H1563P Datasheet, PDF (4/8 Pages) Hi-Sincerity Mocroelectronics – HIGH-EFFICIENCY DC/DC CONVERTER

HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HP200201
HS200207
Issued Date : 2000.10.01
Revised Date : 2002.07.12
Page No. : 4/8
Electrical Characteristics (Vcc=5V, Ta=25°C, unless otherwise specified)
Parameter
Oscillator
Charging Current
Discharge Current
Voltage Swing
Discharge to Charge Current Ratio
Current Limit Sense Voltage
Output Switch
Saturation Voltage, Emitter
Follower Connection
Saturation Voltage
DC Current Gain
Collector Off-State Current
Comparator
Threshold Voltage
Threshold Voltage Line Regulation
Input Bias Current
Supply Current
Test Condition
5V≤VCC≤40V
5V≤VCC≤40V
Pin3
VIS =VCC
IChg=Idischg
Symbol Min. Typ. Max. Unit
Ichg
24 35 42 uA
Idischg 140 220 260 uA
VOSC
- 0.6 - V
IDischg/Ichg -
6
-
VCC-VIS 250 300 350 mV
ISE=1A, VBST=VSC=VCC
ISC=1A, IBST=50mA
(Forced β ≈ 20)
ISC=1A, VCE=5V
VCE=30V
VCE(Sat)
VCE(Sat)
hFE
ICC(Off)
-
1 1.3 V
- 0.4 0.7 V
35 120 -
- 10 - nA
Ta=25°C
0°C≤Ta≤70°C
3V≤VCC≤40V
VIN=0V
VIS=VCC, VPin5>VFB
5V≤VCC≤40V, CT=1nF
Pin2=Gnd
Remaining pins open
VFB
REGLine
IIB
1.227 1.25 1.273 V
1.21 - 1.29 V
-
3 6 mV
- 20 400 nA
ICC
- 1.6 3 mA
Application Information
Design Formula Table
Calculation
Step-Down
Step-Up
ton / toff
Vout+VF / (Vin(min) -Vsat-Vout)
Vout+VF-Vin(min) / (Vin(min)-Vsat)
(ton+toff) max
CT
IC(switch)
RS
1 / Fmin
4*10^-5ton
2*Iout(max)
0.3 / IC(switch)
1 / Fmin
4*10^-5ton
2*Iout(max)*(ton+toff / toff)
0.3 / IC(switch)
L(min)
((Vin(min)-Vsat-Vout) / IC(switch))*ton(max)
((Vin(min)-Vsat) / IC(switch))*ton(max)
CO
IC(switch)*(ton+toff) / 8VRipple(P-P)
Iout*ton / VRipple(P-P)
Vsat: Saturation voltage of the output switch.
VF: Forward voltage of the ringback rectifier.
The following power supply characteristics must be chosen:
Vin: Nominal input voltage.
Vout: Desired output voltage. |Vout|=1.25*(1+RB/RA)
Iout: Desired output current
Fmin: Minimum desired switching frequency at selected values for Vin and Iout.
VRipple(P-P): Desired peak to peak output ripple voltage in practice, the calculated value will need to be increased due
to the capacitor equivalent series resistance and board layout. The ripple voltage should be kept to a low
value since it will directly effect the line and load regulation.
H1563P / H1563S
HSMC Product Specification