SC900841JVKR2 Freescale Semiconductor, SC900841JVKR2 Datasheet - Page 109

• Manufacturer Part Number: SC900841JVKR2
• Description: IC POWER MGT 338-MAPBGA
• Manufacturer: Freescale Semiconductor

Specifications of SC900841JVKR2

• Applications: PC's, PDA's
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 338-TBGA
• Input Voltage: 2.8 V to 4.4 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PWRMASK register.
through the SPI, reference
Table 65. Ramp Rate Control Registers (Freescale Defined)
Analog Integrated Circuit Device Data
Freescale Semiconductor
VYMX3GTONT
VDDQTONT
Figure 60
Turn on time of all buck regulators can be programmed
VCCTONT
VNNTONT
V21TONT
V15TONT
Reserved
Name
Power Supply Register Before Write
PWRMASK Register Settings
Example SPI Write to Power Supply
Power Supply Register After Write
shows an example of the operation of the
Bits
1:0
3:2
5:4
7:6
1:0
3:2
7:4
Turn On Time Settings for V21 Regulator
x0 = 320 μs
x1 = 160 μs
x2 = 80 μs
x3 = 40 μs
Turn On Time Settings for V15 Regulator
x0 = 200 μs
x1 = 100 μs
x2 = 50 μs
x3 = 25 μs
Reserved
Turn On Time Settings for VCC Regulator
x0 = 180 μs
x1 = 90 μs
x2 = 45 μs
x3 = 22 μs
Turn On Time Settings for VNN Regulator
x0 = 180 μs
x1 = 90 μs
x2 = 45 μs
x3 = 22 μs
Turn On Time Settings for VDDQ Regulator
x0 = 240 μs
x1 = 120 μs
x2 = 60 μs
x3 = 30 μs
Turn On Time Settings for VYMX3G Regulator
x0 = 160 μs
x1 = 80 μs
x2 = 40 μs
x3 = 20 μs
Table 65
Figure 60. PWRMASK Register Implementation Example
POWER SUPPLY PROGRAMMABLE RAMP RATE
FSLTONTCNTL2 (ADDR 0x1CB - R/W - Default Value: 0xAA)
FSLTONTCNTL1 (ADDR 0x1C8 - R/W - Default Value: 0xAA)
D7
1
1
1
1
D6
0
1
1
0
D5
1
1
1
1
Description
D4
0
1
1
0
D3
1
0
1
1
FUNCTIONAL DEVICE OPERATION
D2
0
0
1
1
D1
1
0
1
1
POWER SUPPLIES
D0
0
0
1
1
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