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STMICROELECTRONICS UC2844BD1
PWM CONTROLLER, -25 TO 85DEG C
- Manufacturer:
- STMICROELECTRONICS STMICROELECTRONICS
- Manufacturer Part No:
- UC2844BD1
- Order Code:
- 3367209
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- Product Range
- -
- Technical Datasheet:
- UC2844BD1 Datasheet
- ECAD / MCAD
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Product Overview
UC2844BD1 is a high-performance current mode PWM controller. This control IC provides the necessary features to implement offline 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 a start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to ensure latched operation, a PWM comparator that 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 offstate. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges.
- Trimmed oscillator for precise frequency control
- Oscillator frequency guaranteed at 250KHz
- Current mode operation to 500KHz
- Automatic feed-forward compensation, low start-up and operating current
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with undervoltage lockout
- High current totem pole output
- Undervoltage lockout with hysteresis
- SO8 package, -40 to 150°C junction operating temperature
- Supply voltage (low impedance source) is 30V, ±1A output current
Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Product Information
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- Single Ended Controller
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- 1Channels
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- Current Mode Control
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- -
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- SOIC
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- 8Pins
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- Surface Mount
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- 52kHz
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- -
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- -
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- 0%
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- 50%
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- Boost, Flyback
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- -25°C
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- 85°C
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- -
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- -
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- MSL 1 - Unlimited
Technical Documents (2)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 10/13/25
1,955 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥243.17
(¥267.49 Inc. JCT)
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| Quantity | Price (Incl JCT) |
|---|---|
| 1+ | ¥243.17 (¥267.49) |
| 10+ | ¥132.54 (¥145.79) |
| 100+ | ¥92.02 (¥101.22) |
| 500+ | ¥82.56 (¥90.82) |
| 1000+ | ¥74.90 (¥82.39) |
| 2500+ | ¥67.70 (¥74.47) |
| 5000+ | ¥58.09 (¥63.90) |
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