Technical Specification
BQ60120HEA30 ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Input:
Output:
Current:
Package:
35-75 V
12 V
30 A
Half-brick
T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient tem-
perature with appropriate power derating. Specifications subject to change without notice.
Min.
Typ.
Max.
100
80
100
2250
100
125
48
33.5
30.5
3.0
140
30
20
130
0\1.0\5.0
100\90
100
0.2
12.00
75
34.4
32.4
11.6
180
50
40
20
Units
V
V
V
V
°C
°C
V
V
V
V
A
mA
mA
mA
mA
A
µF\µH\µF
nH\µF
µF
Notes & Conditions
Continuous
Continuous
100ms transient, square wave
Basic insulation level, Pollution degree 2
See Figures 7 - 10 for derating
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage (input to output)
Operating Temperature
Storage Temperature
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Maximum Input Current
No-Load Input Current
Disabled Input Current
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
Input Filter Component Values (C
1
\L\C
2
)
Output Filter Component Values (L
out
\C
out
)
Recommended External Input Capacitance
Recommended External Input Capacitor ESR
1
-40
-55
35
31.5
29.5
INPUT CHARACTERISTICS
100% Load, 35 Vin, trimmed up 5%
RMS thru inductor; Figures
& 17
RMS; Figures
& 16
Fast blow external fuse recommended
Internal values; see Figure D
Internal values; see Figure D
Typical ESR 0.2
Ω
; see Figure 15
100kHz, -40
°
C to 100
°
C
100
0.04
11.88
1.5
12.12
Ω
V
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
Start-up Output Voltage Overshoot (with max. cap.)
Recommended External Output Capacitance
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
For a Step Change in Output Current (0.1A/µs)
For a Step Change in Output Current (5A/µs)
Settling Time
Turn-On Transient
Turn-On Time
Start-Up Inhibit Period
100% Load
50% Load
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature Limit
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance
11.75
+0.05 \ 6 +0.1 \ 12
+0.1 \ 12 +0.2 \ 24
+45
+90
12.33
60
20
37
1.8
0.3
0
80
300
500
100
120
40
30
40
3.2
0.6
>10,000
%\mV
%\mV
mV
V
mV
mV
A
A
A
A
µF
%
µF
dB
mV
mV
µs
0
34
0.8
44
Over sample, line, load, temperature & life
44µF local ceramic, Figures
& 18
Full Load; Figures
& 18
Full Load; Figures
& 18
Subject to thermal derating; Figures 7 - 10
Output Voltage 10% Low; Figure 19
Negative current drawn from output
Negative current drawn from output
12Vout at 30A resistive load
10,000µF, Iout=30A resistive load
Local ceramic
120 Hz; Figure 22
50% to 75% to 50% Iout max; Figure 13
50% to 75% to 50% Iout max; Figure 14
To within 1% Vout nom
Full load, Vout=90% nom.; Figures 11 & 12
Figures 1 - 6
Figures 1 - 6
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 7 - 10 for derating curves
Applies to BQ60120HEB30 only
DYNAMIC CHARACTERISTICS
8
2
14
3
95
95
20
4
ms
ms
%
%
EFFICIENCY
TEMPERATURE LIMITS FOR POWER DERATING CURVES
125
125
125
100
2250
30
1000
°C
°C
°C
°C
V
M
Ω
pF
ISOLATION CHARACTERISTICS
1. Electrolytic capacitor ESR tends to increase dramatically at low temperature.
Product # BQ60120HEA30
Phone 1-888-567-9596
Doc.# 005-2BH612M Rev. B
09/02/05
Page 4
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