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Philips BUK205-50Y Specification Sheet

Topfet high side switch
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Philips Semiconductors
TOPFET high side switch
SMD version of BUK201-50Y
DESCRIPTION
Monolithic temperature and
overload protected power switch
based on MOSFET technology in a
5 pin plastic surface mount
envelope, configured as a single
high side switch.
APPLICATIONS
General controller for driving
lamps, motors, solenoids, heaters.
FEATURES
Vertical power DMOS switch
Low on-state resistance
5 V logic compatible input
Overtemperature protection -
self resets with hysteresis
Overload protection against
short circuit load with
output current limiting;
latched - reset by input
High supply voltage load
protection
Supply undervoltage lock out
Status indication for overload
protection activated
Diagnostic status indication
of open circuit load
Very low quiescent current
Voltage clamping for turn off of
inductive loads
ESD protection on all pins
Reverse battery and
overvoltage protection
PINNING - SOT426
PIN
DESCRIPTION
1
Ground
2
Input
3
(connected to mb)
4
Status
5
Load
mb
Battery
July 1996
QUICK REFERENCE DATA
SYMBOL
PARAMETER
I
Nominal load current (ISO)
L
SYMBOL
PARAMETER
V
Continuous off-state supply voltage
BG
I
Continuous load current
L
T
Continuous junction temperature
j
R
On-state resistance
ON
FUNCTIONAL BLOCK DIAGRAM
STATUS
INPUT
CONTROL &
PROTECTION
GROUND
Fig.1. Elements of the TOPFET HSS with internal ground resistor.
PIN CONFIGURATION
mb
3
1 2
4 5
Fig. 2.
1
CIRCUITS
RG
SYMBOL
I
S
Product specification
BUK205-50Y
MIN.
UNIT
6
A
MAX.
UNIT
50
V
15
A
150
˚C
60
m
BATT
POWER
MOSFET
LOAD
B
TOPFET
L
HSS
G
Fig. 3.
Rev 1.000

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Summary of Contents for Philips BUK205-50Y

  • Page 1 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y DESCRIPTION Monolithic temperature and overload protected power switch based on MOSFET technology in a 5 pin plastic surface mount envelope, configured as a single high side switch. APPLICATIONS General controller for driving lamps, motors, solenoids, heaters.

  • Page 2: Limiting Values

    Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y LIMITING VALUES Limiting values in accordance with the Absolute Maximum System (IEC 134) SYMBOL PARAMETER Battery voltages Continuous off-state supply voltage Reverse battery voltages Repetitive peak supply voltage Continuous reverse supply voltage...

  • Page 3: Static Characteristics

    Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y STATIC CHARACTERISTICS = 25 ˚C unless otherwise stated SYMBOL PARAMETER Clamping voltages Battery to ground Battery to load Negative load to ground Supply voltage Operating range Currents Nominal load current...
  • Page 4 External pull-up resistor 1 In the on-state, the switch detects whether the load current is less than the quoted open load threshold current. This is for status indication only. Typical hysteresis equals 140 mA. The thresholds are specified for supply voltage within the normal working range.

  • Page 5: Dynamic Characteristics

    Output capacitance Status capacitance 1 For a high side switch, the load pin voltage goes negative with respect to ground during the turn-off of an inductive load. This negative voltage is clamped by the device. 2 The load current is self-limited during the response time for short circuit load protection. Response time is measured from when input goes high.
  • Page 6 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y Fig.4. High side switch measurements schematic. (current and voltage conventions) Normalised Power Derating Tmb / C Fig.5. Normalised limiting power dissipation. % = 100 P (25 ˚C) = f(T IL / A Tmb / C Fig.6.
  • Page 7 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y IG / mA OPERATING VIG = 3 V QUIESCENT VIG = 0 V VBG / V Fig.10. Typical supply characteristics, 25 ˚C. = f(V ); parameter V IG / mA Tj / C Fig.11.
  • Page 8 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y VIG / V Tj / C Fig.16. Typical input threshold voltages. = f(T ); conditions V = 13 V, I VIG / V Tj / C Fig.17. Typical input clamping voltage.
  • Page 9 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y VSG / V VIG / V = Tj / C Fig.22. Typical status clamping voltage, V parameter V ; conditions I = 100 A, V IL(OC) / mA max. typ.
  • Page 10 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y VLG / V IL = 1 mA 7.5 A Tj / C Fig.28. Typical negative load clamping voltage. = f(T ); parameter I ; condition V VBL / V tp = 300 us Tj / C Fig.29.
  • Page 11 Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y IL / A typ. Tmb / C Fig.34. Typical overload current, V = f(T ); conditions V = 13 V; t VBL(TO) / V VBG / V Fig.35. Typical short circuit load threshold voltage.

  • Page 12: Mechanical Data

    Philips Semiconductors TOPFET high side switch SMD version of BUK201-50Y MECHANICAL DATA Dimensions in mm Net Mass: 1.5 g MOUNTING INSTRUCTIONS Dimensions in mm July 1996 10.3 MAX 0.85 MAX (x4) Fig.38. SOT426 mounting base connected to centre pin (cropped short) 11.5...

  • Page 13: Life Support Applications

    Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.

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