MIC38HC42/3/4/5
Micrel, Inc.
Absolute Maximum Ratings
Zener Current (V ) ...................................................30mA
Operating Junction Temperature (T ) ....................... 150°C
Package Thermal Resistance
DD
J
Operation at ≥18V may require
special precautions (Note 6).
8-Pin Plastic DIP (θ ).......................................125°C/W
JA
8-Pin MM8™ (θ ).............................................250°C/W
Supply Voltage (V ), Note 6 .......................................20V
JA
DD
8-Pin SOIC (θ ) ...............................................170°C/W
JA
Switch Supply Voltage (V ) ..........................................20V
D
14-Pin Plastic DIP (θ ).......................................90°C/W
JA
Current Sense Voltage (V
) ..................... –0.3V to 5.5V
ISNS
14-Pin SOIC (θ ) .............................................145°C/W
JA
Feedback Voltage (V )................................ –0.3V to 5.5V
FB
Storage Temperature (T ) ....................... –65°C to +150°C
A
Output Current, 38HC42/3/4/5 (I
)..............................1A
OUT
Electrical Characteristics
VDD = 15V, Note 4; RT = 9.09kΩ; CT = 3.3nF; –40°C ≤ TA ≤ 85°C; unless noted
Parameter
Test Conditions
Min
Typ
Max
Units
Reference Section
Output Voltage
TA = 25°C, IO = 1mA
4.90
5.00
2
5.10
20
V
mV
mV
mV/°C
V
Line Regulation
Load Regulation
Temp. Stability
12V ≤ VDD ≤ 18V, IO = 5µA, Note 6
1 ≤ IO ≤ 20mA
1
25
Note 1
0.2
Total Output Variation
Output Noise Voltage
Long Term Stability
Output Short Circuit
Oscillator Section
Initial Accuracy
Line, Load, Temp., Note 1
10Hz ≤ f ≤ 10kHz, TA = 25°C, Note 1
TA = 125°C, 1000 hrs., Note 1
4.82
5.18
50
5
µV
25
mV
mA
–30
49
–80
–180
TA = 25°C, Note 5
52
0.2
55
kHz
%
Voltage Stability
Temp. Stability
12 ≤ VDD ≤ 18V, Note 6
TMIN ≤ TA ≤ TMAX, Note 1
1.0
0.04
%/°C
Clock Ramp
TA = 25°C, VRT/CT = 2V
7.7
7.2
8.4
8.4
9.0
9.5
mA
mA
Reset Current
TA = TMIN to TMAX
Amplitude
VRT/CT peak to peak
1.9
Vp-p
Error Amp Section
Input Voltage
Input Bias Current
AVOL
VCOMP = 2.5V
2.42
2.50
–0.1
90
2.58
–2
V
µA
dB
MHz
dB
mA
mA
V
VFB = 5.0V
2 ≤ VO ≤ 4V
65
0.7
60
2
Unity Gain Bandwidth
PSRR
Note 1
1.0
12 ≤ VDD ≤ 18V
Output Sink Current
Output Source Current
VOUT High
VFB = 2.7V, VCOMP = 1.1V
VFB = 2.3V, VCOMP = 5V
VFB = 2.3V, RL = 15k to ground
VFB = 2.7V, RL = 15k to VREF
14
–1
–0.5
5
6.8
0.1
VOUT Low
1.1
V
M9999-042205
4
April 2005
MICREL [ MICREL SEMICONDUCTOR ]
