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EC9215 Datasheet(PDF) 4 Page - E-CMOS Corporation

Part # EC9215
Description  Step-up DC/DC Controller
PDF  15 Pages
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Manufacturer  E-CMOS [E-CMOS Corporation]
Direct Link  http://www.ecmos.com.tw/
Logo E-CMOS - E-CMOS Corporation

EC9215 Datasheet(HTML) 4 Page - E-CMOS Corporation

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Step-up DC/DC Controller
EC9215
E-CMOS Corp. (www.ecmos.com.tw)
Page 4 of 15
5J15N-Rev.F001
Electrical Characteristics
(VDD = 3.3V, TA = 25°C unless otherwise specified)
Parameters
Symbol
Test Condition
Min.
Typ.
Max.
Unit
ENTIRE DEVICE
Supply Voltage
VDD
2.5
‐
5.5
V
Supply Current
IDD
VDD=2.5V to 5.5V
‐
0.7
1
mA
Shutdown Current
ISD
CTL pin open or VDD
‐
0.1
1
µA
Maximum Duty Cycle
DMAX
RT =3.3K, CT =270pF
80
85
92
%
UNDER‐ VOLTAGE LOCKOUT PROTECTION
VDD Startup Threshold Voltage
VTH
‐
2.0
‐
2.4
V
Hysteresis voltage
VR
‐
‐
150
‐
mV
SOFT‐ START
Voltage at Soft‐ Start Completion
VSS
‐
0.7
0.8
0.9
V
Soft‐ Start Charge Current
ICS
VSCP =0V
‐ 0.7
‐ 1.0
‐ 1.5
µA
Voltage at Soft‐ Start Completion
VSS
‐
0.7
0.8
0.9
V
Soft‐ Start Charge Current
ICS
VSCP =0V
‐ 0.7
‐ 1.0
‐ 1.5
µA
SHORT CIRCUIT PROTECTION (SCP)
Threshold Voltage
VSCP
0.7
0.8
0.9
V
Charge Current
ISCP
VSCP =0V
‐ 0.7
‐ 1.0
‐ 1.5
µA
SAWTOOTH WAVEFORM OSCILLATOR (OSC)
Oscillator Frequency
FOSC
RT =3.3k, CT =270pF
500
600
700
kHz
Frequency Stability for Voltage
FDV
VDD=2.5V to 5.5V
‐
2
5
%
Frequency Stability for Temperature
FDT
TA=‐ 40°C to 85°C
‐
5
‐
%
ERROR AMPLIFIER
Reference Voltage
VREF
VFB=INV
0.490
0.5
0.510
V
VREF Stability
VDD= 2.5V to 5.5V
5
20
mV
VREF Variation with Temperature
TA=-40℃ to 85℃
1
%
Transconductance
gm
1000
1300
1600
uA/V
Input Bias Current
IB
INV=0V
1
uA
Output Voltage Range
VOH
1.6
1.8
V
VOL
0.01
V



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