PI3545-00-LGIZ Datasheet, PDF (17/37 Pages) Vicor Corporation – 36 Vin to 60 Vin Cool-Power ZVS Buck Regulator & LED Driver

PI354x-00
PI3545-00 (5.0 V_OUT) Electrical Characteristics
Specifications apply for -40°C <T_J < 125°C, V_IN = 48 V, V_VDR = 5.1 V +/- 2%, L1 = 420 nH ^[1] unless other conditions are noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
SYNCO High
SYNCO Low
SYNCO Rise Time
SYNCO Fall Time
TRK Active Range (Nominal)
TRK Enable Threshold
TRK to EAIN Offset
Charge Current (Soft – Start)
Discharge Current (Fault)
Soft-Start Time
Error Amplifier Trans-Conductance
PSM Skip Threshold
Error Amplifier Output Impedance
Internal Compensation Capacitor
Internal Compensation Resistor
High Threshold
Low Threshold
Threshold Hysteresis
Enable Pull-Up Voltage
(floating, no fault)
Enable Pull-Down Voltage
(floating, faulted)
Source Current
Sink Current
V_{SYNCO_HI}
V_{SYNCO_LO}
t_{SYNCO_RT}
t_{SYNCO_FT}
V_TRK
V_{TRK_OV}
V_{EIAN_OV}
I_TRK
I_{TRK_DIS}
t_SS
GMeao
PSM_SKIP
R_OUT
Chf
Rzi
V_{EN_HI}
V_{EN_LO}
V_{EN_HYS}
V_{EN_PU}
V_{EN_PD}
I_{EN_SO}
I_{EN_SK}
Sync Out (SYNCO)
Source 1 mA
Sink 1 mA
20 pF load
20 pF load
Soft Start, Tracking and Error Amplifier
V_TRK = 0.5 V
C_TRK = 0
[2]
[2]
[2]
[2]
[2]
Enable
V_VDR –0.5
V
0.5
V
10
ns
10
ns
0
1.08
V
20
40
60
mV
50
80
110
mV
-70
-50
-30
µA
10
mA
0.6
.94
1.6
mS
5.1
ms
0.8
V
1
MOhm
56
pf
6k
Ohm
0.9
1
1.1
V
0.7
0.8
0.9
V
100
200
300
mV
2
V
0
V
-50
µA
50
µA
[1] _{All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4”}
dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value.
[2] _{Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is}
determined by an external feedback divider ratio.
[3] _{Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal.}
[4] _{Refer to Output Ripple plots.}
[5] _{Refer to Load Current vs. Ambient Temperature curves.}
[6] _{Refer to Switching Frequency vs. Load current curves.}
Cool-Power^®
Page 17 of 37
Rev 1.3
02/2016
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