参数资料
| 型号： | SQ48S08060-NS00 |
| 厂商： | Power-One |
| 文件页数： | 7/64页 |
| 文件大小： | 0K |
| 描述： | DC/DC EIGHTH BRICK |
| 标准包装： | 175 |
| 系列： | * |
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SQ48 DC-DC Series Data Sheet
36-75 VDC Input; 1.0-12 VDC Output
V IN
Startup Information (using negative ON/OFF)
Scenario #1: Initial Startup From Bulk Supply
ON/OFF function enabled, converter started via application
of V IN . See Figure F.
Time Comments
t 0 ON/OFF pin is ON; system front end power is
toggled on, V IN to converter begins to rise.
t 1 V IN crosses Undervoltage Lockout protection
circuit threshold; converter enabled.
t 2 Converter begins to respond to turn-on
command (converter turn-on delay).
t 3 Converter V OUT reaches 100% of nominal value.
For this example, the total converter startup time (t 3 - t 1 ) is
typically 4 ms.
ON/OFF
STATE
V OUT
OFF
ON
t 0 t 1 t 2
t 3
t
Fig. F: Startup scenario #1.
Scenario #2: Initial Startup Using ON/OFF Pin
With V IN previously powered, converter started via
ON/OFF pin. See Figure G.
Time Comments
t 0 V INPUT at nominal value.
t 1 Arbitrary time when ON/OFF pin is enabled
(converter enabled).
t 2 End of converter turn-on delay.
t 3 Converter V OUT reaches 100% of nominal
value.
For this example, the total converter startup time (t 3 - t 1 ) is
typically 4 ms.
V IN
ON/OFF
STATE OFF
ON
V OUT
Scenario #3: Turn-off and Restart Using ON/OFF Pin
With V IN previously powered, converter is disabled and
then enabled via ON/OFF pin. See Figure H.
Time Comments
t 0 V IN and V OUT are at nominal values; ON/OFF pin
ON.
t 1 ON/OFF pin arbitrarily disabled; converter output
falls to zero; turn-on inhibit delay period (100 ms
typical) is initiated, and ON/OFF pin action is
internally inhibited.
t 2 ON/OFF pin is externally re-enabled.
If (t 2 - t 1 ) ≤ 100 ms , external action of
ON/OFF pin is locked out by startup inhibit
timer.
If (t 2 - t 1 ) > 100 ms , ON/OFF pin action is
internally enabled.
t 3 Turn-on inhibit delay period ends. If ON/OFF pin
is ON, converter begins turn-on; if off, converter
awaits ON/OFF pin ON signal; see Figure G.
t 4 End of converter turn-on delay.
t 5 Converter V OUT reaches 100% of nominal value.
For the condition, (t 2 - t 1 ) ≤ 100 ms , the total converter
startup time (t 5 - t 2 ) is typically 104 ms. For (t 2 - t 1 ) > 100
ms , startup will be typically 4 ms after release of ON/OFF
pin.
V IN
ON/OFF
STATE OFF
ON
V OUT
t 0
t 0 t 1 t 2 t 3
Fig. G: Startup scenario #2.
100 ms
t 1 t 2 t 3 t 4 t 5
Fig. H: Startup scenario #3.
t
t
Rev6 11-Apr-2011
Page 7 of 64
www.power-one.com
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| SQ48S08060-NS00A | 制造商:Power-One 功能描述: |
| SQ48S08060-NS00G | 功能描述:DC/DC转换器 RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| SQ48S08060-NS00GA | 制造商:Power-One 功能描述: |
| SQ48S08060-NS0SG | 制造商:Power-One 功能描述:MOD DC-DC 1-OUT 6V 8A 50W 8PIN QUARTER-BRICK - Bulk |
| SQ48S08060-PS00 | 功能描述:DC/DC EIGHTH BRICK RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:* 标准包装:5 系列:* |
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