SI9145BQ-T1 Vishay, SI9145BQ-T1 Datasheet - Page 7

• Manufacturer Part Number: SI9145BQ-T1
• Description: IC, PWM CONTROLLER, 16-TSSOP
• Manufacturer: Vishay

Specifications of SI9145BQ-T1

• Primary Input Voltage: 7V
• No. Of Outputs: 1
• Output Voltage: 2.6V
• Output Current: 200mA
• No. Of Pins: 16
• Operating Temperature Range: -25°C To +85°C
• Power Dissipation Pd: 925mW
• Termination Type: SMD
• Number Of Outputs: Single Output
• Topology: Boost, Buck, Flyback, Forward
• Switching Frequency: 2000 KHz
• Duty Cycle (max): 100 %
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Package / Case: TSSOP-16
• Mounting Style: SMD/SMT
• Synchronous Pin: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Document Number: 70021
S-40710—Rev. K, 19-Apr-04
TIMING WAVEFORMS
MODE SELECT
MODE SELECT
UVLO
UVLO
OUTPUT
OUTPUT
D
D
ENABLE
ENABLE
MAX
MAX
C
C
R
R
OSC
OSC
OSC
OSC
SET
/SS
SET
/SS
1.2 V
1.2 V
Figure 1.
Start-Up (UVLO)
Start-Up (UVLO)
Figure 2
>1.5 V
OFF
1.0 V
1.0 V
.
ON
Si9145 Timing Diagram (MODE SELECT = High)
Si9145 Timing Diagram (MODE SELECT = Low)
ON
OFF
1.0 V
1.0 V
Normal (Duty Cycle Limit)
Normal (Duty Cycle Limit)
Set for 50% Max.
Vishay Siliconix
Standby
Standby
www.vishay.com
Si9145
7