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參數(shù)資料
| 型號： | CS5651GN16 |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 162K |
| 代理商： | CS5651GN16 |
1
Features
+
-
+
-
VREF
SYNC
Oscillator
Error
Amp 1
Error
Amp 2
Latching
PWM 2
Latching
PWM 1
VREF
Undervoltage
Lockout
5.0V Ref
VCC
Undervoltage
Lockout
VCC
VFB
1
COMP1
ENABLE2
VFB
2
COMP2
CT
RT
Gnd
Pwr Gnd
Sense2
VOUT
2
Sense1
VOUT
1
s
Oscillator has Precise
Duty Cycle
Limit and Frequency
Control
s
500kHz Current Mode
Operation
s
Automatic Feed Forward
Compensation
s
Separate Latching PWMs
for Cycle-By-Cycle
Current Limiting
s
Internally Trimmed
Reference with
Undervoltage Lockout
s
Switchable Second
Output
s
Two High Current Totem
Pole Outputs
s
Input Undervoltage
Lockout with Hysteresis
Package Options
16L PDIP & SO Wide
CS5651
High Performance Dual Channel
Current Mode Controller with ENABLE
1
SYNC
2
3
4
5
6
7
8
CT
RT
VFB
1
COMP1
SENSE1
VOUT
1
Gnd
16
15
14
13
12
11
10
9
VCC
VREF
ENABLE2
VFB
2
COMP2
Sense2
VOUT
2
Pwr Gnd
CS5651
Description
The CS5651 is a high performance,
fixed frequency, dual current mode
controller specifically designed for
Off-Line and DC to DC converter
applications. It offers the designer a
cost effective solution with minimal
external components. This integrat-
ed circuit features a unique oscilla-
tor for precise duty cycle limit and
frequency control, a temperature
compensated reference, two high
gain error amplifiers, two current
sensing comparators, and two high
current totem pole outputs ideally
suited for driving power MOSFETs.
One of the outputs, VOUT2 is switch-
able via the ENABLE2 pin.
Also included are protective fea-
tures consisting of input and refer-
ence undervoltage lockouts, each
with hysteresis; cycle-by-cycle cur-
rent limiting; and a latch for single
pulse metering of each output.
The CS5651 is pin compatible with
the MC34065H.
Block Diagram
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
A
Company
Rev. 6/28/99
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