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PRM48AH480T200A00 Datasheet(PDF) 10 Page - Vicor Corporation

Part # PRM48AH480T200A00
Description  PRM??Regulator
Download  44 Pages
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Manufacturer  VICOR [Vicor Corporation]
Direct Link  http://www.vicorpower.com
Logo VICOR - Vicor Corporation

PRM48AH480T200A00 Datasheet(HTML) 10 Page - Vicor Corporation

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- 10 -
PRM48AH480 X 200A00
Rev. 1.1
11/2012
SGND: SIGNAL GROUND
• All control signals must be referenced to this pin, with the exception of VC
• SGND is internally connected to -IN and -OUT
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Analog Input / Output
Any
Maximum Allowable
Current
ISGND
-100
100
mA
TRIM
• TRIM is used to select operating mode and trim the output voltage in Adaptive Loop operation
• Internal pullup to VCC_INT through10kΩ resistor
• When pulled below 0.45V during power up, Remote Sense / Slave operation is selected
• When allowed to pull up above 0.55 during power up, Adaptive Loop operation is selected
• Operating mode is latched during power up and cannot be changed unless input power is cycled
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Analog Input
Normal
Operation
Internally generated
VCC
VCC_INT
3.20
3.28
3.36
V
Internal Pullup
Resistance to VCC_INT
RTRIM_INT
0.5% tolerance resistor
9.83
10
10.18
kΩ
Mode Detect
Mode Detection Delay
tMODE_DETECT
From ENABLE high to mode detected, after VIN first
applied
100
140
200
µs 
Remote Sense Enable
Threshold
VRS_MODE_EN
Pull below this value during application of power to enable
Remote Sense / Slave operation
0.45
V
Remote Sense Disable
Threshold
VRS_MODE_DIS
Pull above this value during application of power to enable
Adaptive Loop operation
0.55
V
TRIM (ADAPTIVE LOOP OPERATION ONLY)
• Provides dynamic trim control over the PRM output voltage in Adaptive Loop operation
• Sampled prior to every start up to detect if trim is active or inactive
• Output voltage is equal to 20 times the voltage at the TRIM pin when applied TRIM voltage is within the active range
• Trim state is latched during normal operation and cannot be changed until start up is initiated
Signal Type
State
Attribute
Symbol
Conditions / Notes
Min
Typ
Max
Unit
Analog Input
Start up
Trim Enable Threshold
VTRIM_EN
Pull below this value during start up to enable trim control
3.10
V
Trim Disable Threshold
VTRIM_DIS
Pull above this value during start up to disable trim control
3.20
V
Minimum Trim Disable
Resistance
RTRIM_DIS_MIN
Minimum TRIM resistance required to disable trim
10
MΩ
Trim Capacitance
(External)
CTRIM_EXT
100
pF 
Trim Sample Delay
tENABLE_TRIM
From ENABLE high to TRIM sampled
100
140
200
µs 
Normal
Operation
TRIM Pin Analog Range
VTRIM_RANGE
See Figure 26
1.00
2.75
TRIM Gain
GTRIM
VOUT / VTRIM, VTRIM applied within active range
20
V/V
Trim Accuracy
%ACC_TRIM
Vout accuracy, exclusive of external resistor tolerance
0.5
2
%
VOUT referred trim
resolution
VOUT_RES
200
mV
Trim latency
tTRIM_LAT
60
120
240
s
Trim Bandwidth
BWTRIM
-3dB point
1.2
kHz


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