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UPC1934 の電気的特性と機能

UPC1934のメーカーはNECです、この部品の機能は「DC-DC CONVERTER CONTROL IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 UPC1934
部品説明 DC-DC CONVERTER CONTROL IC
メーカ NEC
ロゴ NEC ロゴ 




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UPC1934 Datasheet, UPC1934 PDF,ピン配置, 機能
DATA SHEET
BiCMOS INTEGRATED CIRCUIT
µ PC1934
DC-DC CONVERTER CONTROL IC
DESCRIPTION
The µ PC1934 is an IC that controls a low-voltage input DC-DC converter. This IC is suitable for an operation with 3-V,
3.3-V input or a lithium ion secondary battery input, because the minimum operation supply voltage is 2.5 V. Because of
its wide operating voltage range, it can also be used to control DC-DC converters that use an AC adapter for input.
FEATURES
Low supply voltage: 2.5 V (MIN.)
Operating voltage range: 2.5 to 20 V (breakdown voltage: 30 V)
Timer latch circuit for short-circuit protection.
Ceramic capacitor with low capacitance (0.1 µ F) can be used for short-circuit protection.
Open drain outputs (Each of the outputs can be used to control a step-down converter, a step-up converter and an
inverted converter.)
Can control two output channels.
ORDERING INFORMATION
Part Number
Package
µ PC1934GR-1JG 16-pin plastic SSOP (5.72 mm (225))
µ PC1934GR-PJG 16-pin plastic TSSOP (5.72 mm (225))
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. G13567EJ3V0DS00 (3rd edition)
Date Published April 2000 NS CP (K)
Printed in Japan
The mark 5 shows major revised points.
1998

1 Page





UPC1934 pdf, ピン配列
µ PC1934
PIN CONFIGURATION (Top View)
16-pin plastic SSOP (5.72 mm (225))
µ PC1934GR-1JG
16-pin plastic TSSOP (5.72 mm (225))
µ PC1934GR-PJG
CT 1 16 VREF
RT 2 15 DLY
IN1 3 14 IN2
II1 4 13 II2
FB1 5 12 FB2
DTC1 6 11 DTC2
OUT1 7 10 OUT2
GND
8
9
VCC
PIN FUNCTIONS
Pin No.
1
2
3
4
5
6
Symbol
CT
RT
IN1
II1
FB1
DTC1
Function
Frequency setting capacitor connection
Frequency setting resistor connection
Channel 1 error amplifier non-inverted
input
Channel 1 error amplifier inverted input
Channel 1 error amplifier output
Channel 1 dead time setting
7 OUT1 Channel 1 open drain output
8
GND
Ground
Pin No.
9
10
11
Symbol
VCC
OUT2
DTC2
Function
Power supply
Channel 2 open drain output
Channel 2 dead time setting
12 FB2 Channel 2 error amplifier output
13 II2
Channel 2 error amplifier inverted input
14 IN2
Channel 2 error amplifier non-inverted
input
15 DLY Delay capacitor connection of short-
circuit protection
16 VREF Reference voltage output
Data Sheet G13567EJ3V0DS00
3


3Pages


UPC1934 電子部品, 半導体
µ PC1934
Electrical Characteristics (unless otherwise specified, TA = 25 °C, VCC = 3 V, fOSC = 100 kHz)
Block
Under
voltage
Lock-out
section
Reference
Voltage
section
Oscillation
section
Parameter
Start-up voltage
Operation stop voltage
Hysteresis voltage
Reset voltage (timer latch)
Reference voltage
Line regulation
Load regulation
Temperature coefficient
fOSC setting accuracy
fOSC total stability
Dead time
control
section
Input bias current
Low-level threshold voltage
High-level threshold voltage
Error
Input offset voltage
Amplifier
section
Input offset current
Input bias current
Common mode input voltage range
Open loop gain
Unity gain
Maximum output voltage (+)
Maximum output voltage ()
Output sink current
Output source current
Output
Drain cutoff current
section
Output ON voltage
Rise time
Fall time
Short-circuit Input sense voltage
Protection
section
UV sense voltage
Source current on short-circuiting
Delay time
Overall
Circuit operation current
Symbol
Conditions
VCC (L-H)
IREF = 0.1 mA
VCC (H-L)
IREF = 0.1 mA
VH IREF = 0.1 mA
VCCR
IREF = 0.1 mA
VREF
IREF = 1 mA
REGIN
2.5 VVCC20 V
REGL
0.1 mAIREF1 mA
VREF/T 20 °CTA≤+85 °C, IREF = 0 A
fOSC
RT = 11 k, CT = 330 pF
fOSC
20 °CTA≤+85 °C,
2.5 VVCC20 V
IBD
VTH (L)
Duty = 100 %
VTH (H)
Duty = 0 %
VIO
IIO
IB
VIMC
Av VO = 0.3 V
funity
VOM+
VOM
VO = 0.3 V
IO = 45 µ A
IO = 45 µ A
IOsink
VFB = 0.5 V
IOsource
VFB = 1.6 V
ILEAK
VOL
tr
tf
VO = 30 V
RL = 150
RL = 150
RL = 150
VTH
VUV
IOUV
tDLY
CDLY = 0.1 µ F
ICC VCC = 3 V
MIN.
30
2.0
15
30
TYP.
1.57
1.5
70
1.0
2.1
2
2
0.5
MAX.
2.2
12.5
7.5
+15
+30
Unit
V
V
mV
V
V
mV
mV
%
%
%
0.4 1.0 µ A
1.2 V
1.6 V
10 +10 mV
100
+100 nA
100
+100 nA
0 0.4 V
70 80
dB
1.5 MHz
1.6 2
V
0.02 0.5
V
0.8 1.4
mA
70 45 µ A
100 µ A
0.2 0.6
V
50 ns
60 ns
0.5 0.63 0.75
V
0.6 0.8 0.95 V
1.0 1.6 2.5 µ A
50 ms
1.4 2.2 3.7 mA
Caution Connect a capacitor of 0.01 to 10 µ F to the VREF pin.
16
µ PC1934
8
CREF = 0.01 to 10 µF
6 Data Sheet G13567EJ3V0DS00

6 Page



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共有リンク

Link :


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UPC1933

DC-DC CONVERTER CONTROL IC

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UPC1934

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UPC1934GR-1JG

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