PI354X-00 Datasheet, PDF (8/39 Pages) –

PI354x-00
PI354x-00 Common Electrical Characteristics (Cont.)
Specifications apply for -40°C < T_J < 125°C, V_IN = 48V, EN = High, V_VDR = 5.1V +/- 2%, L1 = 340nH ^[1] unless other conditions are noted.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
High Threshold
Low Threshold
Threshold Hysteresis
Enable Pull-Up Voltage
Source Current
V_{EN_HI}
V_{EN_LO}
V_{EN_HYS}
V_{EN_PU}
I_{EN_SO}
Enable
0.9
1
1.1
V
0.7
0.8
0.9
V
100
200
300
mV
2
V
50
µA
Voltage Setpoint
External Loading
V_VDR
I_VDR
VDR
V_{IN_DC} > 10V
See Application Description for details
4.8
5.1
5.4
V
0
2
mA
Input UVLO Start Threshold
Input UVLO Stop Hysteresis
Input UVLO Response Time
Input OVLO Stop Threshold
Input OVLO Start Hysteresis
Input OVLO Response Time
Output Overvoltage Protection
V_{UVLO_START}
V_{UVLO_HYS}
Protection
V_OVLO
V_{OVLO_HYS}
t_f
V_OVP
Above set V_OUT
33.8
34.8
35.8
V
0.9
V
1.25
us
70
V
1.3
V
1.25
µs
20
%
Synchronization Frequency Range
SYNCI Threshold
∆f_SYNCI
V_SYNCI
Sync In (SYNCI)
Relative to set switching frequency ^[3]
50
110
%
V_VDR / 2
V
Sync Out (SYNCO)
SYNCO High
V_{SYNCO_HI} Source 1mA
V_VDR –0.5
V
SYNCO Low
SYNCO Rise Time
V_{SYNCO_LO}
t_{SYNCO_RT}
Sink 1mA
20pF load
0.5
V
10
ns
SYNCO Fall Time
t_{SYNCO_FT} 20pF load
10
ns
[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^® ZVS Switching Regulators
Page 8 of 39
Rev 1.6
03/2017
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