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UC3845BD1013TR
Switching Controllers 0.5mA Current Mode
ブランド: STMicroelectronics
製造元部品 #: UC3845BD1013TR
データシート: UC3845BD1013TR データシート (PDF)
パッケージ/ケース: 8-SOIC(0.154",3.90mmWidth)
RoHS ステータス:
在庫状況: 7741 個、新しいオリジナル
Warranty: 1 Year Ovaga Warranty - Find Out More
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*すべての価格は米ドルです
| 数量 | 単価 | 外部価格 |
|---|---|---|
| 5 | $0.272 | $1.360 |
| 50 | $0.218 | $10.900 |
| 150 | $0.194 | $29.100 |
| 500 | $0.165 | $82.500 |
| 2500 | $0.152 | $380.000 |
| 5000 | $0.144 | $720.000 |
In Stock:7741 PCS
UC3845BD1013TR 概要
The UC284xB family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off-state.Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC2842B and UC2844B have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresholds for the UC2843B and UC2845B are 8.5V and 7.9V. The UC2842B and UC2843B can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC2844B and UC2845B by the addition of an internal toggle flip flop which blanks the output off every other clock cycle.
特徴
- LOW START-UP AND OPERATING CURRENT
- UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
- INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT
- CURRENT LIMITING
- TRIMMED OSCILLATOR FOR PRECISE FREQUENCY CONTROL
- CURRENT MODE OPERATION TO 500kHz
- OSCILLATOR FREQUENCY GUARANTEED AT 250kHz
- LATCHING PWM FOR CYCLE-BY-CYCLE
- HIGH CURRENT TOTEM POLE OUTPUT
- AUTOMATIC FEED FORWARD COMPENSATION
仕様
| パラメータ | 価値 | パラメータ | 価値 |
|---|---|---|---|
| Product Status | Active | Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down | Output Configuration | Positive, Isolation Capable |
| Topology | Boost, Flyback | Number of Outputs | 1 |
| Output Phases | 1 | Voltage - Supply (Vcc/Vdd) | 7.6V ~ 30V |
| Frequency - Switching | Up to 500kHz | Duty Cycle (Max) | 48% |
| Synchronous Rectifier | No | Clock Sync | No |
| Control Features | Frequency Control | Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
配送
| 配送タイプ | 配送料 | リードタイム | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
 |
フェデックス | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
 |
登録された航空便 | $20.00-$40.00 (0.50 KG) | 2-5 日々 |
処理時間：送料は地域や国によって異なります。
支払い
| 支払条件 | ハンドフィー | |
|---|---|---|
 |
電信送金 | 銀行手数料 US$30.00 を請求します。 |
 |
ペイパル | 4.0％のサービス料がかかります。 |
 |
クレジットカード | 3.5％のサービス料がかかります。 |
 |
ウエスタンユニオン | charge US.00 banking fee. |
 |
送金サービス | 銀行手数料は 0.00 米ドルかかります。 |
保証
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2.受け取った商品の一部が完璧な品質ではない場合、当社は責任を持って返金または交換を手配します。 ただし、商品は元の状態のままでなければなりません。
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パーツポイント
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The UC3845BD1013TR is a PWM controller chip used in power supply applications. It regulates the output voltage by adjusting the duty cycle of a switching transistor. This chip is commonly utilized in DC-DC converters, battery chargers, and motor control circuits due to its reliability and efficiency.
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Equivalent
The equivalent products of UC3845BD1013TR chip are UC3845B, UC3845BD1, UC3845BD1013TR/IQ, and UC3845BD1013TRT. These chips are all part of the UC3845B family of current-mode PWM controllers with integrated high-voltage startup circuits. -
Features
1. Current mode PWM controller 2. High output switching frequency (500 kHz) 3. Programmable soft-start function 4. Integrated high voltage startup circuit 5. Error amplifier with precision reference 6. Under-voltage lockout protection 7. Over-current protection 8. Adjustable dead-time control 9. Available in SOIC-14 package. -
Pinout
UC3845BD1013TR is a Pulse Width Modulation (PWM) controller with 8 pins. It is used for controlling power supply applications in various electronic devices. The pin functions are: 1. VCC 2. FB 3. COMP 4. INV 5. RT/CT 6. GND 7. OUT 8. SYNC. -
Manufacturer
The manufacturer of UC3845BD1013TR is STMicroelectronics. It is a multinational electronics and semiconductor company headquartered in Geneva, Switzerland. STMicroelectronics is known for designing and manufacturing a wide range of products including microcontrollers, power systems, sensors, and analog integrated circuits for various industries such as automotive, industrial, and telecommunications. -
Application Field
UC3845BD1013TR is commonly used in power management applications such as offline flyback and forward converters, power factor correction, and voltage regulator modules. It is also used in applications requiring high efficiency and reliability, such as industrial power supplies, LED drivers, and battery chargers. -
Package
The UC3845BD1013TR chip is available in a SOP-8 form factor with a size of 5.85mm x 4.4mm. It is commonly housed in a surface-mount package.
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