V7815-500-SMT CUI Inc, V7815-500-SMT Datasheet - Page 5

• Manufacturer Part Number: V7815-500-SMT
• Description: CONVERT DC/DC REG 15V 500MA SMD
• Manufacturer: CUI Inc
• Series: V-Infinity V78XX-500-SMTr
• Type: Linear Regulator Drop-Inr

Specifications of V7815-500-SMT

• Output: 15V
• Number Of Outputs: 1
• Power (watts): 7.5W
• Mounting Type: Surface Mount
• Voltage - Input: 17 ~ 28V
• Package / Case: 10-DIP Module (6 Leads)
• 1st Output: 15 VDC @ 500mA
• Size / Dimension: 0.60" L x 0.34" W x 0.28" H (15.2mm x 8.6mm x 7.1mm)
• Power (watts) - Rated: 7.5W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 96%
• Approvals: UL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 102-1960-2

PART NUMBER: V78XX-500-SMT
SHUTDOWN CONTROL
20050 SW 112
The ON/OFF pin provides several features for adjusting and sequencing the power supply, a user has the flexibility of using the ON/OFF pin as:
1) A digital on/off control by pulling down the ON/OFF pin with an open-drain transistor.
2) Line UVLO. If desired to achieve a UVLO voltage, a resistor divider from Vin to ON/OFF to GND can be used to disable the converter until
3) Power supply sequencing. By connecting a small capacitor from ON/OFF to GND, the 2 A current source and 1.25V threshold can provide
a higher input voltage is achieved. For example, it is not useful for a converter with 12V output to start up with a 12V input , as the
output cannot each regulation. To enable the converter when the input voltage reaches 14V, a 51kΩ/5kΩ voltage divider from Vin to GND
can be connected to the ON/OFF pin. Both the precision 1.25V threshold and 150mV hysteresis are multiplied by the resistor ratio,
providing a proportional 12% hysteresis for any startup threshold. So, the turn off threshold would be between 12.3V to 15.7V.
a stable and predictable delay between startup of multiple power supplies. For example, a startup delay of roughly 64mS is provided using
100nF, and roughly 136mS by using 200nF.
GND
Vin
Vin
GND
C1
C1
th
100nF
2 00 nF
Ave. Tualatin, Oregon 97062
1
1
C5
C5
10
V 7 8 X X - 5 0 0 - S M T
10
V 7 8 X X - 5 0 0 - S M T
7,9
7,9
GND
Vin
6
C1
6
5
470pF
5
51 KΩ
5 KΩ
4 70 pF
+Vout
+Vo ut
100 F
1 00 F
1
10
phone
phone [phone] fax
V 7 8 X X - 5 0 0 - S M T
DESCRIPTION: DC switching regulator, non-isolated
7,9
ON/OFF
6
5
CH2: Vo
Delay time: 64mS
470pF
CH1: Von/off
CH1: Von/off
Delay time: 136mS
CH2: Vo
+Vout
100 F
fax [phone]
rev.
page
date
04/2009
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