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PDF NCP6951B Data sheet ( Hoja de datos )
| Número de pieza | NCP6951B | |
| Descripción | Camera PMIC | |
| Fabricantes | ON Semiconductor | |
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NCP6951B
Camera PMIC with Flash
LED Driver
The NCP6951B integrated circuit is part of the ON Semiconductor
mini power management IC family. It is optimized to supply battery
powered portable application sub−systems such as camera function,
microprocessors... etc. This device integrates one high efficiency
600 mA Step−down DCDC converter with DVS (Dynamic Voltage
Scaling), 5 low dropout (LDO) voltage regulators and a 1.5 A Flash
LED driver in WLCSP24 package.
www.onsemi.com
MARKING
DIAGRAM*
Features
• One Flash LED Driver:
♦ Adaptive boost supply or bypass mode depending on Vin and
Vflash conditions
♦ Programmable flash current from 100 mA to 1.6 A by 100 mA
steps
♦ Programmable safety and inhibit timer to limit the flash duration
and protect the application
• One DCDC Converter:
♦ Peak efficiency 96%
♦ Programmable output voltage from 0.8 V to 2.3 V by 50 mV steps
♦ 600 mA output current capability
• Five Low Noise − Low Dropout Regulators
♦ Programmable output voltage from 1.7 V to 3.3 V for LDOs 1,2,3
♦ Programmable output voltage from 1.2 V to 2.85 V for LDO 4 & 5
♦ 200 mA output current capability: LDO’s 1, 2, 3 & 4
♦ 300 mA output current capability: LDO 5
♦ 45 mVrms low output noise
• Control
♦ 400 kHz / 3.4 MHz I2C control interface
♦ Hardware enable pin
♦ Customizable power up sequencer
• Extended Input Voltage Range 2.5 V to 5.5 V
♦ Support of newest battery technologies
• Optimized Power Efficiency
♦ 82 mA very low quiescent current at no load
♦ Dynamic voltage scaling on DCDC converter
♦ Regulators can be supplied from DCDC converter output
• Small Footprint
♦ Package WLCSP24 2.57 x 1.65 mm2
♦ DCDC converter runs at 3.0 MHz using a 1 mH inductor and
10 mF capacitor or 2.2 mH inductor and 4.7 mF capacitor
WLCSP24
CASE 567JA
6951B
AWLYWW
G
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free Package
*Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
PIN ASSIGNMENT
PGND2 VOUT3 VOUT2 VIN1 VOUT1 PVIN1
A1 A2 A3 A4 A5 A6
SW2
FLSEL AGND
SCL
FB1
SW1
B1 B2 B3 B4 B5 B6
SW2
FLEN AGND HWEN
SDA PGND1
C1 C2 C3 C4 C5 C6
VBST
FL
VBG
VOUT4
VIN2
VOUT5
D1 D2 D3 D4 D5 D6
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 34 of
this data sheet.
Typical Applications
• Cellular Phones
• Digital Cameras
• Personal Digital Assistant and Portable Media Player
• GPS
© Semiconductor Components Industries, LLC, 2015
November, 2015 − Rev. 0
1
Publication Order Number:
NCP6951/D
1 page  
NCP6951B
Table 4. ELECTRICAL CHARACTERISTICS Min & Max Limits apply for TJ up to +125°C unless otherwise specified. PVIN = VIN1
= VIN2 = 3.6 V (Unless otherwise noted). DCDC Output Voltage = 1.2V, LDO1, 2 & 4= 2.8 V, LDO 3 & 5 = 1.8 V, Typical values are
referenced to TJ = + 25°C and default configuration (Note 9).
Symbol
Parameter
Conditions
Min
Typ Max
Unit
SUPPLY CURRENT: Pins VIN1, VIN2, PVIN
IQ Operating quiescent current
ISLEEP
Product sleep mode current
IOFF
Product off current
DCDC CONVERTER
DCDC on – no load – no switching
LDOs off
TA = up to +85°C
DCDC on – no load – no switching
LDOs on – no load
TA = up to +85°C
DCDC Off
LDOs on – no load
TA = up to +85°C
HWEN on
All DCDC and LDOs off
VIN = 2.5 V to 5.5 V
TA = up to +85°C
HWEN off
I2C interface disabled
VIN = 2.5 V to 5.5 V
TA = up to +85°C
−
−
−
−
−
32 −
80 −
55 −
6.0 −
0.7 −
mA
mA
mA
PVIN
IOUTMAX
DVOUT
DCOUT
FSW
RONHS
Input Voltage Range
Maximum Output Current
Output Voltage DC Error
DCDC Output Voltage
Switching Frequency
P−Channel MOSFET ON Resistance
Io=300 mA, PWM mode (Note 9)
Programmable 50 mV steps (Note 9)
From PVIN1 to SW1 pins,
Pvin1 = 3.6 V
2.5
0.6
−1
0.8
2.7
−
− 5.5
V
−−
A
01 %
2.3 V
3 3.3 MHz
185 −
mW
RONLS
N−Channel MOSFET ON Resistance From SW1 to PGND1 pins,
Pvin1 = 3.6 V
− 335 − mW
IPK Peak Inductor Current
Load Regulation
Line Regulation
D Maximum Duty Cycle
Open loop
2.5 V ≤ PVIN ≤ 5.5 V
IOUT from 300 mA to IOUTMAX
IOUT = 100 mA
2.5 V ≤ VIN ≤ 5.5 V
1.0 1.35 1.7
A
− −0.5 − %/A
− 0 − %/V
− 100 −
%
tSTART
Soft−Start Time
From HWEN to 90% of Output Volt-
age (Note 10)
−
128
ms
RDISDCDC DCDC Active Output Discharge
LDO1, LDO2, LDO3
− 7.0 −
W
VIN1 LDO1, LDO2, LDO3 Input Voltage
Range
2.5 − 5.5 V
IOUTMAX1,2,3 Maximum Output Current
200 −
− mA
ILIM1,2,3 Output Current Limitation
(Note 9)
− − 500 mA
ISC1,2,3
Short Circuit Protection
− 130 − mA
Vout1,2,3 Output Voltage
Programmable, see table. (Note 9)
1.7
3.3 V
7. Devices that use non−standard supply voltages which do not conform to the intent I2C bus system levels must relate their input levels to
the VDD voltage to which the pull−up resistors RP are connected.
8. Refer to the Application Information section of this data sheet for more details.
9. Guaranteed by design and characterized.
10. Tested in production at VOUT = 2.0 V.
www.onsemi.com
5
5 Page 
NCP6951B
TYPICAL CHARACTERISTICS
1.0 250
Vin = 5.5 V
Vin = 2.5 V
Vin = 5.0 V
Vin = 1.9 V
Vin = 4.2 V
Vin = 1.8 V
0.5
Vin = 3.6 V
Vin = 1.7 V
200
0
150
−0.5
LDO1
LDO2
LDO3
−1.0
0
50 100 150 200 250 300 350
IOUT (mA)
Figure 10. LDO5 Load Regulation (VOUT = 1.2 V)
300
250
LDO5
LDO4
200
150
1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8
VOUT SETTING (V)
Figure 12. Dropout Voltage vs. VOUT, LDO4 & 5
(IOUT = 200 mA for LDO4 and 300 mA for LDO5)
100
95
90
85
80
75
−40°C
70 25°C
85°C
65
60
3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
VBAT (V)
Figure 14. Flash LED Efficiency vs. Input
Voltage (IFLASH = 700 mA, VIN Falling)
100
2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3
VOUT SETTING (V)
Figure 11. Dropout Voltage vs. VOUT, LDO1, 2
& 3 (IOUT = 200 mA)
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
100
LDO1
LDO2
LDO3
LDO4
LDO5
1000
10,000
100,000
FREQUENCY (Hz)
Figure 13. LDOx PSRR (VIN = 3.6 V − VOUT −
1.8 V − IOUT = 5 mA)
100
90
80
70
60
50
40
30
20
10
0
3.0
3.5
−40°C
25°C
85°C
4.0 4.5
VBAT (V)
5.0 5.5
Figure 15. Torch LED Efficiency vs. Input
Voltage (ITORCH = 300 mA, VIN Falling)
www.onsemi.com
11
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| PDF Descargar | [ Datasheet NCP6951B.PDF ] | |
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