3BR4765JZ Datasheet – Off-Line SMPS Current Mode Controller
Off-Line SMPS Current Mode Controller with integrated 650V CoolMOS
3BR4765JZ overview
The 3BR4765JZ is an Off-Line SMPS Current Mode Controller with integrated 650V CoolMOS made by Infineon Technologies AG, supplied in a DIP 7 Pin package. The absolute maximum ratings table on this page lists the 13 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the 3BR4765JZ pinout and maximum ratings, with the full datasheet PDF to preview below or download.
ICE3BR4765JZ is derived from ICE3BR4765J in DIP-7 package. The CoolSET®-F3R jitter series (ICE3BRxx65J) is the latest version of CoolSET®-F3. It targets for the Off- Line battery adapters and low cost SMPS for lower power range such as application for DVD R/W, DVD Combi, Blue ray DVD player, set top box, etc. Besides inherited the outstanding performance of the CoolSET®-F3 in the BiCMOS technology, active burst mode, auto-restart protection, propagation delay compensation, etc., CoolSET®-F3R series has some new features such as built-in soft start time, built-in blanking window, built-in frequency jitter, soft gate driving, etc. In case a longer blanking time is needed for high load application, a simple addition of capacitor to BA pin can serve the purpose. Furthermore, an external auto-restart enable feature can provide extra protection when there is a need of immediate stop of power switching.
Datasheet
3BR4765JZ features
- 650V avalanche rugged CoolMOS® with built-in Startup Cell
- Active Burst Mode for lowest Standby Power
- Fast load jump response in Active Burst Mode
- 65kHz internally fixed switching frequency
- Auto Restart Protection Mode for Overload, Open Loop, VCC Undervoltage, Overtemperature & Overvoltage
- Built-in Soft Start
- Built-in blanking window with extendable blanking time for short duration high current
- External auto-restart enable pin
- Max Duty Cycle 75%
- Overall tolerance of Current Limiting < ±5%
- Internal PWM Leading Edge Blanking
- BiCMOS technology provide wide VCC range
- Built-in Frequency jitter and soft driving for low EMI
3BR4765JZ pinout
| Pin | Name | Description |
|---|---|---|
| 1 | BA | extended Blanking & Auto-restart |
| 2 | FB | Feed Back |
| 3 | CS | Current Sense/ 650V1) CoolMOS® Source |
| 4 | n.c. | not connected |
| 5 | Drain | 650V1) CoolMOS® Drain |
| 6 | n.c. | Not connected |
| 7 | VCC | Controller Supply Voltage |
| 8 | GND | Controller GrouND |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Switching drain current, pulse width tp limited by Tj=150°C | Is | Max 1.67 | A |
| Pulse drain current, pulse width tp limited by Tj=150°C | ID_Puls | Max 2.32 | A |
| Avalanche energy, repetitive tAR limited by max. Tj=150°C 1) | EAR | Max 0.01 | mJ |
| Avalanche current, repetitive tAR limited by max. Tj=150°C 1) | IAR | Max 0.5 | A |
| VCC Supply Voltage | VVCC | Min -0.3 / Max 27 | V |
| FB Voltage | VFB | Min -0.3 / Max 5.5 | V |
| BA Voltage | VBA | Min -0.3 / Max 5.5 | V |
| CS Voltage | VCS | Min -0.3 / Max 5.5 | V |
| Junction Temperature | Tj | Min -40 / Max 150 / Remarks Controller & CoolMOS® | °C |
| Storage Temperature | TS | Min -55 / Max 150 | °C |
| Thermal Resistance Junction -Ambient | RthJA | Max 96 | K/W |
| Soldering temperature, wavesoldering only allowed at leads | Tsold | Max 260 / Remarks 1.6mm (0.063in.) from case for 10s | °C |
| ESD Capability (incl. Drain Pin) | VESD | Max 2 / Remarks Human body model2) | kV |
3BR4765JZ applications
- LED Drivers
- Offline Converters
- Low Power Systems
- SMPS Controller
- Power Supplies
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