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CM6800 データシート PDF ( 特性, スペック, ピン接続図 )

部品番号 CM6800
部品説明 LOW START UP CURRENT PFC/PWM CONTROLLER COMBO
メーカ Champion Microelectronic
ロゴ Champion Microelectronic ロゴ 
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CM6800 Datasheet, CM6800 PDF,ピン配置, 機能
CM6800
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
GENERAL DESCRIPTION
FEATURES
The CM6800 is a controller for power factor corrected,
switched mode power suppliers. Power Factor Correction
(PFC) allows the use of smaller, lower cost bulk
capacitors, reduces power line loading and stress on the
switching FETs, and results in a power supply that fully
compiles with IEC-1000-3-2 specifications. Intended as a
BiCMOS version of the industry-standard ML4824,
CM6800 includes circuits for the implementation of leading
edge, average current, “boost” type power factor
correction and a trailing edge, pulse width modulator
(PWM). Gate-driver with 1A capabilities minimizes the
need for external driver circuits. Low power requirements
improve efficiency and reduce component costs.
An over-voltage comparator shuts down the PFC section
in the event of a sudden decrease in load. The PFC
section also includes peak current limiting and input
voltage brownout protection. The PWM section can be
operated in current or voltage mode, at up to 250kHz, and
includes an accurate 50% duty cycle limit to prevent
transformer saturation.
CM6800 includes an additional folded-back current limit
for PWM section to provide short circuit protection
function.
‹ Patent Number #5,565,761, #5,747,977, #5,742,151,
#5,804,950, #5,798,635
‹ Pin to pin compatible with ML4800 and FAN4800
‹ Additional folded-back current limit for PWM section.
‹ 23V Bi-CMOS process
‹ VIN OK turn on PWM at 2.5V instead of 1.5V
‹ Internally synchronized leading edge PFC and trailing
edge PWM in one IC
‹ Slew rate enhanced transconductance error amplifier for
ultra-fast PFC response
‹ Low start-up current (100 μ A typ.)
‹ Low operating current (3.0mA type.)
‹ Low total harmonic distortion, high PF
‹ Reduces ripple current in the storage capacitor between
the PFC and PWM sections
‹ Average current, continuous or discontinuous boost
leading edge PFC
‹ VCC OVP Comparator, Low Power Detect Comparator
‹ PWM configurable for current mode or voltage mode
operation
‹ Current fed gain modulator for improved noise immunity
‹ Brown-out control, over-voltage protection, UVLO, and
soft start, and Reference OK
APPLICATIONS
‹ Desktop PC Power Supply
‹ Internet Server Power Supply
‹ IPC Power Supply
‹ UPS
‹ Battery Charger
‹ DC Motor Power Supply
‹ Monitor Power Supply
‹ Telecom System Power Supply
‹ Distributed Power
PIN CONFIGURATION
SOP-16 (S16) / PDIP-16 (P16)
Top View
1
IEAO
VEAO
16
2 IAC
VFB 15
3
ISENSE
VREF
14
4
VRMS
VCC
13
5
SS PFC OUT
12
6
VDC
PWM OUT
11
7
RAMP1
GND
10
8
RAMP2
DC ILIMIT
9
2008/10/23 Rev. 2.1
Champion Microelectronic Corporation
Page 1

1 Page



CM6800 pdf, ピン配列
CM6800
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
BLOCK DIAGRAM (CM6800)
16
VEAO
15 VFB
2.5V
2 IAC
VRMS
4
3 ISENSE
7 RAMP1
GMv
-
.
+
0.3V
GAIN
MODULATOR
1
IEAO
LOW POWER
DETECT
3.5K
GMi
+
.
-
VCC
17.9V
0.5V
PFC CMP
+
-
3.5K
VCC OVP
+
- 2.75V
TRI-FAULT
PFC OVP
+
.
-
-1V +
-
PFC ILIMIT
OSCILLATOR
8 RAMP2
350
SW SPST
6
VDC
Vcc
20uA350
1.5V
5 SS
SW SPST
VREF
9 DC ILIMIT
SW SPST
PWM
CMP
SS CMP
SW SPST
DUTY CYCLE
LIMIT
PWM
DUTY
VFB
2.45V
-
.
+
VIN OK
1.0V
DC ILIMIT
QS
R
VCC
13
VCC
7.5V
REFERENCE
SQ
RQ
SQ
RQ
VREF
14
POWER
FACTOR
CORRECTOR
MPPFC
VCC
PFC OUT
12
MNPFC
GND
CLK
PFCOUT
PWMOUT
SQ
RQ
UVLO
VCC
MPPWM
PWM OUT
11
MNPWM
GND
PULSE
WIDTH
MODULATOR
GND
10
ORDERING INFORMATION
Part Number
CM6800GIP
CM6800GIS
CM6800XIP*
CM6800XIS*
*Note: G : Suffix for Pb Free Product
X : Suffix for Halogen Free Product
Temperature Range
-40to 125
-40to 125
-40to 125
-40to 125
Package
16-Pin PDIP (P16)
16-Pin Wide SOP (S16)
16-Pin PDIP (P16)
16-Pin Wide SOP (S16)
2008/10/23 Rev. 2.1
Champion Microelectronic Corporation
Page 3


3Pages


CM6800 電子部品, 半導体
CM6800
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, RT = 30.16k, CT =1000pF, TA=Operating Temperature Range (Note 1)
Symbol
Parameter
Test Conditions
Min.
CM6800
Typ.
Oscillator
Initial Accuracy
TA = 25
60
Voltage Stability
11V < VCC < 16.5V
1
Temperature Stability
2
Total Variation
Line, Temp
52
Ramp Valley to Peak Voltage
2.5
PFC Dead Time (Note 4)
360
CT Discharge Current
VRAMP2 = 0V, VRAMP1 = 2.5V
Reference
6.5
Output Voltage
TA = 25, I(VREF) = 1mA
7.4 7.5
Line Regulation
Load Regulation
11V < VCC < 16.5V
0mA < I(VREF) < 7mA; TA = 0~70
0mA < I(VREF) < 5mA; TA = -40~85
10
10
10
Temperature Stability
0.4
Total Variation
Line, Load, Temp
7.35
Long Term Stability
TJ = 125, 1000HRs
5
PFC
Minimum Duty Cycle
VIEAO > 4.0V
Maximum Duty Cycle
Output Low Rdson
VIEAO < 1.2V
IOUT = -20mA at room temp
IOUT = -100mA at room temp
92 95
Output High Rdson
IOUT = 10mA, VCC = 9V at room temp
IOUT = 20mA at room temp
IOUT = 100mA at room temp
0.4
15
15
Rise/Fall Time (Note 4)
CL = 1000pF
PWM
50
Duty Cycle Range
0-43
0-47
Output Low Rdson
IOUT = -20mA at room temp
IOUT = -100mA at room temp
IOUT = 10mA, VCC = 9V
0.4
Output High Rdson
Rise/Fall Time (Note 4)
IOUT = 20mA at room temp
IOUT = 100mA at room temp
CL = 1000pF
15
15
50
PWM Comparator Level Shift
1.4 1.55
Supply
Start-Up Current
VCC = 12V, CL = 0 at room temp
100
Operating Current
Undervoltage Lockout Threshold
14V, CL = 0
CM6800
12.74
3.0
13
Undervoltage Lockout Hysteresis
CM6800
2.85 3.0
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
Note 2: Includes all bias currents to other circuits connected to the VFB pin.
Note 3: Gain = K x 5.375V; K = (ISENSE – IOFFSET) x [IAC (VEAO – 0.625)]-1; VEAOMAX = 6V
Note 4: Guaranteed by design, not 100% production test.
Max.
70
74
640
15
7.6
25
20
20
7.65
25
0
15
15
0.8
20
20
0-49
15
15
0.8
20
20
1.7
150
7.0
13.26
3.15
Unit
kHz
%
%
kHz
V
ns
mA
V
mV
mV
mV
%
V
mV
%
%
ohm
ohm
V
ohm
ohm
ns
%
ohm
ohm
V
ohm
ohm
ns
V
μA
mA
V
V
2008/10/23 Rev. 2.1
Champion Microelectronic Corporation
Page 6

6 Page





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