Spansion Power Management IC for Automotive S6BP401A

Spansion® Power Management IC for Automotive
S6BP401A
Multi-channel PMIC for Advanced
Driver Assistance Systems (ADAS)
brings new levels of performance and
smaller, cost-effective systems
Spansion S6BP401A is the company’s first automotive-grade,
6-channel power management IC for advanced driver assistance
systems (ADAS). This single-chip solution has a 6-channel power
output, which includes a 4-channel DC/DC converter and 2-channel
LDO. Integrating output setting impedance and phase compensation
circuits internally for all channels, the S6BP401A reduces the PCB
size and bill of materials, enabling a smaller, cost-effective ADAS.
This series of parts is equipped with a built-in windowed watchdog
timer, separate pins to turn on/off each channel and dedicated pins
to monitor the power integrity of each channel. This ensures a
highly-reliable system, compliant with automotive safety integrity
level-B (ASIL-B). Each output level is compatible with various system
requirements and each voltage level is set when the product is
shipped from the factory in accordance with customer specifications.
applications
•
Advanced driver assistance systems
•
Automotive applications
•
Security camera system
•
Industrial applications
features
•
Quad buck DC/DC converter (DD1 to DD4)
- Input voltage range: 4.5V to 5.5V
- Switching frequency: 1.8MHz to 2.4MHz (external clock mode)
2.0MHz to 2.2MHz (internal clock mode)
- Built-in switching FETs
•
Dual LDO (LDO1, LDO2)
- Input voltage range: 2.97V to 5.5V
•
Built-in output voltage setting resistors
•
Built-in compensation circuits
•
Power good monitor output for each DC/DC converters, LDOs
•
Hard pin enable/disable for each channel
•
Built-in windowed watchdog timer
•
Protection function: UVLO, TSD, OCP, OVP, UVP
•
Small 6mm x 6mm QFN-40 package
•
Operating temperature (Ta): -40°C to +125°C
•
Maximum junction temperature (Tjmax): +150°C
•
Compliant with AEC-Q100, ISO26262
application block diagram
DC/DC1: 1.25V(2Amax)
DDR
+B
Primary
DC/DC
5V
DC/DC2: 1.1V(3Amax)
DC/DC3: 1.2V(2Amax)
Processor
S6BP401A
DC/DC4: 3.3V(1Amax)
LDO1: 3.3V(0.2Amax)
LDO2: 1.8V(0.4Amax)
Camera
Module
Microcontroller
FLASH
minimizes the number of bom and mount area
Spansion’s S6BP401A significantly reduces the BOM and PCB size enabling a smaller, cost-effective ADAS
• Integrate quad buck DC/DC converter, dual LDO and watchdog timer in one package
• Built-in output voltage setting resistors
Parts Area
BOM No.
• Built-in compensation circuits
-49%
Parts are (mm2)
BOM No. (pcs)
40
30
20
10
0
Discrete
-32%
600
400
200
0
Discrete
S6BP401A
S6BP401A
functional safety system capable
Spansion S6BP401A ensures a highly-reliable system compliant
Power supply
with ASIL-B
6ch
• Accurate individual power-good output pins for each channel
Power good signal of
each power line
Enable for 6ch
• Individual enable pins for each channel
• A windowed watchdog timer
S6BP401A
WDT RST
Microcontroller
Heartbeat
from MCU
high current capability and high accuracy output voltage
CH.
Current
Capability [mA]
DD1
2000
DD2
DD3
3000
2000
DD4
1000
LDO1
200
LDO2
400
Configurable(*) Voltage [V]
(*) Factory Setting
Output Voltage
Accuracy (%)
Power Good
Signal Threshold
+/- 1.8%
+/- 6%
+/- 1.8%
+/- 6%
Suitable Application
1.200
1.225
1.250
1.275
1.300
1.325
1.500
1.525
1.550
1.575
1.000
1.025
1.050
1.075
-
1.100
1.125
1.150
1.175
-
1.200
1.225
1.250
1.275
-
1.200
1.225
1.250
1.275
-
MCU
1.500
1.525
1.550
1.575
-
DDR3
1.800
1.825
1.850
1.875
-
2.500
2.525
2.550
2.575
-
1.850
-
-
-
-
3.300
3.325
3.350
3.375
3.400
3.300
3.325
3.350
3.375
3.400
1.200
1.225
1,250
1.275
-
1.800
1.825
1.850
1.875
-
2.800 2.825
2.850
2.875
3.350
+/- 1.8%
+6%, -4.8%
MCU, LPDDR2
MCU
MCU
LPDDR2
MCU
+/- 1.8%
+6%, -4.5%
Flash, CAN, DDR
+/- 1.8%
+/- 6%
MCU (IO)
IO
+/- 1.8%
+/- 6%
IO
Imager
Spansion: 915 DeGuigne Drive, PO Box 3453, Sunnyvale, CA 94088-3453 USA
+1 (408) 962-2500 | 1 866 SPANSION | www.spansion.com
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