK(PVSU)
ILEAK(LXSU)
RDSON
ILIMIT
IOFF
ISTARTUP
TOFF(STARTUP)
FOSC(STARTUP)
FBSU Reference Voltage
SU Light Load Mode Current
Threshold
Step-Up Maximum Duty Cycle
FBSU Pin Leakage Current
PVSU Pin Leakage Current
LXSU Pin Leakage Current
N-Channel
P-Channel
N-Channel Current Limit
P-Channel Turn-Off Current
Startup Current Limit
Startup Off-Time
Startup Frequency
Conditions
ILOAD ≤ Full Load (see Tables 1 and 2)
EN_SU = EN_M = EN_SD1 = EN_SD2 = 0V,
EN_DL1 = EN_DL2 = EN_DL3 = 0V
EN_SU = 3.6V, FBSU = 1.5V (does not include
switching losses)
EN_SU = EN_SD1 = EN_SD2 = 3.6V, FBSU =
FBSD1 = FBSD2 = 1.5V, EN_M = EN_DL1 = EN_
DL2 = EN_DL3 = 0V (does not include switching
losses)
EN_SU = EN_M = 3.6V, FBSU = FBSUD = 1.5V,
EN_SD1 = EN_SD2 = EN_DL1 = EN_DL2 = EN_
DL3 = 0 (does not include switching losses)
EN_SU = EN_DL1 = 3.6V, FBSU = FBL1 = 1.5V,
EN_M = EN_SD1 = EN_SD2 = EN_DL1 = EN_DL2
= EN_DL3 = 0(does not include switching losses)
Rising edge
Falling edge
VIN Rising edge
VIN Falling edge
TA = 25°C
1.6 ≤ VPVSU ≤ 5.0V, VFBSU = 0.60V
VFBSU = 0.60V
VLXSU = 0V, VPVSU = 5.5V
VLXSU = VOUT(SU) = 5.5V
VPVSU = 1.8V
VPVSU = 1.8V
VPVSU = 1.8V
Min
1.6
1.2
1.6
3.0
4.625
100
0.585
85
-100
4.1
Typ
0.01
300
600
450
400
1.5
1.8
400
4.750
112
512
0.600
200
95
0.01
0.1
0.1
50
130
5.5
20
1300
700
200
Max
5.5
10
450
900
700
650
1.8
2.0
5.5
4.900
125
0.615
+100
5
5
Units
V
µA
µA
µA
µA
µA
MHz
V
mV
V
V
mV
OSC
Cyc
V
mA
%
nA
µA
µA
mΩ
mΩ
A
mA
mA
ns
kHz
1. The AAT2610 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
202208A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 25, 2012
7
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부품번호 | 상세설명 및 기능 | 제조사 |
AAT2610 | 7-Channel PMU | Advanced Analogic Technologies |
AAT2610 | Seven-Channel PMU | Skyworks |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |