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YH09T40 40A DC-DC POL Converter
5V to 13.8V Input ? 0.6V to 3.63V Output
Data Sheet
Turn-On Delay Time
Parameter
1
POL is Enabled
Turn-On Delay Time 1
POL is Disabled
Rise Time 1
C OUT =0 μF, Resistive Load
Admissible Output Capacitance
V OUT ≤ 2.5V
Admissible Output Capacitance
V OUT ≥ 2.5V
Conditions/Description
ON/OFF pin is pulled high
From V IN =V IN MIN to V OUT =0.1*V OUT.SET
V IN =12V
From ON/OFF pin changing its state
from low to high until V OUT =0.1*V OUT.SET
From V OUT =0.1*V OUT.SET to
V OUT =0.9*V OUT.SET
I OUT =I OUT MAX , Resistive load,
ESR>2.5m ?
I OUT =I OUT MAX , Resistive load,
ESR>2.5m ?
Min
Nom
0.4
0.4
1.2
Max
1
1
2
5,000
2,200
Units
ms
ms
ms
μF
μF
__________________________
1
Total start-up time is the sum of the turn-on delay time and the rise time
4.3
Protection Specifications
Parameter
Conditions/Description
Min
Nom
Max
Units
Output Overcurrent Protection
Type
Auto-Restart
Inception Point
Output Short Circuit
Current (RMS value)
V OUT =2.5V, R OUT <0.01 ?
110
130
6
150
%I OUT
A
Output Overvoltage Protection
Type
Auto-Restart
Threshold
I OUT =I OUT MAX , room temperature
120
125
130
%V O.SET
Overtemperature Protection
Type
Auto-Restart
Turn Off Threshold
Turn On Threshold
Temperature is increasing
Temperature is decreasing after the POL was
shut down by OTP
125
115
? C
? C
Power Good Signal (PwrGood pin)
Logic
Low Output Voltage
V OUT is inside the PG window
V OUT is outside the PG window
I SINK =4mA
High
Low
0.5
N/A
VDC
High Output Voltage
ZD-02095 Rev. 1.1, 18-Jun-10
External pull-up
www.power-one.com
2.4
Page 4 of 13
5.25
VDC
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