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参数资料
| 型号： | TC33025VOETR |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 1/18页 |
| 文件大小： | 416K |
| 代理商： | TC33025VOETR |
High Speed Double-Ended PWM Controller
GENERAL DESCRIPTION
The TC33025 is a high speed, fixed frequency, double–
ended pulse width modulator controller optimized for high
frequency operation. They are specifically designed for Off-
Line and DC-to-DC converter applications offering the de-
signer a cost effective solution with minimal external compo-
nents. This integrated circuit features an oscillator, a tem-
perature compensated reference, a wide bandwidth error
amplifier, a high speed current sensing comparator, steering
flip–flop, and dual high current totem pole outputs ideally
suited for driving power MOSFETs.
Also included are protective features consisting of input
and reference undervoltage lockouts each with hysteresis,
cycle-by-cycle current limiting, and a latch for single pulse
metering.
The flexibility of this device allows it to be easily config-
ured for either current mode or voltage mode control.
FEATURES
s
50nsec Propagation Delay to Outputs
s
Dual High Current Totem Pole Outputs
s
Wide Bandwidth Error Amplifier
s
Fully–Latched Logic with Double Pulse
Suppression
s
Latching PWM for Cycle-By-Cycle Current
Limiting
s
Soft–Start Control with Latched Overcurrent
Reset
s
Input Undervoltage Lockout with Hysteresis
s
Low Start–Up Current (500
A Typ)
s
Internally Trimmed Reference with Undervoltage
Lockout
s
90% Maximum Duty Cycle (Externally Adjustable)
s
Precision Trimmed Oscillator
s
Voltage or Current Mode Operation to 1.0MHz
s
Functionally Similar to the UC3825
ORDERING INFORMATION
Part
Temperature
Number
Package
Range
TC33025VPE
16-Pin PDIP
–40C to +80
°C
TC33025VOE
16-Pin SOIC
–40C to +80
°C
TC33025
TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.
TC33025-1 5/25/00
16-Pin SOIC/PDIP
PIN CONFIGURATIONS
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
16
15
14
13
VREF
VCC
Output A
Output B
5
6
7
12
11
10
9
8
Error Amp Output
Clock
Ramp
Soft-Start
RT
VC
CT
Error Amp
Noninverting Output
Error Amp
Inverting Output
Ground
Current Limit/
Shutdown
Power Ground
TC33025
ERROR
AMP
16
VREF
VCC
VC
OUTPUT B
OUTPUT A
POWER
GROUND
CURRENT
LIMIT
SHUTDOWN
RT
CT
RAMP
ERROR AMP
OUTPUT
NONINVERTING
INPUT
NONINVERTING
INPUT
SOFT-START
CLOCK
15
13
14
11
12
9
4
5
6
7
3
2
1
8
LATCHING
PWM
AND
STEERING
FLIP
FLOP
GROUND
10
UVLO
5.1V
REFERENCE
This device contains 227 active transistors.
OSCILLATOR
+
–
相关PDF资料 |
PDF描述 |
|---|---|
| TC33163EOETR | 3.4 A SWITCHING CONTROLLER, 55 kHz SWITCHING FREQ-MAX, PDSO16 |
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| TC3400VOART | 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO8 |
| TC3400VPA | 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDIP8 |
| TC3400VOATR | 2-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC33025VPE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TC33063AVOA | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Microchip Technology Inc 功能描述: |
| TC33063AVOATR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| TC33063AVPA | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Microchip Technology Inc 功能描述: |
| TC33067EOE | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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