VIPER100ASP-E STMicroelectronics, VIPER100ASP-E Datasheet - Page 18

• Manufacturer Part Number: VIPER100ASP-E
• Description: IC SWIT PWM SMPS CM POWERSO10
• Manufacturer: STMicroelectronics
• Series: VIPER™r

Specifications of VIPER100ASP-E

• Output Isolation: Isolated
• Frequency Range: 90 ~ 200kHz
• Voltage - Input: 8 ~ 15 V
• Voltage - Output: 700V
• Power (watts): 82W
• Operating Temperature: 25°C ~ 125°C
• Package / Case: PowerSO-10 Exposed Bottom Pad
• Number Of Outputs: 1
• Output Voltage: 700 V
• Output Current: 3000 mA
• Mounting Style: SMD/SMT
• Switching Frequency: 90 KHz to 110 KHz
• Operating Supply Voltage: 0 V to 15 V
• Fall Time: 100 ns
• Rise Time: 50 ns
• Synchronous Pin: No
• Pwm Type: Current Mode PWM Controller
• Number Of Pwm Outputs: 1
• On/off Pin: No
• Adjustable Output: No
• Switching Freq: 90 TO 110kHz
• Operating Supply Voltage (max): 15V
• Mounting: Surface Mount
• Pin Count: 10
• Package Type: PowerSO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6790-5; VIPER100ASP-E

5 Operation Description
Figure 14. Oscillator
18/31
Ct
R t
O SC
C t
22nF
15nF
1,000
500
300
200
100
50
30
VDD
1
Ct = 1.5 nF
Ct = 4.7 nF
Ct = 2.7 nF
Ct = 10 nF
Forbidden area
2
Oscillator frequency vs Rt and Ct
3
Forbidden area
5
FC 00050
Rt (k )
40kHz
CLK
10
Ct(nF) =
For R
F
20
SW
FC00030
FC00030
Fsw(kHz)
t
=
> 1.2k and C
880
30
---------- -
R
2.3
t
C
t
50
⎛
1
Fsw
–
------------------- -
R
t
550
–
t
VIPer100A-E/ASP-E
150
40KHz
⎞
⎠