UPC1909GS Datasheet PDF - NEC
Part Number | UPC1909GS | |
Description | SWITCHING REGULATOR CONTROL IC | |
Manufacturers | NEC | |
Logo | ||
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Bipolar Analog Integrated Circuit
µPC1909
SWITCHING REGULATOR CONTROL IC
The µPC1909 is a switching regulator control IC ideal for primary side control of active-clamp typeNote DC/DC
converters. This IC has 2 outputs employing a totem-pole circuit with peak output current 1.2 A, and is capable of
directly driving a power MOS-FET. As a result, it has been possible to realize primary side control of an active-clamp
type converter on a single chip.
Note It is necessary to obtain license from Vicor Corporation before using the µPC1909 in an active-clamp type
circuit.
FEATURES
• 2 on-chip outputs; for Q and Q
• Capable of directly driving a power MOS-FET
• Drive supply voltage range: 7 V to 24 V
• On-chip remote control circuit
• On-chip pulse-by-pulse overcurrent protection circuit
• On-chip overvoltage latch circuit
ORDERING INFORMATION
Part Number
µPC1909CX
µPC1909GS
Package
16-pin plastic DIP (300 mils)
16-pin plastic SOP (300 mils)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G14309EJ1V0DS00 (1st edition)
Date Published July 1999 N CP(K)
Printed in Japan
©
1999
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µPC1909
Electrical Characteristics (Unless otherwise specified, TA = 25°C, VCC = 10 V, RT = 10 kΩ, fosc = 200 kHz)
Block
Total
Under-
Voltage
Lockout
Circuit
Reference
Voltage
Parameter
Standby Current
Circuit Current
Start-Up Threshold Voltage
Operating Voltage Hysteresis
Width
Output Voltage
Line Regulation
Oscillation
PWM
Comparator
Load Regulation
Output Voltage Temperature
Coefficient
Short Circuit Current
Oscillation Frequency
Frequency Line Regulation
Frequency Temperature
Coefficient
Input Bias Current
Output
Remote
Control
Overcurrent
Latch
Overvoltage
Latch
Low-level Threshold Voltage
High-level Threshold Voltage
Dead-time Temperature
Coeficient
Low-level Output Voltage
High-level Output Voltage
Rise Time
Fall Time
Input Voltage at Output ON
Input Voltage at Output OFF
Hysteresis Width
Overcurrent Threshold Voltage
Input Bias Current
Delay to Output
Overvoltage Threshold Voltage
Input Bias Current
OVL Reset Voltage
Delay to Output
Symbol
Conditions
ICC (SB)
VCC = 7 V
ICC Without load
VCC (L to H)
VH
MIN.
6
8
3
TYP.
0.1
12
9
4
MAX.
18
10
5
Unit
mA
mA
V
V
VREF
IREF = 0 A
REGIN
8 V ≤ VCC ≤ 15 V,
IREF = 0 A
REGL 1 mA ≤ IREF ≤ 4 mA
∆VREF/∆T −10°C ≤ TA ≤ +85°C,
IREF = 0 A
IO short
IREF = 0 A
fOSC
∆f/∆V 8 V ≤ VCC ≤ 15 V
∆f/∆T −10°C ≤ TA ≤ +85°C
4.7 4.9 5.1
V
1 10 mV
6 12 mV
400 (700) µV/°C
15 mA
180 200 220 kHz
1%
2 (5) %
IB (COMP1)
IB (COMP2)
VTH (L)
VTH (H)
∆DT/∆T
VOL
VOH
tr
tf
VIN (ON)
VIN (OFF)
VH
VTH (OC)
IB (OC)
td (OC)
VTH (OV)
IB (OV)
VR (OV)
td (OV)
VCOMP1 = VREF
VCOMP2 = VREF
−10°C ≤ TA ≤ +85°C,
VD = 0.46 VREF
ISINK = 3 mA
ISOURCE = 30 mA
RL = 15 Ω, CL = 2200 pF
RL = 15 Ω, CL = 2200 pF
VCC = 0 V
VOV = VREF
10
10
1.5
3.5
3
0.5
VCC − 1.6
60
40
2.4 2.6 2.8
2.2 2.4 2.6
0.1 0.2 0.3
190 210 230
200
150
2 2.4 2.8
4
2
750
µA
µA
V
V
%
V
V
ns
ns
V
V
V
mV
µA
ns
V
µA
V
ns
Remark Values in parentheses ( ) represent reference values.
Data Sheet G14309EJ1V0DS00
5
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