TS3843B, TS3843BCS, TS3843ID Selling Leads, Datasheet
MFG:ST8 Package Cooled:SOP-8 D/C:07+
TS3843B, TS3843BCS, TS3843ID Datasheet download
Part Number: TS3843B
MFG: ST8
Package Cooled: SOP-8
D/C: 07+
TS3843B, TS3843BCS, TS3843ID
- Table of contents:
Info of TS3843B
Info of TS3843BCS
Info of TS3843ID
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About TS3843B
PDF/DataSheet Download
Datasheet: TS3843B
File Size: 404126 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About TS3843BCS
PDF/DataSheet Download
Datasheet: TS3843BCS
File Size: 404126 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About TS300
PDF/DataSheet Download
Datasheet: TS300
File Size: 169854 KB
Manufacturer: TRSYS [TRSYS]
Download : Click here to Download
TS3843B General Description
The TS3842B and TS3843B series are high performance fixed frequency current mode controllers. This is specifically designed for Off-Line and DC-to-DC converter applications offering the designer a cost effective solution with minimal external components. This integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, ogrammable output deadtime, and a latch for single pulse metering.
This device is available in 8-pin dual-in-line plastic packages as well as the 8-pin plastic surface mount (SOP-8). The SOP-8 package has separate power and ground pins for the totem pole output stage.
The TS3842B has UVLO thresholds of 16V (on) and 10V (off), ideally suited for off-line converters.
TS3843B Maximum Ratings
| RATING |
SYMBOL |
VALUE |
UNIT |
| Total Power Supply and Zener Current |
(ICC+IZ) |
30 |
mA |
| Output Current Source or Sink (Note 1) |
IO |
1.0 |
A |
| Output Energy (Capacitive Load per Cycle) |
W |
5.0 |
J |
| Current Sense and Voltage Feedback Inputs |
Vin |
-0.3 to +5.5 |
V |
| Error Amp Output Sink Current |
IO |
10 |
mA |
| Power Dissipation and Thermal Characteristics Plastic DIP Maximum Power Dissipation @ TA=25 Thermal Resistance Junction to Air Plastic SOP Maximum Power Dissipation @ TA=25 Thermal Resistance Junction to Air |
PD RJA PD RJA |
862 145 1.25 100 |
mW /W W /W |
| Operating Junction Temperature |
TJ |
0 to +150 |
|
| Operating Ambient Temperature |
TA |
-20 to +85 |
|
| Storage Temperature Range |
Tstg |
-25 to +150 |
TS3843B Features
·General Description TS3842B/3843B
·High Performance Current Mode Controller
·Trimmed Oscillator Discharge Current for
·Precise Duty Cycle Control
·Current Mode Operation to 500KHz
·Automatic Feed Forward Compensation
·Latching PWM for Cycle-By-Cycle Current Limiting
·Internally Trimmed Reference with Undervoltage Lockout
·High Current Totem Pole Output
·Undervoltage Lockout with Hystersis
·Low Start-Up and Operating Current
·High Performance Current Mode Controller
·Trimmed Oscillator Discharge Current for
·Precise Duty Cycle Control
·Current Mode Operation to 500KHz
·Automatic Feed Forward Compensation
·Latching PWM for Cycle-By-Cycle Current Limiting
·Internally Trimmed Reference with Undervoltage Lockout
·High Current Totem Pole Output
·Undervoltage Lockout with Hystersis
·Low Start-Up and Operating Current
TS3843B Typical Application
·Designed for Off-Line and DC-to-DC converter applications.
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